2008-03-25 17:47:20 +00:00
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/*
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2012-07-20 09:15:04 +00:00
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* definition for kernel virtual machines on s390
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2008-03-25 17:47:20 +00:00
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*
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2012-07-20 09:15:04 +00:00
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* Copyright IBM Corp. 2008, 2009
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2008-03-25 17:47:20 +00:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License (version 2 only)
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* as published by the Free Software Foundation.
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*
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* Author(s): Carsten Otte <cotte@de.ibm.com>
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*/
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#ifndef ASM_KVM_HOST_H
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#define ASM_KVM_HOST_H
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2014-08-29 12:01:17 +00:00
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#include <linux/types.h>
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2009-05-12 15:21:49 +00:00
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#include <linux/hrtimer.h>
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#include <linux/interrupt.h>
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2014-08-29 12:01:17 +00:00
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#include <linux/kvm_types.h>
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2008-03-25 17:47:20 +00:00
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#include <linux/kvm_host.h>
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2013-10-07 14:13:44 +00:00
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#include <linux/kvm.h>
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2008-03-25 17:47:20 +00:00
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#include <asm/debug.h>
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2009-09-11 08:29:04 +00:00
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#include <asm/cpu.h>
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2015-10-06 10:25:59 +00:00
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#include <asm/fpu/api.h>
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2013-07-15 11:36:01 +00:00
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#include <asm/isc.h>
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2008-03-25 17:47:20 +00:00
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#define KVM_MAX_VCPUS 64
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2012-12-10 17:33:09 +00:00
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#define KVM_USER_MEM_SLOTS 32
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2008-03-25 17:47:20 +00:00
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2013-07-15 11:36:01 +00:00
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/*
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* These seem to be used for allocating ->chip in the routing table,
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* which we don't use. 4096 is an out-of-thin-air value. If we need
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* to look at ->chip later on, we'll need to revisit this.
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*/
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#define KVM_NR_IRQCHIPS 1
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#define KVM_IRQCHIP_NUM_PINS 4096
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2015-09-18 10:34:53 +00:00
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#define KVM_HALT_POLL_NS_DEFAULT 0
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2013-07-15 11:36:01 +00:00
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2014-10-14 13:29:30 +00:00
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#define SIGP_CTRL_C 0x80
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#define SIGP_CTRL_SCN_MASK 0x3f
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2014-02-21 07:59:59 +00:00
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2008-03-25 17:47:20 +00:00
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struct sca_entry {
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2014-10-14 13:29:30 +00:00
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__u8 reserved0;
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__u8 sigp_ctrl;
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__u16 reserved[3];
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2008-03-25 17:47:20 +00:00
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__u64 sda;
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__u64 reserved2[2];
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} __attribute__((packed));
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2014-01-10 13:33:28 +00:00
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union ipte_control {
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unsigned long val;
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struct {
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unsigned long k : 1;
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unsigned long kh : 31;
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unsigned long kg : 32;
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};
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};
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2008-03-25 17:47:20 +00:00
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struct sca_block {
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2014-01-10 13:33:28 +00:00
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union ipte_control ipte_control;
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2008-03-25 17:47:20 +00:00
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__u64 reserved[5];
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__u64 mcn;
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__u64 reserved2;
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struct sca_entry cpu[64];
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} __attribute__((packed));
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2011-11-17 10:00:41 +00:00
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#define CPUSTAT_STOPPED 0x80000000
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2008-03-25 17:47:20 +00:00
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#define CPUSTAT_WAIT 0x10000000
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#define CPUSTAT_ECALL_PEND 0x08000000
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#define CPUSTAT_STOP_INT 0x04000000
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#define CPUSTAT_IO_INT 0x02000000
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#define CPUSTAT_EXT_INT 0x01000000
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#define CPUSTAT_RUNNING 0x00800000
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#define CPUSTAT_RETAINED 0x00400000
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#define CPUSTAT_TIMING_SUB 0x00020000
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#define CPUSTAT_SIE_SUB 0x00010000
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#define CPUSTAT_RRF 0x00008000
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#define CPUSTAT_SLSV 0x00004000
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#define CPUSTAT_SLSR 0x00002000
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#define CPUSTAT_ZARCH 0x00000800
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#define CPUSTAT_MCDS 0x00000100
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#define CPUSTAT_SM 0x00000080
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2014-03-14 10:00:21 +00:00
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#define CPUSTAT_IBS 0x00000040
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2015-02-18 10:13:03 +00:00
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#define CPUSTAT_GED2 0x00000010
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2008-03-25 17:47:20 +00:00
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#define CPUSTAT_G 0x00000008
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2013-06-12 11:54:53 +00:00
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#define CPUSTAT_GED 0x00000004
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2008-03-25 17:47:20 +00:00
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#define CPUSTAT_J 0x00000002
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#define CPUSTAT_P 0x00000001
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2008-06-27 13:05:40 +00:00
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struct kvm_s390_sie_block {
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2008-03-25 17:47:20 +00:00
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atomic_t cpuflags; /* 0x0000 */
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2014-05-13 14:58:30 +00:00
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__u32 : 1; /* 0x0004 */
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__u32 prefix : 18;
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2015-02-02 14:49:35 +00:00
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__u32 : 1;
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__u32 ibc : 12;
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2013-05-17 12:41:34 +00:00
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__u8 reserved08[4]; /* 0x0008 */
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#define PROG_IN_SIE (1<<0)
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__u32 prog0c; /* 0x000c */
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2013-05-17 12:41:35 +00:00
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__u8 reserved10[16]; /* 0x0010 */
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2015-04-09 11:49:04 +00:00
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#define PROG_BLOCK_SIE (1<<0)
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#define PROG_REQUEST (1<<1)
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2013-05-17 12:41:35 +00:00
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atomic_t prog20; /* 0x0020 */
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__u8 reserved24[4]; /* 0x0024 */
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2008-03-25 17:47:20 +00:00
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__u64 cputm; /* 0x0028 */
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__u64 ckc; /* 0x0030 */
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__u64 epoch; /* 0x0038 */
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__u8 reserved40[4]; /* 0x0040 */
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KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
