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From: "Cédric Le Goater" <clg@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Alex Williamson" <alex.williamson@redhat.com>,
	"Zhenzhong Duan" <zhenzhong.duan@intel.com>,
	"Steve Sistare" <steven.sistare@oracle.com>,
	"Cédric Le Goater" <clg@redhat.com>
Subject: [PULL 03/12] vfio/iommufd: Set cpr.ioas_id on source side for CPR transfer
Date: Wed, 22 Oct 2025 14:18:37 +0200	[thread overview]
Message-ID: <20251022121846.874152-4-clg@redhat.com> (raw)
In-Reply-To: <20251022121846.874152-1-clg@redhat.com>

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

On source side, if there are more than one VFIO devices and they
attach to same container, only the first device sets cpr.ioas_id,
the others are bypassed. We should set it for each device, or
else only first device works.

Fixes: 4296ee07455e ("vfio/iommufd: reconstruct device")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Steve Sistare <steven.sistare@oracle.com>
Link: https://lore.kernel.org/qemu-devel/20250928085432.40107-4-zhenzhong.duan@intel.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 hw/vfio/iommufd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c
index 68470d552eccc67afbf757de192ba53431e4840b..63a16d4dc1795d359ff298bcddda292d1e03028e 100644
--- a/hw/vfio/iommufd.c
+++ b/hw/vfio/iommufd.c
@@ -602,7 +602,6 @@ skip_ioas_alloc:
     container->be = vbasedev->iommufd;
     container->ioas_id = ioas_id;
     QLIST_INIT(&container->hwpt_list);
-    vbasedev->cpr.ioas_id = ioas_id;
 
     bcontainer = VFIO_IOMMU(container);
     vfio_address_space_insert(space, bcontainer);
@@ -636,6 +635,8 @@ skip_ioas_alloc:
     bcontainer->initialized = true;
 
 found_container:
+    vbasedev->cpr.ioas_id = container->ioas_id;
+
     ret = ioctl(devfd, VFIO_DEVICE_GET_INFO, &dev_info);
     if (ret) {
         error_setg_errno(errp, errno, "error getting device info");
-- 
2.51.0



  parent reply	other threads:[~2025-10-22 12:19 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-22 12:18 [PULL 00/12] vfio queue Cédric Le Goater
2025-10-22 12:18 ` [PULL 01/12] vfio/container: Remap only populated parts in a section Cédric Le Goater
2025-10-22 12:18 ` [PULL 02/12] vfio/cpr-legacy: drop an erroneous assert Cédric Le Goater
2025-10-22 12:18 ` Cédric Le Goater [this message]
2025-10-22 12:18 ` [PULL 04/12] vfio/iommufd: Restore vbasedev's reference to hwpt after CPR transfer Cédric Le Goater
2025-10-22 12:18 ` [PULL 05/12] accel/kvm: Fix an erroneous check on coalesced_mmio_ring Cédric Le Goater
2025-10-22 12:18 ` [PULL 06/12] vfio/container: Support unmap all in one ioctl() Cédric Le Goater
2025-10-22 12:18 ` [PULL 07/12] vfio/iommufd: " Cédric Le Goater
2025-10-22 12:18 ` [PULL 08/12] vfio/listener: Add an assertion for unmap_all Cédric Le Goater
2025-10-22 12:18 ` [PULL 09/12] docs/system/devices/vfio-user: fix formatting Cédric Le Goater
2025-10-22 12:18 ` [PULL 10/12] MAINTAINERS: Update Alex Williamson's email address Cédric Le Goater
2025-10-22 12:18 ` [PULL 11/12] vfio: rename field to "num_initial_regions" Cédric Le Goater
2025-10-22 12:18 ` [PULL 12/12] vfio: only check region info cache for initial regions Cédric Le Goater
2025-10-22 12:55 ` [PULL 00/12] vfio queue Cédric Le Goater
2025-10-23  9:53   ` Michael Tokarev
2025-10-23 12:16     ` Cédric Le Goater
2025-10-22 14:31 ` Richard Henderson

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