diff options
Diffstat (limited to 'arch/arm64/kvm/emulate-nested.c')
| -rw-r--r-- | arch/arm64/kvm/emulate-nested.c | 49 |
1 files changed, 42 insertions, 7 deletions
diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c index 3a384e9660b8..90cb4b7ae0ff 100644 --- a/arch/arm64/kvm/emulate-nested.c +++ b/arch/arm64/kvm/emulate-nested.c @@ -88,6 +88,7 @@ enum cgt_group_id { CGT_HCRX_EnFPM, CGT_HCRX_TCR2En, + CGT_HCRX_SCTLR2En, CGT_CNTHCTL_EL1TVT, CGT_CNTHCTL_EL1TVCT, @@ -108,6 +109,7 @@ enum cgt_group_id { CGT_HCR_TTLB_TTLBOS, CGT_HCR_TVM_TRVM, CGT_HCR_TVM_TRVM_HCRX_TCR2En, + CGT_HCR_TVM_TRVM_HCRX_SCTLR2En, CGT_HCR_TPU_TICAB, CGT_HCR_TPU_TOCU, CGT_HCR_NV1_nNV2_ENSCXT, @@ -398,6 +400,12 @@ static const struct trap_bits coarse_trap_bits[] = { .mask = HCRX_EL2_TCR2En, .behaviour = BEHAVE_FORWARD_RW, }, + [CGT_HCRX_SCTLR2En] = { + .index = HCRX_EL2, + .value = 0, + .mask = HCRX_EL2_SCTLR2En, + .behaviour = BEHAVE_FORWARD_RW, + }, [CGT_CNTHCTL_EL1TVT] = { .index = CNTHCTL_EL2, .value = CNTHCTL_EL1TVT, @@ -449,6 +457,8 @@ static const enum cgt_group_id *coarse_control_combo[] = { MCB(CGT_HCR_TVM_TRVM, CGT_HCR_TVM, CGT_HCR_TRVM), MCB(CGT_HCR_TVM_TRVM_HCRX_TCR2En, CGT_HCR_TVM, CGT_HCR_TRVM, CGT_HCRX_TCR2En), + MCB(CGT_HCR_TVM_TRVM_HCRX_SCTLR2En, + CGT_HCR_TVM, CGT_HCR_TRVM, CGT_HCRX_SCTLR2En), MCB(CGT_HCR_TPU_TICAB, CGT_HCR_TPU, CGT_HCR_TICAB), MCB(CGT_HCR_TPU_TOCU, CGT_HCR_TPU, CGT_HCR_TOCU), MCB(CGT_HCR_NV1_nNV2_ENSCXT, CGT_HCR_NV1_nNV2, CGT_HCR_ENSCXT), @@ -782,6 +792,7 @@ static const struct encoding_to_trap_config encoding_to_cgt[] __initconst = { SR_TRAP(OP_TLBI_RVALE1OSNXS, CGT_HCR_TTLB_TTLBOS), SR_TRAP(OP_TLBI_RVAALE1OSNXS, CGT_HCR_TTLB_TTLBOS), SR_TRAP(SYS_SCTLR_EL1, CGT_HCR_TVM_TRVM), + SR_TRAP(SYS_SCTLR2_EL1, CGT_HCR_TVM_TRVM_HCRX_SCTLR2En), SR_TRAP(SYS_TTBR0_EL1, CGT_HCR_TVM_TRVM), SR_TRAP(SYS_TTBR1_EL1, CGT_HCR_TVM_TRVM), SR_TRAP(SYS_TCR_EL1, CGT_HCR_TVM_TRVM), @@ -1354,6 +1365,7 @@ static const struct encoding_to_trap_config encoding_to_fgt[] __initconst = { SR_FGT(SYS_SCXTNUM_EL0, HFGRTR, SCXTNUM_EL0, 1), SR_FGT(SYS_SCXTNUM_EL1, HFGRTR, SCXTNUM_EL1, 1), SR_FGT(SYS_SCTLR_EL1, HFGRTR, SCTLR_EL1, 1), + SR_FGT(SYS_SCTLR2_EL1, HFGRTR, SCTLR_EL1, 1), SR_FGT(SYS_REVIDR_EL1, HFGRTR, REVIDR_EL1, 1), SR_FGT(SYS_PAR_EL1, HFGRTR, PAR_EL1, 1), SR_FGT(SYS_MPIDR_EL1, HFGRTR, MPIDR_EL1, 1), @@ -2592,13 +2604,8 @@ inject: static bool __forward_traps(struct kvm_vcpu *vcpu, unsigned int reg, u64 control_bit) { - bool control_bit_set; - - if (!vcpu_has_nv(vcpu)) - return false; - - control_bit_set = __vcpu_sys_reg(vcpu, reg) & control_bit; - if (!is_hyp_ctxt(vcpu) && control_bit_set) { + if (is_nested_ctxt(vcpu) && + (__vcpu_sys_reg(vcpu, reg) & control_bit)) { kvm_inject_nested_sync(vcpu, kvm_vcpu_get_esr(vcpu)); return true; } @@ -2719,6 +2726,9 @@ static void kvm_inject_el2_exception(struct kvm_vcpu *vcpu, u64 esr_el2, case except_type_irq: kvm_pend_exception(vcpu, EXCEPT_AA64_EL2_IRQ); break; + case except_type_serror: + kvm_pend_exception(vcpu, EXCEPT_AA64_EL2_SERR); + break; default: WARN_ONCE(1, "Unsupported EL2 exception injection %d\n", type); } @@ -2816,3 +2826,28 @@ int kvm_inject_nested_irq(struct kvm_vcpu *vcpu) /* esr_el2 value doesn't matter for exits due to irqs. */ return kvm_inject_nested(vcpu, 0, except_type_irq); } + +int kvm_inject_nested_sea(struct kvm_vcpu *vcpu, bool iabt, u64 addr) +{ + u64 esr = FIELD_PREP(ESR_ELx_EC_MASK, + iabt ? ESR_ELx_EC_IABT_LOW : ESR_ELx_EC_DABT_LOW); + esr |= ESR_ELx_FSC_EXTABT | ESR_ELx_IL; + + vcpu_write_sys_reg(vcpu, FAR_EL2, addr); + + if (__vcpu_sys_reg(vcpu, SCTLR2_EL2) & SCTLR2_EL1_EASE) + return kvm_inject_nested(vcpu, esr, except_type_serror); + + return kvm_inject_nested_sync(vcpu, esr); +} + +int kvm_inject_nested_serror(struct kvm_vcpu *vcpu, u64 esr) +{ + /* + * Hardware sets up the EC field when propagating ESR as a result of + * vSError injection. Manually populate EC for an emulated SError + * exception. + */ + esr |= FIELD_PREP(ESR_ELx_EC_MASK, ESR_ELx_EC_SERROR); + return kvm_inject_nested(vcpu, esr, except_type_serror); +} |