[PATCH v1] KVM: arm64: Advertise MMFR0 TGRAN for pVMs
From: Vincent Donnefort <hidden>
Date: 2026-09-13 20:31:12
Also in:
kvmarm
Subsystem:
arm64 port (aarch64 architecture), kernel virtual machine for arm64 (kvm/arm64), the rest · Maintainers:
Catalin Marinas, Will Deacon, Marc Zyngier, Oliver Upton, Linus Torvalds
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 <redacted> --- 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