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#define LCTL_CR0 0x8000
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2012-12-20 14:32:08 +00:00
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#define LCTL_CR6 0x0200
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2014-01-23 11:26:52 +00:00
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#define LCTL_CR9 0x0040
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#define LCTL_CR10 0x0020
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#define LCTL_CR11 0x0010
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2012-12-20 14:32:09 +00:00
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#define LCTL_CR14 0x0002
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2008-03-25 17:47:20 +00:00
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__u16 lctl; /* 0x0044 */
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__s16 icpua; /* 0x0046 */
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2014-01-23 11:26:52 +00:00
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#define ICTL_PINT 0x20000000
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#define ICTL_LPSW 0x00400000
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#define ICTL_STCTL 0x00040000
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#define ICTL_ISKE 0x00004000
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#define ICTL_SSKE 0x00002000
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#define ICTL_RRBE 0x00001000
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2013-01-29 16:48:20 +00:00
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#define ICTL_TPROT 0x00000200
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2008-03-25 17:47:20 +00:00
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__u32 ictl; /* 0x0048 */
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__u32 eca; /* 0x004c */
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2014-03-03 09:55:13 +00:00
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#define ICPT_INST 0x04
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#define ICPT_PROGI 0x08
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#define ICPT_INSTPROGI 0x0C
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#define ICPT_OPEREXC 0x2C
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#define ICPT_PARTEXEC 0x38
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#define ICPT_IOINST 0x40
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2008-03-25 17:47:20 +00:00
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__u8 icptcode; /* 0x0050 */
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2014-11-12 16:13:29 +00:00
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__u8 icptstatus; /* 0x0051 */
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2008-03-25 17:47:20 +00:00
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__u16 ihcpu; /* 0x0052 */
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__u8 reserved54[2]; /* 0x0054 */
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__u16 ipa; /* 0x0056 */
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__u32 ipb; /* 0x0058 */
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__u32 scaoh; /* 0x005c */
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__u8 reserved60; /* 0x0060 */
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__u8 ecb; /* 0x0061 */
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2013-06-12 11:54:53 +00:00
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__u8 ecb2; /* 0x0062 */
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2014-09-03 08:13:53 +00:00
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#define ECB3_AES 0x04
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#define ECB3_DEA 0x08
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__u8 ecb3; /* 0x0063 */
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2008-03-25 17:47:20 +00:00
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__u32 scaol; /* 0x0064 */
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__u8 reserved68[4]; /* 0x0068 */
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__u32 todpr; /* 0x006c */
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2011-07-24 08:48:22 +00:00
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__u8 reserved70[32]; /* 0x0070 */
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2008-03-25 17:47:20 +00:00
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psw_t gpsw; /* 0x0090 */
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__u64 gg14; /* 0x00a0 */
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__u64 gg15; /* 0x00a8 */
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2014-01-15 15:46:07 +00:00
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__u8 reservedb0[20]; /* 0x00b0 */
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__u16 extcpuaddr; /* 0x00c4 */
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__u16 eic; /* 0x00c6 */
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__u32 reservedc8; /* 0x00c8 */
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2014-03-03 09:54:33 +00:00
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__u16 pgmilc; /* 0x00cc */
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__u16 iprcc; /* 0x00ce */
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__u32 dxc; /* 0x00d0 */
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__u16 mcn; /* 0x00d4 */
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__u8 perc; /* 0x00d6 */
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__u8 peratmid; /* 0x00d7 */
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__u64 peraddr; /* 0x00d8 */
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__u8 eai; /* 0x00e0 */
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__u8 peraid; /* 0x00e1 */
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__u8 oai; /* 0x00e2 */
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__u8 armid; /* 0x00e3 */
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__u8 reservede4[4]; /* 0x00e4 */
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__u64 tecmc; /* 0x00e8 */
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2014-06-27 18:46:01 +00:00
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__u8 reservedf0[12]; /* 0x00f0 */
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#define CRYCB_FORMAT1 0x00000001
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2015-01-13 16:33:26 +00:00
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#define CRYCB_FORMAT2 0x00000003
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2014-06-27 18:46:01 +00:00
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__u32 crycbd; /* 0x00fc */
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2008-03-25 17:47:20 +00:00
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__u64 gcr[16]; /* 0x0100 */
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__u64 gbea; /* 0x0180 */
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2009-06-23 15:24:07 +00:00
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__u8 reserved188[24]; /* 0x0188 */
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__u32 fac; /* 0x01a0 */
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2013-04-17 15:36:29 +00:00
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__u8 reserved1a4[20]; /* 0x01a4 */
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__u64 cbrlo; /* 0x01b8 */
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2014-04-30 17:39:46 +00:00
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__u8 reserved1c0[8]; /* 0x01c0 */
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__u32 ecd; /* 0x01c8 */
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__u8 reserved1cc[18]; /* 0x01cc */
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2014-02-10 14:32:19 +00:00
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__u64 pp; /* 0x01de */
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__u8 reserved1e6[2]; /* 0x01e6 */
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2013-06-28 11:30:24 +00:00
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__u64 itdba; /* 0x01e8 */
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__u8 reserved1f0[16]; /* 0x01f0 */
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2008-03-25 17:47:20 +00:00
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} __attribute__((packed));
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2013-06-28 11:30:24 +00:00
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struct kvm_s390_itdb {
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__u8 data[256];
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} __packed;
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2014-06-09 14:57:26 +00:00
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struct kvm_s390_vregs {
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__vector128 vrs[32];
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__u8 reserved200[512]; /* for future vector expansion */
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} __packed;
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2013-06-28 11:30:24 +00:00
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struct sie_page {
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struct kvm_s390_sie_block sie_block;
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__u8 reserved200[1024]; /* 0x0200 */
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struct kvm_s390_itdb itdb; /* 0x0600 */
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2014-06-09 14:57:26 +00:00
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__u8 reserved700[1280]; /* 0x0700 */
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struct kvm_s390_vregs vregs; /* 0x0c00 */
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2013-06-28 11:30:24 +00:00
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} __packed;
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2008-03-25 17:47:20 +00:00
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struct kvm_vcpu_stat {
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u32 exit_userspace;
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2008-05-07 07:22:53 +00:00
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u32 exit_null;
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2008-03-25 17:47:23 +00:00
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u32 exit_external_request;
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u32 exit_external_interrupt;
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u32 exit_stop_request;
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u32 exit_validity;
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KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
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u32 exit_instruction;
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kvm: add halt_poll_ns module parameter
This patch introduces a new module parameter for the KVM module; when it
is present, KVM attempts a bit of polling on every HLT before scheduling
itself out via kvm_vcpu_block.
