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KVM: arm64: Map SVE context at EL2 when available

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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>
This commit is contained in:
Marc Zyngier
2021-03-11 15:07:14 +00:00
parent 52029198c1
commit 0a9a98fda3
1 changed files with 11 additions and 0 deletions
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11
arch/arm64/kvm/fpsimd.c
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@ -43,6 +43,17 @@ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu)
if (ret) if (ret)
goto error; 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_thread_info = kern_hyp_va(ti);
vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd); vcpu->arch.host_fpsimd_state = kern_hyp_va(fpsimd);
error: error: