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[Qemu-devel] [RFC 16/20] target-i386: replace uint32_t vendor fields by
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [RFC 16/20] target-i386: replace uint32_t vendor fields by vendor string in x86_def_t |
Date: |
Fri, 10 Aug 2012 13:22:32 +0200 |
Vendor property setter takes string as vendor value but cpudefs
use uint32_t vendor[123] fields to define vendor value. It makes it
difficult to unify and use property setter for values from cpudefs.
To allow simplify code by using vendor property setter, vendor[123]
fields are converted into vendor[13] array to keep its value. And
vendor property setter is used to access/set value on CPU.
Signed-off-by: Igor Mammedov <address@hidden>
---
target-i386/cpu.c | 76 +++++++++++++------------------------------------------
target-i386/cpu.h | 10 +++-----
2 files changed, 20 insertions(+), 66 deletions(-)
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 368360f..6f1b66e 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -226,7 +226,7 @@ typedef struct x86_def_t {
struct x86_def_t *next;
const char *name;
uint32_t level;
- uint32_t vendor1, vendor2, vendor3;
+ char vendor[CPUID_VENDOR_SZ + 1];
int family;
int model;
int stepping;
@@ -292,9 +292,7 @@ static x86_def_t builtin_x86_defs[] = {
{
.name = "qemu64",
.level = 4,
- .vendor1 = CPUID_VENDOR_AMD_1,
- .vendor2 = CPUID_VENDOR_AMD_2,
- .vendor3 = CPUID_VENDOR_AMD_3,
+ .vendor = CPUID_VENDOR_AMD,
.family = 6,
.model = 2,
.stepping = 3,
@@ -311,9 +309,7 @@ static x86_def_t builtin_x86_defs[] = {
{
.name = "phenom",
.level = 5,
- .vendor1 = CPUID_VENDOR_AMD_1,
- .vendor2 = CPUID_VENDOR_AMD_2,
- .vendor3 = CPUID_VENDOR_AMD_3,
+ .vendor = CPUID_VENDOR_AMD,
.family = 16,
.model = 2,
.stepping = 3,
@@ -357,9 +353,7 @@ static x86_def_t builtin_x86_defs[] = {
{
.name = "kvm64",
.level = 5,
- .vendor1 = CPUID_VENDOR_INTEL_1,
- .vendor2 = CPUID_VENDOR_INTEL_2,
- .vendor3 = CPUID_VENDOR_INTEL_3,
+ .vendor = CPUID_VENDOR_INTEL,
.family = 15,
.model = 6,
.stepping = 1,
@@ -458,9 +452,7 @@ static x86_def_t builtin_x86_defs[] = {
{
.name = "athlon",
.level = 2,
- .vendor1 = CPUID_VENDOR_AMD_1,
- .vendor2 = CPUID_VENDOR_AMD_2,
- .vendor3 = CPUID_VENDOR_AMD_3,
+ .vendor = CPUID_VENDOR_AMD,
.family = 6,
.model = 2,
.stepping = 3,
@@ -506,13 +498,16 @@ static int cpu_x86_fill_model_id(char *str)
static int cpu_x86_fill_host(x86_def_t *x86_cpu_def)
{
uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
+ int i;
x86_cpu_def->name = "host";
host_cpuid(0x0, 0, &eax, &ebx, &ecx, &edx);
x86_cpu_def->level = eax;
- x86_cpu_def->vendor1 = ebx;
- x86_cpu_def->vendor2 = edx;
- x86_cpu_def->vendor3 = ecx;
+ for (i = 0; i < 4; i++) {
+ x86_cpu_def->vendor[i] = ebx >> (8 * i);
+ x86_cpu_def->vendor[i + 4] = edx >> (8 * i);
+ x86_cpu_def->vendor[i + 8] = ecx >> (8 * i);
+ }
host_cpuid(0x1, 0, &eax, &ebx, &ecx, &edx);
