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s390x/cpumodel: add gen15 defintions

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add several new features (msa9, sort, deflate, additional vector
instructions, new general purpose instructions) to generation 15.

Also disable csske and bpb from the default and base models >=15.
This will allow to migrate gen15 machines to future machines that
do not have these features.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20190429090250.7648-9-borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Christian Borntraeger 2019-04-29 05:02:49 -04:00 committed by Cornelia Huck
parent afc7b8666b
commit caef62430f
1 changed files with 37 additions and 0 deletions
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37
target/s390x/gen-features.c
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@ -13,6 +13,7 @@
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include "cpu_features_def.h"
#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
@ -419,6 +420,10 @@ static uint16_t base_GEN14_GA1[] = {
#define base_GEN14_GA2 EmptyFeat
static uint16_t base_GEN15_GA1[] = {
S390_FEAT_MISC_INSTRUCTION_EXT3,
};
/* Full features (in order of release)
* Automatically includes corresponding base features.
* Full features are all features this hardware supports even if kvm/QEMU do not
@ -548,6 +553,16 @@ static uint16_t full_GEN14_GA1[] = {
#define full_GEN14_GA2 EmptyFeat
static uint16_t full_GEN15_GA1[] = {
S390_FEAT_VECTOR_ENH2,
S390_FEAT_GROUP_ENH_SORT,
S390_FEAT_GROUP_DEFLATE_CONVERSION,
S390_FEAT_VECTOR_BCD_ENH,
S390_FEAT_GROUP_MSA_EXT_9,
S390_FEAT_GROUP_MSA_EXT_9_PCKMO,
S390_FEAT_ETOKEN,
};
/* Default features (in order of release)
* Automatically includes corresponding base features.
* Default features are all features this version of QEMU supports for this
@ -624,6 +639,16 @@ static uint16_t default_GEN14_GA1[] = {
#define default_GEN14_GA2 EmptyFeat
static uint16_t default_GEN15_GA1[] = {
S390_FEAT_VECTOR_ENH2,
S390_FEAT_GROUP_ENH_SORT,
S390_FEAT_GROUP_DEFLATE_CONVERSION,
S390_FEAT_VECTOR_BCD_ENH,
S390_FEAT_GROUP_MSA_EXT_9,
S390_FEAT_GROUP_MSA_EXT_9_PCKMO,
S390_FEAT_ETOKEN,
};
/* QEMU (CPU model) features */
static uint16_t qemu_V2_11[] = {
@ -740,6 +765,7 @@ static CpuFeatDefSpec CpuFeatDef[] = {
CPU_FEAT_INITIALIZER(GEN13_GA2),
CPU_FEAT_INITIALIZER(GEN14_GA1),
CPU_FEAT_INITIALIZER(GEN14_GA2),
CPU_FEAT_INITIALIZER(GEN15_GA1),
};
#define FEAT_GROUP_INITIALIZER(_name) \
@ -808,6 +834,11 @@ static void set_bits(uint64_t list[], BitSpec bits)
}
}
static inline void clear_bit(uint64_t list[], unsigned long nr)
{
list[nr / 64] &= ~(1ULL << (nr % 64));
}
static void print_feature_defs(void)
{
uint64_t base_feat[S390_FEAT_MAX / 64 + 1] = {};
@ -818,6 +849,12 @@ static void print_feature_defs(void)
printf("\n/* CPU model feature list data */\n");
for (i = 0; i < ARRAY_SIZE(CpuFeatDef); i++) {
/* With gen15 CSSKE and BPB are deprecated */
if (strcmp(CpuFeatDef[i].name, "S390_FEAT_LIST_GEN15_GA1") == 0) {
clear_bit(base_feat, S390_FEAT_CONDITIONAL_SSKE);
clear_bit(default_feat, S390_FEAT_CONDITIONAL_SSKE);
clear_bit(default_feat, S390_FEAT_BPB);
}
set_bits(base_feat, CpuFeatDef[i].base_bits);
/* add the base to the default features */
set_bits(default_feat, CpuFeatDef[i].base_bits);