KVM: x86/mmu: Expand quadrant comment for PG_LEVEL_4K shadow pages

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Tweak the comment above the computation of the quadrant for PG_LEVEL_4K
shadow pages to explicitly call out how and why KVM uses role.quadrant to
consume gPTE bits.

Opportunistically wrap an unnecessarily long line.

No functional change intended.

Link: https://lore.kernel.org/all/YqvWvBv27fYzOFdE@google.com
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220712020724.1262121-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2022-07-12 02:07:23 +00:00 • committed by Paolo Bonzini

parent 79e48cec6c

commit 39944ab99c

1 changed files with 11 additions and 4 deletions

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arch/x86/kvm/mmu/mmu.c

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