diff options
Diffstat (limited to 'linux-user/ppc/elfload.c')
| -rw-r--r-- | linux-user/ppc/elfload.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/linux-user/ppc/elfload.c b/linux-user/ppc/elfload.c new file mode 100644 index 0000000..0d54da9 --- /dev/null +++ b/linux-user/ppc/elfload.c @@ -0,0 +1,146 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include "qemu/osdep.h" +#include "qemu.h" +#include "loader.h" +#include "target_elf.h" + + +const char *get_elf_cpu_model(uint32_t eflags) +{ +#ifdef TARGET_PPC64 + return "POWER9"; +#else + return "750"; +#endif +} + +/* + * Feature masks for the Aux Vector Hardware Capabilities (AT_HWCAP). + * See arch/powerpc/include/asm/cputable.h. + */ +enum { + QEMU_PPC_FEATURE_32 = 0x80000000, + QEMU_PPC_FEATURE_64 = 0x40000000, + QEMU_PPC_FEATURE_601_INSTR = 0x20000000, + QEMU_PPC_FEATURE_HAS_ALTIVEC = 0x10000000, + QEMU_PPC_FEATURE_HAS_FPU = 0x08000000, + QEMU_PPC_FEATURE_HAS_MMU = 0x04000000, + QEMU_PPC_FEATURE_HAS_4xxMAC = 0x02000000, + QEMU_PPC_FEATURE_UNIFIED_CACHE = 0x01000000, + QEMU_PPC_FEATURE_HAS_SPE = 0x00800000, + QEMU_PPC_FEATURE_HAS_EFP_SINGLE = 0x00400000, + QEMU_PPC_FEATURE_HAS_EFP_DOUBLE = 0x00200000, + QEMU_PPC_FEATURE_NO_TB = 0x00100000, + QEMU_PPC_FEATURE_POWER4 = 0x00080000, + QEMU_PPC_FEATURE_POWER5 = 0x00040000, + QEMU_PPC_FEATURE_POWER5_PLUS = 0x00020000, + QEMU_PPC_FEATURE_CELL = 0x00010000, + QEMU_PPC_FEATURE_BOOKE = 0x00008000, + QEMU_PPC_FEATURE_SMT = 0x00004000, + QEMU_PPC_FEATURE_ICACHE_SNOOP = 0x00002000, + QEMU_PPC_FEATURE_ARCH_2_05 = 0x00001000, + QEMU_PPC_FEATURE_PA6T = 0x00000800, + QEMU_PPC_FEATURE_HAS_DFP = 0x00000400, + QEMU_PPC_FEATURE_POWER6_EXT = 0x00000200, + QEMU_PPC_FEATURE_ARCH_2_06 = 0x00000100, + QEMU_PPC_FEATURE_HAS_VSX = 0x00000080, + QEMU_PPC_FEATURE_PSERIES_PERFMON_COMPAT = 0x00000040, + + QEMU_PPC_FEATURE_TRUE_LE = 0x00000002, + QEMU_PPC_FEATURE_PPC_LE = 0x00000001, + + /* Feature definitions in AT_HWCAP2. */ + QEMU_PPC_FEATURE2_ARCH_2_07 = 0x80000000, /* ISA 2.07 */ + QEMU_PPC_FEATURE2_HAS_HTM = 0x40000000, /* Hardware Transactional Memory */ + QEMU_PPC_FEATURE2_HAS_DSCR = 0x20000000, /* Data Stream Control Register */ + QEMU_PPC_FEATURE2_HAS_EBB = 0x10000000, /* Event Base Branching */ + QEMU_PPC_FEATURE2_HAS_ISEL = 0x08000000, /* Integer Select */ + QEMU_PPC_FEATURE2_HAS_TAR = 0x04000000, /* Target Address Register */ + QEMU_PPC_FEATURE2_VEC_CRYPTO = 0x02000000, + QEMU_PPC_FEATURE2_HTM_NOSC = 0x01000000, + QEMU_PPC_FEATURE2_ARCH_3_00 = 0x00800000, /* ISA 3.00 */ + QEMU_PPC_FEATURE2_HAS_IEEE128 = 0x00400000, /* VSX IEEE Bin Float 128-bit */ + QEMU_PPC_FEATURE2_DARN = 0x00200000, /* darn random number insn */ + QEMU_PPC_FEATURE2_SCV = 0x00100000, /* scv syscall */ + QEMU_PPC_FEATURE2_HTM_NO_SUSPEND = 