* cpuid.h: Add missing copyright header. Fix formatting. Use uint32_t
instead of unsigned throughout. Change functions to static inline and always inline. (cpuid): Add parameter to set ecx, allowing to request extended CPUID info. * fhandler_proc.cc (format_proc_cpuinfo): Use uint32_t instead of unsigned throughout. Add fake decimal places to MHz info. Handle more feature flags. * fhandler_random.cc (fhandler_dev_random::write): Allow up to 4K input to add entropy. * syscalls.cc: Drop including cpuid.h.
This commit is contained in:
Corinna Vinschen
@@ -1,3 +1,17 @@
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2014-08-11 Corinna Vinschen <corinna@vinschen.de>
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* cpuid.h: Add missing copyright header. Fix formatting. Use uint32_t
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instead of unsigned throughout. Change functions to static inline and
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always inline.
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(cpuid): Add parameter to set ecx, allowing to request extended CPUID
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info.
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* fhandler_proc.cc (format_proc_cpuinfo): Use uint32_t instead of
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unsigned throughout. Add fake decimal places to MHz info. Handle more
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feature flags.
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* fhandler_random.cc (fhandler_dev_random::write): Allow up to 4K
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input to add entropy.
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* syscalls.cc: Drop including cpuid.h.
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2014-08-07 Yaakov Selkowitz <yselkowi@redhat.com>
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* common.din (__cxa_finalize): Export.
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@@ -1,54 +1,64 @@
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/* cpuid.h: Define cpuid instruction
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Copyright 2003, 2012, 2014 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef CPUID_H
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#define CPUID_H
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extern inline void
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cpuid (unsigned *a, unsigned *b, unsigned *c, unsigned *d, unsigned in)
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static inline void __attribute ((always_inline))
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cpuid (uint32_t *a, uint32_t *b, uint32_t *c, uint32_t *d, uint32_t ain,
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uint32_t cin = 0)
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{
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asm ("cpuid"
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: "=a" (*a),
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"=b" (*b),
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"=c" (*c),
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"=d" (*d)
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: "a" (in));
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asm volatile ("cpuid"
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: "=a" (*a), "=b" (*b), "=c" (*c), "=d" (*d)
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: "a" (ain), "c" (cin));
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}
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#ifdef __x86_64__
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extern inline bool
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can_set_flag (register unsigned long flag)
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static inline bool __attribute ((always_inline))
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can_set_flag (register uint32_t long flag)
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{
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register unsigned long r1, r2;
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asm("pushfq\n"
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"popq %0\n"
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"movq %0, %1\n"
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"xorq %2, %0\n"
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"pushq %0\n"
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"popfq\n"
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"pushfq\n"
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"popq %0\n"
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"pushq %1\n"
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"popfq\n"
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: "=&r" (r1), "=&r" (r2)
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: "ir" (flag)
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register uint32_t long r1, r2;
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asm volatile ("pushfq\n"
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"popq %0\n"
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"movq %0, %1\n"
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"xorq %2, %0\n"
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"pushq %0\n"
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"popfq\n"
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"pushfq\n"
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"popq %0\n"
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"pushq %1\n"
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"popfq\n"
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: "=&r" (r1), "=&r" (r2)
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: "ir" (flag)
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);
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return ((r1 ^ r2) & flag) != 0;
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}
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#else
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extern inline bool
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can_set_flag (register unsigned flag)
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static inline bool __attribute ((always_inline))
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can_set_flag (register uint32_t flag)
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{
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register unsigned r1, r2;
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asm("pushfl\n"
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"popl %0\n"
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"movl %0, %1\n"
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"xorl %2, %0\n"
