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linprocfs: Decode more CPU flags in cpuinfo

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Differential revision:	https://reviews.freebsd.org/D35556
MFC after:		2 weeks
This commit is contained in:
Dmitry Chagin 2022-06-29 10:37:30 +03:00
parent 050f5a8405
commit 7ab03740ae
1 changed files with 46 additions and 0 deletions
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46
sys/compat/linprocfs/linprocfs.c
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@ -202,6 +202,7 @@ linprocfs_docpuinfo(PFS_FILL_ARGS)
uint64_t freq;
size_t size;
u_int cache_size[4];
u_int regs[4] = { 0 };
int fqmhz, fqkhz;
int i, j;
@ -264,6 +265,33 @@ linprocfs_docpuinfo(PFS_FILL_ARGS)
/* 28 */ "avx512cd", "sha_ni", "avx512bw", "avx512vl"
};
static char *cpu_stdext_feature2_names[] = {
/* 0 */ "prefetchwt1", "avx512vbmi", "umip", "pku",
/* 4 */ "ospke", "waitpkg", "avx512_vbmi2", "",
/* 8 */ "gfni", "vaes", "vpclmulqdq", "avx512_vnni",
/* 12 */ "avx512_bitalg", "", "avx512_vpopcntdq", "",
/* 16 */ "", "", "", "",
/* 20 */ "", "", "rdpid", "",
/* 24 */ "", "cldemote", "", "movdiri",
/* 28 */ "movdir64b", "enqcmd", "sgx_lc", ""
};
static char *cpu_stdext_feature3_names[] = {
/* 0 */ "", "", "avx512_4vnniw", "avx512_4fmaps",
/* 4 */ "fsrm", "", "", "",
/* 8 */ "avx512_vp2intersect", "", "md_clear", "",
/* 12 */ "", "", "", "",
/* 16 */ "", "", "pconfig", "",
/* 20 */ "", "", "", "",
/* 24 */ "", "", "ibrs", "stibp",
/* 28 */ "flush_l1d", "arch_capabilities", "core_capabilities", "ssbd"
};
static char *cpu_stdext_feature_l1_names[] = {
/* 0 */ "xsaveopt", "xsavec", "xgetbv1", "xsaves",
/* 4 */ "xfd"
};
static char *power_flags[] = {
"ts", "fid", "vid",
"ttp", "tm", "stc",
@ -351,6 +379,24 @@ linprocfs_docpuinfo(PFS_FILL_ARGS)
cpu_stdext_feature_names[j]);
if (tsc_is_invariant)
sbuf_cat(sb, " constant_tsc");
for (j = 0; j < nitems(cpu_stdext_feature2_names); j++)
if (cpu_stdext_feature2 & (1 << j) &&
cpu_stdext_feature2_names[j][0] != '\0')
sbuf_printf(sb, " %s",
cpu_stdext_feature2_names[j]);
for (j = 0; j < nitems(cpu_stdext_feature3_names); j++)
if (cpu_stdext_feature3 & (1 << j) &&
cpu_stdext_feature3_names[j][0] != '\0')
sbuf_printf(sb, " %s",
cpu_stdext_feature3_names[j]);
if ((cpu_feature2 & CPUID2_XSAVE) != 0) {
cpuid_count(0xd, 0x1, regs);
for (j = 0; j < nitems(cpu_stdext_feature_l1_names); j++)
if (regs[0] & (1 << j) &&
cpu_stdext_feature_l1_names[j][0] != '\0')
sbuf_printf(sb, " %s",
cpu_stdext_feature_l1_names[j]);
}
sbuf_cat(sb, "\n");
sbuf_printf(sb,
"bugs\t\t: %s\n"