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authorSean Christopherson <sean.j.christopherson@intel.com>2019-07-19 13:41:10 -0700
committerPaolo Bonzini <pbonzini@redhat.com>2019-09-25 15:30:19 +0200
commitf209a26dd5a5038c53097b5c38e313b8cd042adb (patch)
treed35fa98d158cbd10fc73ad5114039d3a5217de85 /arch
parent98cd382d509061a9c6ae4cac38ff0721be05adef (diff)
downloadlinux-f209a26dd5a5038c53097b5c38e313b8cd042adb.tar.gz
KVM: x86: Don't check kvm_rebooting in __kvm_handle_fault_on_reboot()
Remove the kvm_rebooting check from VMX/SVM instruction exception fixup now that kvm_spurious_fault() conditions its BUG() on !kvm_rebooting. Because the 'cleanup_insn' functionally is also gone, deferring to kvm_spurious_fault() means __kvm_handle_fault_on_reboot() can eliminate its .fixup code entirely and have its exception table entry branch directly to the call to kvm_spurious_fault(). Cc: 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>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/kvm_host.h8
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 202f4d4a892a..23edf56cf577 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1549,13 +1549,7 @@ asmlinkage void kvm_spurious_fault(void);
"667: \n\t" \
"call kvm_spurious_fault \n\t" \
"668: \n\t" \
- ".pushsection .fixup, \"ax\" \n\t" \
- "700: \n\t" \
- "cmpb $0, kvm_rebooting\n\t" \
- "je 667b \n\t" \
- "jmp 668b \n\t" \
- ".popsection \n\t" \
- _ASM_EXTABLE(666b, 700b)
+ _ASM_EXTABLE(666b, 667b)
#define KVM_ARCH_WANT_MMU_NOTIFIER
int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end);