0x00080000, /* TM w/o suspended state */ + QEMU_PPC_FEATURE2_ARCH_3_1 = 0x00040000, /* ISA 3.1 */ + QEMU_PPC_FEATURE2_MMA = 0x00020000, /* Matrix-Multiply Assist */ +}; + +abi_ulong get_elf_hwcap(CPUState *cs) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + uint32_t features = 0; + + /* + * We don't have to be terribly complete here; the high points are + * Altivec/FP/SPE support. Anything else is just a bonus. + */ +#define GET_FEATURE(flag, feature) \ + do { if (cpu->env.insns_flags & flag) { features |= feature; } } while (0) +#define GET_FEATURE2(flags, feature) \ + do { \ + if ((cpu->env.insns_flags2 & flags) == flags) { \ + features |= feature; \ + } \ + } while (0) + GET_FEATURE(PPC_64B, QEMU_PPC_FEATURE_64); + GET_FEATURE(PPC_FLOAT, QEMU_PPC_FEATURE_HAS_FPU); + GET_FEATURE(PPC_ALTIVEC, QEMU_PPC_FEATURE_HAS_ALTIVEC); + GET_FEATURE(PPC_SPE, QEMU_PPC_FEATURE_HAS_SPE); + GET_FEATURE(PPC_SPE_SINGLE, QEMU_PPC_FEATURE_HAS_EFP_SINGLE); + GET_FEATURE(PPC_SPE_DOUBLE, QEMU_PPC_FEATURE_HAS_EFP_DOUBLE); + GET_FEATURE(PPC_BOOKE, QEMU_PPC_FEATURE_BOOKE); + GET_FEATURE(PPC_405_MAC, QEMU_PPC_FEATURE_HAS_4xxMAC); + GET_FEATURE2(PPC2_DFP, QEMU_PPC_FEATURE_HAS_DFP); + GET_FEATURE2(PPC2_VSX, QEMU_PPC_FEATURE_HAS_VSX); + GET_FEATURE2((PPC2_PERM_ISA206 | PPC2_DIVE_ISA206 | PPC2_ATOMIC_ISA206 | + PPC2_FP_CVT_ISA206 | PPC2_FP_TST_ISA206), + QEMU_PPC_FEATURE_ARCH_2_06); + +#undef GET_FEATURE +#undef GET_FEATURE2 + + return features; +} + +abi_ulong get_elf_hwcap2(CPUState *cs) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + uint32_t features = 0; + +#define GET_FEATURE(flag, feature) \ + do { if (cpu->env.insns_flags & flag) { features |= feature; } } while (0) +#define GET_FEATURE2(flag, feature) \ + do { if (cpu->env.insns_flags2 & flag) { features |= feature; } } while (0) + + GET_FEATURE(PPC_ISEL, QEMU_PPC_FEATURE2_HAS_ISEL); + GET_FEATURE2(PPC2_BCTAR_ISA207, QEMU_PPC_FEATURE2_HAS_TAR); + GET_FEATURE2((PPC2_BCTAR_ISA207 | PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 | + PPC2_ISA207S), QEMU_PPC_FEATURE2_ARCH_2_07 | + QEMU_PPC_FEATURE2_VEC_CRYPTO); + GET_FEATURE2(PPC2_ISA300, QEMU_PPC_FEATURE2_ARCH_3_00 | + QEMU_PPC_FEATURE2_DARN | QEMU_PPC_FEATURE2_HAS_IEEE128); + GET_FEATURE2(PPC2_ISA310, QEMU_PPC_FEATURE2_ARCH_3_1 | + QEMU_PPC_FEATURE2_MMA); + +#undef GET_FEATURE +#undef GET_FEATURE2 + + return features; +} + +void elf_core_copy_regs(target_elf_gregset_t *r, const CPUPPCState *env) +{ + for (int i = 0; i < ARRAY_SIZE(env->gpr); i++) { + r->pt.gpr[i] = tswapal(env->gpr[i]); + } + + r->pt.nip = tswapal(env->nip); + r->pt.msr = tswapal(env->msr); + r->pt.ctr = tswapal(env->ctr); + r->pt.link = tswapal(env->lr); + r->pt.xer = tswapal(cpu_read_xer(env)); + r->pt.ccr = tswapal(ppc_get_cr(env)); +} |