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authorSean Christopherson <seanjc@google.com>2022-07-11 22:57:53 +0000
committerSean Christopherson <seanjc@google.com>2022-07-13 18:14:05 -0700
commit43bb9e000ea4c62154c01844771fea25b8b83520 (patch)
treefd47e7a827c627d90d41850964b2708a2554ca9d /arch/x86/include/asm/kvm_host.h
parent14fd95bf145ddb8201406b89c83faf24e7e3d52f (diff)
downloadlinux-43bb9e000ea4c62154c01844771fea25b8b83520.tar.bz2
KVM: x86: Tweak name of MONITOR/MWAIT #UD quirk to make it #UD specific
Add a "UD" clause to KVM_X86_QUIRK_MWAIT_NEVER_FAULTS to make it clear that the quirk only controls the #UD behavior of MONITOR/MWAIT. KVM doesn't currently enforce fault checks when MONITOR/MWAIT are supported, but that could change in the future. SVM also has a virtualization hole in that it checks all faults before intercepts, and so "never faults" is already a lie when running on SVM. Fixes: bfbcc81bb82c ("KVM: x86: Add a quirk for KVM's "MONITOR/MWAIT are NOPs!" behavior") Signed-off-by: Sean Christopherson <seanjc@google.com> Link: https://lore.kernel.org/r/20220711225753.1073989-4-seanjc@google.com
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
-rw-r--r--arch/x86/include/asm/kvm_host.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index dd6a26f7d46c..d4ece7bf2124 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -2096,6 +2096,6 @@ int memslot_rmap_alloc(struct kvm_memory_slot *slot, unsigned long npages);
KVM_X86_QUIRK_OUT_7E_INC_RIP | \
KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT | \
KVM_X86_QUIRK_FIX_HYPERCALL_INSN | \
- KVM_X86_QUIRK_MWAIT_NEVER_FAULTS)
+ KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS)
#endif /* _ASM_X86_KVM_HOST_H */