linux

iv/linux

History

Christian Borntraeger 1526bf9ccf KVM: s390: add capability indicating COW support

Currently qemu/kvm on s390 uses a guest mapping that does not
allow the guest backing page table to be write-protected to
support older systems. On those older systems a host write
protection fault will be delivered to the guest.

Newer systems allow to write-protect the guest backing memory
and let the fault be delivered to the host, thus allowing COW.

Use a capability bit to tell qemu if that is possible.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

2012-05-17 21:06:01 -03:00

airq.h

…

appldata.h

…

asm-offsets.h

kbuild: move asm-offsets.h to include/generated

2009-12-12 13:08:14 +01:00

atomic.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

auxvec.h

[S390] introduce vdso on s390

2008-12-25 13:38:55 +01:00

barrier.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

bitops.h

asm-generic: add another generic ext2 atomic bitops

2011-07-26 16:49:46 -07:00

bitsperlong.h

asm-generic: introduce asm/bitsperlong.h

2009-06-11 21:02:14 +02:00

bug.h

panic: Allow warnings to set different taint flags

2010-05-19 08:36:48 +01:00

bugs.h

…

byteorder.h

byteorder: make swab.h include asm/swab.h like a regular header

2009-01-14 19:56:50 -08:00

cache.h

[S390] net: provide architecture specific NET_SKB_PAD

2011-02-17 13:13:59 +01:00

cacheflush.h

module: undo module RONX protection correctly.

2011-05-19 16:55:26 +09:30

ccwdev.h

[S390] fix mismatch in summation of I/O IRQ statistics

2011-10-30 15:16:15 +01:00

ccwgroup.h

[S390] ccwgroup_driver: remove duplicate members

2011-03-23 10:15:59 +01:00

checksum.h

[S390] convert/optimize csum_fold() to C

2009-09-11 10:29:43 +02:00

chpid.h

UAPI: Alter the S390 asm include guards to be recognisable by the UAPI splitter

2011-12-13 09:26:45 +00:00

chsc.h

[S390] cio: move scsw helper functions to header file

2009-09-11 10:29:36 +02:00

cio.h

Fix common misspellings

2011-03-31 11:26:23 -03:00

cmb.h

[S390] types: add/fix types.h include in header files

2009-01-09 12:15:06 +01:00

cmpxchg.h

[S390] percpu: implement arch specific irqsafe_cpu_ops

2011-05-23 10:24:29 +02:00

compat.h

compat: fix compile breakage on s390

2012-02-27 07:54:27 -08:00

cpcmd.h

…

cpu_mf.h

[S390] Fix build errors (fallout from system.h disintegration)

2012-03-30 09:41:12 +02:00

cpu.h

[S390] correct alignment of cpuid structure

2010-10-25 16:10:19 +02:00

cputime.h

[S390] rework idle code

2012-03-11 11:59:28 -04:00

crw.h

[S390] cio: wait for channel report

2010-02-26 22:37:29 +01:00

ctl_reg.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

current.h

…

dasd.h

[S390] dasd: Add support for raw ECKD access.

2011-01-05 12:47:30 +01:00

debug.h

[S390] kernel: Add z/VM LGR detection

2012-03-11 11:59:29 -04:00

delay.h

[S390] delay: implement ndelay

2011-05-26 09:48:25 +02:00

device.h

…

diag.h

[S390] replace diag10() with diag10_range() function

2011-05-10 17:13:43 +02:00

div64.h

…

dma.h

…

ebcdic.h

…

elf.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

emergency-restart.h

…

errno.h

…

etr.h

[S390] use inline assembly contraints available with gcc 3.3.3

2010-02-26 22:37:30 +01:00

exec.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

extmem.h

…

facility.h

[S390] Fix stfle() lowcore protection problem

2012-04-11 14:28:26 +02:00

fb.h

…

fcntl.h

…

fcx.h

[S390] cio: update sac values

2008-12-25 13:39:06 +01:00

ftrace.h

ftrace/s390: mcount offset calculation

2011-05-16 15:05:06 -04:00

futex.h

futex: Sanitize futex ops argument types

2011-03-11 12:23:31 +01:00

hardirq.h

[S390] irq: set __ARCH_IRQ_EXIT_IRQS_DISABLED

2012-03-11 11:59:28 -04:00

hugetlb.h

[S390] Remove data execution protection

2011-05-23 10:24:28 +02:00

idals.h

[S390] dasd: add High Performance FICON support

2009-03-26 15:24:05 +01:00

io.h

…

ioctl.h

…

ioctls.h

ioctl: Use asm-generic/ioctls.h on s390 (enables termiox)

