[PATCH v5 14/16] virtio: Use shared mappings for virtio PCI devices
From: Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com>
Date: 2021-10-09 00:39:00
Also in:
linux-alpha, linux-arch, linux-mips, linux-pci, lkml, sparclinux
Subsystem:
the rest, virtio core · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
From: Andi Kleen <redacted> In a TDX guest the pci device mappings of virtio must be shared with the host, so use explicit shared mappings. Signed-off-by: Andi Kleen <redacted> Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> --- Changes since v4: * Replaced pci_iomap_shared_range() with pci_iomap_host_shared_range(). drivers/virtio/virtio_pci_modern_dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/virtio/virtio_pci_modern_dev.c b/drivers/virtio/virtio_pci_modern_dev.c
index e11ed748e661..f29bf45a4642 100644
--- a/drivers/virtio/virtio_pci_modern_dev.c
+++ b/drivers/virtio/virtio_pci_modern_dev.c@@ -83,7 +83,7 @@ vp_modern_map_capability(struct virtio_pci_modern_device *mdev, int off, return NULL; } - p = pci_iomap_range(dev, bar, offset, length); + p = pci_iomap_host_shared_range(dev, bar, offset, length); if (!p) dev_err(&dev->dev, "virtio_pci: unable to map virtio %u@%u on bar %i\n",
--
2.25.1