KVM: x86/mmu: shuffle high bits of SPTEs in preparation for MBEC

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Access tracking will need to save bit 10 when MBEC is enabled.
Right now it is simply shifting the R and X bits into bits 54 and 56,
but bit 10 would not fit with the same scheme.  Reorganize the
high bits so that access tracking will use bits 52, 54 and 62.
As a side effect, the free bits are compacted slightly, with
56-59 still unused.

Tested-by: David Riley <d.riley@proxmox.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Paolo Bonzini 2026-04-08 11:41:54 -04:00

parent 9a67ab7402

commit be4e45f360

1 changed files with 15 additions and 5 deletions

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arch/x86/kvm/mmu/spte.h

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