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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:14:23 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:14:23 +0000
commitdcfb98cf8931dc6bce38eff8e1c82972e1adf484 (patch)
tree5395e7ca0effa58c164a86740b6470cbb47fe05e /arch/s390/kvm/priv.c
parentAdding upstream version 6.9.8. (diff)
downloadlinux-dcfb98cf8931dc6bce38eff8e1c82972e1adf484.tar.xz
linux-dcfb98cf8931dc6bce38eff8e1c82972e1adf484.zip
Adding upstream version 6.9.9.upstream/6.9.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/s390/kvm/priv.c')
-rw-r--r--arch/s390/kvm/priv.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 1be19cc9d7..1a49b89706 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -797,6 +797,36 @@ static int handle_lpswe(struct kvm_vcpu *vcpu)
return 0;
}
+static int handle_lpswey(struct kvm_vcpu *vcpu)
+{
+ psw_t new_psw;
+ u64 addr;
+ int rc;
+ u8 ar;
+
+ vcpu->stat.instruction_lpswey++;
+
+ if (!test_kvm_facility(vcpu->kvm, 193))
+ return kvm_s390_inject_program_int(vcpu, PGM_OPERATION);
+
+ if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
+ return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
+
+ addr = kvm_s390_get_base_disp_siy(vcpu, &ar);
+ if (addr & 7)
+ return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
+ rc = read_guest(vcpu, addr, ar, &new_psw, sizeof(new_psw));
+ if (rc)
+ return kvm_s390_inject_prog_cond(vcpu, rc);
+
+ vcpu->arch.sie_block->gpsw = new_psw;
+ if (!is_valid_psw(&vcpu->arch.sie_block->gpsw))
+ return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
+ return 0;
+}
+
static int handle_stidp(struct kvm_vcpu *vcpu)
{
u64 stidp_data = vcpu->kvm->arch.model.cpuid;
@@ -1462,6 +1492,8 @@ int kvm_s390_handle_eb(struct kvm_vcpu *vcpu)
case 0x61:
case 0x62:
return handle_ri(vcpu);
+ case 0x71:
+ return handle_lpswey(vcpu);
default:
return -EOPNOTSUPP;
}