KVM: x86: Check kvm_rebooting in kvm_spurious_fault()

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Explicitly check kvm_rebooting in kvm_spurious_fault() prior to invoking
BUG(), as opposed to assuming the caller has already done so.  Letting
kvm_spurious_fault() be called "directly" will allow VMX to better
optimize its low level assembly flows.

As a happy side effect, kvm_spurious_fault() no longer needs to be
marked as a dead end since it doesn't unconditionally BUG().

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2019-07-19 13:41:06 -07:00 • committed by Paolo Bonzini

parent 90a48843a1

commit 4b526de50e

3 changed files with 3 additions and 3 deletions

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2

arch/x86/include/asm/kvm_host.h

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3

arch/x86/kvm/x86.c

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1

tools/objtool/check.c

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