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| author | Sean Christopherson <[email protected]> | 2023-07-29 00:51:56 +0000 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2023-08-31 18:08:20 +0000 |
| commit | c5f2d5645f9b7c12c9546ced9ec1f1a558870747 (patch) | |
| tree | 747b268321df2a35d528759a9f30d741f710c89b /tools/perf/scripts/python/futex-contention.py | |
| parent | drm/i915/gvt: Drop final dependencies on KVM internal details (diff) | |
| download | kernel-c5f2d5645f9b7c12c9546ced9ec1f1a558870747.tar.gz kernel-c5f2d5645f9b7c12c9546ced9ec1f1a558870747.zip | |
KVM: x86/mmu: Add helper to convert root hpa to shadow page
Add a dedicated helper for converting a root hpa to a shadow page in
anticipation of using a "dummy" root to handle the scenario where KVM
needs to load a valid shadow root (from hardware's perspective), but
the guest doesn't have a visible root to shadow. Similar to PAE roots,
the dummy root won't have an associated kvm_mmu_page and will need special
handling when finding a shadow page given a root.
Opportunistically retrieve the root shadow page in kvm_mmu_sync_roots()
*after* verifying the root is unsync (the dummy root can never be unsync).
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sean Christopherson <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/futex-contention.py')
0 files changed, 0 insertions, 0 deletions