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author | David Matlack <dmatlack@google.com> | 2021-09-24 12:05:26 +0300 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-10-01 10:44:53 +0300 |
commit | e710c5f6be0eb36f8f2e98efbc02f1b31021c29d (patch) | |
tree | 73f624c5ff275ba2a777cf7f7723e93d292d933a /arch/x86/kvm/svm | |
parent | 6ccf44388206e60bd0ba46d00f8570a0588d812e (diff) | |
download | linux-e710c5f6be0eb36f8f2e98efbc02f1b31021c29d.tar.xz |
KVM: x86/mmu: Pass the memslot around via struct kvm_page_fault
The memslot for the faulting gfn is used throughout the page fault
handling code, so capture it in kvm_page_fault as soon as we know the
gfn and use it in the page fault handling code that has direct access
to the kvm_page_fault struct. Replace various tests using is_noslot_pfn
with more direct tests on fault->slot being NULL.
This, in combination with the subsequent patch, improves "Populate
memory time" in dirty_log_perf_test by 5% when using the legacy MMU.
There is no discerable improvement to the performance of the TDP MMU.
No functional change intended.
Suggested-by: Ben Gardon <bgardon@google.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210813203504.2742757-4-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm')
0 files changed, 0 insertions, 0 deletions