---

yaml --- r: 297150 b: refs/heads/master c: 9eed073 h: refs/heads/master v: v3
git-mirror · Mar 8, 2012 · c568a08 · c568a08
1 parent a1363a3
commit c568a08
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Showing 3 changed files with 11 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9ec2d6dc6c4d4792b85dec2f09d39387fb7157d1
+refs/heads/master: 9eed0735ca6a5cf386a4998ad4b6d52d1e29353f
diff --git a/trunk/arch/s390/include/asm/kvm.h b/trunk/arch/s390/include/asm/kvm.h
@@ -44,10 +44,12 @@ struct kvm_guest_debug_arch {
 #define KVM_SYNC_PREFIX (1UL << 0)
 #define KVM_SYNC_GPRS   (1UL << 1)
 #define KVM_SYNC_ACRS   (1UL << 2)
+#define KVM_SYNC_CRS    (1UL << 3)
 /* definition of registers in kvm_run */
 struct kvm_sync_regs {
 	__u64 prefix;	/* prefix register */
 	__u64 gprs[16];	/* general purpose registers */
 	__u32 acrs[16];	/* access registers */
+	__u64 crs[16];	/* control registers */
 };
 #endif
diff --git a/trunk/arch/s390/kvm/kvm-s390.c b/trunk/arch/s390/kvm/kvm-s390.c
@@ -291,7 +291,8 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 	vcpu->arch.gmap = vcpu->kvm->arch.gmap;
 	vcpu->run->kvm_valid_regs = KVM_SYNC_PREFIX |
 				    KVM_SYNC_GPRS |
-				    KVM_SYNC_ACRS;
+				    KVM_SYNC_ACRS |
+				    KVM_SYNC_CRS;
 	return 0;
 }
 
@@ -580,6 +581,11 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 		kvm_run->kvm_dirty_regs &= ~KVM_SYNC_PREFIX;
 		kvm_s390_set_prefix(vcpu, kvm_run->s.regs.prefix);
 	}
+	if (kvm_run->kvm_dirty_regs & KVM_SYNC_CRS) {
+		kvm_run->kvm_dirty_regs &= ~KVM_SYNC_CRS;
+		memcpy(&vcpu->arch.sie_block->gcr, &kvm_run->s.regs.crs, 128);
+		kvm_s390_set_prefix(vcpu, kvm_run->s.regs.prefix);
+	}
 
 	might_fault();
 
@@ -629,6 +635,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	kvm_run->psw_mask     = vcpu->arch.sie_block->gpsw.mask;
 	kvm_run->psw_addr     = vcpu->arch.sie_block->gpsw.addr;
 	kvm_run->s.regs.prefix = vcpu->arch.sie_block->prefix;
+	memcpy(&kvm_run->s.regs.crs, &vcpu->arch.sie_block->gcr, 128);
 
 	if (vcpu->sigset_active)
 		sigprocmask(SIG_SETMASK, &sigsaved, NULL);