diff options
| author | David Hildenbrand <dahi@linux.vnet.ibm.com> | 2016-03-04 11:23:55 (GMT) |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-05-09 11:33:55 (GMT) |
| commit | bd50e8ec8f668de472b3bf782ac95866056257dd (patch) | |
| tree | 0b49017ce942c3647db44934f177f096515d3d25 /arch/s390/kvm | |
| parent | d6af0b491b1f675e5e5a12c5587f804c698a6ba5 (diff) | |
| download | linux-bd50e8ec8f668de472b3bf782ac95866056257dd.tar.xz | |
KVM: s390: enable SRS only if enabled for the guest
If we don't have SIGP SENSE RUNNING STATUS enabled for the guest, let's
not enable interpretation so we can correctly report an invalid order.
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 4 | ||||
| -rw-r--r-- | arch/s390/kvm/sigp.c | 6 |
2 files changed, 9 insertions, 1 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 13b3f5e..e1e375c 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -1645,7 +1645,9 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) kvm_s390_vcpu_setup_model(vcpu); - vcpu->arch.sie_block->ecb = 6; + vcpu->arch.sie_block->ecb = 0x02; + if (test_kvm_facility(vcpu->kvm, 9)) + vcpu->arch.sie_block->ecb |= 0x04; if (test_kvm_facility(vcpu->kvm, 50) && test_kvm_facility(vcpu->kvm, 73)) vcpu->arch.sie_block->ecb |= 0x10; diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index 77c22d6..28ea0ca 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -240,6 +240,12 @@ static int __sigp_sense_running(struct kvm_vcpu *vcpu, struct kvm_s390_local_interrupt *li; int rc; + if (!test_kvm_facility(vcpu->kvm, 9)) { + *reg &= 0xffffffff00000000UL; + *reg |= SIGP_STATUS_INVALID_ORDER; + return SIGP_CC_STATUS_STORED; + } + li = &dst_vcpu->arch.local_int; if (atomic_read(li->cpuflags) & CPUSTAT_RUNNING) { /* running */ |