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Diffstat (limited to 'target/s390x/cpu_models.h')
-rw-r--r--target/s390x/cpu_models.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/target/s390x/cpu_models.h b/target/s390x/cpu_models.h
index 136a602313..d41f8d6e38 100644
--- a/target/s390x/cpu_models.h
+++ b/target/s390x/cpu_models.h
@@ -46,6 +46,7 @@ typedef struct S390CPUModel {
/* values copied from the "host" model, can change during migration */
uint16_t lowest_ibc; /* lowest IBC that the hardware supports */
uint32_t cpu_id; /* CPU id */
+ uint8_t cpu_id_format; /* CPU id format bit */
uint8_t cpu_ver; /* CPU version, usually "ff" for kvm */
} S390CPUModel;
@@ -54,12 +55,14 @@ typedef struct S390CPUModel {
*
* bits 0-7: Zeroes (ff for kvm)
* bits 8-31: CPU ID (serial number)
- * bits 32-48: Machine type
- * bits 48-63: Zeroes
+ * bits 32-47: Machine type
+ * bit 48: CPU ID format
+ * bits 49-63: Zeroes
*/
#define cpuid_type(x) (((x) >> 16) & 0xffff)
#define cpuid_id(x) (((x) >> 32) & 0xffffff)
#define cpuid_ver(x) (((x) >> 56) & 0xff)
+#define cpuid_format(x) (((x) >> 15) & 0x1)
#define lowest_ibc(x) (((uint32_t)(x) >> 16) & 0xfff)
#define unblocked_ibc(x) ((uint32_t)(x) & 0xfff)
@@ -92,7 +95,8 @@ static inline uint64_t s390_cpuid_from_cpu_model(const S390CPUModel *model)
{
return ((uint64_t)model->cpu_ver << 56) |
((uint64_t)model->cpu_id << 32) |
- ((uint64_t)model->def->type << 16);
+ ((uint64_t)model->def->type << 16) |
+ (model->def->gen == 7 ? 0 : (uint64_t)model->cpu_id_format << 15);
}
S390CPUDef const *s390_find_cpu_def(uint16_t type, uint8_t gen, uint8_t ec_ga,
S390FeatBitmap features);