[v1] vfio queue

[PULL 08/12] vfio/listener: Add an assertion for unmap_all

Cédric Le Goater posted 12 patches 3 weeks, 2 days ago

Diff against v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v1 v2 v2 v2 v2
Download mbox

Maintainers: Paolo Bonzini <pbonzini@redhat.com>, John Levon <john.levon@nutanix.com>, Thanos Makatos <thanos.makatos@nutanix.com>, "Cédric Le Goater" <clg@redhat.com>, Eric Farman <farman@linux.ibm.com>, Matthew Rosato <mjrosato@linux.ibm.com>, Thomas Huth <thuth@redhat.com>, Alex Williamson <alex@shazbot.org>, Steve Sistare <steven.sistare@oracle.com>

There is a newer version of this series

Expand all Fold all

[PULL 08/12] vfio/listener: Add an assertion for unmap_all

Posted by Cédric Le Goater 3 weeks, 2 days ago

From: Zhenzhong Duan <zhenzhong.duan@intel.com>

Currently the maximum of iommu address space is 64bit. So when a maximum
iommu memory section is deleted, it's in scope [0, 2^64). Add a
assertion for that.

Suggested-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20251009040134.334251-4-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 hw/vfio/listener.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/vfio/listener.c b/hw/vfio/listener.c
index 1b6e5065a3267ab08d2d3fea3c5b4965a80947e8..2d7d3a464577ee258fac869e508e1b79aef2b53e 100644
--- a/hw/vfio/listener.c
+++ b/hw/vfio/listener.c
@@ -715,6 +715,7 @@ static void vfio_listener_region_del(MemoryListener *listener,
         bool unmap_all = false;
 
         if (int128_eq(llsize, int128_2_64())) {
+            assert(!iova);
             unmap_all = true;
             llsize = int128_zero();
         }
-- 
2.51.0