x86_cpu_def->family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF);
@@ -537,9 +532,7 @@ static int cpu_x86_fill_host(x86_def_t *x86_cpu_def)
x86_cpu_def->vendor_override = 0;
/* Call Centaur's CPUID instruction. */
- if (x86_cpu_def->vendor1 == CPUID_VENDOR_VIA_1 &&
- x86_cpu_def->vendor2 == CPUID_VENDOR_VIA_2 &&
- x86_cpu_def->vendor3 == CPUID_VENDOR_VIA_3) {
+ if (!strcmp(x86_cpu_def->vendor, CPUID_VENDOR_VIA)) {
host_cpuid(0xC0000000, 0, &eax, &ebx, &ecx, &edx);
if (eax >= 0xC0000001) {
/* Support VIA max extended level */
@@ -1096,15 +1089,8 @@ static void cpudef_2_x86_cpu(X86CPU *cpu, x86_def_t
*def, Error **errp)
{
CPUX86State *env = &cpu->env;
- if (def->vendor1) {
- env->cpuid_vendor1 = def->vendor1;
- env->cpuid_vendor2 = def->vendor2;
- env->cpuid_vendor3 = def->vendor3;
- } else {
- env->cpuid_vendor1 = CPUID_VENDOR_INTEL_1;
- env->cpuid_vendor2 = CPUID_VENDOR_INTEL_2;
- env->cpuid_vendor3 = CPUID_VENDOR_INTEL_3;
- }
+ object_property_set_str(OBJECT(cpu), def->vendor[0] ?
+ def->vendor : CPUID_VENDOR_INTEL, "vendor", errp);
object_property_set_bool(OBJECT(cpu), true, "vendor-override", errp);
object_property_set_int(OBJECT(cpu), def->level, "level", errp);
object_property_set_int(OBJECT(cpu), def->family, "family", errp);
@@ -1128,7 +1114,6 @@ static void cpudef_2_x86_cpu(X86CPU *cpu, x86_def_t *def,
Error **errp)
static int cpu_x86_find_by_name(X86CPU *cpu, x86_def_t *x86_cpu_def,
const char *cpu_model, Error **errp)
{
- unsigned int i;
x86_def_t *def;
char *s = g_strdup(cpu_model);
@@ -1217,18 +1202,7 @@ static int cpu_x86_find_by_name(X86CPU *cpu, x86_def_t
*x86_cpu_def,
}
x86_cpu_def->xlevel = numvalue;
} else if (!strcmp(featurestr, "vendor")) {
- if (strlen(val) != 12) {
- fprintf(stderr, "vendor string must be 12 chars long\n");
- goto error;
- }
- x86_cpu_def->vendor1 = 0;
- x86_cpu_def->vendor2 = 0;
- x86_cpu_def->vendor3 = 0;
- for(i = 0; i < 4; i++) {
- x86_cpu_def->vendor1 |= ((uint8_t)val[i ]) << (8 * i);
- x86_cpu_def->vendor2 |= ((uint8_t)val[i + 4]) << (8 * i);
- x86_cpu_def->vendor3 |= ((uint8_t)val[i + 8]) << (8 * i);
- }
+ pstrcpy(x86_cpu_def->vendor, sizeof(x86_cpu_def->vendor), val);
x86_cpu_def->vendor_override = 1;
} else if (!strcmp(featurestr, "model_id")) {
pstrcpy(x86_cpu_def->model_id, sizeof(x86_cpu_def->model_id),
@@ -1362,10 +1336,7 @@ void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf,
const char *optarg)
(*cpu_fprintf)(f, "x86 %16s\n", buf);
}
if (dump) {
- memcpy(buf, &def->vendor1, sizeof (def->vendor1));
- memcpy(buf + 4, &def->vendor2, sizeof (def->vendor2));
- memcpy(buf + 8, &def->vendor3, sizeof (def->vendor3));
- buf[12] = '\0';
+ pstrcpy(buf, sizeof(def->vendor), def->vendor);
(*cpu_fprintf)(f,
" family %d model %d stepping %d level %d xlevel 0x%x"
" vendor \"%s\"\n",
@@ -1416,17 +1387,6 @@ out:
}
#if !defined(CONFIG_USER_ONLY)
-/* copy vendor id string to 32 bit register, nul pad as needed