2010-10-22 10:20:01 -07:00

ipcbuf.h

…

ipl.h

[S390] kernel: Add z/VM LGR detection

2012-03-11 11:59:29 -04:00

irq_regs.h

…

irq.h

[S390] oprofile: Allow multiple users of the measurement alert interrupt

2012-03-23 11:13:24 +01:00

irqflags.h

[S390] irqs: Do not trace arch_local_{*,irq_*} functions

2011-07-24 10:48:00 +02:00

isc.h

[S390] zcrypt: Use of Thin Interrupts

2008-12-25 13:38:57 +01:00

itcw.h

UAPI: Alter the S390 asm include guards to be recognisable by the UAPI splitter

2011-12-13 09:26:45 +00:00

jump_label.h

static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]()

2012-02-24 10:05:59 +01:00

Kbuild

KVM: S390: Export kvm_virtio.h

2010-10-24 10:51:30 +02:00

kdebug.h

[S390] cleanup trap handling

2011-12-27 11:27:12 +01:00

kexec.h

kdump: define KEXEC_NOTE_BYTES arch specific for s390x

2012-01-23 08:38:48 -08:00

kmap_types.h

kmap_types: make most arches use generic header file

2009-06-16 19:47:51 -07:00

kprobes.h

[S390] kprobes: jprobe save and restore

2011-01-05 12:47:24 +01:00

kvm_host.h

KVM: s390: Implement the directed yield (diag 9c) hypervisor call for KVM

2012-04-30 21:38:31 -03:00

kvm_para.h

kvmclock: Add functions to check if the host has stopped the vm

2012-04-08 12:48:59 +03:00

kvm_virtio.h

KVM: S390: Add virtio hotplug add support

2010-10-24 10:51:29 +02:00

kvm.h

KVM: s390: provide control registers via kvm_run

2012-03-08 14:10:18 +02:00

linkage.h

[S390] fix s390 assembler code alignments

2011-07-24 10:48:21 +02:00

local64.h

arch: Implement local64_t

2010-06-09 11:12:36 +02:00

local.h

…

lowcore.h

[S390] Ensure that vmcore_info pointer is never accessed directly

2012-03-11 11:59:30 -04:00

mathemu.h

…

mman.h

UAPI: Split trivial #if defined(__KERNEL__) && X conditionals

2011-12-13 15:07:49 +00:00

mmu_context.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

mmu.h

[S390] Fix build errors (fallout from system.h disintegration)

2012-03-30 09:41:12 +02:00

module.h

…

monwriter.h

…

msgbuf.h

…

mutex.h

[S390] mutex: Introduce arch_mutex_cpu_relax()

2011-01-05 12:47:31 +01:00

nmi.h

[S390] split/move machine check handler code

2009-03-26 15:24:10 +01:00

os_info.h

[S390] kernel: Add OS info memory interface

2012-03-11 11:59:29 -04:00

page.h

[S390] sparse: fix sparse warnings about missing prototypes

2011-10-30 15:16:46 +01:00

param.h

[S390] Have param.h simply include <asm-generic/param.h>.

