commit e6f4afe029ae21853fd6625d94e9e0b2caa4defd
author Jan Kiszka <jan.kiszka@siemens.com> Thu Apr 30 10:17:39 2009 +0200
committer Anthony Liguori <aliguori@us.ibm.com> Fri May 01 09:38:33 2009 -0500
tree f1a9736c76effb3245b102657a70ecea6cfbbc9b
parent 582af0da2a65784e431c2c5ed3a003a35c5587f7

kvm: Relax aligment check of kvm_set_phys_mem

There is no need to reject an unaligned memory region registration if
the region will be I/O memory and it will not split an existing KVM
slot. This fixes KVM support on PPC.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

kvm-all.c

diff --git a/kvm-all.c b/kvm-all.c
index 32cd636..0da5c7a 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -583,7 +583,15 @@
     int err;
 
     if (start_addr & ~TARGET_PAGE_MASK) {
-        fprintf(stderr, "Only page-aligned memory slots supported\n");
+        if (flags >= IO_MEM_UNASSIGNED) {
+            if (!kvm_lookup_overlapping_slot(s, start_addr,
+                                             start_addr + size)) {
+                return;
+            }
+            fprintf(stderr, "Unaligned split of a KVM memory slot\n");
+        } else {
+            fprintf(stderr, "Only page-aligned memory slots supported\n");
+        }
         abort();
     }