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authorChristian Borntraeger <borntraeger@de.ibm.com>2009-06-23 17:24:06 +0200
committerAvi Kivity <avi@redhat.com>2009-09-10 08:33:01 +0300
commit3eea8437f61ca1f9192d146124425e759c3e5758 (patch)
treeae32ee0c2b33c0fc771a9ff3f7519ef2f6e8b9af /virt
parent4668f050787015805a7e8ea29cc4f81d8f07cedb (diff)
downloadlinux-linaro-stable-3eea8437f61ca1f9192d146124425e759c3e5758.tar.gz
KVM: s390: Fix memslot initialization for userspace_addr != 0
Since commit 854b5338196b1175706e99d63be43a4f8d8ab607 Author: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> KVM: s390: streamline memslot handling s390 uses the values of the memslot instead of doing everything in the arch ioctl handler of the KVM_SET_USER_MEMORY_REGION. Unfortunately we missed to set the userspace_addr of our memslot due to our s390 ifdef in __kvm_set_memory_region. Old s390 userspace launchers did not notice, since they started the guest at userspace address 0. Because of CONFIG_DEFAULT_MMAP_MIN_ADDR we now put the guest at 1M userspace, which does not work. This patch makes sure that new.userspace_addr is set on s390. This fix should go in quickly. Nevertheless, looking at the code we should clean up that ifdef in the long term. Any kernel janitors? Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/kvm_main.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 04bdeddebdac..1da8072d61b1 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1199,6 +1199,10 @@ int __kvm_set_memory_region(struct kvm *kvm,
if (old.npages)
kvm_arch_flush_shadow(kvm);
}
+#else /* not defined CONFIG_S390 */
+ new.user_alloc = user_alloc;
+ if (user_alloc)
+ new.userspace_addr = mem->userspace_addr;
#endif /* not defined CONFIG_S390 */
if (!npages)