dmaengine: idxd: Add a new DSA device ID for Granite Rapids-D platform

A new DSA device ID, 0x11fb, is introduced for the Granite Rapids-D
platform. Add the device ID to the IDXD driver.

Since a potential security issue has been fixed on the new device, it's
secure to assign the device to virtual machines, and therefore, the new
device ID will not be added to the VFIO denylist. Additionally, the new
device ID may be useful in identifying and addressing any other potential
issues with this specific device in the future. The same is also applied
to any other new DSA/IAA devices with new device IDs.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20240828233401.186007-2-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index 21f6905b554d84dbb07d5c9f388e4122a8fe63e6..415b17b0acd0e361f37dc61c744f013159f12662 100644 (file)
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -69,6 +69,8 @@ static struct idxd_driver_data idxd_driver_data[] = {
 static struct pci_device_id idxd_pci_tbl[] = {
        /* DSA ver 1.0 platforms */
        { PCI_DEVICE_DATA(INTEL, DSA_SPR0, &idxd_driver_data[IDXD_TYPE_DSA]) },
+       /* DSA on GNR-D platforms */
+       { PCI_DEVICE_DATA(INTEL, DSA_GNRD, &idxd_driver_data[IDXD_TYPE_DSA]) },
 
        /* IAX ver 1.0 platforms */
        { PCI_DEVICE_DATA(INTEL, IAX_SPR0, &idxd_driver_data[IDXD_TYPE_IAX]) },

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index e388c8b1cbc2769a9bc8c25f524393489fb72fc9..ff99047dac4424b36f00d341bfbdbb6412e92fbd 100644 (file)
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2706,6 +2706,7 @@
 #define PCI_DEVICE_ID_INTEL_82815_MC   0x1130
 #define PCI_DEVICE_ID_INTEL_82815_CGC  0x1132
 #define PCI_DEVICE_ID_INTEL_SST_TNG    0x119a
+#define PCI_DEVICE_ID_INTEL_DSA_GNRD   0x11fb
 #define PCI_DEVICE_ID_INTEL_82092AA_0  0x1221
 #define PCI_DEVICE_ID_INTEL_82437      0x122d
 #define PCI_DEVICE_ID_INTEL_82371FB_0  0x122e