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| author | Oliver Upton <[email protected]> | 2025-07-08 17:25:10 +0000 |
|---|---|---|
| committer | Oliver Upton <[email protected]> | 2025-07-08 18:35:54 +0000 |
| commit | 9aba641b9ec2a9f443a6c666c054c5e98ef550b5 (patch) | |
| tree | 6ca4c4e3d20f305b77f3d1d2ae9f3a6d2f9fa5f4 /arch/arm64/kvm/emulate-nested.c | |
| parent | KVM: arm64: Treat vCPU with pending SError as runnable (diff) | |
| download | kernel-9aba641b9ec2a9f443a6c666c054c5e98ef550b5.tar.gz kernel-9aba641b9ec2a9f443a6c666c054c5e98ef550b5.zip | |
KVM: arm64: nv: Respect exception routing rules for SEAs
Synchronous external aborts are taken to EL2 if ELIsInHost() or
HCR_EL2.TEA=1. Rework the SEA injection plumbing to respect the imposed
routing of the guest hypervisor and opportunistically rephrase things to
make their function a bit more obvious.
Reviewed-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Oliver Upton <[email protected]>
Diffstat (limited to 'arch/arm64/kvm/emulate-nested.c')
| -rw-r--r-- | arch/arm64/kvm/emulate-nested.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c index 1de4a9001d9d..65a2471c5638 100644 --- a/arch/arm64/kvm/emulate-nested.c +++ b/arch/arm64/kvm/emulate-nested.c @@ -2811,3 +2811,13 @@ int kvm_inject_nested_irq(struct kvm_vcpu *vcpu) /* esr_el2 value doesn't matter for exits due to irqs. */ return kvm_inject_nested(vcpu, 0, except_type_irq); } + +int kvm_inject_nested_sea(struct kvm_vcpu *vcpu, bool iabt, u64 addr) +{ + u64 esr = FIELD_PREP(ESR_ELx_EC_MASK, + iabt ? ESR_ELx_EC_IABT_LOW : ESR_ELx_EC_DABT_LOW); + esr |= ESR_ELx_FSC_EXTABT | ESR_ELx_IL; + + vcpu_write_sys_reg(vcpu, FAR_EL2, addr); + return kvm_inject_nested_sync(vcpu, esr); +} |