diff options
| -rw-r--r-- | arch/arm64/kvm/config.c | 48 | ||||
| -rw-r--r-- | arch/arm64/kvm/nested.c | 20 |
2 files changed, 49 insertions, 19 deletions
diff --git a/arch/arm64/kvm/config.c b/arch/arm64/kvm/config.c index 54911a93b001..8265b722d442 100644 --- a/arch/arm64/kvm/config.c +++ b/arch/arm64/kvm/config.c @@ -131,6 +131,9 @@ struct reg_bits_to_feat_map { #define FEAT_SPMU ID_AA64DFR1_EL1, SPMU, IMP #define FEAT_SPE_nVM ID_AA64DFR2_EL1, SPE_nVM, IMP #define FEAT_STEP2 ID_AA64DFR2_EL1, STEP, IMP +#define FEAT_ASID2 ID_AA64MMFR4_EL1, ASID2, IMP +#define FEAT_MEC ID_AA64MMFR3_EL1, MEC, IMP +#define FEAT_HAFT ID_AA64MMFR1_EL1, HAFDBS, HAFT static bool not_feat_aa64el3(struct kvm *kvm) { @@ -218,6 +221,21 @@ static bool feat_trbe_mpam(struct kvm *kvm) (read_sysreg_s(SYS_TRBIDR_EL1) & TRBIDR_EL1_MPAM)); } +static bool feat_asid2_e2h1(struct kvm *kvm) +{ + return kvm_has_feat(kvm, FEAT_ASID2) && !kvm_has_feat(kvm, FEAT_E2H0); +} + +static bool feat_d128_e2h1(struct kvm *kvm) +{ + return kvm_has_feat(kvm, FEAT_D128) && !kvm_has_feat(kvm, FEAT_E2H0); +} + +static bool feat_mec_e2h1(struct kvm *kvm) +{ + return kvm_has_feat(kvm, FEAT_MEC) && !kvm_has_feat(kvm, FEAT_E2H0); +} + static bool feat_ebep_pmuv3_ss(struct kvm *kvm) { return kvm_has_feat(kvm, FEAT_EBEP) || kvm_has_feat(kvm, FEAT_PMUv3_SS); @@ -832,6 +850,28 @@ static const struct reg_bits_to_feat_map hcr_feat_map[] = { NEEDS_FEAT_FIXED(HCR_EL2_E2H, compute_hcr_e2h), }; +static const struct reg_bits_to_feat_map tcr2_el2_feat_map[] = { + NEEDS_FEAT(TCR2_EL2_FNG1 | + TCR2_EL2_FNG0 | + TCR2_EL2_A2, + feat_asid2_e2h1), + NEEDS_FEAT(TCR2_EL2_DisCH1 | + TCR2_EL2_DisCH0 | + TCR2_EL2_D128, + feat_d128_e2h1), + NEEDS_FEAT(TCR2_EL2_AMEC1, feat_mec_e2h1), + NEEDS_FEAT(TCR2_EL2_AMEC0, FEAT_MEC), + NEEDS_FEAT(TCR2_EL2_HAFT, FEAT_HAFT), + NEEDS_FEAT(TCR2_EL2_PTTWI | + TCR2_EL2_PnCH, + FEAT_THE), + NEEDS_FEAT(TCR2_EL2_AIE, FEAT_AIE), + NEEDS_FEAT(TCR2_EL2_POE | + TCR2_EL2_E0POE, + FEAT_S1POE), + NEEDS_FEAT(TCR2_EL2_PIE, FEAT_S1PIE), +}; + static void __init check_feat_map(const struct reg_bits_to_feat_map *map, int map_size, u64 res0, const char *str) { @@ -863,6 +903,8 @@ void __init check_feature_map(void) __HCRX_EL2_RES0, "HCRX_EL2"); check_feat_map(hcr_feat_map, ARRAY_SIZE(hcr_feat_map), HCR_EL2_RES0, "HCR_EL2"); + check_feat_map(tcr2_el2_feat_map, ARRAY_SIZE(tcr2_el2_feat_map), + TCR2_EL2_RES0, "TCR2_EL2"); } static bool idreg_feat_match(struct kvm *kvm, const struct reg_bits_to_feat_map *map) @@ -1077,6 +1119,12 @@ void get_reg_fixed_bits(struct kvm *kvm, enum vcpu_sysreg reg, u64 *res0, u64 *r *res0 |= HCR_EL2_RES0 | (mask & ~fixed); *res1 = HCR_EL2_RES1 | (mask & fixed); break; + case TCR2_EL2: + *res0 = compute_res0_bits(kvm, tcr2_el2_feat_map, + ARRAY_SIZE(tcr2_el2_feat_map), 0, 0); + *res0 |= TCR2_EL2_RES0; + *res1 = TCR2_EL2_RES1; + break; default: WARN_ON_ONCE(1); *res0 = *res1 = 0; diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c index 5b191f4dc566..efb1f2caca62 100644 --- a/arch/arm64/kvm/nested.c +++ b/arch/arm64/kvm/nested.c @@ -1663,25 +1663,7 @@ int kvm_init_nv_sysregs(struct kvm_vcpu *vcpu) set_sysreg_masks(kvm, HFGITR2_EL2, res0, res1); /* TCR2_EL2 */ - res0 = TCR2_EL2_RES0; - res1 = TCR2_EL2_RES1; - if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, D128, IMP)) - res0 |= (TCR2_EL2_DisCH0 | TCR2_EL2_DisCH1 | TCR2_EL2_D128); - if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, MEC, IMP)) - res0 |= TCR2_EL2_AMEC1 | TCR2_EL2_AMEC0; - if (!kvm_has_feat(kvm, ID_AA64MMFR1_EL1, HAFDBS, HAFT)) - res0 |= TCR2_EL2_HAFT; - if (!kvm_has_feat(kvm, ID_AA64PFR1_EL1, THE, IMP)) - res0 |= TCR2_EL2_PTTWI | TCR2_EL2_PnCH; - if (!kvm_has_feat(kvm, ID_AA64MMFR3_EL1, AIE, IMP)) - res0 |= TCR2_EL2_AIE; - if (!kvm_has_s1poe(kvm)) - res0 |= TCR2_EL2_POE | TCR2_EL2_E0POE; - if (!kvm_has_s1pie(kvm)) - res0 |= TCR2_EL2_PIE; - if (!kvm_has_feat(kvm, ID_AA64MMFR1_EL1, VH, IMP)) - res0 |= (TCR2_EL2_E0POE | TCR2_EL2_D128 | - TCR2_EL2_AMEC1 | TCR2_EL2_DisCH0 | TCR2_EL2_DisCH1); + get_reg_fixed_bits(kvm, TCR2_EL2, &res0, &res1); set_sysreg_masks(kvm, TCR2_EL2, res0, res1); /* SCTLR_EL1 */ |