[RFC PATCH 03/21] pci: Define TEE-IO bit in PCIe device capabilities

Alexey Kardashevskiy
2024-08-23T13:28:15Z

A new bit #30 from the PCI Express Device Capabilities Register is defined
in PCIe 6.1 as "TEE Device Interface Security Protocol (TDISP)".

Define the macro.

Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
---
include/uapi/linux/pci_regs.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index 94c00996e633..0011a301b8c5 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -498,6 +498,7 @@
#define PCI_EXP_DEVCAP_PWR_VAL 0x03fc0000 /* Slot Power Limit Value */
#define PCI_EXP_DEVCAP_PWR_SCL 0x0c000000 /* Slot Power Limit Scale */
#define PCI_EXP_DEVCAP_FLR 0x10000000 /* Function Level Reset */
+#define PCI_EXP_DEVCAP_TEE_IO 0x40000000 /* TEE-IO Supported (TDISP) */
#define PCI_EXP_DEVCTL 0x08 /* Device Control */
#define PCI_EXP_DEVCTL_CERE 0x0001 /* Correctable Error Reporting En. */
#define PCI_EXP_DEVCTL_NFERE 0x0002 /* Non-Fatal Error Reporting Enable */
--
2.45.2