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| author | Marc Zyngier <maz@kernel.org> | 2020-11-12 21:20:43 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-11-12 21:20:43 +0000 |
| commit | 4f6b838c378a52ea3ae0b15f12ca8a20849072fa (patch) | |
| tree | fbd8c2346320f97eda221b9150d787f9006e8b35 /arch/arm64/kvm/sys_regs.c | |
| parent | c512298eed0360923d0cbc4a1f30bc0509af0d50 (diff) | |
| parent | 3650b228f83adda7e5ee532e2b90429c03f7b9ec (diff) | |
| download | linux-4f6b838c378a52ea3ae0b15f12ca8a20849072fa.tar.gz linux-4f6b838c378a52ea3ae0b15f12ca8a20849072fa.tar.bz2 linux-4f6b838c378a52ea3ae0b15f12ca8a20849072fa.zip | |
Merge tag 'v5.10-rc1' into kvmarm-master/next
Linux 5.10-rc1
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/kvm/sys_regs.c')
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 436043cd327e..6d287eefd9f1 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1131,6 +1131,8 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu, if (!(val & (0xfUL << ID_AA64PFR0_CSV2_SHIFT)) && arm64_get_spectre_v2_state() == SPECTRE_UNAFFECTED) val |= (1UL << ID_AA64PFR0_CSV2_SHIFT); + } else if (id == SYS_ID_AA64PFR1_EL1) { + val &= ~(0xfUL << ID_AA64PFR1_MTE_SHIFT); } else if (id == SYS_ID_AA64ISAR1_EL1 && !vcpu_has_ptrauth(vcpu)) { val &= ~((0xfUL << ID_AA64ISAR1_APA_SHIFT) | (0xfUL << ID_AA64ISAR1_API_SHIFT) | @@ -1339,6 +1341,13 @@ static bool access_ccsidr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, return true; } +static bool access_mte_regs(struct kvm_vcpu *vcpu, struct sys_reg_params *p, + const struct sys_reg_desc *r) +{ + kvm_inject_undefined(vcpu); + return false; +} + /* sys_reg_desc initialiser for known cpufeature ID registers */ #define ID_SANITISED(name) { \ SYS_DESC(SYS_##name), \ @@ -1505,6 +1514,10 @@ static const struct sys_reg_desc sys_reg_descs[] = { { SYS_DESC(SYS_SCTLR_EL1), access_vm_reg, reset_val, SCTLR_EL1, 0x00C50078 }, { SYS_DESC(SYS_ACTLR_EL1), access_actlr, reset_actlr, ACTLR_EL1 }, { SYS_DESC(SYS_CPACR_EL1), NULL, reset_val, CPACR_EL1, 0 }, + + { SYS_DESC(SYS_RGSR_EL1), access_mte_regs }, + { SYS_DESC(SYS_GCR_EL1), access_mte_regs }, + { SYS_DESC(SYS_ZCR_EL1), NULL, reset_val, ZCR_EL1, 0, .visibility = sve_visibility }, { SYS_DESC(SYS_TTBR0_EL1), access_vm_reg, reset_unknown, TTBR0_EL1 }, { SYS_DESC(SYS_TTBR1_EL1), access_vm_reg, reset_unknown, TTBR1_EL1 }, @@ -1529,6 +1542,9 @@ static const struct sys_reg_desc sys_reg_descs[] = { { SYS_DESC(SYS_ERXMISC0_EL1), trap_raz_wi }, { SYS_DESC(SYS_ERXMISC1_EL1), trap_raz_wi }, + { SYS_DESC(SYS_TFSR_EL1), access_mte_regs }, + { SYS_DESC(SYS_TFSRE0_EL1), access_mte_regs }, + { SYS_DESC(SYS_FAR_EL1), access_vm_reg, reset_unknown, FAR_EL1 }, { SYS_DESC(SYS_PAR_EL1), NULL, reset_unknown, PAR_EL1 }, |