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[qemu-s390x] [PULL 3/8] s390x/cpumodel: Set up CPU model for AP device s
From: |
Cornelia Huck |
Subject: |
[qemu-s390x] [PULL 3/8] s390x/cpumodel: Set up CPU model for AP device support |
Date: |
Fri, 12 Oct 2018 12:00:56 +0200 |
From: Tony Krowiak <address@hidden>
A new CPU model feature and two new CPU model facilities are
introduced to support AP devices for a KVM guest.
CPU model features:
1. The S390_FEAT_AP CPU model feature indicates whether AP
instructions are available to the guest. This feature will
be enabled only if the AP instructions are available on the
linux host as determined by the availability of the
KVM_S390_VM_CRYPTO_ENABLE_APIE VM attribute which is exposed
by KVM only if the AP instructions are available on the
host.
This feature must be turned on from userspace to execute AP
instructions on the KVM guest. The QEMU command line to turn
this feature on looks something like this:
qemu-system-s390x ... -cpu xxx,ap=on ...
This feature will be supported for zEC12 and newer CPU models.
The feature will not be supported for older models because
there are few older systems on which to test and the older
crypto cards will be going out of service in the relatively
near future.
CPU model facilities:
1. The S390_FEAT_AP_QUERY_CONFIG_INFO feature indicates whether the
AP Query Configuration Information (QCI) facility is available
to the guest as determined by whether the facility is available
on the host. This feature will be exposed by KVM only if the
QCI facility is installed on the host.
2. The S390_FEAT_AP_FACILITY_TEST feature indicates whether the AP
Facility Test (APFT) facility is available to the guest as
determined by whether the facility is available on the host.
This feature will be exposed by KVM only if APFT is installed
on the host.
Signed-off-by: Tony Krowiak <address@hidden>
Tested-by: Pierre Morel <address@hidden>
Reviewed-by: David Hildenbrand <address@hidden>
Reviewed-by: Halil Pasic <address@hidden>
Reviewed-by: Christian Borntraeger <address@hidden>
Tested-by: Christian Borntraeger <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Cornelia Huck <address@hidden>
---
target/s390x/cpu_features.c | 3 +++
target/s390x/cpu_features_def.h | 3 +++
target/s390x/cpu_models.c | 2 ++
target/s390x/gen-features.c | 3 +++
4 files changed, 11 insertions(+)
diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c
index 172fb18df7..60cfeba48f 100644
--- a/target/s390x/cpu_features.c
+++ b/target/s390x/cpu_features.c
@@ -39,8 +39,10 @@ static const S390FeatDef s390_features[] = {
FEAT_INIT("srs", S390_FEAT_TYPE_STFL, 9, "Sense-running-status facility"),
FEAT_INIT("csske", S390_FEAT_TYPE_STFL, 10, "Conditional-SSKE facility"),
FEAT_INIT("ctop", S390_FEAT_TYPE_STFL, 11, "Configuration-topology
facility"),
+ FEAT_INIT("apqci", S390_FEAT_TYPE_STFL, 12, "Query AP Configuration
Information facility"),
FEAT_INIT("ipter", S390_FEAT_TYPE_STFL, 13, "IPTE-range facility"),
FEAT_INIT("nonqks", S390_FEAT_TYPE_STFL, 14, "Nonquiescing key-setting
facility"),
+ FEAT_INIT("apft", S390_FEAT_TYPE_STFL, 15, "AP Facilities Test facility"),
FEAT_INIT("etf2", S390_FEAT_TYPE_STFL, 16, "Extended-translation facility