- */
-static void cpyid(const char *s, uint32_t *id)
-{
- char *d = (char *)id;
- char i;
-
- for (i = sizeof (*id); i--; )
- *d++ = *s ? *s++ : '\0';
-}
-
/* interpret radix and convert from string to arbitrary scalar,
* otherwise flag failure
*/
@@ -1478,9 +1438,7 @@ static int cpudef_setfield(const char *name, const char
*str, void *opaque)
} else if (!strcmp(name, "level")) {
setscalar(&def->level, str, &err)
} else if (!strcmp(name, "vendor")) {
- cpyid(&str[0], &def->vendor1);
- cpyid(&str[4], &def->vendor2);
- cpyid(&str[8], &def->vendor3);
+ pstrcpy(def->vendor, sizeof(def->vendor), str);
} else if (!strcmp(name, "family")) {
setscalar(&def->family, str, &err)
} else if (!strcmp(name, "model")) {
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index 5c75704..5543496 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -445,14 +445,10 @@
#define CPUID_VENDOR_INTEL_1 0x756e6547 /* "Genu" */
#define CPUID_VENDOR_INTEL_2 0x49656e69 /* "ineI" */
#define CPUID_VENDOR_INTEL_3 0x6c65746e /* "ntel" */
+#define CPUID_VENDOR_INTEL "GenuineIntel"
-#define CPUID_VENDOR_AMD_1 0x68747541 /* "Auth" */
-#define CPUID_VENDOR_AMD_2 0x69746e65 /* "enti" */
-#define CPUID_VENDOR_AMD_3 0x444d4163 /* "cAMD" */
-
-#define CPUID_VENDOR_VIA_1 0x746e6543 /* "Cent" */
-#define CPUID_VENDOR_VIA_2 0x48727561 /* "aurH" */
-#define CPUID_VENDOR_VIA_3 0x736c7561 /* "auls" */
+#define CPUID_VENDOR_AMD "AuthenticAMD"
+#define CPUID_VENDOR_VIA "CentaurHauls"
#define CPUID_MWAIT_IBE (1 << 1) /* Interrupts can exit capability */
#define CPUID_MWAIT_EMX (1 << 0) /* enumeration supported */
--
1.7.11.2
- [Qemu-devel] [RFC 11/20] target-i386: convert 'check' and 'enforce' features into properties, (continued)
[Qemu-devel] [RFC 10/20] target-i386: convert 'hv_vapic' feature into property, Igor Mammedov, 2012/08/10
[Qemu-devel] [RFC 12/20] add visitor for parsing hz[KMG] input string, Igor Mammedov, 2012/08/10
[Qemu-devel] [RFC 16/20] target-i386: replace uint32_t vendor fields by vendor string in x86_def_t,
Igor Mammedov <=
[Qemu-devel] [RFC 17/20] target-i386: parse cpu_model string into set of stringified properties, Igor Mammedov, 2012/08/10
[Qemu-devel] [RFC 20/20] target-i386: move default init of cpuid_kvm_features bitmap into CPU initializer from cpudef, Igor Mammedov, 2012/08/10
Re: [Qemu-devel] [RFC 00/20] target-i386: convert CPU features into properties, Igor Mammedov, 2012/08/10
[Qemu-devel] [RFC 19/20] target-i386: move init of "hypervisor" feature into CPU initializer from cpudef, Igor Mammedov, 2012/08/10
[Qemu-devel] [RFC 13/20] target-i386: use visit_type_hz to parse tsc_freq property value, Igor Mammedov, 2012/08/10
[Qemu-devel] [RFC 14/20] target-i386: introduce vendor-override property, Igor Mammedov, 2012/08/10
[Qemu-devel] [RFC 18/20] target-i386: use properties to set/unset user specified features on CPU, Igor Mammedov, 2012/08/10