* [PATCH v1] KVM: arm64: Advertise MMFR0 TGRAN for pVMs
@ 2026-09-13 20:31 Vincent Donnefort
0 siblings, 0 replies; only message in thread
From: Vincent Donnefort @ 2026-09-13 20:31 UTC (permalink / raw)
To: maz, oupton, kvmarm, linux-arm-kernel
Cc: joey.gouly, seiden, suzuki.poulose, yuzenghui, catalin.marinas,
will, kernel-team, fuad.tabba, Vincent Donnefort
Protected VMs can support granules bigger than 4K. Advertise TGRAN16 and
TGRAN64. TGRAN4 wasn't advertised as it is enabled by default (supported
when 0). Add it as well for consistence.
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
---
arch/arm64/kvm/hyp/nvhe/sys_regs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 8758c6801776..ec469d96516a 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -121,6 +121,9 @@ static const struct pvm_ftr_bits pvmid_aa64mmfr0[] = {
MAX_FEAT(ID_AA64MMFR0_EL1, SNSMEM, IMP),
MAX_FEAT(ID_AA64MMFR0_EL1, BIGENDEL0, IMP),
MAX_FEAT(ID_AA64MMFR0_EL1, EXS, IMP),
+ MAX_FEAT(ID_AA64MMFR0_EL1, TGRAN4, IMP),
+ MAX_FEAT(ID_AA64MMFR0_EL1, TGRAN16, IMP),
+ MAX_FEAT(ID_AA64MMFR0_EL1, TGRAN64, IMP),
FEAT_END
};
base-commit: df2908090cda368b01ff43709f51890076c56157
--
2.55.0.1007.g17ff1f9808-goog
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