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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2022-11-01 17:54:04 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-11-18 20:59:17 +0300 |
| commit | c30e9bc8b606077142969a807ada42ca921e605a (patch) | |
| tree | d07e517a954440cfdd94105bde5ead7b8e9c3f38 /arch/x86/kvm/svm/nested.c | |
| parent | 046f5756c49106471bc98bd32b87a62d0717ddda (diff) | |
| download | linux-c30e9bc8b606077142969a807ada42ca921e605a.tar.xz | |
KVM: nVMX: hyper-v: Enable L2 TLB flush
Enable L2 TLB flush feature on nVMX when:
- Enlightened VMCS is in use.
- The feature flag is enabled in eVMCS.
- The feature flag is enabled in partition assist page.
Perform synthetic vmexit to L1 after processing TLB flush call upon
request (HV_VMX_SYNTHETIC_EXIT_REASON_TRAP_AFTER_FLUSH).
Note: nested_evmcs_l2_tlb_flush_enabled() uses cached VP assist page copy
which gets updated from nested_vmx_handle_enlightened_vmptrld(). This is
also guaranteed to happen post migration with eVMCS backed L2 running.
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221101145426.251680-27-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm/nested.c')
0 files changed, 0 insertions, 0 deletions