This parameter helps a lot for latency-bound workloads---in particular
I tested it with O_DSYNC writes with a battery-backed disk in the host.
In this case, writes are fast (because the data doesn't have to go all
the way to the platters) but they cannot be merged by either the host or
the guest. KVM's performance here is usually around 30% of bare metal,
or 50% if you use cache=directsync or cache=writethrough (these
parameters avoid that the guest sends pointless flush requests, and
at the same time they are not slow because of the battery-backed cache).
The bad performance happens because on every halt the host CPU decides
to halt itself too. When the interrupt comes, the vCPU thread is then
migrated to a new physical CPU, and in general the latency is horrible
because the vCPU thread has to be scheduled back in.
With this patch performance reaches 60-65% of bare metal and, more
important, 99% of what you get if you use idle=poll in the guest. This
means that the tunable gets rid of this particular bottleneck, and more
work can be done to improve performance in the kernel or QEMU.
Of course there is some price to pay; every time an otherwise idle vCPUs
is interrupted by an interrupt, it will poll unnecessarily and thus
impose a little load on the host. The above results were obtained with
a mostly random value of the parameter (500000), and the load was around
1.5-2.5% CPU usage on one of the host's core for each idle guest vCPU.
The patch also adds a new stat, /sys/kernel/debug/kvm/halt_successful_poll,
that can be used to tune the parameter. It counts how many HLT
instructions received an interrupt during the polling period; each
successful poll avoids that Linux schedules the VCPU thread out and back
in, and may also avoid a likely trip to C1 and back for the physical CPU.
While the VM is idle, a Linux 4 VCPU VM halts around 10 times per second.
Of these halts, almost all are failed polls. During the benchmark,
instead, basically all halts end within the polling period, except a more
or less constant stream of 50 per second coming from vCPUs that are not
running the benchmark. The wasted time is thus very low. Things may
be slightly different for Windows VMs, which have a ~10 ms timer tick.
The effect is also visible on Marcelo's recently-introduced latency
test for the TSC deadline timer. Though of course a non-RT kernel has
awful latency bounds, the latency of the timer is around 8000-10000 clock
cycles compared to 20000-120000 without setting halt_poll_ns. For the TSC
deadline timer, thus, the effect is both a smaller average latency and
a smaller variance.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-04 17:20:58 +00:00
|
|
|
u32 halt_successful_poll;
|
2015-09-15 16:27:57 +00:00
|
|
|
u32 halt_attempted_poll;
|
2014-07-11 08:00:43 +00:00
|
|
|
u32 halt_wakeup;
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
u32 instruction_lctl;
|
2008-07-25 13:52:44 +00:00
|
|
|
u32 instruction_lctlg;
|
2014-01-23 09:47:13 +00:00
|
|
|
u32 instruction_stctl;
|
|
|
|
u32 instruction_stctg;
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
u32 exit_program_interruption;
|
|
|
|
u32 exit_instr_and_program;
|
2011-10-18 10:27:15 +00:00
|
|
|
u32 deliver_external_call;
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
u32 deliver_emergency_signal;
|
|
|
|
u32 deliver_service_signal;
|
|
|
|
u32 deliver_virtio_interrupt;
|
|
|
|
u32 deliver_stop_signal;
|
|
|
|
u32 deliver_prefix_signal;
|
|
|
|
u32 deliver_restart_signal;
|
|
|
|
u32 deliver_program_int;
|
2012-12-20 14:32:08 +00:00
|
|
|
u32 deliver_io_int;
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
u32 exit_wait_state;
|
2013-06-12 11:54:53 +00:00
|
|
|
u32 instruction_pfmf;
|
2008-03-25 17:47:29 +00:00
|
|
|
u32 instruction_stidp;
|
|
|
|
u32 instruction_spx;
|
|
|
|
u32 instruction_stpx;
|
|
|
|
u32 instruction_stap;
