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https://github.com/qemu/qemu.git
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13956e8244
Mimic the entries for /proc/cpuinfo to what can be seen on the debian porterbox loomis.debian.org. Cc: Song Gao <gaosong@loongson.cn> Cc: Bibo Mao <maobibo@loongson.cn> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Helge Deller <deller@gmx.de>
101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "qemu/osdep.h"
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#include "qemu.h"
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#include "loader.h"
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#include "target_elf.h"
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const char *get_elf_cpu_model(uint32_t eflags)
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{
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return "la464";
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}
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/* See arch/loongarch/include/uapi/asm/hwcap.h */
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enum {
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HWCAP_LOONGARCH_CPUCFG = (1 << 0),
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HWCAP_LOONGARCH_LAM = (1 << 1),
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HWCAP_LOONGARCH_UAL = (1 << 2),
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HWCAP_LOONGARCH_FPU = (1 << 3),
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HWCAP_LOONGARCH_LSX = (1 << 4),
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HWCAP_LOONGARCH_LASX = (1 << 5),
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HWCAP_LOONGARCH_CRC32 = (1 << 6),
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HWCAP_LOONGARCH_COMPLEX = (1 << 7),
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HWCAP_LOONGARCH_CRYPTO = (1 << 8),
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HWCAP_LOONGARCH_LVZ = (1 << 9),
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HWCAP_LOONGARCH_LBT_X86 = (1 << 10),
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HWCAP_LOONGARCH_LBT_ARM = (1 << 11),
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HWCAP_LOONGARCH_LBT_MIPS = (1 << 12),
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};
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const char *elf_hwcap_str(uint32_t bit)
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{
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static const char *hwcap_str[] = {
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[__builtin_ctz(HWCAP_LOONGARCH_CPUCFG )] = "cpucfg",
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[__builtin_ctz(HWCAP_LOONGARCH_LAM )] = "lam",
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[__builtin_ctz(HWCAP_LOONGARCH_UAL )] = "lam_bh",
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[__builtin_ctz(HWCAP_LOONGARCH_FPU )] = "fpu",
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[__builtin_ctz(HWCAP_LOONGARCH_LSX )] = "lsx",
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[__builtin_ctz(HWCAP_LOONGARCH_LASX )] = "lasx",
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[__builtin_ctz(HWCAP_LOONGARCH_CRC32 )] = "crc32",
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[__builtin_ctz(HWCAP_LOONGARCH_COMPLEX )] = "complex",
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[__builtin_ctz(HWCAP_LOONGARCH_CRYPTO )] = "crypto",
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[__builtin_ctz(HWCAP_LOONGARCH_LVZ )] = "lvz",
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[__builtin_ctz(HWCAP_LOONGARCH_LBT_X86 )] = "lbt_x86",
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[__builtin_ctz(HWCAP_LOONGARCH_LBT_ARM )] = "lbt_arm",
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[__builtin_ctz(HWCAP_LOONGARCH_LBT_MIPS)] = "lbt_mips",
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};
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return bit < ARRAY_SIZE(hwcap_str) ? hwcap_str[bit] : NULL;
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}
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abi_ulong get_elf_hwcap(CPUState *cs)
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{
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LoongArchCPU *cpu = LOONGARCH_CPU(cs);
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abi_ulong hwcaps = 0;
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hwcaps |= HWCAP_LOONGARCH_CRC32;
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if (FIELD_EX32(cpu->env.cpucfg[1], CPUCFG1, UAL)) {
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hwcaps |= HWCAP_LOONGARCH_UAL;
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}
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if (FIELD_EX32(cpu->env.cpucfg[2], CPUCFG2, FP)) {
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hwcaps |= HWCAP_LOONGARCH_FPU;
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}
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if (FIELD_EX32(cpu->env.cpucfg[2], CPUCFG2, LAM)) {
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hwcaps |= HWCAP_LOONGARCH_LAM;
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}
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if (FIELD_EX32(cpu->env.cpucfg[2], CPUCFG2, LSX)) {
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hwcaps |= HWCAP_LOONGARCH_LSX;
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}
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if (FIELD_EX32(cpu->env.cpucfg[2], CPUCFG2, LASX)) {
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hwcaps |= HWCAP_LOONGARCH_LASX;
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}
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return hwcaps;
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}
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const char *get_elf_platform(CPUState *cs)
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{
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return "loongarch";
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}
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#define tswapreg(ptr) tswapal(ptr)
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void elf_core_copy_regs(target_elf_gregset_t *r, const CPULoongArchState *env)
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{
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CPUSysState *sys = env_sys((CPULoongArchState *)env);
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r->pt.regs[0] = 0;
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for (int i = 1; i < ARRAY_SIZE(env->gpr); i++) {
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r->pt.regs[i] = tswapreg(env->gpr[i]);
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}
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r->pt.csr_era = tswapreg(env->pc);
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r->pt.csr_badv = tswapreg(sys->CSR_BADV);
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}
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