diff options
| author | Heiko Carstens | 2013-12-30 12:54:14 +0100 |
|---|---|---|
| committer | Christian Borntraeger | 2014-04-22 13:24:38 +0200 |
| commit | 217a440683b51463f53e397cfdda27d7e92bf275 (patch) | |
| tree | fbfb79903b5d5e69d59cbb9adda551c5de000604 /arch/s390 | |
| parent | KVM: s390: add architecture compliant guest access functions (diff) | |
| download | kernel-qcow2-linux-217a440683b51463f53e397cfdda27d7e92bf275.tar.gz kernel-qcow2-linux-217a440683b51463f53e397cfdda27d7e92bf275.tar.xz kernel-qcow2-linux-217a440683b51463f53e397cfdda27d7e92bf275.zip | |
KVM: s390/sclp: correctly set eca siif bit
Check if siif is available before setting.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/sclp.h | 7 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 4 |
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 2f5e9932b4de..943d43451116 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -28,7 +28,11 @@ struct sclp_ipl_info { struct sclp_cpu_entry { u8 address; - u8 reserved0[13]; + u8 reserved0[2]; + u8 : 3; + u8 siif : 1; + u8 : 4; + u8 reserved2[10]; u8 type; u8 reserved1; } __attribute__((packed)); @@ -61,5 +65,6 @@ int sclp_pci_deconfigure(u32 fid); int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode); unsigned long sclp_get_hsa_size(void); void sclp_early_detect(void); +int sclp_has_siif(void); #endif /* _ASM_S390_SCLP_H */ diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 4b1df682e5c3..927ba7361da9 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -625,7 +625,9 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) vcpu->arch.sie_block->ecb |= 0x10; vcpu->arch.sie_block->ecb2 = 8; - vcpu->arch.sie_block->eca = 0xC1002001U; + vcpu->arch.sie_block->eca = 0xC1002000U; + if (sclp_has_siif()) + vcpu->arch.sie_block->eca |= 1; vcpu->arch.sie_block->fac = (int) (long) vfacilities; vcpu->arch.sie_block->ictl |= ICTL_ISKE | ICTL_SSKE | ICTL_RRBE; if (kvm_s390_cmma_enabled(vcpu->kvm)) { |