diff options
| author | Quentin Perret <qperret@google.com> | 2021-12-15 16:12:31 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-12-16 12:58:57 +0000 |
| commit | 52b28657ebd7cd20e931ce71190f235d0fa018a6 (patch) | |
| tree | 98a6a0f27ff745cddbccc2f4dbbd3033e73712af /arch/arm64/kvm/reset.c | |
| parent | b8cc6eb5bded7078f796b2ebf548f79850281eb6 (diff) | |
| download | linux-52b28657ebd7cd20e931ce71190f235d0fa018a6.tar.bz2 | |
KVM: arm64: pkvm: Unshare guest structs during teardown
Make use of the newly introduced unshare hypercall during guest teardown
to unmap guest-related data structures from the hyp stage-1.
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215161232.1480836-15-qperret@google.com
Diffstat (limited to 'arch/arm64/kvm/reset.c')
| -rw-r--r-- | arch/arm64/kvm/reset.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c index e3e2a79fbd75..798a84eddbde 100644 --- a/arch/arm64/kvm/reset.c +++ b/arch/arm64/kvm/reset.c @@ -150,7 +150,13 @@ bool kvm_arm_vcpu_is_finalized(struct kvm_vcpu *vcpu) void kvm_arm_vcpu_destroy(struct kvm_vcpu *vcpu) { - kfree(vcpu->arch.sve_state); + void *sve_state = vcpu->arch.sve_state; + + kvm_vcpu_unshare_task_fp(vcpu); + kvm_unshare_hyp(vcpu, vcpu + 1); + if (sve_state) + kvm_unshare_hyp(sve_state, sve_state + vcpu_sve_state_size(vcpu)); + kfree(sve_state); } static void kvm_vcpu_reset_sve(struct kvm_vcpu *vcpu) |