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linux-user: Implement /proc/cpuinfo for m68k CPU

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Mimic the entries for /proc/cpuinfo to what can be seen on the debian
porterbox mitchy.debian.org.

Cc: Thomas Huth <th.huth+qemu@posteo.eu>
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller
2026-06-16 23:03:17 +02:00
parent 13956e8244
commit 0b0ef9060c
1 changed files with 46 additions and 0 deletions
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46
linux-user/m68k/target_proc.h
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@@ -1,6 +1,8 @@
/*
* M68K specific proc functions for linux-user
*
* Copyright (c) 2026 Helge Deller
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef M68K_TARGET_PROC_H
@@ -13,4 +15,48 @@ static int open_hardware(CPUArchState *cpu_env, int fd)
}
#define HAVE_ARCH_PROC_HARDWARE
static int open_cpuinfo(CPUArchState *cpu_env, int fd)
{
const char *cpu, *fpu;
struct timespec res;
double freq_mhz;
if (clock_getres(CLOCK_REALTIME, &res) == -1) {
res.tv_nsec = 1;
}
freq_mhz = 1000.0 / res.tv_nsec;
if (m68k_feature(cpu_env, M68K_FEATURE_M68010)) {
cpu = "68010";
} else if (m68k_feature(cpu_env, M68K_FEATURE_M68020)) {
cpu = "68020";
} else if (m68k_feature(cpu_env, M68K_FEATURE_M68030)) {
cpu = "68030";
} else if (m68k_feature(cpu_env, M68K_FEATURE_M68040)) {
cpu = "68040";
} else if (m68k_feature(cpu_env, M68K_FEATURE_M68060)) {
cpu = "68060";
} else {
cpu = "680x0";
}
if (m68k_feature(cpu_env, M68K_FEATURE_FPU)) {
fpu = cpu;
} else {
fpu = "none(soft float)";
}
dprintf(fd, "CPU:\t\t%s\n"
"MMU:\t\t%s\n"
"FPU:\t\t%s\n"
"Clocking:\t%.1fMHz\n"
"Model:\t\tQEMU user v" QEMU_VERSION "\n",
cpu, cpu, fpu, freq_mhz);
/* dropped BogoMips and Calibration for now */
return 0;
}
#define HAVE_ARCH_PROC_CPUINFO
#endif /* M68K_TARGET_PROC_H */