2"),
FEAT_INIT("msa-base", S390_FEAT_TYPE_STFL, 17, "Message-security-assist
facility (excluding subfunctions)"),
FEAT_INIT("ldisp", S390_FEAT_TYPE_STFL, 18, "Long-displacement facility"),
@@ -129,6 +131,7 @@ static const S390FeatDef s390_features[] = {
FEAT_INIT_MISC("dateh2", "DAT-enhancement facility 2"),
FEAT_INIT_MISC("cmm", "Collaborative-memory-management facility"),
+ FEAT_INIT_MISC("ap", "AP instructions installed"),
FEAT_INIT("plo-cl", S390_FEAT_TYPE_PLO, 0, "PLO Compare and load (32 bit
in general registers)"),
FEAT_INIT("plo-clg", S390_FEAT_TYPE_PLO, 1, "PLO Compare and load (64 bit
in parameter list)"),
diff --git a/target/s390x/cpu_features_def.h b/target/s390x/cpu_features_def.h
index ac2c947f30..5fc7e7bf01 100644
--- a/target/s390x/cpu_features_def.h
+++ b/target/s390x/cpu_features_def.h
@@ -27,8 +27,10 @@ typedef enum {
S390_FEAT_SENSE_RUNNING_STATUS,
S390_FEAT_CONDITIONAL_SSKE,
S390_FEAT_CONFIGURATION_TOPOLOGY,
+ S390_FEAT_AP_QUERY_CONFIG_INFO,
S390_FEAT_IPTE_RANGE,
S390_FEAT_NONQ_KEY_SETTING,
+ S390_FEAT_AP_FACILITIES_TEST,
S390_FEAT_EXTENDED_TRANSLATION_2,
S390_FEAT_MSA,
S390_FEAT_LONG_DISPLACEMENT,
@@ -119,6 +121,7 @@ typedef enum {
/* Misc */
S390_FEAT_DAT_ENH_2,
S390_FEAT_CMM,
+ S390_FEAT_AP,
/* PLO */
S390_FEAT_PLO_CL,
diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c
index 265d25c937..7c253ff308 100644
--- a/target/s390x/cpu_models.c
+++ b/target/s390x/cpu_models.c
@@ -786,6 +786,8 @@ static void check_consistency(const S390CPUModel *model)
{ S390_FEAT_PRNO_TRNG_QRTCR, S390_FEAT_MSA_EXT_5 },
{ S390_FEAT_PRNO_TRNG, S390_FEAT_MSA_EXT_5 },
{ S390_FEAT_SIE_KSS, S390_FEAT_SIE_F2 },
+ { S390_FEAT_AP_QUERY_CONFIG_INFO, S390_FEAT_AP },
+ { S390_FEAT_AP_FACILITIES_TEST, S390_FEAT_AP },
};
int i;
diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c
index 384b61cd67..70015eaaf5 100644
--- a/target/s390x/gen-features.c
+++ b/target/s390x/gen-features.c
@@ -447,6 +447,9 @@ static uint16_t full_GEN12_GA1[] = {
S390_FEAT_ADAPTER_INT_SUPPRESSION,
S390_FEAT_EDAT_2,
S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2,
+ S390_FEAT_AP_QUERY_CONFIG_INFO,
+ S390_FEAT_AP_FACILITIES_TEST,
+ S390_FEAT_AP,
};
static uint16_t full_GEN12_GA2[] = {
--
2.14.4
- [qemu-s390x] [PULL 0/8] s390x updates, Cornelia Huck, 2018/10/12
- [qemu-s390x] [PULL 1/8] target/s390x/excp_helper: Remove DPRINTF() macro, Cornelia Huck, 2018/10/12
- [qemu-s390x] [PULL 3/8] s390x/cpumodel: Set up CPU model for AP device support,
Cornelia Huck <=
- [qemu-s390x] [PULL 6/8] s390x/vfio: ap: Introduce VFIO AP device, Cornelia Huck, 2018/10/12
- [qemu-s390x] [PULL 4/8] s390x/kvm: enable AP instruction interpretation for guest, Cornelia Huck, 2018/10/12
- [qemu-s390x] [PULL 2/8] linux-headers: update, Cornelia Huck, 2018/10/12
- [qemu-s390x] [PULL 8/8] hw/s390x: Include the tod-qemu also for builds with --disable-tcg, Cornelia Huck, 2018/10/12
- [qemu-s390x] [PULL 5/8] s390x/ap: base Adjunct Processor (AP) object model, Cornelia Huck, 2018/10/12
- [qemu-s390x] [PULL 7/8] s390: doc: detailed specifications for AP virtualization, Cornelia Huck, 2018/10/12
- Re: [qemu-s390x] [PULL 0/8] s390x updates, Peter Maydell, 2018/10/12