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| author | Andre Przywara <andre.przywara@amd.com> | 2009-08-20 21:03:48 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-08-27 19:33:15 -0500 |
| commit | a8a358bf35e660b1c0bf5adc5446836c6c0d1c73 (patch) | |
| tree | fb71b17362786e0630d53ac5692c79d00d56d484 /target-i386 | |
| parent | 400281af34e5ee6aa9f5496b53d8f82c6fef9319 (diff) | |
| download | qemu-a8a358bf35e660b1c0bf5adc5446836c6c0d1c73.zip qemu-a8a358bf35e660b1c0bf5adc5446836c6c0d1c73.tar.gz qemu-a8a358bf35e660b1c0bf5adc5446836c6c0d1c73.tar.bz2 | |
allow overriding of CPUID level on command line
The CPUID level determines how many CPUID leafs are exposed to the guest.
Some features (like multi-core) cannot be propagated without the proper
level, but guests maybe confused by bogus entries in some leafs.
So add level= and xlevel= to the list of -cpu options to allow the user to
override the default settings. While at it, merge unnecessary local
variables into one and allow hexadecimal arguments.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/helper.c | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/target-i386/helper.c b/target-i386/helper.c index 4d71d42..fa9b4d8 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -349,7 +349,7 @@ static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model) char *featurestr, *name = strtok(s, ","); uint32_t plus_features = 0, plus_ext_features = 0, plus_ext2_features = 0, plus_ext3_features = 0; uint32_t minus_features = 0, minus_ext_features = 0, minus_ext2_features = 0, minus_ext3_features = 0; - int family = -1, model = -1, stepping = -1; + uint32_t numvalue; def = NULL; for (i = 0; i < ARRAY_SIZE(x86_defs); i++) { @@ -381,28 +381,47 @@ static int cpu_x86_find_by_name(x86_def_t *x86_cpu_def, const char *cpu_model) *val = 0; val++; if (!strcmp(featurestr, "family")) { char *err; - family = strtol(val, &err, 10); - if (!*val || *err || family < 0) { + numvalue = strtoul(val, &err, 0); + if (!*val || *err) { fprintf(stderr, "bad numerical value %s\n", val); goto error; } - x86_cpu_def->family = family; + x86_cpu_def->family = numvalue; } else if (!strcmp(featurestr, "model")) { char *err; - model = strtol(val, &err, 10); - if (!*val || *err || model < 0 || model > 0xff) { + numvalue = strtoul(val, &err, 0); + if (!*val || *err || numvalue > 0xff) { fprintf(stderr, "bad numerical value %s\n", val); goto error; } - x86_cpu_def->model = model; + x86_cpu_def->model = numvalue; } else if (!strcmp(featurestr, "stepping")) { char *err; - stepping = strtol(val, &err, 10); - if (!*val || *err || stepping < 0 || stepping > 0xf) { + numvalue = strtoul(val, &err, 0); + if (!*val || *err || numvalue > 0xf) { fprintf(stderr, "bad numerical value %s\n", val); goto error; } - x86_cpu_def->stepping = stepping; + x86_cpu_def->stepping = numvalue ; + } else if (!strcmp(featurestr, "level")) { + char *err; + numvalue = strtoul(val, &err, 0); + if (!*val || *err) { + fprintf(stderr, "bad numerical value %s\n", val); + goto error; + } + x86_cpu_def->level = numvalue; + } else if (!strcmp(featurestr, "xlevel")) { + char *err; + numvalue = strtoul(val, &err, 0); + if (!*val || *err) { + fprintf(stderr, "bad numerical value %s\n", val); + goto error; + } + if (numvalue < 0x80000000) { + numvalue += 0x80000000; + } + x86_cpu_def->xlevel = numvalue; } else if (!strcmp(featurestr, "vendor")) { if (strlen(val) != 12) { fprintf(stderr, "vendor string must be 12 chars long\n"); |