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| author | Christian Borntraeger | 2015-10-07 10:29:42 +0200 |
|---|---|---|
| committer | Cornelia Huck | 2015-10-20 16:21:00 +0200 |
| commit | 2ab75df38e34fe9bc271b5115ab52114e6e63a89 (patch) | |
| tree | 940934d53073989d9a3061d4c1e9fb8fd78a5ee6 | |
| parent | s390x/virtio-ccw: fix 2.4 virtio compat (diff) | |
| download | qemu-2ab75df38e34fe9bc271b5115ab52114e6e63a89.tar.gz qemu-2ab75df38e34fe9bc271b5115ab52114e6e63a89.tar.xz qemu-2ab75df38e34fe9bc271b5115ab52114e6e63a89.zip | |
s390x/kvm: Fix vector validity bit in device machine checks
Device hotplugs trigger a crw machine check. All machine checks
have validity bits for certain register types. With vector support
we also have to claim that vector registers are valid.
This is a band-aid suitable for stable. Long term we should
create the full mcic value dynamically depending on the active
features in the kernel interrupt handler.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
| -rw-r--r-- | target-s390x/kvm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c index 0305ffa9d3..e1acdac114 100644 --- a/target-s390x/kvm.c +++ b/target-s390x/kvm.c @@ -2072,6 +2072,9 @@ void kvm_s390_crw_mchk(void) .u.mchk.cr14 = 1 << 28, .u.mchk.mcic = 0x00400f1d40330000ULL, }; + if (kvm_check_extension(kvm_state, KVM_CAP_S390_VECTOR_REGISTERS)) { + irq.u.mchk.mcic |= 0x0000004000000000ULL; + } kvm_s390_floating_interrupt(&irq); } |