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s390x/sclp: indicate sclp features 

We have three different blocks in the SCLP read-SCP information response
that indicate sclp features. Let's prepare propagation.

Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Message-Id: <20160905085244.99980-16-dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
David Hildenbrand 2016-09-05 10:52:29 +02:00 committed by Cornelia Huck
parent 1c07e01b61
commit 4dd4200ee7
3 changed files with 24 additions and 0 deletions
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9
hw/s390x/sclp.c
View File

@ -36,11 +36,14 @@ static inline SCLPDevice *get_sclp_device(void)
static void prepare_cpu_entries(SCLPDevice *sclp, CPUEntry *entry, int count)
{
uint8_t features[SCCB_CPU_FEATURE_LEN] = { 0 };
int i;
s390_get_feat_block(S390_FEAT_TYPE_SCLP_CPU, features);
for (i = 0; i < count; i++) {
entry[i].address = i;
entry[i].type = 0;
memcpy(entry[i].features, features, sizeof(entry[i].features));
}
}
@ -64,6 +67,12 @@ static void read_SCP_info(SCLPDevice *sclp, SCCB *sccb)
read_info->offset_cpu = cpu_to_be16(offsetof(ReadInfo, entries));
read_info->highest_cpu = cpu_to_be16(max_cpus);
/* Configuration Characteristic (Extension) */
s390_get_feat_block(S390_FEAT_TYPE_SCLP_CONF_CHAR,
read_info->conf_char);
s390_get_feat_block(S390_FEAT_TYPE_SCLP_CONF_CHAR_EXT,
read_info->conf_char_ext);
prepare_cpu_entries(sclp, read_info->entries, cpu_count);
read_info->facilities = cpu_to_be64(SCLP_HAS_CPU_INFO |

14
target-s390x/cpu_models.c
View File

@ -74,6 +74,20 @@ static S390CPUDef s390_cpu_defs[] = {
CPUDEF_INIT(0x2965, 13, 2, 47, 0x08000000U, "z13s", "IBM z13s GA1"),
};
void s390_get_feat_block(S390FeatType type, uint8_t *data)
{
static S390CPU *cpu;
if (!cpu) {
cpu = S390_CPU(qemu_get_cpu(0));
}
if (!cpu || !cpu->model) {
return;
}
s390_fill_feat_block(cpu->model->features, type, data);
}
bool s390_has_feat(S390Feat feat)
{
static S390CPU *cpu;

1
target-s390x/cpu_models.h
View File

@ -49,6 +49,7 @@ typedef struct S390CPUModel {
uint8_t cpu_ver; /* CPU version, usually "ff" for kvm */
} S390CPUModel;
void s390_get_feat_block(S390FeatType type, uint8_t *data);
bool s390_has_feat(S390Feat feat);
#endif /* TARGET_S390X_CPU_MODELS_H */