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| author | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-20 08:37:37 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-28 11:46:18 -0400 |
| commit | df7e0681dd8acfa8d07816eaef232ded816d8a8c (patch) | |
| tree | a7cb8b16adbb4bac6adc80693933df18fbc57bbb /arch/x86/kvm/svm/svm.c | |
| parent | 978ce5837c7ed50e4ea30cc0fa20f2f820edf8ea (diff) | |
| download | lwn-df7e0681dd8acfa8d07816eaef232ded816d8a8c.tar.gz lwn-df7e0681dd8acfa8d07816eaef232ded816d8a8c.zip | |
KVM: nVMX: always update CR3 in VMCS
vmx_load_mmu_pgd is delaying the write of GUEST_CR3 to prepare_vmcs02 as
an optimization, but this is only correct before the nested vmentry.
If userspace is modifying CR3 with KVM_SET_SREGS after the VM has
already been put in guest mode, the value of CR3 will not be updated.
Remove the optimization, which almost never triggers anyway.
Fixes: 04f11ef45810 ("KVM: nVMX: Always write vmcs02.GUEST_CR3 during nested VM-Enter")
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm/svm.c')
0 files changed, 0 insertions, 0 deletions