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"pushl %0\n"
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"popfl\n"
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"pushfl\n"
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"popl %0\n"
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"pushl %1\n"
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"popfl\n"
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: "=&r" (r1), "=&r" (r2)
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: "ir" (flag)
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register uint32_t r1, r2;
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asm volatile ("pushfl\n"
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"popl %0\n"
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"movl %0, %1\n"
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"xorl %2, %0\n"
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"pushl %0\n"
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"popfl\n"
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"pushfl\n"
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"popl %0\n"
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"pushl %1\n"
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"popfl\n"
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: "=&r" (r1), "=&r" (r2)
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: "ir" (flag)
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);
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return ((r1 ^ r2) & flag) != 0;
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}
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@@ -601,7 +601,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
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char s[BUFSIZE];
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WCHAR w[BUFSIZE / sizeof (WCHAR)];
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DWORD d;
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unsigned m[13];
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uint32_t m[13];
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} in_buf;
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tmp_pathbuf tp;
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@@ -698,7 +698,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
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RtlQueryRegistryValues (RTL_REGISTRY_ABSOLUTE, cpu_key, tab,
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NULL, NULL);
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bufptr += __small_sprintf (bufptr, "processor\t: %d\n", cpu_number);
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unsigned maxf, vendor_id[4], unused;
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uint32_t maxf, vendor_id[4], unused;
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cpuid (&maxf, &vendor_id[0], &vendor_id[2], &vendor_id[1], 0);
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maxf &= 0xffff;
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vendor_id[3] = 0;
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@@ -714,23 +714,23 @@ format_proc_cpuinfo (void *, char *&destbuf)
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(char *)vendor_id);
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if (maxf >= 1)
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{
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unsigned features2, features1, extra_info, cpuid_sig;
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uint32_t features2, features1, extra_info, cpuid_sig;
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cpuid (&cpuid_sig, &extra_info, &features2, &features1, 1);
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/* unsigned extended_family = (cpuid_sig & 0x0ff00000) >> 20,
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/* uint32_t extended_family = (cpuid_sig & 0x0ff00000) >> 20,
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extended_model = (cpuid_sig & 0x000f0000) >> 16,
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type = (cpuid_sig & 0x00003000) >> 12; */
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unsigned family = (cpuid_sig & 0x00000f00) >> 8,
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uint32_t family = (cpuid_sig & 0x00000f00) >> 8,
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model = (cpuid_sig & 0x000000f0) >> 4,
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stepping = cpuid_sig & 0x0000000f;
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/* Not printed on Linux */
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//unsigned brand_id = extra_info & 0x0000000f;
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//unsigned cpu_count = (extra_info & 0x00ff0000) >> 16;
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unsigned apic_id = (extra_info & 0xff000000) >> 24;
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//uint32_t brand_id = extra_info & 0x0000000f;
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//uint32_t cpu_count = (extra_info & 0x00ff0000) >> 16;
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uint32_t apic_id = (extra_info & 0xff000000) >> 24;
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if (family == 15)
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family += (cpuid_sig >> 20) & 0xff;
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if (family >= 6)
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model += ((cpuid_sig >> 16) & 0x0f) << 4;
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unsigned maxe = 0;
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uint32_t maxe = 0;
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cpuid (&maxe, &unused, &unused, &unused, 0x80000000);
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if (maxe >= 0x80000004)
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{
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@@ -757,7 +757,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
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cache_alignment = clflush * 2;
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if (maxe >= 0x80000005) /* L1 Cache and TLB Identifiers. */
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{
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unsigned data_cache, inst_cache;
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uint32_t data_cache, inst_cache;
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cpuid (&unused, &unused, &data_cache, &inst_cache,
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0x80000005);
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@@ -766,7 +766,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
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}
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if (maxe >= 0x80000006) /* L2 Cache and L2 TLB Identifiers. */
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{
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unsigned tlb, l2;
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uint32_t tlb, l2;
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cpuid (&unused, &tlb, &l2, &unused, 0x80000006);
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cache_size = l2 >> 16;
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@@ -776,7 +776,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
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"model\t\t: %d\n"
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"model name\t: %s\n"
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"stepping\t: %d\n"
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"cpu MHz\t\t: %d\n",
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"cpu MHz\t\t: %d.000\n",
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family,
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model,
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in_buf.s + strspn (in_buf.s, " "),
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@@ -789,7 +789,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
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/* Recognize multi-core CPUs. */
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if (is_amd && maxe >= 0x80000008)
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{
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unsigned core_info;
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uint32_t core_info;
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cpuid (&unused, &unused, &core_info, &unused, 0x80000008);
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int max_cores = 1 + (core_info & 0xff);
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@@ -888,28 +888,27 @@ format_proc_cpuinfo (void *, char *&destbuf)
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if (is_amd && maxe >= 0x80000001)
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{
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unsigned features;
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cpuid (&unused, &unused, &unused, &features, 0x80000001);
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cpuid (&unused, &unused, &unused, &features1, 0x80000001);
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if (features & (1 << 11))
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if (features1 & (1 << 11))
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print (" syscall");
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if (features & (1 << 19)) /* Huh? Not in AMD64 specs. */
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if (features1 & (1 << 19)) /* Huh? Not in AMD64 specs. */
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print (" mp");
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if (features & (1 << 20))
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if (features1 & (1 << 20))
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print (" nx");
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if (features & (1 << 22))
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if (features1 & (1 << 22))
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print (" mmxext");
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if (features & (1 << 25))
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if (features1 & (1 << 25))
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print (" fxsr_opt");
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if (features & (1 << 26))
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if (features1 & (1 << 26))
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print (" pdpe1gb");
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if (features & (1 << 27))
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if (features1 & (1 << 27))
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print (" rdtscp");
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if (features & (1 << 29))
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if (features1 & (1 << 29))
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print (" lm");
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if (features & (1 << 30)) /* 31th bit is on. */
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if (features1 & (1 << 30)) /* 31th bit is on. */
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print (" 3dnowext");
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if (features & (1 << 31)) /* 32th bit (highest) is on. */
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if (features1 & (1 << 31)) /* 32th bit (highest) is on. */
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print (" 3dnow");
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}
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@@ -966,48 +965,136 @@ format_proc_cpuinfo (void *, char *&destbuf)
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print (" osxsave");
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if (features2 & (1 << 28))
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print (" avx");
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if (features2 & (1 << 29))
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print (" f16c");
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if (features2 & (1 << 30))
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print (" rdrand");
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if (features2 & (1 << 31))
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print (" hypervisor");
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}
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if (maxe >= 0x80000001)
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{
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unsigned features;
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cpuid (&unused, &unused, &features, &unused, 0x80000001);
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cpuid (&unused, &unused, &features1, &unused, 0x80000001);
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if (features & (1 << 0))
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if (features1 & (1 << 0))
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print (" lahf_lm");
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if (features & (1 << 1))
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if (features1 & (1 << 1))
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print (" cmp_legacy");
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if (is_amd)
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{
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if (features & (1 << 2))