|
|
|
|
u32 instruction_storage_key;
|
2014-01-10 13:33:28 +00:00
|
|
|
u32 instruction_ipte_interlock;
|
2008-03-25 17:47:29 +00:00
|
|
|
u32 instruction_stsch;
|
|
|
|
u32 instruction_chsc;
|
|
|
|
u32 instruction_stsi;
|
|
|
|
u32 instruction_stfl;
|
2011-07-24 08:48:17 +00:00
|
|
|
u32 instruction_tprot;
|
2013-04-17 15:36:29 +00:00
|
|
|
u32 instruction_essa;
|
2008-03-25 17:47:31 +00:00
|
|
|
u32 instruction_sigp_sense;
|
2011-11-17 10:00:42 +00:00
|
|
|
u32 instruction_sigp_sense_running;
|
2011-10-18 10:27:15 +00:00
|
|
|
u32 instruction_sigp_external_call;
|
2008-03-25 17:47:31 +00:00
|
|
|
u32 instruction_sigp_emergency;
|
2014-05-23 10:25:11 +00:00
|
|
|
u32 instruction_sigp_cond_emergency;
|
|
|
|
u32 instruction_sigp_start;
|
2008-03-25 17:47:31 +00:00
|
|
|
u32 instruction_sigp_stop;
|
2014-05-23 10:25:11 +00:00
|
|
|
u32 instruction_sigp_stop_store_status;
|
|
|
|
u32 instruction_sigp_store_status;
|
2015-02-12 14:06:34 +00:00
|
|
|
u32 instruction_sigp_store_adtl_status;
|
2008-03-25 17:47:31 +00:00
|
|
|
u32 instruction_sigp_arch;
|
|
|
|
u32 instruction_sigp_prefix;
|
|
|
|
u32 instruction_sigp_restart;
|
2014-05-23 10:25:11 +00:00
|
|
|
u32 instruction_sigp_init_cpu_reset;
|
|
|
|
u32 instruction_sigp_cpu_reset;
|
|
|
|
u32 instruction_sigp_unknown;
|
2011-10-30 14:17:03 +00:00
|
|
|
u32 diagnose_10;
|
2008-03-25 17:47:34 +00:00
|
|
|
u32 diagnose_44;
|
2012-04-25 13:30:38 +00:00
|
|
|
u32 diagnose_9c;
|
2015-07-07 13:19:32 +00:00
|
|
|
u32 diagnose_258;
|
|
|
|
u32 diagnose_308;
|
|
|
|
u32 diagnose_500;
|
2008-03-25 17:47:20 +00:00
|
|
|
};
|
|
|
|
|
2014-02-11 10:07:05 +00:00
|
|
|
#define PGM_OPERATION 0x01
|
|
|
|
#define PGM_PRIVILEGED_OP 0x02
|
|
|
|
#define PGM_EXECUTE 0x03
|
|
|
|
#define PGM_PROTECTION 0x04
|
|
|
|
#define PGM_ADDRESSING 0x05
|
|
|
|
#define PGM_SPECIFICATION 0x06
|
|
|
|
#define PGM_DATA 0x07
|
|
|
|
#define PGM_FIXED_POINT_OVERFLOW 0x08
|
|
|
|
#define PGM_FIXED_POINT_DIVIDE 0x09
|
|
|
|
#define PGM_DECIMAL_OVERFLOW 0x0a
|
|
|
|
#define PGM_DECIMAL_DIVIDE 0x0b
|
|
|
|
#define PGM_HFP_EXPONENT_OVERFLOW 0x0c
|
|
|
|
#define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
|
|
|
|
#define PGM_HFP_SIGNIFICANCE 0x0e
|
|
|
|
#define PGM_HFP_DIVIDE 0x0f
|
|
|
|
#define PGM_SEGMENT_TRANSLATION 0x10
|
|
|
|
#define PGM_PAGE_TRANSLATION 0x11
|
|
|
|
#define PGM_TRANSLATION_SPEC 0x12
|
|
|
|
#define PGM_SPECIAL_OPERATION 0x13
|
|
|
|
#define PGM_OPERAND 0x15
|
|
|
|
#define PGM_TRACE_TABEL 0x16
|
2015-02-02 20:01:06 +00:00
|
|
|
#define PGM_VECTOR_PROCESSING 0x1b
|
2014-02-11 10:07:05 +00:00
|
|
|
#define PGM_SPACE_SWITCH 0x1c
|
|
|
|
#define PGM_HFP_SQUARE_ROOT 0x1d
|
|
|
|
#define PGM_PC_TRANSLATION_SPEC 0x1f
|
|
|
|
#define PGM_AFX_TRANSLATION 0x20
|
|
|
|
#define PGM_ASX_TRANSLATION 0x21
|
|
|
|
#define PGM_LX_TRANSLATION 0x22
|
|
|
|
#define PGM_EX_TRANSLATION 0x23
|
|
|
|
#define PGM_PRIMARY_AUTHORITY 0x24
|
|
|
|
#define PGM_SECONDARY_AUTHORITY 0x25
|
|
|
|
#define PGM_LFX_TRANSLATION 0x26
|
|
|
|
#define PGM_LSX_TRANSLATION 0x27
|
|
|
|
#define PGM_ALET_SPECIFICATION 0x28
|
|
|
|
#define PGM_ALEN_TRANSLATION 0x29
|
|
|
|
#define PGM_ALE_SEQUENCE 0x2a
|
|
|
|
#define PGM_ASTE_VALIDITY 0x2b
|
|
|
|
#define PGM_ASTE_SEQUENCE 0x2c
|
|
|
|
#define PGM_EXTENDED_AUTHORITY 0x2d
|
|
|
|
#define PGM_LSTE_SEQUENCE 0x2e
|
|
|
|
#define PGM_ASTE_INSTANCE 0x2f
|
|
|
|
#define PGM_STACK_FULL 0x30
|
|
|
|
#define PGM_STACK_EMPTY 0x31
|
|
|
|
#define PGM_STACK_SPECIFICATION 0x32
|
|
|
|
#define PGM_STACK_TYPE 0x33
|
|
|
|
#define PGM_STACK_OPERATION 0x34
|
|
|
|
#define PGM_ASCE_TYPE 0x38
|
|
|
|
#define PGM_REGION_FIRST_TRANS 0x39
|
|
|
|
#define PGM_REGION_SECOND_TRANS 0x3a
|
|
|
|
#define PGM_REGION_THIRD_TRANS 0x3b
|
|
|
|
#define PGM_MONITOR 0x40
|
|
|
|
#define PGM_PER 0x80
|
|
|
|
#define PGM_CRYPTO_OPERATION 0x119
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
