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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>
This commit is contained in:
Jan Kiszka 2009-04-30 10:17:39 +02:00 committed by Anthony Liguori
parent 582af0da2a
commit e6f4afe029
1 changed files with 9 additions and 1 deletions
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10
kvm-all.c
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@ -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();
}