diff options
Diffstat (limited to 'arch/arm64/kvm/emulate-nested.c')
| -rw-r--r-- | arch/arm64/kvm/emulate-nested.c | 94 |
1 files changed, 60 insertions, 34 deletions
diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c index c9662f9a345e..1cc606c16416 100644 --- a/arch/arm64/kvm/emulate-nested.c +++ b/arch/arm64/kvm/emulate-nested.c @@ -426,11 +426,13 @@ static const complex_condition_check ccc[] = { * [13:10] enum fgt_group_id (4 bits) * [19:14] bit number in the FGT register (6 bits) * [20] trap polarity (1 bit) - * [62:21] Unused (42 bits) + * [25:21] FG filter (5 bits) + * [62:26] Unused (37 bits) * [63] RES0 - Must be zero, as lost on insertion in the xarray */ #define TC_CGT_BITS 10 #define TC_FGT_BITS 4 +#define TC_FGF_BITS 5 union trap_config { u64 val; @@ -439,7 +441,8 @@ union trap_config { unsigned long fgt:TC_FGT_BITS; /* Fine Grained Trap id */ unsigned long bit:6; /* Bit number */ unsigned long pol:1; /* Polarity */ - unsigned long unused:42; /* Unused, should be zero */ + unsigned long fgf:TC_FGF_BITS; /* Fine Grained Filter */ + unsigned long unused:37; /* Unused, should be zero */ unsigned long mbz:1; /* Must Be Zero */ }; }; @@ -947,7 +950,15 @@ enum fgt_group_id { __NR_FGT_GROUP_IDS__ }; -#define SR_FGT(sr, g, b, p) \ +enum fg_filter_id { + __NO_FGF__, + HCRX_FGTnXS, + + /* Must be last */ + __NR_FG_FILTER_IDS__ +}; + +#define SR_FGF(sr, g, b, p, f) \ { \ .encoding = sr, \ .end = sr, \ @@ -955,10 +966,13 @@ enum fgt_group_id { .fgt = g ## _GROUP, \ .bit = g ## _EL2_ ## b ## _SHIFT, \ .pol = p, \ + .fgf = f, \ }, \ .line = __LINE__, \ } +#define SR_FGT(sr, g, b, p) SR_FGF(sr, g, b, p, __NO_FGF__) + static const struct encoding_to_trap_config encoding_to_fgt[] __initconst = { /* HFGRTR_EL2, HFGWTR_EL2 */ SR_FGT(SYS_TPIDR2_EL0, HFGxTR, nTPIDR2_EL0, 0), @@ -1062,37 +1076,37 @@ static const struct encoding_to_trap_config encoding_to_fgt[] __initconst = { SR_FGT(OP_TLBI_ASIDE1OS, HFGITR, TLBIASIDE1OS, 1), SR_FGT(OP_TLBI_VAE1OS, HFGITR, TLBIVAE1OS, 1), SR_FGT(OP_TLBI_VMALLE1OS, HFGITR, TLBIVMALLE1OS, 1), - /* FIXME: nXS variants must be checked against HCRX_EL2.FGTnXS */ - SR_FGT(OP_TLBI_VAALE1NXS, HFGITR, TLBIVAALE1, 1), - SR_FGT(OP_TLBI_VALE1NXS, HFGITR, TLBIVALE1, 1), - SR_FGT(OP_TLBI_VAAE1NXS, HFGITR, TLBIVAAE1, 1), - SR_FGT(OP_TLBI_ASIDE1NXS, HFGITR, TLBIASIDE1, 1), - SR_FGT(OP_TLBI_VAE1NXS, HFGITR, TLBIVAE1, 1), - SR_FGT(OP_TLBI_VMALLE1NXS, HFGITR, TLBIVMALLE1, 1), - SR_FGT(OP_TLBI_RVAALE1NXS, HFGITR, TLBIRVAALE1, 1), - SR_FGT(OP_TLBI_RVALE1NXS, HFGITR, TLBIRVALE1, 1), - SR_FGT(OP_TLBI_RVAAE1NXS, HFGITR, TLBIRVAAE1, 1), - SR_FGT(OP_TLBI_RVAE1NXS, HFGITR, TLBIRVAE1, 1), - SR_FGT(OP_TLBI_RVAALE1ISNXS, HFGITR, TLBIRVAALE1IS, 1), - SR_FGT(OP_TLBI_RVALE1ISNXS, HFGITR, TLBIRVALE1IS, 1), - SR_FGT(OP_TLBI_RVAAE1ISNXS, HFGITR, TLBIRVAAE1IS, 1), - SR_FGT(OP_TLBI_RVAE1ISNXS, HFGITR, TLBIRVAE1IS, 1), - SR_FGT(OP_TLBI_VAALE1ISNXS, HFGITR, TLBIVAALE1IS, 1), - SR_FGT(OP_TLBI_VALE1ISNXS, HFGITR, TLBIVALE1IS, 1), - SR_FGT(OP_TLBI_VAAE1ISNXS, HFGITR, TLBIVAAE1IS, 1), - SR_FGT(OP_TLBI_ASIDE1ISNXS, HFGITR, TLBIASIDE1IS, 1), - SR_FGT(OP_TLBI_VAE1ISNXS, HFGITR, TLBIVAE1IS, 1), - SR_FGT(OP_TLBI_VMALLE1ISNXS, HFGITR, TLBIVMALLE1IS, 1), - SR_FGT(OP_TLBI_RVAALE1OSNXS, HFGITR, TLBIRVAALE1OS, 1), - SR_FGT(OP_TLBI_RVALE1OSNXS, HFGITR, TLBIRVALE1OS, 1), - SR_FGT(OP_TLBI_RVAAE1OSNXS, HFGITR, TLBIRVAAE1OS, 1), - SR_FGT(OP_TLBI_RVAE1OSNXS, HFGITR, TLBIRVAE1OS, 1), - SR_FGT(OP_TLBI_VAALE1OSNXS, HFGITR, TLBIVAALE1OS, 1), - SR_FGT(OP_TLBI_VALE1OSNXS, HFGITR, TLBIVALE1OS, 1), - SR_FGT(OP_TLBI_VAAE1OSNXS, HFGITR, TLBIVAAE1OS, 