4757e2c771
Add emulation for /proc/cpuinfo for the alpha architecture. alpha output example: (alpha-chroot)root@p100:/# cat /proc/cpuinfo cpu : Alpha cpu model : ev67 cpu variation : 0 cpu revision : 0 cpu serial number : JA00000000 system type : QEMU system variation : QEMU_v8.0.92 system revision : 0 system serial number : AY00000000 cycle frequency [Hz] : 250000000 timer frequency [Hz] : 250.00 page size [bytes] : 8192 phys. address bits : 44 max. addr. space # : 255 BogoMIPS : 2500.00 platform string : AlphaServer QEMU user-mode VM cpus detected : 8 cpus active : 4 cpu active mask : 0000000000000095 L1 Icache : n/a L1 Dcache : n/a L2 cache : n/a L3 cache : n/a Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230803214450.647040-4-deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/*
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* Alpha specific proc functions for linux-user
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef ALPHA_TARGET_PROC_H
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#define ALPHA_TARGET_PROC_H
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static int open_cpuinfo(CPUArchState *cpu_env, int fd)
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{
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int max_cpus = sysconf(_SC_NPROCESSORS_CONF);
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int num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
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unsigned long cpu_mask;
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char model[32];
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const char *p, *q;
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int t;
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p = object_class_get_name(OBJECT_CLASS(CPU_GET_CLASS(env_cpu(cpu_env))));
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q = strchr(p, '-');
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t = q - p;
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assert(t < sizeof(model));
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memcpy(model, p, t);
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model[t] = 0;
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t = sched_getaffinity(getpid(), sizeof(cpu_mask), (cpu_set_t *)&cpu_mask);
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if (t < 0) {
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if (num_cpus >= sizeof(cpu_mask) * 8) {
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cpu_mask = -1;
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} else {
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cpu_mask = (1UL << num_cpus) - 1;
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}
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}
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dprintf(fd,
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"cpu\t\t\t: Alpha\n"
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"cpu model\t\t: %s\n"
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"cpu variation\t\t: 0\n"
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"cpu revision\t\t: 0\n"
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"cpu serial number\t: JA00000000\n"
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"system type\t\t: QEMU\n"
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"system variation\t: QEMU_v" QEMU_VERSION "\n"
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"system revision\t\t: 0\n"
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"system serial number\t: AY00000000\n"
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"cycle frequency [Hz]\t: 250000000\n"
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"timer frequency [Hz]\t: 250.00\n"
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"page size [bytes]\t: %d\n"
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"phys. address bits\t: %d\n"
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"max. addr. space #\t: 255\n"
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"BogoMIPS\t\t: 2500.00\n"
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"kernel unaligned acc\t: 0 (pc=0,va=0)\n"
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"user unaligned acc\t: 0 (pc=0,va=0)\n"
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"platform string\t\t: AlphaServer QEMU user-mode VM\n"
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"cpus detected\t\t: %d\n"
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"cpus active\t\t: %d\n"
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"cpu active mask\t\t: %016lx\n"
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"L1 Icache\t\t: n/a\n"
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"L1 Dcache\t\t: n/a\n"
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"L2 cache\t\t: n/a\n"
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"L3 cache\t\t: n/a\n",
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model, TARGET_PAGE_SIZE, TARGET_PHYS_ADDR_SPACE_BITS,
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max_cpus, num_cpus, cpu_mask);
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return 0;
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}
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#define HAVE_ARCH_PROC_CPUINFO
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#endif /* ALPHA_TARGET_PROC_H */
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