Commit 139bdb2d authored by Avi Kivity's avatar Avi Kivity Committed by Linus Torvalds

[PATCH] KVM: MMU: If an empty shadow page is not empty, report more info

Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
Acked-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 5f1e0b6a
...@@ -305,12 +305,16 @@ static void rmap_write_protect(struct kvm *kvm, u64 gfn) ...@@ -305,12 +305,16 @@ static void rmap_write_protect(struct kvm *kvm, u64 gfn)
static int is_empty_shadow_page(hpa_t page_hpa) static int is_empty_shadow_page(hpa_t page_hpa)
{ {
u32 *pos; u64 *pos;
u32 *end; u64 *end;
for (pos = __va(page_hpa), end = pos + PAGE_SIZE / sizeof(u32);
for (pos = __va(page_hpa), end = pos + PAGE_SIZE / sizeof(u64);
pos != end; pos++) pos != end; pos++)
if (*pos != 0) if (*pos != 0) {
printk(KERN_ERR "%s: %p %llx\n", __FUNCTION__,
pos, *pos);
return 0; return 0;
}
return 1; return 1;
} }
......
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