|
2013-07-29 18:54:15 +00:00
|
|
|
/* irq types in order of priority */
|
|
|
|
enum irq_types {
|
|
|
|
IRQ_PEND_MCHK_EX = 0,
|
|
|
|
IRQ_PEND_SVC,
|
|
|
|
IRQ_PEND_PROG,
|
|
|
|
IRQ_PEND_MCHK_REP,
|
|
|
|
IRQ_PEND_EXT_IRQ_KEY,
|
|
|
|
IRQ_PEND_EXT_MALFUNC,
|
|
|
|
IRQ_PEND_EXT_EMERGENCY,
|
|
|
|
IRQ_PEND_EXT_EXTERNAL,
|
|
|
|
IRQ_PEND_EXT_CLOCK_COMP,
|
|
|
|
IRQ_PEND_EXT_CPU_TIMER,
|
|
|
|
IRQ_PEND_EXT_TIMING,
|
|
|
|
IRQ_PEND_EXT_SERVICE,
|
|
|
|
IRQ_PEND_EXT_HOST,
|
|
|
|
IRQ_PEND_PFAULT_INIT,
|
|
|
|
IRQ_PEND_PFAULT_DONE,
|
|
|
|
IRQ_PEND_VIRTIO,
|
|
|
|
IRQ_PEND_IO_ISC_0,
|
|
|
|
IRQ_PEND_IO_ISC_1,
|
|
|
|
IRQ_PEND_IO_ISC_2,
|
|
|
|
IRQ_PEND_IO_ISC_3,
|
|
|
|
IRQ_PEND_IO_ISC_4,
|
|
|
|
IRQ_PEND_IO_ISC_5,
|
|
|
|
IRQ_PEND_IO_ISC_6,
|
|
|
|
IRQ_PEND_IO_ISC_7,
|
|
|
|
IRQ_PEND_SIGP_STOP,
|
|
|
|
IRQ_PEND_RESTART,
|
|
|
|
IRQ_PEND_SET_PREFIX,
|
|
|
|
IRQ_PEND_COUNT
|
|
|
|
};
|
|
|
|
|
2013-07-03 13:18:35 +00:00
|
|
|
/* We have 2M for virtio device descriptor pages. Smallest amount of
|
|
|
|
* memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
|
|
|
|
*/
|
|
|
|
#define KVM_S390_MAX_VIRTIO_IRQS 87381
|
|
|
|
|
2013-07-29 18:54:15 +00:00
|
|
|
/*
|
|
|
|
* Repressible (non-floating) machine check interrupts
|
|
|
|
* subclass bits in MCIC
|
|
|
|
*/
|
|
|
|
#define MCHK_EXTD_BIT 58
|
|
|
|
#define MCHK_DEGR_BIT 56
|
|
|
|
#define MCHK_WARN_BIT 55
|
|
|
|
#define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
|
|
|
|
(1UL << MCHK_EXTD_BIT) | \
|
|
|
|
(1UL << MCHK_WARN_BIT))
|
|
|
|
|
|
|
|
/* Exigent machine check interrupts subclass bits in MCIC */
|
|
|
|
#define MCHK_SD_BIT 63
|
|
|
|
#define MCHK_PD_BIT 62
|
|
|
|
#define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))
|
|
|
|
|
|
|
|
#define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) | \
|
|
|
|
(1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
|
|
|
|
(1UL << IRQ_PEND_EXT_CPU_TIMER) | \
|
|
|
|
(1UL << IRQ_PEND_EXT_MALFUNC) | \
|
|
|
|
(1UL << IRQ_PEND_EXT_EMERGENCY) | \
|
|
|
|
(1UL << IRQ_PEND_EXT_EXTERNAL) | \
|
|
|
|
(1UL << IRQ_PEND_EXT_TIMING) | \
|
|
|
|
(1UL << IRQ_PEND_EXT_HOST) | \
|
|
|
|
(1UL << IRQ_PEND_EXT_SERVICE) | \
|
|
|
|
(1UL << IRQ_PEND_VIRTIO) | \
|
|
|
|
(1UL << IRQ_PEND_PFAULT_INIT) | \
|
|
|
|
(1UL << IRQ_PEND_PFAULT_DONE))
|
|
|
|
|
|
|
|
#define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
|
|
|
|
(1UL << IRQ_PEND_IO_ISC_1) | \
|
|
|
|
(1UL << IRQ_PEND_IO_ISC_2) | \
|
|
|
|
(1UL << IRQ_PEND_IO_ISC_3) | \
|
|
|
|
(1UL << IRQ_PEND_IO_ISC_4) | \
|
|
|
|
(1UL << IRQ_PEND_IO_ISC_5) | \
|
|
|
|
(1UL << IRQ_PEND_IO_ISC_6) | \
|
|
|
|
(1UL << IRQ_PEND_IO_ISC_7))
|
|
|
|
|
|
|
|
#define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
|
|
|
|
(1UL << IRQ_PEND_MCHK_EX))
|
|
|
|
|
2008-06-27 13:05:40 +00:00
|
|
|
struct kvm_s390_interrupt_info {
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
struct list_head list;
|
|
|
|
u64 type;
|
|
|
|
union {
|
2008-06-27 13:05:40 +00:00
|
|
|
struct kvm_s390_io_info io;
|
|
|
|
struct kvm_s390_ext_info ext;
|
|
|
|
struct kvm_s390_pgm_info pgm;
|
2011-07-24 08:48:31 +00:00
|
|
|
struct kvm_s390_emerg_info emerg;
|
2011-10-18 10:27:15 +00:00
|
|
|
struct kvm_s390_extcall_info extcall;
|
2008-06-27 13:05:40 +00:00
|
|
|
struct kvm_s390_prefix_info prefix;
|
2014-10-15 14:48:16 +00:00
|
|
|
struct kvm_s390_stop_info stop;
|
2012-12-20 14:32:09 +00:00
|
|
|
struct kvm_s390_mchk_info mchk;
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
};
|
|
|
|
};
|
|
|
|
|
2013-07-29 18:54:15 +00:00
|
|
|
struct kvm_s390_irq_payload {
|
|
|
|
struct kvm_s390_io_info io;
|
|
|
|
struct kvm_s390_ext_info ext;
|
|
|
|
struct kvm_s390_pgm_info pgm;
|
|
|
|
struct kvm_s390_emerg_info emerg;
|
|
|
|
struct kvm_s390_extcall_info extcall;
|
|
|
|
struct kvm_s390_prefix_info prefix;
|
2014-10-15 14:48:16 +00:00
|
