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| author | Paolo Bonzini <pbonzini@redhat.com> | 2025-06-10 20:10:18 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2025-06-12 00:43:39 -0400 |
| commit | aa2024c01a9afba6728b362626f868811ca872ee (patch) | |
| tree | b6f667cde3395a97721995715e73f8226e873b86 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 179a8427fcbffe36ccfed5e138d7c9b6180caff9 (diff) | |
KVM: x86/mmu: Embed direct bits into gpa for KVM_PRE_FAULT_MEMORY
Bug[*] reported for TDX case when enabling KVM_PRE_FAULT_MEMORY in QEMU.
It turns out that @gpa passed to kvm_mmu_do_page_fault() doesn't have
shared bit set when the memory attribute of it is shared, and it leads
to wrong root in tdp_mmu_get_root_for_fault().
Fix it by embedding the direct bits in the gpa that is passed to
kvm_tdp_map_page(), when the memory of the gpa is not private.
[*] https://lore.kernel.org/qemu-devel/4a757796-11c2-47f1-ae0d-335626e818fd@intel.com/
Reported-by: Xiaoyao Li <xiaoyao.li@intel.com>
Closes: https://lore.kernel.org/qemu-devel/4a757796-11c2-47f1-ae0d-335626e818fd@intel.com/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-ID: <20250611001018.2179964-1-xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions