KVM: x86/mmu: Add shadow mask for effective host MTRR memtype

Browse source

Add shadow_memtype_mask to capture that EPT needs a non-zero memtype mask
instead of relying on TDP being enabled, as NPT doesn't need a non-zero
mask.  This is a glorified nop as kvm_x86_ops.get_mt_mask() returns zero
for NPT anyways.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220715230016.3762909-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

This commit is contained in:

Sean Christopherson 2022-07-15 23:00:15 +00:00 • committed by Paolo Bonzini

parent 82ffad2ddf

commit 38bf9d7bf2

2 changed files with 19 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

arch/x86/kvm/mmu/spte.c

View file

1

arch/x86/kvm/mmu/spte.h

View file