diff options
| author | Marc Zyngier <maz@kernel.org> | 2024-06-14 15:45:50 +0100 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-06-19 08:14:38 +0000 |
| commit | 0cb8aae2267687a13e22cf906d1ee1e9840bbe27 (patch) | |
| tree | ad241fa7bcf8551abbe1db8a36a3c8fda8a95de5 /arch/arm64/kvm/hyp/vhe | |
| parent | 809b2e6013a51352e407c3071219f12ecceed47f (diff) | |
KVM: arm64: nv: Add handling of outer-shareable TLBI operations
Our handling of outer-shareable TLBIs is pretty basic: we just
map them to the existing inner-shareable ones, because we really
don't have anything else.
The only significant change is that we can now advertise FEAT_TLBIOS
support if the host supports it.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240614144552.2773592-15-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Diffstat (limited to 'arch/arm64/kvm/hyp/vhe')
| -rw-r--r-- | arch/arm64/kvm/hyp/vhe/tlb.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp/vhe/tlb.c b/arch/arm64/kvm/hyp/vhe/tlb.c index 75aa36465805..85db6ffd9d9d 100644 --- a/arch/arm64/kvm/hyp/vhe/tlb.c +++ b/arch/arm64/kvm/hyp/vhe/tlb.c @@ -226,6 +226,7 @@ void __kvm_flush_vm_context(void) * * - a TLBI targeting EL2 S1 is remapped to EL1 S1 * - a non-shareable TLBI is upgraded to being inner-shareable + * - an outer-shareable TLBI is also mapped to inner-shareable */ int __kvm_tlbi_s1e2(struct kvm_s2_mmu *mmu, u64 va, u64 sys_encoding) { @@ -245,32 +246,41 @@ int __kvm_tlbi_s1e2(struct kvm_s2_mmu *mmu, u64 va, u64 sys_encoding) switch (sys_encoding) { case OP_TLBI_ALLE2: case OP_TLBI_ALLE2IS: + case OP_TLBI_ALLE2OS: case OP_TLBI_VMALLE1: case OP_TLBI_VMALLE1IS: + case OP_TLBI_VMALLE1OS: __tlbi(vmalle1is); break; case OP_TLBI_VAE2: case OP_TLBI_VAE2IS: + case OP_TLBI_VAE2OS: case OP_TLBI_VAE1: case OP_TLBI_VAE1IS: + case OP_TLBI_VAE1OS: __tlbi(vae1is, va); break; case OP_TLBI_VALE2: case OP_TLBI_VALE2IS: + case OP_TLBI_VALE2OS: case OP_TLBI_VALE1: case OP_TLBI_VALE1IS: + case OP_TLBI_VALE1OS: __tlbi(vale1is, va); break; case OP_TLBI_ASIDE1: case OP_TLBI_ASIDE1IS: + case OP_TLBI_ASIDE1OS: __tlbi(aside1is, va); break; case OP_TLBI_VAAE1: case OP_TLBI_VAAE1IS: + case OP_TLBI_VAAE1OS: __tlbi(vaae1is, va); break; case OP_TLBI_VAALE1: case OP_TLBI_VAALE1IS: + case OP_TLBI_VAALE1OS: __tlbi(vaale1is, va); break; default: |