1 What: /sys/kernel/debug/cxl/memX/inj
2 Date: April, 2023
3 KernelVersion: v6.4
4 Contact: linux-cxl@vger.kernel.org
5 Description:
6 (WO) When a Device Physical Ad
7 attribute, the memdev driver s
8 the device for the specified a
9 aligned and the length of the
10 successful, the device returns
11 accessed through the CXL.mem b
12 address to the device's Poison
13 to Injected. In addition, the
14 event to its internal Informat
15 Event Status register, and if
16 It is not an error to inject p
17 already has poison present and
18 device returns 'Inject Poison
19 is returned to the user. The i
20 visible for devices supporting
21
22
23 What: /sys/kernel/debug/memX/clear_p
24 Date: April, 2023
25 KernelVersion: v6.4
26 Contact: linux-cxl@vger.kernel.org
27 Description:
28 (WO) When a Device Physical Ad
29 attribute, the memdev driver s
30 the device for the specified a
31 the address from the device's
32 for 64 bytes starting at addre
33 poison from an address that do
34 device cannot clear poison fro
35 The clear_poison attribute is
36 supporting the capability.
37
38 What: /sys/kernel/debug/cxl/einj_typ
39 Date: January, 2024
40 KernelVersion: v6.9
41 Contact: linux-cxl@vger.kernel.org
42 Description:
43 (RO) Prints the CXL protocol e
44 the platform in the format:
45
46 0x<error number> <erro
47
48 The possible error types are (
49
50 0x1000 CXL.cache Prot
51 0x2000 CXL.cache Prot
52 0x4000 CXL.cache Prot
53 0x8000 CXL.mem Protoc
54 0x10000 CXL.mem Protoc
55 0x20000 CXL.mem Protoc
56
57 The <error number> can be writ
58 <error type> into a chosen dpo
59
60 What: /sys/kernel/debug/cxl/$dport_d
61 Date: January, 2024
62 KernelVersion: v6.9
63 Contact: linux-cxl@vger.kernel.org
64 Description:
65 (WO) Writing an integer to thi
66 CXL protocol error into $dport
67 name from /sys/bus/pci/devices
68 injection can be found by read
69 was enumerated in RCH mode, a
70 a CXL 2.0 error is injected.
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