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| author | Sean Christopherson <seanjc@google.com> | 2021-04-21 19:11:25 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-04-26 05:27:17 -0400 |
| commit | 469bb32b68d5a414fea293c17b532329c6dc9612 (patch) | |
| tree | 41833bf693c816cfcb2828f15f12e26b8ab312ff /drivers/firmware/psci/psci.c | |
| parent | 82b7ae0481aeed393094e4f73bf4566a504b86bc (diff) | |
| download | linux-469bb32b68d5a414fea293c17b532329c6dc9612.tar.bz2 | |
KVM: SVM: Skip SEV cache flush if no ASIDs have been used
Skip SEV's expensive WBINVD and DF_FLUSH if there are no SEV ASIDs
waiting to be reclaimed, e.g. if SEV was never used. This "fixes" an
issue where the DF_FLUSH fails during hardware teardown if the original
SEV_INIT failed. Ideally, SEV wouldn't be marked as enabled in KVM if
SEV_INIT fails, but that's a problem for another day.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210422021125.3417167-16-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'drivers/firmware/psci/psci.c')
0 files changed, 0 insertions, 0 deletions