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(parent: ca2f546) | patch
KVM: nVMX: Don't speculatively write APIC-access page address
authorSean Christopherson <sean.j.christopherson@intel.com>
Tue, 7 May 2019 16:06:34 +0000 (09:06 -0700)
committerPaolo Bonzini <pbonzini@redhat.com>
Tue, 18 Jun 2019 09:47:35 +0000 (11:47 +0200)
commita49700b66e3523947f0e19c761891cc7c510d9fb
treed97f52bd51508683f470c1c1787852e5d3b94774tree | snapshot
parentca2f5466f854184f1753ecb526f0e21a353a25e7commit | diff
KVM: nVMX: Don't speculatively write APIC-access page address

If nested_get_vmcs12_pages() fails to map L1's APIC_ACCESS_ADDR into
L2, then it disables SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES in vmcs02.
In other words, the APIC_ACCESS_ADDR in vmcs02 is guaranteed to be
written with the correct value before being consumed by hardware, drop
the unneessary VMWRITE.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/vmx/nested.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git