diff options
Diffstat (limited to 'arch/arm64/kvm/config.c')
| -rw-r--r-- | arch/arm64/kvm/config.c | 255 |
1 files changed, 252 insertions, 3 deletions
diff --git a/arch/arm64/kvm/config.c b/arch/arm64/kvm/config.c index 54911a93b001..da66c4a14775 100644 --- a/arch/arm64/kvm/config.c +++ b/arch/arm64/kvm/config.c @@ -66,7 +66,6 @@ struct reg_bits_to_feat_map { #define FEAT_BRBE ID_AA64DFR0_EL1, BRBE, IMP #define FEAT_TRC_SR ID_AA64DFR0_EL1, TraceVer, IMP #define FEAT_PMUv3 ID_AA64DFR0_EL1, PMUVer, IMP -#define FEAT_PMUv3p9 ID_AA64DFR0_EL1, PMUVer, V3P9 #define FEAT_TRBE ID_AA64DFR0_EL1, TraceBuffer, IMP #define FEAT_TRBEv1p1 ID_AA64DFR0_EL1, TraceBuffer, TRBE_V1P1 #define FEAT_DoubleLock ID_AA64DFR0_EL1, DoubleLock, IMP @@ -89,6 +88,7 @@ struct reg_bits_to_feat_map { #define FEAT_RASv2 ID_AA64PFR0_EL1, RAS, V2 #define FEAT_GICv3 ID_AA64PFR0_EL1, GIC, IMP #define FEAT_LOR ID_AA64MMFR1_EL1, LO, IMP +#define FEAT_SPEv1p2 ID_AA64DFR0_EL1, PMSVer, V1P2 #define FEAT_SPEv1p4 ID_AA64DFR0_EL1, PMSVer, V1P4 #define FEAT_SPEv1p5 ID_AA64DFR0_EL1, PMSVer, V1P5 #define FEAT_ATS1A ID_AA64ISAR2_EL1, ATS1A, IMP @@ -131,6 +131,27 @@ 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_SYSREG128 ID_AA64ISAR2_EL1, SYSREG_128, IMP +#define FEAT_CPA2 ID_AA64ISAR3_EL1, CPA, CPA2 +#define FEAT_ASID2 ID_AA64MMFR4_EL1, ASID2, IMP +#define FEAT_MEC ID_AA64MMFR3_EL1, MEC, IMP +#define FEAT_HAFT ID_AA64MMFR1_EL1, HAFDBS, HAFT +#define FEAT_BTI ID_AA64PFR1_EL1, BT, IMP +#define FEAT_ExS ID_AA64MMFR0_EL1, EXS, IMP +#define FEAT_IESB ID_AA64MMFR2_EL1, IESB, IMP +#define FEAT_LSE2 ID_AA64MMFR2_EL1, AT, IMP +#define FEAT_LSMAOC ID_AA64MMFR2_EL1, LSM, IMP +#define FEAT_MixedEnd ID_AA64MMFR0_EL1, BIGEND, IMP +#define FEAT_MixedEndEL0 ID_AA64MMFR0_EL1, BIGENDEL0, IMP +#define FEAT_MTE2 ID_AA64PFR1_EL1, MTE, MTE2 +#define FEAT_MTE_ASYNC ID_AA64PFR1_EL1, MTE_frac, ASYNC +#define FEAT_MTE_STORE_ONLY ID_AA64PFR2_EL1, MTESTOREONLY, IMP +#define FEAT_PAN ID_AA64MMFR1_EL1, PAN, IMP +#define FEAT_PAN3 ID_AA64MMFR1_EL1, PAN, PAN3 +#define FEAT_SSBS ID_AA64PFR1_EL1, SSBS, IMP +#define FEAT_TIDCP1 ID_AA64MMFR1_EL1, TIDCP1, IMP +#define FEAT_FGT ID_AA64MMFR0_EL1, FGT, IMP +#define FEAT_MTPMU