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authorSean Christopherson <seanjc@google.com>2021-07-13 09:33:00 -0700
committerPaolo Bonzini <pbonzini@redhat.com>2021-08-02 11:01:53 -0400
commit4f0dcb544038e016277fb691f1e60d52d7448cf6 (patch)
tree92f22f6365a393e924cb7f04d0ecb05305c78fef /tools/perf/scripts/python/export-to-postgresql.py
parentee5a5584cba316bc90bc2fad0c6d10b71f1791cb (diff)
KVM: VMX: Remove direct write to vcpu->arch.cr0 during vCPU RESET/INIT
Remove a bogus write to vcpu->arch.cr0 that immediately precedes vmx_set_cr0() during vCPU RESET/INIT. For RESET, this is a nop since the "old" CR0 value is meaningless. But for INIT, if the vCPU is coming from paging enabled mode, crushing vcpu->arch.cr0 will cause the various is_paging() checks in vmx_set_cr0() to get false negatives. For the exit_lmode() case, the false negative is benign as vmx_set_efer() is called immediately after vmx_set_cr0(). For EPT without unrestricted guest, the false negative will cause KVM to unnecessarily run with CR3 load/store exiting. But again, this is benign, albeit sub-optimal. Reviewed-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210713163324.627647-23-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
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