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authorHeiko Carstens <heiko.carstens@de.ibm.com>2013-12-30 12:54:14 +0100
committerChristian Borntraeger <borntraeger@de.ibm.com>2014-04-22 13:24:38 +0200
commit217a440683b51463f53e397cfdda27d7e92bf275 (patch)
treefbfb79903b5d5e69d59cbb9adda551c5de000604 /arch
parent2293897805c2fea69e45aca31b3589d4590af89d (diff)
downloadop-kernel-dev-217a440683b51463f53e397cfdda27d7e92bf275.zip
op-kernel-dev-217a440683b51463f53e397cfdda27d7e92bf275.tar.gz
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')
-rw-r--r--arch/s390/include/asm/sclp.h7
-rw-r--r--arch/s390/kvm/kvm-s390.c4
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 2f5e993..943d434 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 4b1df68..927ba73 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)) {
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