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authorAvi Kivity <avi@qumranet.com>2007-01-06 03:36:50 +0300
committerLinus Torvalds <torvalds@woody.osdl.org>2007-01-06 10:55:26 +0300
commit139bdb2d9e410d448281057a37b53770324ccac8 (patch)
tree35bd78df2e50b008e4dfb9477336bacb75b06252
parent5f1e0b6abcc100a79528387207adc3dd92aa5374 (diff)
downloadlinux-sunxi-139bdb2d9e410d448281057a37b53770324ccac8.tar.xz
[PATCH] KVM: MMU: If an empty shadow page is not empty, report more info
Signed-off-by: Avi Kivity <avi@qumranet.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/kvm/mmu.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index b9ba240144b7..8cf3688f7e70 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -305,12 +305,16 @@ static void rmap_write_protect(struct kvm *kvm, u64 gfn)
static int is_empty_shadow_page(hpa_t page_hpa)
{
- u32 *pos;
- u32 *end;
- for (pos = __va(page_hpa), end = pos + PAGE_SIZE / sizeof(u32);
+ u64 *pos;
+ u64 *end;
+
+ for (pos = __va(page_hpa), end = pos + PAGE_SIZE / sizeof(u64);
pos != end; pos++)
- if (*pos != 0)
+ if (*pos != 0) {
+ printk(KERN_ERR "%s: %p %llx\n", __FUNCTION__,
+ pos, *pos);
return 0;
+ }
return 1;
}