diff options
| -rw-r--r-- | arch/arm64/include/asm/kvm_nested.h | 1 | ||||
| -rw-r--r-- | arch/arm64/kvm/nested.c | 45 | ||||
| -rw-r--r-- | arch/arm64/kvm/sys_regs.c | 3 |
3 files changed, 5 insertions, 44 deletions
diff --git a/arch/arm64/include/asm/kvm_nested.h b/arch/arm64/include/asm/kvm_nested.h index 56c4bcd35e2e..692f403c1896 100644 --- a/arch/arm64/include/asm/kvm_nested.h +++ b/arch/arm64/include/asm/kvm_nested.h @@ -188,6 +188,7 @@ static inline bool kvm_supported_tlbi_s1e2_op(struct kvm_vcpu *vpcu, u32 instr) } int kvm_init_nv_sysregs(struct kvm_vcpu *vcpu); +u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val); #ifdef CONFIG_ARM64_PTR_AUTH bool kvm_auth_eretax(struct kvm_vcpu *vcpu, u64 *elr); diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c index f0d7dd3615bb..409e5e67ae1e 100644 --- a/arch/arm64/kvm/nested.c +++ b/arch/arm64/kvm/nested.c @@ -804,7 +804,7 @@ void kvm_arch_flush_shadow_all(struct kvm *kvm) * This list should get updated as new features get added to the NV * support, and new extension to the architecture. */ -static u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val) +u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val) { switch (reg) { case SYS_ID_AA64ISAR0_EL1: @@ -929,47 +929,6 @@ static u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val) return val; } -static void limit_nv_id_regs(struct kvm *kvm) -{ - u64 val; - - val = kvm_read_vm_id_reg(kvm, SYS_ID_AA64ISAR0_EL1); - val = limit_nv_id_reg(kvm, SYS_ID_AA64ISAR0_EL1, val); - kvm_set_vm_id_reg(kvm, SYS_ID_AA64ISAR0_EL1, val); - - val = kvm_read_vm_id_reg(kvm, SYS_ID_AA64ISAR1_EL1); - val = limit_nv_id_reg(kvm, SYS_ID_AA64ISAR1_EL1, val); - kvm_set_vm_id_reg(kvm, SYS_ID_AA64ISAR1_EL1, val); - - val = kvm_read_vm_id_reg(kvm, SYS_ID_AA64PFR0_EL1); - val = limit_nv_id_reg(kvm, SYS_ID_AA64PFR0_EL1, val); - kvm_set_vm_id_reg(kvm, SYS_ID_AA64PFR0_EL1, val); - - val = kvm_read_vm_id_reg(kvm, SYS_ID_AA64PFR1_EL1); - val = limit_nv_id_reg(kvm, SYS_ID_AA64PFR1_EL1, val); - kvm_set_vm_id_reg(kvm, SYS_ID_AA64PFR1_EL1, val); - - val = kvm_read_vm_id_reg(kvm, SYS_ID_AA64MMFR0_EL1); - val = limit_nv_id_reg(kvm, SYS_ID_AA64MMFR0_EL1, val); - kvm_set_vm_id_reg(kvm, SYS_ID_AA64MMFR0_EL1, val); - - val = kvm_read_vm_id_reg(kvm, SYS_ID_AA64MMFR1_EL1); - val = limit_nv_id_reg(kvm, SYS_ID_AA64MMFR1_EL1, val); - kvm_set_vm_id_reg(kvm, SYS_ID_AA64MMFR1_EL1, val); - - val = kvm_read_vm_id_reg(kvm, SYS_ID_AA64MMFR2_EL1); - val = limit_nv_id_reg(kvm, SYS_ID_AA64MMFR2_EL1, val); - kvm_set_vm_id_reg(kvm, SYS_ID_AA64MMFR2_EL1, val); - - val = kvm_read_vm_id_reg(kvm, SYS_ID_AA64MMFR4_EL1); - val = limit_nv_id_reg(kvm, SYS_ID_AA64MMFR4_EL1, val); - kvm_set_vm_id_reg(kvm, SYS_ID_AA64MMFR4_EL1, val); - - val = kvm_read_vm_id_reg(kvm, SYS_ID_AA64DFR0_EL1); - val = limit_nv_id_reg(kvm, SYS_ID_AA64DFR0_EL1, val); - kvm_set_vm_id_reg(kvm, SYS_ID_AA64DFR0_EL1, val); -} - u64 kvm_vcpu_apply_reg_masks(const struct kvm_vcpu *vcpu, enum vcpu_sysreg sr, u64 v) { @@ -1014,8 +973,6 @@ int kvm_init_nv_sysregs(struct kvm_vcpu *vcpu) if (!kvm->arch.sysreg_masks) return -ENOMEM; - limit_nv_id_regs(kvm); - /* VTTBR_EL2 */ res0 = res1 = 0; if (!kvm_has_feat_enum(kvm, ID_AA64MMFR1_EL1, VMIDBits, 16)) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index db94d8a38033..dacccc35a3bd 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1638,6 +1638,9 @@ static u64 __kvm_read_sanitised_id_reg(const struct kvm_vcpu *vcpu, break; } + if (vcpu_has_nv(vcpu)) + val = limit_nv_id_reg(vcpu->kvm, id, val); + return val; } |