|
|
struct kvm_s390_stop_info stop;
|
2013-07-29 18:54:15 +00:00
|
|
|
struct kvm_s390_mchk_info mchk;
|
|
|
|
};
|
|
|
|
|
2008-06-27 13:05:40 +00:00
|
|
|
struct kvm_s390_local_interrupt {
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
spinlock_t lock;
|
2008-06-27 13:05:40 +00:00
|
|
|
struct kvm_s390_float_interrupt *float_int;
|
2013-06-12 11:54:55 +00:00
|
|
|
wait_queue_head_t *wq;
|
2008-03-25 17:47:31 +00:00
|
|
|
atomic_t *cpuflags;
|
2013-07-29 18:54:15 +00:00
|
|
|
DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
|
|
|
|
struct kvm_s390_irq_payload irq;
|
|
|
|
unsigned long pending_irqs;
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
};
|
|
|
|
|
2013-07-03 13:18:35 +00:00
|
|
|
#define FIRQ_LIST_IO_ISC_0 0
|
|
|
|
#define FIRQ_LIST_IO_ISC_1 1
|
|
|
|
#define FIRQ_LIST_IO_ISC_2 2
|
|
|
|
#define FIRQ_LIST_IO_ISC_3 3
|
|
|
|
#define FIRQ_LIST_IO_ISC_4 4
|
|
|
|
#define FIRQ_LIST_IO_ISC_5 5
|
|
|
|
#define FIRQ_LIST_IO_ISC_6 6
|
|
|
|
#define FIRQ_LIST_IO_ISC_7 7
|
|
|
|
#define FIRQ_LIST_PFAULT 8
|
|
|
|
#define FIRQ_LIST_VIRTIO 9
|
|
|
|
#define FIRQ_LIST_COUNT 10
|
|
|
|
#define FIRQ_CNTR_IO 0
|
|
|
|
#define FIRQ_CNTR_SERVICE 1
|
|
|
|
#define FIRQ_CNTR_VIRTIO 2
|
|
|
|
#define FIRQ_CNTR_PFAULT 3
|
|
|
|
#define FIRQ_MAX_COUNT 4
|
|
|
|
|
2008-06-27 13:05:40 +00:00
|
|
|
struct kvm_s390_float_interrupt {
|
2013-07-03 13:18:35 +00:00
|
|
|
unsigned long pending_irqs;
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
spinlock_t lock;
|
2013-07-03 13:18:35 +00:00
|
|
|
struct list_head lists[FIRQ_LIST_COUNT];
|
|
|
|
int counters[FIRQ_MAX_COUNT];
|
|
|
|
struct kvm_s390_mchk_info mchk;
|
|
|
|
struct kvm_s390_ext_info srv_signal;
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
int next_rr_cpu;
|
2014-03-18 15:34:18 +00:00
|
|
|
unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
};
|
|
|
|
|
2014-01-23 11:26:52 +00:00
|
|
|
struct kvm_hw_wp_info_arch {
|
|
|
|
unsigned long addr;
|
|
|
|
unsigned long phys_addr;
|
|
|
|
int len;
|
|
|
|
char *old_data;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct kvm_hw_bp_info_arch {
|
|
|
|
unsigned long addr;
|
|
|
|
int len;
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Only the upper 16 bits of kvm_guest_debug->control are arch specific.
|
|
|
|
* Further KVM_GUESTDBG flags which an be used from userspace can be found in
|
|
|
|
* arch/s390/include/uapi/asm/kvm.h
|
|
|
|
*/
|
|
|
|
#define KVM_GUESTDBG_EXIT_PENDING 0x10000000
|
|
|
|
|
|
|
|
#define guestdbg_enabled(vcpu) \
|
|
|
|
(vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
|
|
|
|
#define guestdbg_sstep_enabled(vcpu) \
|
|
|
|
(vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
|
|
|
|
#define guestdbg_hw_bp_enabled(vcpu) \
|
|
|
|
(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
|
|
|
|
#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
|
|
|
|
(vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
|
|
|
|
|
|
|
|
struct kvm_guestdbg_info_arch {
|
|
|
|
unsigned long cr0;
|
|
|
|
unsigned long cr9;
|
|
|
|
unsigned long cr10;
|
|
|
|
unsigned long cr11;
|
|
|
|
struct kvm_hw_bp_info_arch *hw_bp_info;
|
|
|
|
struct kvm_hw_wp_info_arch *hw_wp_info;
|
|
|
|
int nr_hw_bp;
|
|
|
|
int nr_hw_wp;
|
|
|
|
unsigned long last_bp;
|
|
|
|
};
|
KVM: s390: interrupt subsystem, cpu timer, waitpsw
This patch contains the s390 interrupt subsystem (similar to in kernel apic)
including timer interrupts (similar to in-kernel-pit) and enabled wait
(similar to in kernel hlt).
In order to achieve that, this patch also introduces intercept handling
for instruction intercepts, and it implements load control instructions.
This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both
the vm file descriptors and the vcpu file descriptors. In case this ioctl is
issued against a vm file descriptor, the interrupt is considered floating.
