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authorSean Christopherson <sean.j.christopherson@intel.com>2020-09-24 01:04:23 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2020-09-28 14:57:36 +0300
commit83a2ba4cb2b596e5e89faa4e29b1d1f3b245b95e (patch)
tree3820270e129098cd209844a5fc5b08a1b2f7548d /arch
parent7b367bc9a6415dc6f31135d50ab37e8ee18d6974 (diff)
downloadlinux-83a2ba4cb2b596e5e89faa4e29b1d1f3b245b95e.tar.xz
KVM: x86/mmu: Invert RET_PF_* check when falling through to emulation
Explicitly check for RET_PF_EMULATE instead of implicitly doing the same by checking for !RET_PF_RETRY (RET_PF_INVALID is handled earlier). This will adding new RET_PF_ types in future patches without breaking the emulation path. No functional change intended. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Message-Id: <20200923220425.18402-3-sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/mmu/mmu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 68c0a1a374cf..0831e88fb227 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5466,10 +5466,10 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u64 error_code,
return -EIO;
}
- if (r == RET_PF_RETRY)
- return 1;
if (r < 0)
return r;
+ if (r != RET_PF_EMULATE)
+ return 1;
/*
* Before emulating the instruction, check if the error code