kvm: x86: Read PDPTEs on CR0.CD and CR0.NW changes

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According to the SDM, when PAE paging would be in use following a
MOV-to-CR0 that modifies any of CR0.CD, CR0.NW, or CR0.PG, then the
PDPTEs are loaded from the address in CR3. Previously, kvm only loaded
the PDPTEs when PAE paging would be in use following a MOV-to-CR0 that
modified CR0.PG.

Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Message-Id: <20200707223630.336700-1-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Jim Mattson 2020-07-07 15:36:30 -07:00 • committed by Paolo Bonzini

parent 9a3c05e658

commit d42e3fae6f

1 changed files with 5 additions and 4 deletions

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arch/x86/kvm/x86.c

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