1), - SR_FGT(OP_TLBI_ASIDE1OSNXS, HFGITR, TLBIASIDE1OS, 1), - SR_FGT(OP_TLBI_VAE1OSNXS, HFGITR, TLBIVAE1OS, 1), - SR_FGT(OP_TLBI_VMALLE1OSNXS, HFGITR, TLBIVMALLE1OS, 1), + /* nXS variants must be checked against HCRX_EL2.FGTnXS */ + SR_FGF(OP_TLBI_VAALE1NXS, HFGITR, TLBIVAALE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VALE1NXS, HFGITR, TLBIVALE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VAAE1NXS, HFGITR, TLBIVAAE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_ASIDE1NXS, HFGITR, TLBIASIDE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VAE1NXS, HFGITR, TLBIVAE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VMALLE1NXS, HFGITR, TLBIVMALLE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVAALE1NXS, HFGITR, TLBIRVAALE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVALE1NXS, HFGITR, TLBIRVALE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVAAE1NXS, HFGITR, TLBIRVAAE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVAE1NXS, HFGITR, TLBIRVAE1, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVAALE1ISNXS, HFGITR, TLBIRVAALE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVALE1ISNXS, HFGITR, TLBIRVALE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVAAE1ISNXS, HFGITR, TLBIRVAAE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVAE1ISNXS, HFGITR, TLBIRVAE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VAALE1ISNXS, HFGITR, TLBIVAALE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VALE1ISNXS, HFGITR, TLBIVALE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VAAE1ISNXS, HFGITR, TLBIVAAE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_ASIDE1ISNXS, HFGITR, TLBIASIDE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VAE1ISNXS, HFGITR, TLBIVAE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VMALLE1ISNXS, HFGITR, TLBIVMALLE1IS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVAALE1OSNXS, HFGITR, TLBIRVAALE1OS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVALE1OSNXS, HFGITR, TLBIRVALE1OS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVAAE1OSNXS, HFGITR, TLBIRVAAE1OS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_RVAE1OSNXS, HFGITR, TLBIRVAE1OS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VAALE1OSNXS, HFGITR, TLBIVAALE1OS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VALE1OSNXS, HFGITR, TLBIVALE1OS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VAAE1OSNXS, HFGITR, TLBIVAAE1OS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_ASIDE1OSNXS, HFGITR, TLBIASIDE1OS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VAE1OSNXS, HFGITR, TLBIVAE1OS, 1, HCRX_FGTnXS), + SR_FGF(OP_TLBI_VMALLE1OSNXS, HFGITR, TLBIVMALLE1OS, 1, HCRX_FGTnXS), SR_FGT(OP_AT_S1E1WP, HFGITR, ATS1E1WP, 1), SR_FGT(OP_AT_S1E1RP, HFGITR, ATS1E1RP, 1), SR_FGT(OP_AT_S1E0W, HFGITR, ATS1E0W, 1), @@ -1622,6 +1636,7 @@ int __init populate_nv_trap_config(void) BUILD_BUG_ON(sizeof(union trap_config) != sizeof(void *)); BUILD_BUG_ON(__NR_CGT_GROUP_IDS__ > BIT(TC_CGT_BITS)); BUILD_BUG_ON(__NR_FGT_GROUP_IDS__ > BIT(TC_FGT_BITS)); + BUILD_BUG_ON(__NR_FG_FILTER_IDS__ > BIT(TC_FGF_BITS)); for (int i = 0; i < ARRAY_SIZE(encoding_to_cgt); i++) { const struct encoding_to_trap_config *cgt = &encoding_to_cgt[i]; @@ -1812,6 +1827,17 @@ bool __check_nv_sr_forward(struct kvm_vcpu *vcpu) case HFGITR_GROUP: val = sanitised_sys_reg(vcpu, HFGITR_EL2); + switch (tc.fgf) { + u64 tmp; + + case __NO_FGF__: + break; + + case HCRX_FGTnXS: + tmp = sanitised_sys_reg(vcpu, HCRX_EL2); + if (tmp & HCRX_EL2_FGTnXS) + tc.fgt = __NO_FGT_GROUP__; + } break; case __NR_FGT_GROUP_IDS__: |