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| author | Mario Limonciello <mario.limonciello@amd.com> | 2026-01-22 21:34:53 -0600 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2026-02-06 18:36:08 +0800 |
| commit | 90f7520b76fab89852287d78ed7919a647c68c1d (patch) | |
| tree | ee15625ea8474da2d3ccfbe377cc80eb8225db44 /Documentation/ABI | |
| parent | 64ae90a81aa4a5e51d0b4c2e836778ef40295651 (diff) | |
| download | linux-next-90f7520b76fab89852287d78ed7919a647c68c1d.tar.gz linux-next-90f7520b76fab89852287d78ed7919a647c68c1d.zip | |
crypto: ccp - Add sysfs attribute for boot integrity
The boot integrity attribute represents that the CPU or APU is used for the
hardware root of trust in the boot process. This bit only represents the
CPU/APU and some vendors have other hardware root of trust implementations
specific to their designs.
Link: https://github.com/fwupd/fwupd/pull/9825
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-ccp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-ccp b/Documentation/ABI/testing/sysfs-driver-ccp index ee6b787eee7a..6ec74b9a292a 100644 --- a/Documentation/ABI/testing/sysfs-driver-ccp +++ b/Documentation/ABI/testing/sysfs-driver-ccp @@ -8,6 +8,21 @@ Description: 0: Not fused 1: Fused +What: /sys/bus/pci/devices/<BDF>/boot_integrity +Date: April 2026 +KernelVersion: 6.20 +Contact: mario.limonciello@amd.com +Description: + The /sys/bus/pci/devices/<BDF>/boot_integrity reports + whether the AMD CPU or APU is used for a hardware root of trust + during the boot process. + Possible values: + 0: Not hardware root of trust. + 1: Hardware root of trust + + NOTE: Vendors may provide design specific alternative hardware + root of trust implementations. + What: /sys/bus/pci/devices/<BDF>/debug_lock_on Date: June 2022 KernelVersion: 5.19 |