From: "Jason J. Herne" <jjherne@xxxxxxxxxxxxxxxxxx>
msa6 and msa7 require no changes.
msa8 adds kma instruction and feature area.
Signed-off-by: Jason J. Herne <jjherne@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
Documentation/virtual/kvm/devices/vm.txt | 3 ++-
arch/s390/include/uapi/asm/kvm.h | 3 ++-
arch/s390/kvm/kvm-s390.c | 4 ++++
arch/s390/tools/gen_facilities.c | 1 +
tools/arch/s390/include/uapi/asm/kvm.h | 3 ++-
5 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/Documentation/virtual/kvm/devices/vm.txt b/Documentation/virtual/kvm/devices/vm.txt
index b6cda49..575ccb0 100644
--- a/Documentation/virtual/kvm/devices/vm.txt
+++ b/Documentation/virtual/kvm/devices/vm.txt
@@ -140,7 +140,8 @@ struct kvm_s390_vm_cpu_subfunc {
u8 kmo[16]; # valid with Message-Security-Assist-Extension 4
u8 pcc[16]; # valid with Message-Security-Assist-Extension 4
u8 ppno[16]; # valid with Message-Security-Assist-Extension 5
- u8 reserved[1824]; # reserved for future instructions
+ u8 kma[16]; # valid with Message-Security-Assist-Extension 8
+ u8 reserved[1808]; # reserved for future instructions
};
Parameters: address of a buffer to load the subfunction blocks from.
diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index bf92679..3dd2a1d 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -141,7 +141,8 @@ struct kvm_s390_vm_cpu_subfunc {
__u8 kmo[16]; /* with MSA4 */
__u8 pcc[16]; /* with MSA4 */
__u8 ppno[16]; /* with MSA5 */
- __u8 reserved[1824];
+ __u8 kma[16]; /* with MSA8 */
+ __u8 reserved[1808];
};
/* kvm attributes for crypto */
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 8771fef..7eb1275 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -276,6 +276,10 @@ static void kvm_s390_cpu_feat_init(void)
__cpacf_query(CPACF_PPNO, (cpacf_mask_t *)
kvm_s390_available_subfunc.ppno);
+ if (test_facility(146)) /* MSA8 */
+ __cpacf_query(CPACF_KMA, (cpacf_mask_t *)
+ kvm_s390_available_subfunc.kma);
+
if (MACHINE_HAS_ESOP)
allow_cpu_feat(KVM_S390_VM_CPU_FEAT_ESOP);
/*
diff --git a/arch/s390/tools/gen_facilities.c b/arch/s390/tools/gen_facilities.c
index 0cf802d..be63fbd 100644
--- a/arch/s390/tools/gen_facilities.c
+++ b/arch/s390/tools/gen_facilities.c
@@ -82,6 +82,7 @@ static struct facility_def facility_defs[] = {
78, /* enhanced-DAT 2 */
130, /* instruction-execution-protection */
131, /* enhanced-SOP 2 and side-effect */
+ 146, /* msa extension 8 */
-1 /* END */
}
},
diff --git a/tools/arch/s390/include/uapi/asm/kvm.h b/tools/arch/s390/include/uapi/asm/kvm.h
index a2ffec4..7f4fd65 100644
--- a/tools/arch/s390/include/uapi/asm/kvm.h
+++ b/tools/arch/s390/include/uapi/asm/kvm.h
@@ -131,7 +131,8 @@ struct kvm_s390_vm_cpu_subfunc {
__u8 kmo[16]; /* with MSA4 */
__u8 pcc[16]; /* with MSA4 */
__u8 ppno[16]; /* with MSA5 */
- __u8 reserved[1824];
+ __u8 kma[16]; /* with MSA8 */
+ __u8 reserved[1808];
};
/* kvm attributes for crypto */
--
2.7.4
--
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