Floating interrupts may be delivered to any virtual cpu in the configuration.
The following interrupts are supported:
SIGP STOP - interprocessor signal that stops a remote cpu
SIGP SET PREFIX - interprocessor signal that sets the prefix register of a
(stopped) remote cpu
INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed
and for smp_call_function() in the guest.
PROGRAM INT - exception during program execution such as page fault, illegal
instruction and friends
RESTART - interprocessor signal that starts a stopped cpu
INT VIRTIO - floating interrupt for virtio signalisation
INT SERVICE - floating interrupt for signalisations from the system
service processor
struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting
an interrupt, also carrys parameter data for interrupts along with the interrupt
type. Interrupts on s390 usually have a state that represents the current
operation, or identifies which device has caused the interruption on s390.
kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a
disabled wait (that is, disabled for interrupts), we exit to userspace. In case
of an enabled wait we set up a timer that equals the cpu clock comparator value
and sleep on a wait queue.
[christian: change virtio interrupt to 0x2603]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-03-25 17:47:26 +00:00
|
|
|
|
2008-03-25 17:47:20 +00:00
|
|
|
struct kvm_vcpu_arch {
|
2008-06-27 13:05:40 +00:00
|
|
|
struct kvm_s390_sie_block *sie_block;
|
2008-03-25 17:47:20 +00:00
|
|
|
unsigned int host_acrs[NUM_ACRS];
|
s390/kernel: lazy restore fpu registers
Improve the save and restore behavior of FPU register contents to use the
vector extension within the kernel.
The kernel does not use floating-point or vector registers and, therefore,
saving and restoring the FPU register contents are performed for handling
signals or switching processes only. To prepare for using vector
instructions and vector registers within the kernel, enhance the save
behavior and implement a lazy restore at return to user space from a
system call or interrupt.
To implement the lazy restore, the save_fpu_regs() sets a CPU information
flag, CIF_FPU, to indicate that the FPU registers must be restored.
Saving and setting CIF_FPU is performed in an atomic fashion to be
interrupt-safe. When the kernel wants to use the vector extension or
wants to change the FPU register state for a task during signal handling,
the save_fpu_regs() must be called first. The CIF_FPU flag is also set at
process switch. At return to user space, the FPU state is restored. In
particular, the FPU state includes the floating-point or vector register
contents, as well as, vector-enablement and floating-point control. The
FPU state restore and clearing CIF_FPU is also performed in an atomic
fashion.
For KVM, the restore of the FPU register state is performed when restoring
the general-purpose guest registers before the SIE instructions is started.
Because the path towards the SIE instruction is interruptible, the CIF_FPU
flag must be checked again right before going into SIE. If set, the guest
registers must be reloaded again by re-entering the outer SIE loop. This
is the same behavior as if the SIE critical section is interrupted.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-06-10 10:53:42 +00:00
|
|
|
struct fpu host_fpregs;
|
|
|
|
struct fpu guest_fpregs;
|
2008-06-27 13:05:40 +00:00
|
|
|
struct kvm_s390_local_interrupt local_int;
|
2009-05-12 15:21:49 +00:00
|
|
|
struct hrtimer ckc_timer;
|
2014-01-01 15:31:49 +00:00
|
|
|
struct kvm_s390_pgm_info pgm;
|
2008-03-25 17:47:29 +00:00
|
|
|
union {
|
2009-09-11 08:29:04 +00:00
|
|
|
struct cpuid cpu_id;
|
|
|
|
u64 stidp_data;
|
2008-03-25 17:47:29 +00:00
|
|
|
};
|
2011-07-24 08:48:21 +00:00
|
|
|
struct gmap *gmap;
|
2014-01-23 11:26:52 +00:00
|
|
|
struct kvm_guestdbg_info_arch guestdbg;
|
2013-10-07 15:11:48 +00:00
|
|
|
unsigned long pfault_token;
|
|
|
|
unsigned long pfault_select;
|
|
|
|
unsigned long pfault_compare;
|
2008-03-25 17:47:20 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct kvm_vm_stat {
|
|
|
|
u32 remote_tlb_flush;
|
|
|
|
};
|
|
|
|
|
2012-02-08 04:02:18 +00:00
|
|
|
struct kvm_arch_memory_slot {
|
|
|
|
};
|
|
|
|
|
2013-07-15 11:36:01 +00:00
|
|
|
struct s390_map_info {
|
|
|
|
struct list_head list;
|
|
|
|
__u64 guest_addr;
|
|
|
|
__u64 addr;
|
|
|
|
struct page *page;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct s390_io_adapter {
|
|
|
|
unsigned int id;
|
|
|
|
int isc;
|
|
|
|
bool maskable;
|
|
|
|
bool masked;
|
|
|
|
bool swap;
|
|
|
|
struct rw_semaphore maps_lock;
|
|
|
|
struct list_head maps;
|
|
|
|
atomic_t nr_maps;
|
|
|
|
};
|
|
|
|
|
|
|
|
#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
|
|
|
|
#define MAX_S390_ADAPTER_MAPS 256
|
|
|
|
|
