diff options
| author | Marc Zyngier <maz@kernel.org> | 2021-03-11 15:07:14 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-03-18 13:57:49 +0000 |
| commit | 0a9a98fda3a24b0775ace4be096290b221f2f6a5 (patch) | |
| tree | c29b6ae2741322a04b6c8353c4e97712a858c29a /arch | |
| parent | 52029198c1cec1e21513d74f87363a0408f28650 (diff) | |
KVM: arm64: Map SVE context at EL2 when available
When running on nVHE, and that the vcpu supports SVE, map the
SVE state at EL2 so that KVM can access it.
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/kvm/fpsimd.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/kvm/fpsimd.c b/arch/arm64/kvm/fpsimd.c index b7e36a506d3d..3c37a419fa82 100644 --- a/arch/arm64/kvm/fpsimd.c +++ b/arch/arm64/kvm/fpsimd.c @@ -43,6 +43,17 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu) if (ret) goto error; + if (vcpu->arch.sve_state) { + void *sve_end; + + sve_end = vcpu->arch.sve_state + vcpu_sve_state_size(vcpu); + + ret = create_hyp_mappings(vcpu->arch.sve_state, sve_end, + PAGE_HYP); + if (ret) + goto error; + } + vcpu->arch.host_thread_info = kern_hyp_va(ti); vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd); error: |