x86/PCI: VMD: Attach VMD resources to parent domain's resource tree (2c2c5c5c) · Commits · 戴 / test

arch/x86/pci/vmd.c

+16 −0

Original line number	Diff line number	Diff line
		@@ -503,6 +503,18 @@ static struct pci_ops vmd_ops = {
		.write = vmd_pci_write,
		};

		static void vmd_attach_resources(struct vmd_dev *vmd)
		{
		vmd->dev->resource[VMD_MEMBAR1].child = &vmd->resources[1];
		vmd->dev->resource[VMD_MEMBAR2].child = &vmd->resources[2];
		}

		static void vmd_detach_resources(struct vmd_dev *vmd)
		{
		vmd->dev->resource[VMD_MEMBAR1].child = NULL;
		vmd->dev->resource[VMD_MEMBAR2].child = NULL;
		}

		/*
		* VMD domains start at 0x1000 to not clash with ACPI _SEG domains.
		*/
		@@ -559,6 +571,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd)
		.start = res->start,
		.end = res->end,
		.flags = flags,
		.parent = res,
		};

		res = &vmd->dev->resource[VMD_MEMBAR2];
		@@ -571,6 +584,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd)
		.start = res->start + 0x2000,
		.end = res->end,
		.flags = flags,
		.parent = res,
		};

		sd->domain = vmd_find_free_domain();
		@@ -595,6 +609,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd)
		return -ENODEV;
		}

		vmd_attach_resources(vmd);
		vmd_setup_dma_ops(vmd);
		dev_set_msi_domain(&vmd->bus->dev, vmd->irq_domain);
		pci_rescan_bus(vmd->bus);
		@@ -691,6 +706,7 @@ static void vmd_remove(struct pci_dev *dev)
		{
		struct vmd_dev *vmd = pci_get_drvdata(dev);

		vmd_detach_resources(vmd);
		pci_set_drvdata(dev, NULL);
		sysfs_remove_link(&vmd->dev->dev.kobj, "domain");
		pci_stop_root_bus(vmd->bus);