KVM: x86/mmu: Add common helper to handle prefetching SPTEs

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Deduplicate the prefetching code for indirect and direct MMUs.  The core
logic is the same, the only difference is that indirect MMUs need to
prefetch SPTEs one-at-a-time, as contiguous guest virtual addresses aren't
guaranteed to yield contiguous guest physical addresses.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241010182427.1434605-40-seanjc@google.com>

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Sean Christopherson 2024-10-10 11:23:41 -07:00 • committed by Paolo Bonzini

parent 64d5cd99f7

commit fa8fe58d1e

2 changed files with 26 additions and 27 deletions

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40

arch/x86/kvm/mmu/mmu.c

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13

arch/x86/kvm/mmu/paging_tmpl.h

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