2015-02-02 14:42:51 +00:00
|
|
|
/* maximum size of facilities and facility mask is 2k bytes */
|
|
|
|
#define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
|
|
|
|
#define S390_ARCH_FAC_LIST_SIZE_U64 \
|
|
|
|
(S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
|
|
|
|
#define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
|
|
|
|
#define S390_ARCH_FAC_MASK_SIZE_U64 \
|
|
|
|
(S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
|
|
|
|
|
2015-02-24 12:51:04 +00:00
|
|
|
struct kvm_s390_fac {
|
|
|
|
/* facility list requested by guest */
|
|
|
|
__u64 list[S390_ARCH_FAC_LIST_SIZE_U64];
|
|
|
|
/* facility mask supported by kvm & hosting machine */
|
|
|
|
__u64 mask[S390_ARCH_FAC_LIST_SIZE_U64];
|
2015-02-02 14:42:51 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct kvm_s390_cpu_model {
|
2015-02-24 12:51:04 +00:00
|
|
|
struct kvm_s390_fac *fac;
|
2015-02-02 14:42:51 +00:00
|
|
|
struct cpuid cpu_id;
|
2015-02-02 14:49:35 +00:00
|
|
|
unsigned short ibc;
|
2015-02-02 14:42:51 +00:00
|
|
|
};
|
|
|
|
|
2014-06-27 18:46:01 +00:00
|
|
|
struct kvm_s390_crypto {
|
|
|
|
struct kvm_s390_crypto_cb *crycb;
|
|
|
|
__u32 crycbd;
|
2014-09-03 08:13:53 +00:00
|
|
|
__u8 aes_kw;
|
|
|
|
__u8 dea_kw;
|
2014-06-27 18:46:01 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct kvm_s390_crypto_cb {
|
2014-09-03 08:13:53 +00:00
|
|
|
__u8 reserved00[72]; /* 0x0000 */
|
|
|
|
__u8 dea_wrapping_key_mask[24]; /* 0x0048 */
|
|
|
|
__u8 aes_wrapping_key_mask[32]; /* 0x0060 */
|
2015-01-13 16:33:26 +00:00
|
|
|
__u8 reserved80[128]; /* 0x0080 */
|
2014-06-27 18:46:01 +00:00
|
|
|
};
|
|
|
|
|
2008-03-25 17:47:20 +00:00
|
|
|
struct kvm_arch{
|
|
|
|
struct sca_block *sca;
|
|
|
|
debug_info_t *dbf;
|
2008-06-27 13:05:40 +00:00
|
|
|
struct kvm_s390_float_interrupt float_int;
|
2013-10-07 14:13:45 +00:00
|
|
|
struct kvm_device *flic;
|
2011-07-24 08:48:21 +00:00
|
|
|
struct gmap *gmap;
|
2012-12-20 14:32:12 +00:00
|
|
|
int css_support;
|
2013-07-15 11:36:01 +00:00
|
|
|
int use_irqchip;
|
2014-03-25 12:47:11 +00:00
|
|
|
int use_cmma;
|
2014-04-10 15:35:00 +00:00
|
|
|
int user_cpu_state_ctrl;
|
2014-10-09 12:10:13 +00:00
|
|
|
int user_sigp;
|
2015-01-30 15:55:56 +00:00
|
|
|
int user_stsi;
|
2013-07-15 11:36:01 +00:00
|
|
|
struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
|
2014-01-10 13:33:28 +00:00
|
|
|
wait_queue_head_t ipte_wq;
|
2014-10-01 12:48:42 +00:00
|
|
|
int ipte_lock_count;
|
|
|
|
struct mutex ipte_mutex;
|
2014-03-14 10:00:21 +00:00
|
|
|
spinlock_t start_stop_lock;
|
2015-02-02 14:42:51 +00:00
|
|
|
struct kvm_s390_cpu_model model;
|
2014-06-27 18:46:01 +00:00
|
|
|
struct kvm_s390_crypto crypto;
|
2014-11-25 14:46:02 +00:00
|
|
|
u64 epoch;
|
2008-03-25 17:47:20 +00:00
|
|
|
};
|
|
|
|
|
2013-07-26 13:04:07 +00:00
|
|
|
#define KVM_HVA_ERR_BAD (-1UL)
|
|
|
|
#define KVM_HVA_ERR_RO_BAD (-2UL)
|
|
|
|
|
|
|
|
static inline bool kvm_is_error_hva(unsigned long addr)
|
|
|
|
{
|
|
|
|
return IS_ERR_VALUE(addr);
|
|
|
|
}
|
|
|
|
|
2013-10-07 15:11:48 +00:00
|
|
|
#define ASYNC_PF_PER_VCPU 64
|
|
|
|
struct kvm_arch_async_pf {
|
|
|
|
unsigned long pfault_token;
|
|
|
|
};
|
|
|
|
|
|
|
|
bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
|
|
|
|
|
|
|
|
void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
|
|
|
|
struct kvm_async_pf *work);
|
|
|
|
|
|
|
|
void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
|
|
|
|
struct kvm_async_pf *work);
|
|
|
|
|
|
|
|
void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
|
|
|
|
struct kvm_async_pf *work);
|
|
|
|
|
2012-01-11 10:20:32 +00:00
|
|
|
extern int sie64a(struct kvm_s390_sie_block *, u64 *);
|
2013-06-12 11:54:56 +00:00
|
|
|
extern char sie_exit;
|
2014-08-28 13:13:02 +00:00
|
|
|
|
2014-08-28 13:13:03 +00:00
|
|
|
static inline void kvm_arch_hardware_disable(void) {}
|
2014-08-28 13:13:02 +00:00
|
|
|
static inline void kvm_arch_check_processor_compat(void *rtn) {}
|
|
|
|
static inline void kvm_arch_sync_events(struct kvm *kvm) {}
|
|
|
|
static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
|
|
|
|
static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
|
|
|
|
static inline void kvm_arch_free_memslot(struct kvm *kvm,
|
|
|
|
struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}
|
2015-05-17 19:26:08 +00:00
|
|
|
static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
|
2014-08-28 13:13:02 +00:00
|
|
|
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
|
|
|
|
static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
|
|
|
|
struct kvm_memory_slot *slot) {}
|
2015-08-27 14:41:15 +00:00
|
|
|
static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
|
|
|
|
static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
|
2014-08-28 13:13:02 +00:00
|
|
|
|
2008-03-25 17:47:20 +00:00
|
|
|
#endif
|