lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

KVM: s390: Allow stfle instruction in the guest

Browse Source 
2.6.31-rc introduced an architecture level set checker based on facility
bits. e.g. if the kernel is compiled to run only on z9, several facility
bits are checked very early and the kernel refuses to boot if a z9 specific
facility is missing.
Until now kvm on s390 did not implement the store facility extended (STFLE)
instruction. A 2.6.31-rc kernel that was compiled for z9 or higher did not
boot in kvm. This patch implements stfle.

This patch should go in before 2.6.31.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Christian Borntraeger
2009-06-23 17:24:07 +02:00
committed by Avi Kivity
parent a3f9d3981c
commit ef50f7ac7e
3 changed files with 26 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/s390/include/asm/kvm_host.h
View File

@@ -99,7 +99,9 @@ struct kvm_s390_sie_block {
__u8 reservedd0[48]; /* 0x00d0 */
__u64 gcr[16]; /* 0x0100 */
__u64 gbea; /* 0x0180 */
__u8 reserved188[120]; /* 0x0188 */
__u8 reserved188[24]; /* 0x0188 */
__u32 fac; /* 0x01a0 */
__u8 reserved1a4[92]; /* 0x01a4 */
} __attribute__((packed));
struct kvm_vcpu_stat {