diff options
Diffstat (limited to 'linux-user/s390x/elfload.c')
| -rw-r--r-- | linux-user/s390x/elfload.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/linux-user/s390x/elfload.c b/linux-user/s390x/elfload.c index 989953a247..79ceaba51d 100644 --- a/linux-user/s390x/elfload.c +++ b/linux-user/s390x/elfload.c @@ -3,9 +3,66 @@ #include "qemu/osdep.h" #include "qemu.h" #include "loader.h" +#include "elf.h" const char *get_elf_cpu_model(uint32_t eflags) { return "qemu"; } + +#define GET_FEATURE(_feat, _hwcap) \ + do { if (s390_has_feat(_feat)) { hwcap |= _hwcap; } } while (0) + +abi_ulong get_elf_hwcap(CPUState *cs) +{ + /* + * Let's assume we always have esan3 and zarch. + * 31-bit processes can use 64-bit registers (high gprs). + */ + uint32_t hwcap = HWCAP_S390_ESAN3 | HWCAP_S390_ZARCH | HWCAP_S390_HIGH_GPRS; + + GET_FEATURE(S390_FEAT_STFLE, HWCAP_S390_STFLE); + GET_FEATURE(S390_FEAT_MSA, HWCAP_S390_MSA); + GET_FEATURE(S390_FEAT_LONG_DISPLACEMENT, HWCAP_S390_LDISP); + GET_FEATURE(S390_FEAT_EXTENDED_IMMEDIATE, HWCAP_S390_EIMM); + if (s390_has_feat(S390_FEAT_EXTENDED_TRANSLATION_3) && + s390_has_feat(S390_FEAT_ETF3_ENH)) { + hwcap |= HWCAP_S390_ETF3EH; + } + GET_FEATURE(S390_FEAT_VECTOR, HWCAP_S390_VXRS); + GET_FEATURE(S390_FEAT_VECTOR_ENH, HWCAP_S390_VXRS_EXT); + GET_FEATURE(S390_FEAT_VECTOR_ENH2, HWCAP_S390_VXRS_EXT2); + + return hwcap; +} + +const char *elf_hwcap_str(uint32_t bit) +{ + static const char *hwcap_str[] = { + [HWCAP_S390_NR_ESAN3] = "esan3", + [HWCAP_S390_NR_ZARCH] = "zarch", + [HWCAP_S390_NR_STFLE] = "stfle", + [HWCAP_S390_NR_MSA] = "msa", + [HWCAP_S390_NR_LDISP] = "ldisp", + [HWCAP_S390_NR_EIMM] = "eimm", + [HWCAP_S390_NR_DFP] = "dfp", + [HWCAP_S390_NR_HPAGE] = "edat", + [HWCAP_S390_NR_ETF3EH] = "etf3eh", + [HWCAP_S390_NR_HIGH_GPRS] = "highgprs", + [HWCAP_S390_NR_TE] = "te", + [HWCAP_S390_NR_VXRS] = "vx", + [HWCAP_S390_NR_VXRS_BCD] = "vxd", + [HWCAP_S390_NR_VXRS_EXT] = "vxe", + [HWCAP_S390_NR_GS] = "gs", + [HWCAP_S390_NR_VXRS_EXT2] = "vxe2", + [HWCAP_S390_NR_VXRS_PDE] = "vxp", + [HWCAP_S390_NR_SORT] = "sort", + [HWCAP_S390_NR_DFLT] = "dflt", + [HWCAP_S390_NR_NNPA] = "nnpa", + [HWCAP_S390_NR_PCI_MIO] = "pcimio", + [HWCAP_S390_NR_SIE] = "sie", + }; + + return bit < ARRAY_SIZE(hwcap_str) ? hwcap_str[bit] : NULL; +} |