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authorLiran Alon <liran.alon@oracle.com>2017-11-05 17:56:34 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2017-11-17 15:20:12 +0300
commit9b8ae63798cb97e785a667ff27e43fa6220cb734 (patch)
treee5732370f46844671ffe7644b5ae342e6de98480 /lib/syscall.c
parent1f4dcb3b213235e642088709a1c54964d23365e9 (diff)
downloadlinux-9b8ae63798cb97e785a667ff27e43fa6220cb734.tar.xz
KVM: x86: Don't re-execute instruction when not passing CR2 value
In case of instruction-decode failure or emulation failure, x86_emulate_instruction() will call reexecute_instruction() which will attempt to use the cr2 value passed to x86_emulate_instruction(). However, when x86_emulate_instruction() is called from emulate_instruction(), cr2 is not passed (passed as 0) and therefore it doesn't make sense to execute reexecute_instruction() logic at all. Fixes: 51d8b66199e9 ("KVM: cleanup emulate_instruction") Signed-off-by: Liran Alon <liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by: Wanpeng Li <wanpeng.li@hotmail.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
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