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[Qemu-commits] [COMMIT f1a9736] kvm: Relax aligment check of kvm_set_phy
From: |
Anthony Liguori |
Subject: |
[Qemu-commits] [COMMIT f1a9736] kvm: Relax aligment check of kvm_set_phys_mem |
Date: |
Fri, 01 May 2009 15:05:15 -0000 |
From: Jan Kiszka <address@hidden>
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 <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>
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 @@ void kvm_set_phys_mem(target_phys_addr_t start_addr,
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();
}
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