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8e3d9d061b
linux/arch/x86
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Xiao Guangrong 8e3d9d061b KVM: x86: fix possible infinite loop caused by reexecute_instruction 
Currently, we reexecute all unhandleable instructions if they do not
access on the mmio, however, it can not work if host map the readonly
memory to guest. If the instruction try to write this kind of memory,
it will fault again when guest retry it, then we will goto a infinite
loop: retry instruction -> write #PF -> emulation fail ->
retry instruction -> ...

Fix it by retrying the instruction only when it faults on the writable
memory

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-08-22 15:08:49 +03:00
..
boot Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-07-26 13:13:25 -07:00
configs x86/kconfig: Remove CONFIG_TR=y from the defconfigs 2012-03-24 08:18:03 +01:00
crypto crypto: twofish-avx - remove useless instruction 2012-07-11 11:08:30 +08:00
ia32 x86, compat: Use test_thread_flag(TIF_IA32) in compat signal delivery 2012-06-14 18:16:04 -07:00
include/asm KVM: Correct vmrun to vmcall typo 2012-08-13 17:39:59 -03:00
kernel KVM guest: disable stealtime on reboot to avoid mem corruption 2012-08-15 15:31:24 -03:00
kvm KVM: x86: fix possible infinite loop caused by reexecute_instruction 2012-08-22 15:08:49 +03:00
lguest
lib Merge branch 'x86/cpu' into perf/core 2012-07-05 21:12:11 +02:00
math-emu x86: Rename trap_no to trap_nr in thread_struct 2012-03-13 06:24:09 +01:00
mm ACPI: Only count valid srat memory structures 2012-08-03 00:15:53 -04:00
net x86 bpf_jit: support BPF_S_ANC_ALU_XOR_X instruction 2012-06-06 09:42:44 -07:00
oprofile perf/x86/amd: Unify AMD's generic and family 15h pmus 2012-07-05 21:19:41 +02:00
pci Merge branch 'pci/myron-pcibios_setup' into next 2012-07-05 15:31:05 -06:00
platform x86: OLPC: move s/r-related EC cmds to EC driver 2012-07-31 23:27:31 -04:00
power x86, kvm: Call restore_sched_clock_state() only after %gs is initialized 2012-04-02 13:53:00 +02:00
realmode x86-64, reboot: Be more paranoid in 64-bit reboot=bios 2012-06-21 10:25:03 -07:00
syscalls x86-64, kcmp: The kcmp system call can be common 2012-08-01 16:01:06 -07:00
tools x86/decoder: Fix bsr/bsf/jmpe decoding with operand-size prefix 2012-06-06 08:54:18 +02:00
um um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs 2012-08-01 23:33:16 +02:00
vdso x86, cpu: Rename checking_wrmsrl() to wrmsrl_safe() 2012-06-07 13:32:04 -07:00
video x86: Use vga_default_device() when determining whether an fb is primary 2012-04-24 09:50:17 +01:00
xen Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-07-26 13:17:17 -07:00
.gitignore
Kbuild x86, realmode: realmode.bin infrastructure 2012-05-08 11:41:48 -07:00
Kconfig Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-08-03 10:59:36 -07:00
Kconfig.cpu
Kconfig.debug x86/tlb: add tlb_flushall_shift knob into debugfs 2012-06-27 19:29:10 -07:00
Makefile x86-64, gcc: Use -mpreferred-stack-boundary=3 if supported 2012-06-23 19:25:22 -07:00
Makefile_32.cpu
Makefile.um um: fix linker script generation 2012-04-09 13:59:00 -04:00