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linux-stable/arch/s390/include/asm
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David Hildenbrand a3508fbe9d KVM: s390: vsie: initial support for nested virtualization 
This patch adds basic support for nested virtualization on s390x, called
VSIE (virtual SIE) and allows it to be used by the guest if the necessary
facilities are supported by the hardware and enabled for the guest.

In order to make this work, we have to shadow the sie control block
provided by guest 2. In order to gain some performance, we have to
reuse the same shadow blocks as good as possible. For now, we allow
as many shadow blocks as we have VCPUs (that way, every VCPU can run the
VSIE concurrently).

We have to watch out for the prefix getting unmapped out of our shadow
gmap and properly get the VCPU out of VSIE in that case, to fault the
prefix pages back in. We use the PROG_REQUEST bit for that purpose.

This patch is based on an initial prototype by Tobias Elpelt.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2016-06-21 09:43:33 +02:00
..
fpu s390/fpu: allocate 'struct fpu' with the task_struct 2016-04-21 09:51:15 +02:00
trace s390/diag: add a s390 prefix to the diagnose trace point 2015-11-09 09:10:47 +01:00
airq.h s390/airq: add support for irq ranges 2014-03-04 10:41:04 +01:00
appldata.h s390/diag: add a statistic for diagnose calls 2015-10-14 14:32:06 +02:00
asm-offsets.h
atomic.h s390/barrier: remove unnecessary serialization in atomics and bitops 2015-10-14 14:32:07 +02:00
barrier.h s390: more efficient smp barriers 2016-01-12 20:47:05 +02:00
bitops.h s390/bitops: remove 31 bit related comments 2015-10-14 14:32:15 +02:00
bug.h
bugs.h
cache.h s390: disable postinit-readonly for now 2016-03-17 13:18:25 +01:00
cacheflush.h mm/debug_pagealloc: fix build failure on ppc and some other archs 2015-02-05 13:35:30 -08:00
ccwdev.h s390/cio: fix multiple structure definitions 2014-05-20 08:58:53 +02:00
ccwgroup.h s390: fix new ccwgroup.h kernel-doc warning 2014-05-20 08:58:45 +02:00
checksum.h ipv4: Update parameters for csum_tcpudp_magic to their original types 2016-03-13 23:55:13 -04:00
chpid.h s390/cio: fix multiple structure definitions 2014-05-20 08:58:53 +02:00
cio.h s390: add support for ipl devices in subchannel sets > 0 2015-11-11 13:56:27 +01:00
clp.h s390/pci: add ioctl interface for CLP 2016-03-07 16:54:32 +01:00
cmb.h s390/cio: use device_lock during cmb activation 2015-10-14 14:32:02 +02:00
cmpxchg.h s390/cmpxchg: remove dead code 2015-10-14 14:32:15 +02:00
compat.h s390: remove is_32bit_task() helper 2015-11-27 09:24:17 +01:00
cpacf.h s390/crypto: allow to query all known cpacf functions 2016-06-10 12:07:16 +02:00
cpcmd.h
cpu.h s390/smp: cleanup core vs. cpu in the SCLP interface 2015-06-25 09:39:24 +02:00
cpu_mf.h s390: remove runtime instrumentation interrupts 2015-11-03 14:40:51 +01:00
cpufeature.h s390/module: enable generic CPU feature modalias using s390 ELF hwcaps 2015-07-22 09:58:02 +02:00
cputime.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
crw.h s390/cio: Consolidate inline assemblies and related data definitions 2015-12-18 14:59:34 +01:00
css_chars.h s390/qdio: bridgeport support - CHSC part 2014-01-15 14:48:01 -08:00
ctl_reg.h s390/fpu: always enable the vector facility if it is available 2015-10-14 14:32:08 +02:00
current.h
debug.h s390/debug: avoid function call for debug_sprintf_* 2014-12-08 09:42:29 +01:00