ID_AA64DFR0_EL1, MTPMU, IMP static bool not_feat_aa64el3(struct kvm *kvm) { @@ -218,11 +239,62 @@ 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); } +static bool feat_mixedendel0(struct kvm *kvm) +{ + return kvm_has_feat(kvm, FEAT_MixedEnd) || kvm_has_feat(kvm, FEAT_MixedEndEL0); +} + +static bool feat_mte_async(struct kvm *kvm) +{ + return kvm_has_feat(kvm, FEAT_MTE2) && kvm_has_feat_enum(kvm, FEAT_MTE_ASYNC); +} + +#define check_pmu_revision(k, r) \ + ({ \ + (kvm_has_feat((k), ID_AA64DFR0_EL1, PMUVer, r) && \ + !kvm_has_feat((k), ID_AA64DFR0_EL1, PMUVer, IMP_DEF)); \ + }) + +static bool feat_pmuv3p1(struct kvm *kvm) +{ + return check_pmu_revision(kvm, V3P1); +} + +static bool feat_pmuv3p5(struct kvm *kvm) +{ + return check_pmu_revision(kvm, V3P5); +} + +static bool feat_pmuv3p7(struct kvm *kvm) +{ + return check_pmu_revision(kvm, V3P7); +} + +static bool feat_pmuv3p9(struct kvm *kvm) +{ + return check_pmu_revision(kvm, V3P9); +} + static bool compute_hcr_rw(struct kvm *kvm, u64 *bits) { /* This is purely academic: AArch32 and NV are mutually exclusive */ @@ -681,7 +753,7 @@ static const struct reg_bits_to_feat_map hdfgrtr2_feat_map[] = { NEEDS_FEAT(HDFGRTR2_EL2_nPMICFILTR_EL0 | HDFGRTR2_EL2_nPMICNTR_EL0, FEAT_PMUv3_ICNTR), - NEEDS_FEAT(HDFGRTR2_EL2_nPMUACR_EL1, FEAT_PMUv3p9), + NEEDS_FEAT(HDFGRTR2_EL2_nPMUACR_EL1, feat_pmuv3p9), NEEDS_FEAT(HDFGRTR2_EL2_nPMSSCR_EL1 | HDFGRTR2_EL2_nPMSSDATA, FEAT_PMUv3_SS), @@ -713,7 +785,7 @@ static const struct reg_bits_to_feat_map hdfgwtr2_feat_map[] = { FEAT_PMUv3_ICNTR), NEEDS_FEAT(HDFGWTR2_EL2_nPMUACR_EL1 | HDFGWTR2_EL2_nPMZR_EL0, - FEAT_PMUv3p9), + feat_pmuv3p9), NEEDS_FEAT(HDFGWTR2_EL2_nPMSSCR_EL1, FEAT_PMUv3_SS), NEEDS_FEAT(HDFGWTR2_EL2_nPMIAR_EL1, FEAT_SEBEP), NEEDS_FEAT(HDFGWTR2_EL2_nPMSDSFR_EL1, feat_spe_fds), @@ -832,6 +904,150 @@ 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 sctlr2_feat_map[] = { + NEEDS_FEAT(SCTLR2_EL1_NMEA | + SCTLR2_EL1_EASE, + FEAT_DoubleFault2), + NEEDS_FEAT(SCTLR2_EL1_EnADERR, feat_aderr), + NEEDS_FEAT(SCTLR2_EL1_EnANERR, feat_anerr), + NEEDS_FEAT(SCTLR2_EL1_EnIDCP128, FEAT_SYSREG128), + NEEDS_FEAT(SCTLR2_EL1_EnPACM | + SCTLR2_EL1_EnPACM0, + feat_pauth_lr), + NEEDS_FEAT(SCTLR2_EL1_CPTA | + SCTLR2_EL1_CPTA0 | + SCTLR2_EL1_CPTM | + SCTLR2_EL1_CPTM0, + FEAT_CPA2), +}; + +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 const struct reg_bits_to_feat_map sctlr_el1_feat_map[] = { + NEEDS_FEAT(SCTLR_EL1_CP15BEN | + SCTLR_EL1_ITD | + SCTLR_EL1_SED, + FEAT_AA32EL0), + NEEDS_FEAT(SCTLR_EL1_BT0 | + SCTLR_EL1_BT1, + FEAT_BTI), + NEEDS_FEAT(SCTLR_EL1_CMOW, FEAT_CMOW), + NEEDS_FEAT(SCTLR_EL1_TSCXT, feat_csv2_2_csv2_1p2), + NEEDS_FEAT(SCTLR_EL1_EIS | + SCTLR_EL1_EOS, + FEAT_ExS), + NEEDS_FEAT(SCTLR_EL1_EnFPM, FEAT_FPMR), + NEEDS_FEAT(SCTLR_EL1_IESB, FEAT_IESB), + NEEDS_FEAT(SCTLR_EL1_EnALS, FEAT_LS64), + NEEDS_FEAT(SCTLR_EL1_EnAS0, FEAT_LS64_ACCDATA), + NEEDS_FEAT(SCTLR_EL1_EnASR, FEAT_LS64_V), + NEEDS_FEAT(SCTLR_EL1_nAA, FEAT_LSE2), + NEEDS_FEAT(SCTLR_EL1_LSMAOE | + SCTLR_EL1_nTLSMD, + FEAT_LSMAOC), + NEEDS_FEAT(SCTLR_EL1_EE, FEAT_MixedEnd), + NEEDS_FEAT(SCTLR_EL1_E0E, feat_mixedendel0), + NEEDS_FEAT(SCTLR_EL1_MSCEn, FEAT_MOPS), + NEEDS_FEAT(SCTLR_EL1_ATA0 | + SCTLR_EL1_ATA | + SCTLR_EL1_TCF0 | + SCTLR_EL1_TCF, + FEAT_MTE2), + NEEDS_FEAT(SCTLR_EL1_ITFSB, feat_mte_async), + NEEDS_FEAT(SCTLR_EL1_TCSO0 | + SCTLR_EL1_TCSO, + FEAT_MTE_STORE_ONLY), + NEEDS_FEAT(SCTLR_EL1_NMI | + SCTLR_EL1_SPINTMASK, + FEAT_NMI), + NEEDS_FEAT(SCTLR_EL1_SPAN, FEAT_PAN), + NEEDS_FEAT(SCTLR_EL1_EPAN, FEAT_PAN3), + NEEDS_FEAT(SCTLR_EL1_EnDA | + SCTLR_EL1_EnDB | + SCTLR_EL1_EnIA | + SCTLR_EL1_EnIB, + feat_pauth), + NEEDS_FEAT(SCTLR_EL1_EnTP2, FEAT_SME), + NEEDS_FEAT(SCTLR_EL1_EnRCTX, FEAT_SPECRES), + NEEDS_FEAT(SCTLR_EL1_DSSBS, FEAT_SSBS), + NEEDS_FEAT(SCTLR_EL1_TIDCP, FEAT_TIDCP1), + NEEDS_FEAT(SCTLR_EL1_TME0 | + SCTLR_EL1_TME | + SCTLR_EL1_TMT0 | + SCTLR_EL1_TMT, + FEAT_TME), + NEEDS_FEAT(SCTLR_EL1_TWEDEL | + SCTLR_EL1_TWEDEn, + FEAT_TWED), + NEEDS_FEAT(SCTLR_EL1_UCI | + SCTLR_EL1_EE | + SCTLR_EL1_E0E | + SCTLR_EL1_WXN | + SCTLR_EL1_nTWE | + SCTLR_EL1_nTWI | + SCTLR_EL1_UCT | + SCTLR_EL1_DZE | + SCTLR_EL1_I | + SCTLR_EL1_UMA | + SCTLR_EL1_SA0 | + SCTLR_EL1_SA | + SCTLR_EL1_C | + SCTLR_EL1_A | + SCTLR_EL1_M, + FEAT_AA64EL1), +}; + +static const struct reg_bits_to_feat_map