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if (features1 & (1 << 2))
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print (" svm");
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if (features & (1 << 3))
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if (features1 & (1 << 3))
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print (" extapic");
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if (features & (1 << 4))
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if (features1 & (1 << 4))
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print (" cr8_legacy");
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if (features & (1 << 5))
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if (features1 & (1 << 5))
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print (" abm");
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if (features & (1 << 6))
|
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if (features1 & (1 << 6))
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print (" sse4a");
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if (features & (1 << 7))
|
||||
if (features1 & (1 << 7))
|
||||
print (" misalignsse");
|
||||
if (features & (1 << 8))
|
||||
if (features1 & (1 << 8))
|
||||
print (" 3dnowprefetch");
|
||||
if (features & (1 << 9))
|
||||
if (features1 & (1 << 9))
|
||||
print (" osvw");
|
||||
}
|
||||
if (features & (1 << 10))
|
||||
if (features1 & (1 << 10))
|
||||
print (" ibs");
|
||||
if (is_amd)
|
||||
{
|
||||
if (features & (1 << 11))
|
||||
if (features1 & (1 << 11))
|
||||
print (" sse5");
|
||||
if (features & (1 << 12))
|
||||
if (features1 & (1 << 12))
|
||||
print (" skinit");
|
||||
if (features & (1 << 13))
|
||||
if (features1 & (1 << 13))
|
||||
print (" wdt");
|
||||
if (features1 & (1 << 15))
|
||||
print (" lwp");
|
||||
if (features1 & (1 << 16))
|
||||
print (" fma4");
|
||||
if (features1 & (1 << 17))
|
||||
print (" tce");
|
||||
if (features1 & (1 << 19))
|
||||
print (" nodeid_msr");
|
||||
if (features1 & (1 << 21))
|
||||
print (" tbm");
|
||||
if (features1 & (1 << 22))
|
||||
print (" topoext");
|
||||
if (features1 & (1 << 23))
|
||||
print (" perfctr_core");
|
||||
if (features1 & (1 << 24))
|
||||
print (" perfctr_nb");
|
||||
if (features1 & (1 << 28))
|
||||
print (" perfctr_l2");
|
||||
}
|
||||
}
|
||||
if (is_intel) /* features scattered in various CPUID levels. */
|
||||
{
|
||||
cpuid (&features1, &unused, &features2, &unused, 0x06);
|
||||
|
||||
if (features1 & (1 << 1))
|
||||
print (" ida");
|
||||
if (features1 & (1 << 2))
|
||||
print (" arat");
|
||||
if (features2 & (1 << 3))
|
||||
print (" epb");
|
||||
|
||||
cpuid (&features2, &unused, &unused, &unused, 0x0d, 1);
|
||||
if (features2 & (1 << 0))
|
||||
print (" xsaveopt");
|
||||
|
||||
if (features1 & (1 << 4))
|
||||
print (" pln");
|
||||
if (features1 & (1 << 6))
|
||||
print (" pts");
|
||||
if (features1 & (1 << 0))
|
||||
print (" dtherm");
|
||||
}
|
||||
if (is_intel) /* Extended feature flags */
|
||||
{
|
||||
cpuid (&unused, &features1, &unused, &unused, 0x07, 0);
|
||||
|
||||
if (features1 & (1 << 0))
|
||||
print (" fsgsbase");
|
||||
if (features1 & (1 << 1))
|
||||
print (" tsc_adjust");
|
||||
if (features1 & (1 << 3))
|
||||
print (" bmi1");
|
||||
if (features1 & (1 << 4))
|
||||
print (" hle");
|
||||
if (features1 & (1 << 5))
|
||||
print (" avx2");
|
||||
if (features1 & (1 << 7))
|
||||
print (" smep");
|
||||
if (features1 & (1 << 8))
|
||||
print (" bmi2");
|
||||
if (features1 & (1 << 9))
|
||||
print (" erms");
|
||||
if (features1 & (1 << 10))
|
||||
print (" invpcid");
|
||||
if (features1 & (1 << 11))
|
||||
print (" rtm");
|
||||
if (features1 & (1 << 14))
|
||||
print (" mpx");
|
||||
if (features1 & (1 << 16))
|
||||
print (" avx512f");
|
||||
if (features1 & (1 << 18))
|
||||
print (" rdseed");
|
||||
if (features1 & (1 << 19))
|
||||
print (" adx");
|
||||
if (features1 & (1 << 20))
|
||||
print (" smap");
|
||||
if (features1 & (1 << 23))
|
||||
print (" clflushopt");
|
||||
if (features1 & (1 << 26))
|
||||
print (" avx512pf");
|
||||
if (features1 & (1 << 27))
|
||||
print (" avx512er");
|
||||
if (features1 & (1 << 28))
|
||||
print (" avx512cd");
|
||||
}
|
||||
|
||||
print ("\n");
|
||||
|
||||
@@ -1024,7 +1111,7 @@ format_proc_cpuinfo (void *, char *&destbuf)
|
||||
|
||||
if (maxe >= 0x80000008) /* Address size. */
|
||||
{
|
||||
unsigned addr_size, phys, virt;
|
||||
uint32_t addr_size, phys, virt;
|
||||
cpuid (&addr_size, &unused, &unused, &unused, 0x80000008);
|
||||
|
||||
phys = addr_size & 0xff;
|
||||
@@ -1040,24 +1127,24 @@ format_proc_cpuinfo (void *, char *&destbuf)
|
||||
|
||||
if (maxe >= 0x80000007) /* Advanced power management. */
|
||||
{
|
||||
cpuid (&unused, &unused, &unused, &features2, 0x80000007);
|
||||
cpuid (&unused, &unused, &unused, &features1, 0x80000007);
|
||||
|
||||
print ("power management:");
|
||||
if (features2 & (1 << 0))
|
||||
if (features1 & (1 << 0))
|
||||
print (" ts");
|
||||
if (features2 & (1 << 1))
|
||||
if (features1 & (1 << 1))
|
||||
print (" fid");
|
||||
if (features2 & (1 << 2))
|
||||
if (features1 & (1 << 2))
|
||||
print (" vid");
|
||||
if (features2 & (1 << 3))
|
||||
if (features1 & (1 << 3))
|
||||
print (" ttp");
|
||||
if (features2 & (1 << 4))
|
||||
if (features1 & (1 << 4))
|
||||
print (" tm");
|
||||
if (features2 & (1 << 5))
|
||||
if (features1 & (1 << 5))
|
||||
print (" stc");
|
||||
if (features2 & (1 << 6))
|
||||
if (features1 & (1 << 6))
|
||||
print (" 100mhzsteps");
|
||||
if (features2 & (1 << 7))
|
||||
if (features1 & (1 << 7))
|
||||
print (" hwpstate");
|
||||
}
|
||||
}
|
||||
|
||||
@@ -11,6 +11,7 @@ details. */
|
||||
|
||||
#include "winsup.h"
|
||||
#include <unistd.h>
|
||||
#include <sys/param.h>
|
||||
#include "cygerrno.h"
|
||||
#include "path.h"
|
||||
#include "fhandler.h"
|
||||
@@ -65,10 +66,10 @@ fhandler_dev_random::write (const void *ptr, size_t len)
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Limit len to a value <= 512 since we don't want to overact.
|
||||
/* Limit len to a value <= 4096 since we don't want to overact.
|
||||
Copy to local buffer because CryptGenRandom violates const. */
|
||||
unsigned char buf[512];
|
||||
size_t limited_len = len <= 512 ? len : 512;
|
||||
size_t limited_len = MIN (len, 4096);
|
||||
unsigned char buf[limited_len];
|
||||
memcpy (buf, ptr, limited_len);
|
||||
|
||||
/* Mess up system entropy source. Return error if device is /dev/random. */
|
||||
|
||||
@@ -58,7 +58,6 @@ details. */
|
||||
#include "pinfo.h"
|
||||
#include "shared_info.h"
|
||||
#include "cygheap.h"
|
||||
#include "cpuid.h"
|
||||
#include "registry.h"
|
||||
#include "environ.h"
|
||||
#include "tls_pbuf.h"
|
||||
|
||||
Reference in New Issue
Block a user