delay.h
device.h s390/dma: Allow per device dma ops 2016-03-02 17:01:56 +02:00
diag.h KVM: s390: Add sthyi emulation 2016-06-10 12:07:12 +02:00
dis.h s390/disassembler: add vector instructions 2014-10-09 09:14:15 +02:00
div64.h
dma-mapping.h s390/dma: Allow per device dma ops 2016-03-02 17:01:56 +02:00
dma.h
eadm.h s390/scm_block: do not hide eadm subchannel dependency 2013-11-15 14:08:42 +01:00
ebcdic.h
elf.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2016-01-13 13:16:16 -08:00
emergency-restart.h
etr.h s390/etr,stp: fix possible deadlock on machine check 2015-10-14 14:32:18 +02:00
exec.h
extmem.h
facilities_src.h s390/facilities: add z13 als bit 2015-12-18 14:59:24 +01:00
facility.h s390/facilities: optimize test_facility() 2015-12-18 14:59:23 +01:00
fb.h
fcx.h s390/cio: fix error-prone defines 2013-10-24 17:17:04 +02:00
ftrace.h s390/dumpstack: implement and use return_address() 2016-05-04 16:29:45 +02:00
futex.h s390/uaccess: simplify control register updates 2014-05-20 08:58:46 +02:00
gmap.h KVM: s390: backup the currently enabled gmap when scheduled out 2016-06-20 09:55:24 +02:00
hardirq.h hardirq: Make hardirq bits generic 2013-11-13 20:21:46 +01:00
hugetlb.h s390/hugetlb: add hugepages_supported define 2015-07-17 16:39:52 -07:00
hw_irq.h
idals.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
idle.h s390/udelay: make udelay have busy loop semantics 2015-10-14 14:32:13 +02:00
io.h s390/io: Add pci_iomap_wc() and pci_iomap_wc_range() 2015-08-28 08:04:48 +02:00
ipl.h s390/dump: cleanup CPU save area handling 2015-11-27 09:24:14 +01:00
irq.h s390: remove runtime instrumentation interrupts 2015-11-03 14:40:51 +01:00
irq_regs.h
irqflags.h s390/irqflags: optimize irq restore 2016-01-19 12:14:01 +01:00
isc.h
itcw.h
jump_label.h locking/static_keys: Add a new static_key interface 2015-08-03 11:34:15 +02:00
Kbuild Merge branch 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2015-10-04 16:31:13 +01:00
kdebug.h
kexec.h kexec: allocate the kexec control page with KEXEC_CONTROL_MEMORY_GFP 2015-04-23 16:52:01 +02:00
kmap_types.h
kprobes.h s390/ftrace,kprobes: allow to patch first instruction 2014-10-27 13:27:27 +01:00
kvm_host.h KVM: s390: vsie: initial support for nested virtualization 2016-06-21 09:43:33 +02:00
kvm_para.h s390/diag: add a statistic for diagnose calls 2015-10-14 14:32:06 +02:00
linkage.h s390/kernel: move EX_TABLE macros to linkage.h header file 2015-07-22 09:57:59 +02:00
livepatch.h livepatch: reuse module loader code to write relocations 2016-04-01 15:00:11 +02:00
local.h
local64.h
lowcore.h s390: rename struct _lowcore to struct lowcore 2016-01-11 12:27:15 +01:00
mathemu.h
mman.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
mmu.h s390/mm: use RCU for gmap notifier list and the per-mm gmap list 2016-06-20 09:46:49 +02:00
mmu_context.h s390/mm: use RCU for gmap notifier list and the per-mm gmap list 2016-06-20 09:46:49 +02:00
mmzone.h s390/numa: add core infrastructure 2015-08-03 18:40:25 +02:00
module.h
mutex.h
nmi.h s390/nmi: remove casts 2015-10-27 09:33:55 +01:00
numa.h s390/numa: use correct type for node_to_cpumask_map 2015-09-23 09:18:56 +02:00
os_info.h s390/dump: streamline oldmem copy functions 2015-11-27 09:24:12 +01:00
page.h s390: introduce page_to_virt() and pfn_to_virt() 2016-06-20 09:55:32 +02:00
pci.h s390/pci: fmb enhancements 2016-04-15 18:16:40 +02:00
pci_clp.h s390/pci: add ioctl interface for CLP 2016-03-07 16:54:32 +01:00
