Merge tag 'vfio-v7.1-rc1' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - Update QAT vfio-pci variant driver for Gen 5, 420xx devices (Vijay
   Sundar Selvamani, Suman Kumar Chakraborty, Giovanni Cabiddu)

 - Fix vfio selftest MMIO DMA mapping selftest (Alex Mastro)

 - Conversions to const struct class in support of class_create()
   deprecation (Jori Koolstra)

 - Improve selftest compiler compatibility by avoiding initializer on
   variable-length array (Manish Honap)

 - Define new uAPI for drivers supporting migration to advise user-
   space of new initial data for reducing target startup latency.
   Implemented for mlx5 vfio-pci variant driver (Yishai Hadas)

 - Enable vfio selftests on aarch64, not just cross-compiles reporting
   arm64 (Ted Logan)

 - Update vfio selftest driver support to include additional DSA devices
   (Yi Lai)

 - Unconditionally include debugfs root pointer in vfio device struct,
   avoiding a build failure seen in hisi_acc variant driver without
   debugfs otherwise (Arnd Bergmann)

 - Add support for the s390 ISM (Internal Shared Memory) device via a
   new variant driver. The device is unique in the size of its BAR space
   (256TiB) and lack of mmap support (Julian Ruess)

 - Enforce that vfio-pci drivers implement a name in their ops structure
   for use in sequestering SR-IOV VFs (Alex Williamson)

 - Prune leftover group notifier code (Paolo Bonzini)

 - Fix Xe vfio-pci variant driver to avoid migration support as a
   dependency in the reset path and missing release call (Michał
   Winiarski)

* tag 'vfio-v7.1-rc1' of https://github.com/awilliam/linux-vfio: (23 commits)
  vfio/xe: Add a missing vfio_pci_core_release_dev()
  vfio/xe: Reorganize the init to decouple migration from reset
  vfio: remove dead notifier code
  vfio/pci: Require vfio_device_ops.name
  MAINTAINERS: add VFIO ISM PCI DRIVER section
  vfio/ism: Implement vfio_pci driver for ISM devices
  vfio/pci: Rename vfio_config_do_rw() to vfio_pci_config_rw_single() and export it
  vfio: unhide vdev->debug_root
  vfio/qat: add support for Intel QAT 420xx VFs
  vfio: selftests: Support DMR and GNR-D DSA devices
  vfio: selftests: Build tests on aarch64
  vfio/mlx5: Add REINIT support to VFIO_MIG_GET_PRECOPY_INFO
  vfio/mlx5: consider inflight SAVE during PRE_COPY
  net/mlx5: Add IFC bits for migration state
  vfio: Adapt drivers to use the core helper vfio_check_precopy_ioctl
  vfio: Add support for VFIO_DEVICE_FEATURE_MIG_PRECOPY_INFOv2
  vfio: Define uAPI for re-init initial bytes during the PRE_COPY phase
  vfio: selftests: Fix VLA initialisation in vfio_pci_irq_set()
  vfio: uapi: fix comment typo
  vfio: mdev: replace mtty_dev->vd_class with a const struct class
  ...

4 files changed, 17 insertions, 5 deletions

diff --git a/tools/testing/selftests/vfio/Makefile b/tools/testing/selftests/vfio/Makefile
index 8e90e409e91d..0684932d91bf 100644
--- a/tools/testing/selftests/vfio/Makefile
+++ b/tools/testing/selftests/vfio/Makefile
@@ -1,6 +1,6 @@
 ARCH ?= $(shell uname -m)
 
-ifeq (,$(filter $(ARCH),arm64 x86_64))
+ifeq (,$(filter $(ARCH),aarch64 arm64 x86_64))
 # Do nothing on unsupported architectures
 include ../lib.mk
 else
diff --git a/tools/testing/selftests/vfio/lib/drivers/dsa/dsa.c b/tools/testing/selftests/vfio/lib/drivers/dsa/dsa.c
index c75045bcab79..19d9630b24c2 100644
--- a/tools/testing/selftests/vfio/lib/drivers/dsa/dsa.c
+++ b/tools/testing/selftests/vfio/lib/drivers/dsa/dsa.c
@@ -65,9 +65,20 @@ static bool dsa_int_handle_request_required(struct vfio_pci_device *device)
 
 static int dsa_probe(struct vfio_pci_device *device)
 {
-	if (!vfio_pci_device_match(device, PCI_VENDOR_ID_INTEL,
-				   PCI_DEVICE_ID_INTEL_DSA_SPR0))
+	const u16 vendor_id = vfio_pci_config_readw(device, PCI_VENDOR_ID);
+	const u16 device_id = vfio_pci_config_readw(device, PCI_DEVICE_ID);
+
+	if (vendor_id != PCI_VENDOR_ID_INTEL)
+		return -EINVAL;
+
+	switch (device_id) {
+	case PCI_DEVICE_ID_INTEL_DSA_SPR0:
+	case PCI_DEVICE_ID_INTEL_DSA_DMR:
+	case PCI_DEVICE_ID_INTEL_DSA_GNRD:
+		break;
+	default:
 		return -EINVAL;
+	}
 
 	if (dsa_int_handle_request_required(device)) {
 		dev_err(device, "Device requires requesting interrupt handles\n");
diff --git a/tools/testing/selftests/vfio/lib/vfio_pci_device.c b/tools/testing/selftests/vfio/lib/vfio_pci_device.c
index 4e5871f1ebc3..fc75e04ef010 100644
--- a/tools/testing/selftests/vfio/lib/vfio_pci_device.c
+++ b/tools/testing/selftests/vfio/lib/vfio_pci_device.c
@@ -30,10 +30,12 @@
 static void vfio_pci_irq_set(struct vfio_pci_device *device,
 			     u32 index, u32 vector, u32 count, int *fds)
 {
-	u8 buf[sizeof(struct vfio_irq_set) + sizeof(int) * count] = {};
+	u8 buf[sizeof(struct vfio_irq_set) + sizeof(int) * count];
 	struct vfio_irq_set *irq = (void *)&buf;
 	int *irq_fds = (void *)&irq->data;
 
+	memset(buf, 0, sizeof(buf));
+
 	irq->argsz = sizeof(buf);
 	irq->flags = VFIO_IRQ_SET_ACTION_TRIGGER;
 	irq->index = index;
diff --git a/tools/testing/selftests/vfio/vfio_dma_mapping_mmio_test.c b/tools/testing/selftests/vfio/vfio_dma_mapping_mmio_test.c
index 957a89ce7b3a..d7f25ef77671 100644
--- a/tools/testing/selftests/vfio/vfio_dma_mapping_mmio_test.c
+++ b/tools/testing/selftests/vfio/vfio_dma_mapping_mmio_test.c
@@ -100,7 +100,6 @@ static void do_mmio_map_test(struct iommu *iommu,
 		iommu_unmap(iommu, &region);
 	} else {
 		VFIO_ASSERT_NE(__iommu_map(iommu, &region), 0);
-		VFIO_ASSERT_NE(__iommu_unmap(iommu, &region, NULL), 0);
 	}
 }