diff options
Diffstat (limited to 'target/arm/cpregs.h')
| -rw-r--r-- | target/arm/cpregs.h | 124 |
1 files changed, 88 insertions, 36 deletions
diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index cc7c543..c1a7ae3 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -23,6 +23,7 @@ #include "hw/registerfields.h" #include "target/arm/kvm-consts.h" +#include "cpu.h" /* * ARMCPRegInfo type field bits: @@ -126,6 +127,14 @@ enum { * equivalent EL1 register when FEAT_NV2 is enabled. */ ARM_CP_NV2_REDIRECT = 1 << 20, + /* + * Flag: this is a TLBI insn which (when FEAT_XS is present) also has + * an NXS variant at the same encoding except that crn is 1 greater, + * so when registering this cpreg automatically also register one + * for the TLBI NXS variant. (For QEMU the NXS variant behaves + * identically to the normal one, other than FGT trapping handling.) + */ + ARM_CP_ADD_TLBI_NXS = 1 << 21, }; /* @@ -320,20 +329,23 @@ typedef enum CPAccessResult { * Access fails due to a configurable trap or enable which would * result in a categorized exception syndrome giving information about * the failing instruction (ie syndrome category 0x3, 0x4, 0x5, 0x6, - * 0xc or 0x18). + * 0xc or 0x18). These traps are always to a specified target EL, + * never to the usual target EL. */ - CP_ACCESS_TRAP = (1 << 2), - CP_ACCESS_TRAP_EL2 = CP_ACCESS_TRAP | 2, - CP_ACCESS_TRAP_EL3 = CP_ACCESS_TRAP | 3, + CP_ACCESS_TRAP_BIT = (1 << 2), + CP_ACCESS_TRAP_EL1 = CP_ACCESS_TRAP_BIT | 1, + CP_ACCESS_TRAP_EL2 = CP_ACCESS_TRAP_BIT | 2, + CP_ACCESS_TRAP_EL3 = CP_ACCESS_TRAP_BIT | 3, /* - * Access fails and results in an exception syndrome 0x0 ("uncategorized"). + * Access fails with UNDEFINED, i.e. an exception syndrome 0x0 + * ("uncategorized"), which is what an undefined insn produces. * Note that this is not a catch-all case -- the set of cases which may * result in this failure is specifically defined by the architecture. * This trap is always to the usual target EL, never directly to a * specified target EL. */ - CP_ACCESS_TRAP_UNCATEGORIZED = (2 << 2), + CP_ACCESS_UNDEFINED = (2 << 2), } CPAccessResult; /* Indexes into fgt_read[] */ @@ -621,6 +633,7 @@ FIELD(HDFGWTR_EL2, NBRBCTL, 60, 1) FIELD(HDFGWTR_EL2, NBRBDATA, 61, 1) FIELD(HDFGWTR_EL2, NPMSNEVFR_EL1, 62, 1) +FIELD(FGT, NXS, 13, 1) /* Honour HCR_EL2.FGTnXS to suppress FGT */ /* Which fine-grained trap bit register to check, if any */ FIELD(FGT, TYPE, 10, 3) FIELD(FGT, REV, 9, 1) /* Is bit sense reversed? */ @@ -639,6 +652,17 @@ FIELD(FGT, BITPOS, 0, 6) /* Bit position within the uint64_t */ #define DO_REV_BIT(REG, BITNAME) \ FGT_##BITNAME = FGT_##REG | FGT_REV | R_##REG##_EL2_##BITNAME##_SHIFT +/* + * The FGT bits for TLBI maintenance instructions accessible at EL1 always + * affect the "normal" TLBI insns; they affect the corresponding TLBI insns + * with the nXS qualifier only if HCRX_EL2.FGTnXS is 0. We define e.g. + * FGT_TLBIVAE1 to use for the normal insn, and FGT_TLBIVAE1NXS to use + * for the nXS qualified insn. + */ +#define DO_TLBINXS_BIT(REG, BITNAME) \ + FGT_##BITNAME = FGT_##REG | R_##REG##_EL2_##BITNAME##_SHIFT, \ + FGT_##BITNAME##NXS = FGT_##BITNAME | R_FGT_NXS_MASK + typedef enum FGTBit { /* * These bits tell us which register arrays to use: @@ -772,36 +796,36 @@ typedef enum FGTBit { DO_BIT(HFGITR, ATS1E0W), DO_BIT(HFGITR, ATS1E1RP), DO_BIT(HFGITR, ATS1E1WP), - DO_BIT(HFGITR, TLBIVMALLE1OS), - DO_BIT(HFGITR, TLBIVAE1OS), - DO_BIT(HFGITR, TLBIASIDE1OS), - DO_BIT(HFGITR, TLBIVAAE1OS), - DO_BIT(HFGITR, TLBIVALE1OS), - DO_BIT(HFGITR, TLBIVAALE1OS), - DO_BIT(HFGITR, TLBIRVAE1OS), - DO_BIT(HFGITR, TLBIRVAAE1OS), - DO_BIT(HFGITR, TLBIRVALE1OS), - DO_BIT(HFGITR, TLBIRVAALE1OS), - DO_BIT(HFGITR, TLBIVMALLE1IS), - DO_BIT(HFGITR, TLBIVAE1IS), - DO_BIT(HFGITR, TLBIASIDE1IS), - DO_BIT(HFGITR, TLBIVAAE1IS), - DO_BIT(HFGITR, TLBIVALE1IS), - DO_BIT(HFGITR, TLBIVAALE1IS), - DO_BIT(HFGITR, TLBIRVAE1IS), - DO_BIT(HFGITR, TLBIRVAAE1IS), - DO_BIT(HFGITR, TLBIRVALE1IS), - DO_BIT(HFGITR, TLBIRVAALE1IS), - DO_BIT(HFGITR, TLBIRVAE1), - DO_BIT(HFGITR, TLBIRVAAE1), - DO_BIT(HFGITR, TLBIRVALE1), - DO_BIT(HFGITR, TLBIRVAALE1), - DO_BIT(HFGITR, TLBIVMALLE1), - DO_BIT(HFGITR, TLBIVAE1), - DO_BIT(HFGITR, TLBIASIDE1), - DO_BIT(HFGITR, TLBIVAAE1), - DO_BIT(HFGITR, TLBIVALE1), - DO_BIT(HFGITR, TLBIVAALE1), + DO_TLBINXS_BIT(HFGITR, TLBIVMALLE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIVAE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIASIDE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIVAAE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIVALE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIVAALE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIRVAE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIRVAAE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIRVALE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIRVAALE1OS), + DO_TLBINXS_BIT(HFGITR, TLBIVMALLE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIVAE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIASIDE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIVAAE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIVALE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIVAALE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIRVAE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIRVAAE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIRVALE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIRVAALE1IS), + DO_TLBINXS_BIT(HFGITR, TLBIRVAE1), + DO_TLBINXS_BIT(HFGITR, TLBIRVAAE1), + DO_TLBINXS_BIT(HFGITR, TLBIRVALE1), + DO_TLBINXS_BIT(HFGITR, TLBIRVAALE1), + DO_TLBINXS_BIT(HFGITR, TLBIVMALLE1), + DO_TLBINXS_BIT(HFGITR, TLBIVAE1), + DO_TLBINXS_BIT(HFGITR, TLBIASIDE1), + DO_TLBINXS_BIT(HFGITR, TLBIVAAE1), + DO_TLBINXS_BIT(HFGITR, TLBIVALE1), + DO_TLBINXS_BIT(HFGITR, TLBIVAALE1), DO_BIT(HFGITR, CFPRCTX), DO_BIT(HFGITR, DVPRCTX), DO_BIT(HFGITR, CPPRCTX), @@ -1134,4 +1158,32 @@ static inline bool arm_cpreg_traps_in_nv(const ARMCPRegInfo *ri) return ri->opc1 == 4 || ri->opc1 == 5; } +/* Macros for accessing a specified CP register bank */ +#define A32_BANKED_REG_GET(_env, _regname, _secure) \ + ((_secure) ? (_env)->cp15._regname##_s : (_env)->cp15._regname##_ns) + +#define A32_BANKED_REG_SET(_env, _regname, _secure, _val) \ + do { \ + if (_secure) { \ + (_env)->cp15._regname##_s = (_val); \ + } else { \ + (_env)->cp15._regname##_ns = (_val); \ + } \ + } while (0) + +/* + * Macros for automatically accessing a specific CP register bank depending on + * the current secure state of the system. These macros are not intended for + * supporting instruction translation reads/writes as these are dependent + * solely on the SCR.NS bit and not the mode. + */ +#define A32_BANKED_CURRENT_REG_GET(_env, _regname) \ + A32_BANKED_REG_GET((_env), _regname, \ + (arm_is_secure(_env) && !arm_el_is_aa64((_env), 3))) + +#define A32_BANKED_CURRENT_REG_SET(_env, _regname, _val) \ + A32_BANKED_REG_SET((_env), _regname, \ + (arm_is_secure(_env) && !arm_el_is_aa64((_env), 3)), \ + (_val)) + #endif /* TARGET_ARM_CPREGS_H */ |