The x86 emulator of KVM is buggy. This series of patches includes fixes for various bugs which were detected. Each patch stands on its own. Two patches do not fix KVM emulation, but cause the emulator to fail more nicely by returning an unhandlable error, instead of performing wrong emulation (VEX-prefix and cmpxchg16b). The fix for rdpmc is a bit intrusive to keep SVM behavior intact. Thanks for reviewing the patches. Nadav Amit (9): KVM: x86: Mark VEX-prefix instructions emulation as unimplemented KVM: x86: Emulator ignores LDTR/TR extended base on LLDT/LTR KVM: x86: Loading segments on 64-bit mode may be wrong KVM: x86: sgdt and sidt are not privilaged KVM: x86: cmpxchg emulation should compare in reverse order KVM: x86: movnti minimum op size of 32-bit is not kept KVM: x86: rdpmc emulation checks the counter incorrectly KVM: x86: Return error on cmpxchg16b emulation KVM: x86: smsw emulation is incorrect in 64-bit mode arch/x86/include/asm/kvm_emulate.h | 1 + arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/emulate.c | 44 ++++++++++++++++++++++++++++---------- arch/x86/kvm/pmu.c | 9 ++++++++ arch/x86/kvm/x86.c | 7 ++++++ 5 files changed, 51 insertions(+), 11 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
