From 4acb439f71797a92ad4d442becdeff28fc36c83a Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Wed, 22 May 2019 08:04:01 +0100 Subject: [PATCH 09/12] s390x/cpumodel: add gen15 defintions RH-Author: David Hildenbrand Message-id: <20190522080402.20173-10-david@redhat.com> Patchwork-id: 88156 O-Subject: [RHEL8.1 qemu-kvm PATCH v2 09/10] s390x/cpumodel: add gen15 defintions Bugzilla: 1660912 RH-Acked-by: Cornelia Huck RH-Acked-by: Jens Freimann RH-Acked-by: Thomas Huth 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 Message-Id: <20190429090250.7648-9-borntraeger@de.ibm.com> Reviewed-by: David Hildenbrand Signed-off-by: Cornelia Huck (cherry picked from commit caef62430fed6e732d3e43d76752d165cf02ad67) Conflicts: target/s390x/gen-features.c: Minor contextual conflict due to a different z14-GA2 default model definition (upstream already adds these features to the z14-GA1 model). Signed-off-by: David Hildenbrand Signed-off-by: Danilo C. L. de Paula --- target/s390x/gen-features.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c index c61bce2..818d51c 100644 --- a/target/s390x/gen-features.c +++ b/target/s390x/gen-features.c @@ -13,6 +13,7 @@ #include #include +#include #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 @@ -630,6 +645,16 @@ static uint16_t default_GEN14_GA2[] = { S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF, }; +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[] = { @@ -739,6 +764,7 @@ 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) \ @@ -806,6 +832,11 @@ 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] = {}; @@ -816,6 +847,12 @@ 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); -- 1.8.3.1