pci_debug.h s390/pci: remove CONFIG_PCI_DEBUG dependancy 2013-10-24 17:17:16 +02:00
pci_dma.h s390/pci_dma: fix DMA table corruption with > 4 TB main memory 2015-11-27 09:24:15 +01:00
pci_insn.h s390/pci: cleanup function information block 2013-10-24 17:17:17 +02:00
pci_io.h s390/pci: improve ZPCI_* macros 2016-01-26 12:45:49 +01:00
percpu.h s390/percpu: remove this_cpu_cmpxchg_double_4 2016-03-02 06:44:30 -06:00
perf_event.h s390: Fix misspellings in comments 2016-03-08 15:00:17 +01:00
pgalloc.h s390/mm: add shadow gmap support 2016-06-20 09:54:04 +02:00
pgtable.h s390/mm: shadow pages with real guest requested protection 2016-06-20 09:54:19 +02:00
processor.h s390/mm: remember the int code for the last gmap fault 2016-06-20 09:55:08 +02:00
ptrace.h s390: remove all usages of PSW_ADDR_INSN 2016-01-19 12:14:03 +01:00
qdio.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
reset.h s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
runtime_instr.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
rwsem.h locking/rwsem, s390: Provide __down_write_killable() 2016-04-13 10:42:22 +02:00
schid.h
sclp.h s390/sclp: detect storage-key facility 2016-06-10 12:07:30 +02:00
scsw.h
seccomp.h s390/seccomp: include generic seccomp header file 2016-04-01 17:20:55 +02:00
sections.h
segment.h
serial.h
setup.h s390/fault: merge report_user_fault implementations 2016-03-02 06:44:27 -06:00
sfp-machine.h
sfp-util.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
shmparam.h
signal.h
sigp.h KVM: s390: enable SRS only if enabled for the guest 2016-05-09 13:33:55 +02:00
smp.h s390/dump: rework CPU register dump code 2015-11-27 09:24:14 +01:00
sparsemem.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
spinlock.h s390/spinlock: remove unneeded serializations at unlock 2015-10-14 14:32:25 +02:00
spinlock_types.h s390/rwlock: use directed yield for write-locked rwlocks 2014-09-25 10:52:05 +02:00
string.h lib/string.c: remove strnicmp() 2015-02-12 18:54:14 -08:00
switch_to.h s390/fpu: split fpu-internal.h into fpu internals, api, and type headers 2015-10-16 09:41:12 +02:00
syscall.h s390/syscalls: simplify syscall_get_arch() 2015-03-30 13:26:07 +02:00
sysinfo.h s390/sysinfo: add missing SYSIB 1.2.2 multithreading fields 2016-01-11 12:27:00 +01:00
termios.h
thread_info.h s390: add missing declarations 2016-05-10 13:24:51 +02:00
timex.h s390: time: Provide read_boot_clock64() and read_persistent_clock64() 2015-05-22 10:36:29 -07:00
tlb.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
tlbflush.h s390/mm: fix asce_bits handling with dynamic pagetable levels 2016-04-21 09:50:09 +02:00
topology.h s390: get rid of CONFIG_SCHED_MC and CONFIG_SCHED_BOOK 2015-12-30 10:34:57 +01:00
types.h s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
uaccess.h s390/extable: use generic search and sort routines 2016-03-22 15:36:02 -07:00
unaligned.h
unistd.h s390: wire up separate socketcalls system calls 2015-09-18 11:16:53 +02:00
uprobes.h s390/uprobes: architecture backend for uprobes 2014-09-25 10:52:17 +02:00
user.h
vdso.h s390/vdso: optimize getcpu system call 2016-01-11 13:01:24 +01:00
vga.h
vtime.h
vtimer.h s390/idle: consolidate idle functions and definitions 2014-10-09 09:14:03 +02:00
vx-insn.h s390/vx: add vector instruction support for older binutils versions 2015-07-22 09:58:01 +02:00
xor.h s390/xor: optimized xor routing using the XC instruction 2016-02-23 08:56:17 +01:00