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05436815fd
Remove second 'should' Spelling replacements aqcuire -> acquire applcations -> applications assumings -> assumes begining -> beginning commited -> committed contol -> control inbetween -> in between resorces -> resources succesful -> successful successfule -> successful Signed-off-by: Tom Rix <trix@redhat.com> Signed-off-by: Zack Rusin <zackr@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220730135704.2889434-1-trix@redhat.com
146 lines
4.8 KiB
C
146 lines
4.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
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/**********************************************************
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* Copyright 2015-2021 VMware, Inc.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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**********************************************************/
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#ifndef VM_BASIC_TYPES_H
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#define VM_BASIC_TYPES_H
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <asm/page.h>
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typedef u32 uint32;
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typedef s32 int32;
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typedef u64 uint64;
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typedef u16 uint16;
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typedef s16 int16;
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typedef u8 uint8;
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typedef s8 int8;
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typedef uint64 PA;
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typedef uint32 PPN;
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typedef uint32 PPN32;
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typedef uint64 PPN64;
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typedef bool Bool;
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#define MAX_UINT64 U64_MAX
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#define MAX_UINT32 U32_MAX
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#define MAX_UINT16 U16_MAX
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#define CONST64U(x) x##ULL
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#ifndef MBYTES_SHIFT
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#define MBYTES_SHIFT 20
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#endif
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#ifndef MBYTES_2_BYTES
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#define MBYTES_2_BYTES(_nbytes) ((uint64)(_nbytes) << MBYTES_SHIFT)
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#endif
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/*
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* MKS Guest Stats types
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*/
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typedef struct MKSGuestStatCounter {
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atomic64_t count;
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} MKSGuestStatCounter;
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typedef struct MKSGuestStatCounterTime {
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MKSGuestStatCounter counter;
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atomic64_t selfCycles;
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atomic64_t totalCycles;
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} MKSGuestStatCounterTime;
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/*
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* Flags for MKSGuestStatInfoEntry::flags below
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*/
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#define MKS_GUEST_STAT_FLAG_NONE 0
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#define MKS_GUEST_STAT_FLAG_TIME (1U << 0)
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typedef __attribute__((aligned(32))) struct MKSGuestStatInfoEntry {
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union {
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const char *s;
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uint64 u;
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} name;
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union {
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const char *s;
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uint64 u;
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} description;
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uint64 flags;
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union {
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MKSGuestStatCounter *counter;
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MKSGuestStatCounterTime *counterTime;
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uint64 u;
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} stat;
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} MKSGuestStatInfoEntry;
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#define INVALID_PPN64 ((PPN64)0x000fffffffffffffULL)
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#define MKS_GUEST_STAT_INSTANCE_DESC_LENGTH 1024
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#define MKS_GUEST_STAT_INSTANCE_MAX_STATS 4096
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#define MKS_GUEST_STAT_INSTANCE_MAX_STAT_PPNS \
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(PFN_UP(MKS_GUEST_STAT_INSTANCE_MAX_STATS * \
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sizeof(MKSGuestStatCounterTime)))
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#define MKS_GUEST_STAT_INSTANCE_MAX_INFO_PPNS \
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(PFN_UP(MKS_GUEST_STAT_INSTANCE_MAX_STATS * \
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sizeof(MKSGuestStatInfoEntry)))
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#define MKS_GUEST_STAT_AVERAGE_NAME_LENGTH 40
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#define MKS_GUEST_STAT_INSTANCE_MAX_STRS_PPNS \
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(PFN_UP(MKS_GUEST_STAT_INSTANCE_MAX_STATS * \
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MKS_GUEST_STAT_AVERAGE_NAME_LENGTH))
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/*
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* The MKSGuestStatInstanceDescriptor is used as main interface to
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* communicate guest stats back to the host code. The guest must
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* allocate an instance of this structure at the start of a page and
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* provide the physical address to the host. From there the host code
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* can walk this structure to find other (pinned) pages containing the
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* stats data.
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*
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* Since the MKSGuestStatInfoEntry structures contain userlevel
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* pointers, the InstanceDescriptor also contains pointers to the
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* beginning of these sections allowing the host side code to correctly
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* interpret the pointers.
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*
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* Because the host side code never acknowledges anything back to the
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* guest there is no strict requirement to maintain compatability
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* across releases. If the interface changes the host might not be
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* able to log stats, but the guest will continue to run normally.
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*/
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typedef struct MKSGuestStatInstanceDescriptor {
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uint64 reservedMBZ; /* must be zero for now. */
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uint64 statStartVA; /* VA of the start of the stats section. */
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uint64 strsStartVA; /* VA of the start of the strings section. */
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uint64 statLength; /* length of the stats section in bytes. */
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uint64 infoLength; /* length of the info entry section in bytes. */
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uint64 strsLength; /* length of the strings section in bytes. */
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PPN64 statPPNs[MKS_GUEST_STAT_INSTANCE_MAX_STAT_PPNS]; /* stat counters */
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PPN64 infoPPNs[MKS_GUEST_STAT_INSTANCE_MAX_INFO_PPNS]; /* stat info */
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PPN64 strsPPNs[MKS_GUEST_STAT_INSTANCE_MAX_STRS_PPNS]; /* strings */
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char description[MKS_GUEST_STAT_INSTANCE_DESC_LENGTH];
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} MKSGuestStatInstanceDescriptor;
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#endif
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