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authorChristian Borntraeger <borntraeger@de.ibm.com>2011-09-20 17:07:29 +0200
committerHeiko Carstens <heiko.carstens@de.ibm.com>2011-09-20 17:07:34 +0200
commitb6cf8788a3382c2000743a0e393bcc8aeb0601cb (patch)
tree3af86a59e2884f66068019571ce725e81878b5cf /include/linux/kvm.h
parent480e5926ce3bb61ec229be2dab08bdce8abb8d2e (diff)
[S390] kvm: extension capability for new address space layout
598841ca9919d008b520114d8a4378c4ce4e40a1 ([S390] use gmap address spaces for kvm guest images) changed kvm on s390 to use a separate address space for kvm guests. We can now put KVM guests anywhere in the user address mode with a size up to 8PB - as long as the memory is 1MB-aligned. This change was done without KVM extension capability bit. The change was added after 3.0, but we still have a chance to add a feature bit before 3.1 (keeping the releases in a sane state). We use number 71 to avoid collisions with other pending kvm patches as requested by Alexander Graf. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Avi Kivity <avi@redhat.com> Cc: Alexander Graf <agraf@suse.de> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'include/linux/kvm.h')
-rw-r--r--include/linux/kvm.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 2c366b52f505..aace6b8691a2 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -553,6 +553,7 @@ struct kvm_ppc_pvinfo {
#define KVM_CAP_SPAPR_TCE 63
#define KVM_CAP_PPC_SMT 64
#define KVM_CAP_PPC_RMA 65
+#define KVM_CAP_S390_GMAP 71
#ifdef KVM_CAP_IRQ_ROUTING