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| author | Yeoreum Yun <yeoreum.yun@arm.com> | 2025-06-18 10:29:54 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2025-07-02 18:50:52 +0100 |
| commit | 7502bdb43aa2a978d8f7ed0d1e2272cca1702317 (patch) | |
| tree | fd0726100b061bc70196687a75666c5e4714b7d1 | |
| parent | f620372209bfe5b1c468540320a0bc3549d6afc7 (diff) | |
KVM: arm64: Expose MTE_STORE_ONLY feature to guest
expose MTE_STORE_ONLY feature to guest.
Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250618092957.2069907-6-yeoreum.yun@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 45457963e8b6..adabbb35d33c 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1618,7 +1618,9 @@ static u64 __kvm_read_sanitised_id_reg(const struct kvm_vcpu *vcpu, break; case SYS_ID_AA64PFR2_EL1: val &= ID_AA64PFR2_EL1_FPMR | - (kvm_has_mte(vcpu->kvm) ? ID_AA64PFR2_EL1_MTEFAR : 0); + (kvm_has_mte(vcpu->kvm) ? + ID_AA64PFR2_EL1_MTEFAR | ID_AA64PFR2_EL1_MTESTOREONLY : + 0); break; case SYS_ID_AA64ISAR1_EL1: if (!vcpu_has_ptrauth(vcpu)) @@ -2878,7 +2880,8 @@ static const struct sys_reg_desc sys_reg_descs[] = { ID_AA64PFR1_EL1_MTE)), ID_WRITABLE(ID_AA64PFR2_EL1, ID_AA64PFR2_EL1_FPMR | - ID_AA64PFR2_EL1_MTEFAR), + ID_AA64PFR2_EL1_MTEFAR | + ID_AA64PFR2_EL1_MTESTOREONLY), ID_UNALLOCATED(4,3), ID_WRITABLE(ID_AA64ZFR0_EL1, ~ID_AA64ZFR0_EL1_RES0), ID_HIDDEN(ID_AA64SMFR0_EL1), |