2010-01-04 09:05:58 +01:00

pci.h

…

percpu.h

percpu: Remove irqsafe_cpu_xxx variants

2011-12-22 10:40:20 -08:00

perf_event.h

[S390] perf: add support for s390x CPU counters

2012-03-23 11:13:25 +01:00

pgalloc.h

[S390] fix tlb flushing for page table pages

2012-04-11 14:28:24 +02:00

pgtable.h

[S390] add support for physical memory > 4TB

2011-12-27 11:27:10 +01:00

poll.h

…

posix_types.h

s390: Use generic posix_types.h

2012-02-14 12:01:29 -08:00

processor.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

ptrace.h

Audit: push audit success and retcode into arch ptrace.h

2012-01-17 16:16:56 -05:00

qdio.h

[S390] qdio: fix kernel panic for zfcp 31-bit

2011-12-27 11:27:14 +01:00

qeth.h

qeth: add query OSA address table support

2012-02-08 18:50:20 -05:00

reset.h

[S390] kdump backend code

2011-10-30 15:16:42 +01:00

resource.h

…

rwsem.h

rwsem: Move duplicate function prototypes to linux/rwsem.h

2011-01-27 12:30:39 +01:00

scatterlist.h

[S390] set ARCH_HAS_SG_CHAIN for s390

2010-10-25 16:10:15 +02:00

schid.h

[S390] types: add/fix types.h include in header files

2009-01-09 12:15:06 +01:00

sclp.h

KVM: s390: add capability indicating COW support

2012-05-17 21:06:01 -03:00

scsw.h

[S390] cio: move scsw helper functions to header file

2009-09-11 10:29:36 +02:00

seccomp.h

[S390] secure computing arch backend

2009-06-12 10:27:31 +02:00

sections.h

…

segment.h

…

sembuf.h

…

setup.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

sfp-machine.h

…

sfp-util.h

[S390] sparse: fix sparse warnings in math-emu

2011-10-30 15:16:46 +01:00

shmbuf.h

…

shmparam.h

…

sigcontext.h

…

siginfo.h

…

signal.h

asm-generic: rename termios.h, signal.h and mman.h

2009-06-11 21:01:52 +02:00

smp.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

socket.h

net: Add framework to allow sending packets with customized CRC.

2012-02-24 01:37:35 -08:00

sockios.h

[S390] use generic sockios.h header file

2009-12-07 12:51:37 +01:00

sparsemem.h

[S390] add support for physical memory > 4TB

2011-12-27 11:27:10 +01:00

spinlock_types.h

locking: Convert raw_rwlock to arch_rwlock

2009-12-14 23:55:32 +01:00

spinlock.h

[S390] sparse: fix sparse warnings about missing prototypes

2011-10-30 15:16:46 +01:00

stat.h

…

statfs.h

add f_flags to struct statfs(64)

2010-08-09 16:48:44 -04:00

string.h

[S390] use compiler builtin versions of strlen/strcpy/strcat

2009-03-26 15:24:24 +01:00

swab.h

[S390] Fix compile error in swab.h

2012-04-11 14:28:26 +02:00

switch_to.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

syscall.h

[S390] cleanup trap handling

2011-12-27 11:27:12 +01:00

sysinfo.h

[S390] topology: move topology sysinfo code

2010-10-25 16:10:21 +02:00

tape390.h

…

termbits.h

[S390] use generic termbits.h header file

2009-12-07 12:51:37 +01:00

termios.h

asm-generic: rename termios.h, signal.h and mman.h

2009-06-11 21:01:52 +02:00

thread_info.h

freezer: remove now unused TIF_FREEZE

2011-11-21 12:32:25 -08:00

timer.h

[S390] rework idle code

2012-03-11 11:59:28 -04:00

timex.h

[S390] avoid STCKF if running in ESA mode

2011-11-14 11:19:09 +01:00

tlb.h

[S390] fix tlb flushing for page table pages

2012-04-11 14:28:24 +02:00

tlbflush.h

[S390] add missing __tlb_flush_global() for !CONFIG_SMP

2011-10-30 15:16:47 +01:00

topology.h

[S390] topology: increase poll frequency if change is anticipated

2011-12-27 11:27:12 +01:00

types.h

consolidate umode_t declarations

2012-01-03 22:55:17 -05:00

uaccess.h

Disintegrate asm/system.h for S390

2012-03-28 18:30:02 +01:00

ucontext.h

[S390] 64-bit register support for 31-bit processes

2009-10-06 10:35:10 +02:00

unaligned.h

…

unistd.h

[S390] ipc: call generic sys_ipc demultiplexer

2011-12-27 11:27:13 +01:00

user.h

…

vdso.h

[S390] rework smp code

2012-03-11 11:59:28 -04:00

vtoc.h

[S390] dasd: add large volume support

2009-03-26 15:24:05 +01:00

xor.h

…

zcrypt.h

…