mdcr_el2_feat_map[] = { + NEEDS_FEAT(MDCR_EL2_EBWE, FEAT_Debugv8p9), + NEEDS_FEAT(MDCR_EL2_TDOSA, FEAT_DoubleLock), + NEEDS_FEAT(MDCR_EL2_PMEE, FEAT_EBEP), + NEEDS_FEAT(MDCR_EL2_TDCC, FEAT_FGT), + NEEDS_FEAT(MDCR_EL2_MTPME, FEAT_MTPMU), + NEEDS_FEAT(MDCR_EL2_HPME | + MDCR_EL2_HPMN | + MDCR_EL2_TPMCR | + MDCR_EL2_TPM, + FEAT_PMUv3), + NEEDS_FEAT(MDCR_EL2_HPMD, feat_pmuv3p1), + NEEDS_FEAT(MDCR_EL2_HCCD | + MDCR_EL2_HLP, + feat_pmuv3p5), + NEEDS_FEAT(MDCR_EL2_HPMFZO, feat_pmuv3p7), + NEEDS_FEAT(MDCR_EL2_PMSSE, FEAT_PMUv3_SS), + NEEDS_FEAT(MDCR_EL2_E2PB | + MDCR_EL2_TPMS, + FEAT_SPE), + NEEDS_FEAT(MDCR_EL2_HPMFZS, FEAT_SPEv1p2), + NEEDS_FEAT(MDCR_EL2_EnSPM, FEAT_SPMU), + NEEDS_FEAT(MDCR_EL2_EnSTEPOP, FEAT_STEP2), + NEEDS_FEAT(MDCR_EL2_E2TB, FEAT_TRBE), + NEEDS_FEAT(MDCR_EL2_TTRF, FEAT_TRF), + NEEDS_FEAT(MDCR_EL2_TDA | + MDCR_EL2_TDE | + MDCR_EL2_TDRA, + FEAT_AA64EL1), +}; + static void __init check_feat_map(const struct reg_bits_to_feat_map *map, int map_size, u64 res0, const char *str) { @@ -863,6 +1079,14 @@ 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(sctlr2_feat_map, ARRAY_SIZE(sctlr2_feat_map), + SCTLR2_EL1_RES0, "SCTLR2_EL1"); + check_feat_map(tcr2_el2_feat_map, ARRAY_SIZE(tcr2_el2_feat_map), + TCR2_EL2_RES0, "TCR2_EL2"); + check_feat_map(sctlr_el1_feat_map, ARRAY_SIZE(sctlr_el1_feat_map), + SCTLR_EL1_RES0, "SCTLR_EL1"); + check_feat_map(mdcr_el2_feat_map, ARRAY_SIZE(mdcr_el2_feat_map), + MDCR_EL2_RES0, "MDCR_EL2"); } static bool idreg_feat_match(struct kvm *kvm, const struct reg_bits_to_feat_map *map) @@ -1077,6 +1301,31 @@ 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 SCTLR2_EL1: + case SCTLR2_EL2: + *res0 = compute_res0_bits(kvm, sctlr2_feat_map, + ARRAY_SIZE(sctlr2_feat_map), 0, 0); + *res0 |= SCTLR2_EL1_RES0; + *res1 = SCTLR2_EL1_RES1; + 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; + case SCTLR_EL1: + *res0 = compute_res0_bits(kvm, sctlr_el1_feat_map, + ARRAY_SIZE(sctlr_el1_feat_map), 0, 0); + *res0 |= SCTLR_EL1_RES0; + *res1 = SCTLR_EL1_RES1; + break; + case MDCR_EL2: + *res0 = compute_res0_bits(kvm, mdcr_el2_feat_map, + ARRAY_SIZE(mdcr_el2_feat_map), 0, 0); + *res0 |= MDCR_EL2_RES0; + *res1 = MDCR_EL2_RES1; + break; default: WARN_ON_ONCE(1); *res0 = *res1 = 0; |