diff mbox series

[07/27] drm/i915/gvt: Use an "unsigned long" to iterate over memslot gfns

Message ID 20221223005739.1295925-8-seanjc@google.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/gvt: KVM: KVMGT fixes and page-track cleanups | expand

Commit Message

Sean Christopherson Dec. 23, 2022, 12:57 a.m. UTC 
Use an "unsigned long" instead of an "int" when iterating over the gfns
in a memslot.  The number of pages in the memslot is tracked as an
"unsigned long", e.g. KVMGT could theoretically break if a KVM memslot
larger than 16TiB were deleted (2^32 * 4KiB).

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 6f358b4fe406..5d0e029d60d7 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1635,7 +1635,7 @@  static void kvmgt_page_track_flush_slot(struct kvm *kvm,
 		struct kvm_memory_slot *slot,
 		struct kvm_page_track_notifier_node *node)
 {
-	int i;
+	unsigned long i;
 	gfn_t gfn;
 	struct intel_vgpu *info =
 		container_of(node, struct intel_vgpu, track_node);