121c8dd69d
Move the various open_cpuinfo functions into new files. Move the m68k open_hardware function as well. All other guest architectures get a boilerplate empty file. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
/*
|
|
* S390X specific proc functions for linux-user
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
#ifndef S390X_TARGET_PROC_H
|
|
#define S390X_TARGET_PROC_H
|
|
|
|
/*
|
|
* Emulate what a Linux kernel running in qemu-system-s390x -M accel=tcg would
|
|
* show in /proc/cpuinfo.
|
|
*
|
|
* Skip the following in order to match the missing support in op_ecag():
|
|
* - show_cacheinfo().
|
|
* - show_cpu_topology().
|
|
* - show_cpu_mhz().
|
|
*
|
|
* Use fixed values for certain fields:
|
|
* - bogomips per cpu - from a qemu-system-s390x run.
|
|
* - max thread id = 0, since SMT / SIGP_SET_MULTI_THREADING is not supported.
|
|
*
|
|
* Keep the code structure close to arch/s390/kernel/processor.c.
|
|
*/
|
|
|
|
static void show_facilities(int fd)
|
|
{
|
|
size_t sizeof_stfl_bytes = 2048;
|
|
g_autofree uint8_t *stfl_bytes = g_new0(uint8_t, sizeof_stfl_bytes);
|
|
unsigned int bit;
|
|
|
|
dprintf(fd, "facilities :");
|
|
s390_get_feat_block(S390_FEAT_TYPE_STFL, stfl_bytes);
|
|
for (bit = 0; bit < sizeof_stfl_bytes * 8; bit++) {
|
|
if (test_be_bit(bit, stfl_bytes)) {
|
|
dprintf(fd, " %d", bit);
|
|
}
|
|
}
|
|
dprintf(fd, "\n");
|
|
}
|
|
|
|
static int cpu_ident(unsigned long n)
|
|
{
|
|
return deposit32(0, CPU_ID_BITS - CPU_PHYS_ADDR_BITS, CPU_PHYS_ADDR_BITS,
|
|
n);
|
|
}
|
|
|
|
static void show_cpu_summary(CPUArchState *cpu_env, int fd)
|
|
{
|
|
S390CPUModel *model = env_archcpu(cpu_env)->model;
|
|
int num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
|
|
uint32_t elf_hwcap = get_elf_hwcap();
|
|
const char *hwcap_str;
|
|
int i;
|
|
|
|
dprintf(fd, "vendor_id : IBM/S390\n"
|
|
"# processors : %i\n"
|
|
"bogomips per cpu: 13370.00\n",
|
|
num_cpus);
|
|
dprintf(fd, "max thread id : 0\n");
|
|
dprintf(fd, "features\t: ");
|
|
for (i = 0; i < sizeof(elf_hwcap) * 8; i++) {
|
|
if (!(elf_hwcap & (1 << i))) {
|
|
continue;
|
|
}
|
|
hwcap_str = elf_hwcap_str(i);
|
|
if (hwcap_str) {
|
|
dprintf(fd, "%s ", hwcap_str);
|
|
}
|
|
}
|
|
dprintf(fd, "\n");
|
|
show_facilities(fd);
|
|
for (i = 0; i < num_cpus; i++) {
|
|
dprintf(fd, "processor %d: "
|
|
"version = %02X, "
|
|
"identification = %06X, "
|
|
"machine = %04X\n",
|
|
i, model->cpu_ver, cpu_ident(i), model->def->type);
|
|
}
|
|
}
|
|
|
|
static void show_cpu_ids(CPUArchState *cpu_env, int fd, unsigned long n)
|
|
{
|
|
S390CPUModel *model = env_archcpu(cpu_env)->model;
|
|
|
|
dprintf(fd, "version : %02X\n", model->cpu_ver);
|
|
dprintf(fd, "identification : %06X\n", cpu_ident(n));
|
|
dprintf(fd, "machine : %04X\n", model->def->type);
|
|
}
|
|
|
|
static void show_cpuinfo(CPUArchState *cpu_env, int fd, unsigned long n)
|
|
{
|
|
dprintf(fd, "\ncpu number : %ld\n", n);
|
|
show_cpu_ids(cpu_env, fd, n);
|
|
}
|
|
|
|
static int open_cpuinfo(CPUArchState *cpu_env, int fd)
|
|
{
|
|
int num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
|
|
int i;
|
|
|
|
show_cpu_summary(cpu_env, fd);
|
|
for (i = 0; i < num_cpus; i++) {
|
|
show_cpuinfo(cpu_env, fd, i);
|
|
}
|
|
return 0;
|
|
}
|
|
#define HAVE_ARCH_PROC_CPUINFO
|
|
|
|
#endif /* S390X_TARGET_PROC_H */
|