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authorLinus Torvalds <torvalds@linux-foundation.org>2026-09-20 08:15:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-09-20 08:15:23 -0700
commitbdab18633a302c82b5e5d5dbc4e38b0baf9c0837 (patch)
tree0446500af9a76d4e8b2a72a0a41391ceede73a10 /Documentation/ABI/testing/sysfs-driver-ccp
downloadlinux-stable-bdab18633a302c82b5e5d5dbc4e38b0baf9c0837.tar.gz
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Merge tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipgrafted
Pull futex fix from Ingo Molnar: - Also allocate a default private futex hash on vfork() as well, to avoid races with (private) futex waiters (Peter Zijlstra) * tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex: Also allocate private hash on vfork()
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+What: /sys/bus/pci/devices/<BDF>/fused_part
+Date: June 2022
+KernelVersion: 5.19
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/fused_part file reports
+ whether the CPU or APU has been fused to prevent tampering.
+ 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
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/debug_lock_on reports
+ whether the AMD CPU or APU has been unlocked for debugging.
+ Possible values:
+ 0: Not locked
+ 1: Locked
+
+What: /sys/bus/pci/devices/<BDF>/tsme_status
+Date: June 2022
+KernelVersion: 5.19
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/tsme_status file reports
+ the status of transparent secure memory encryption on AMD systems.
+ Possible values:
+ 0: Not active
+ 1: Active
+
+What: /sys/bus/pci/devices/<BDF>/anti_rollback_status
+Date: June 2022
+KernelVersion: 5.19
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/anti_rollback_status file reports
+ whether the PSP is enforcing rollback protection.
+ Possible values:
+ 0: Not enforcing
+ 1: Enforcing
+
+What: /sys/bus/pci/devices/<BDF>/rpmc_production_enabled
+Date: June 2022
+KernelVersion: 5.19
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/rpmc_production_enabled file reports
+ whether Replay Protected Monotonic Counter support has been enabled.
+ Possible values:
+ 0: Not enabled
+ 1: Enabled
+
+What: /sys/bus/pci/devices/<BDF>/rpmc_spirom_available
+Date: June 2022
+KernelVersion: 5.19
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/rpmc_spirom_available file reports
+ whether an Replay Protected Monotonic Counter supported SPI is installed
+ on the system.
+ Possible values:
+ 0: Not present
+ 1: Present
+
+What: /sys/bus/pci/devices/<BDF>/hsp_tpm_available
+Date: June 2022
+KernelVersion: 5.19
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/hsp_tpm_available file reports
+ whether the HSP TPM has been activated.
+ Possible values:
+ 0: Not activated or present
+ 1: Activated
+
+What: /sys/bus/pci/devices/<BDF>/rom_armor_enforced
+Date: June 2022
+KernelVersion: 5.19
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/rom_armor_enforced file reports
+ whether RomArmor SPI protection is enforced.
+ Possible values:
+ 0: Not enforced
+ 1: Enforced
+
+What: /sys/bus/pci/devices/<BDF>/bootloader_version
+Date: June 2023
+KernelVersion: 6.4
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/bootloader_version
+ file reports the firmware version of the AMD AGESA
+ bootloader.
+
+What: /sys/bus/pci/devices/<BDF>/tee_version
+Date: June 2023
+KernelVersion: 6.4
+Contact: mario.limonciello@amd.com
+Description:
+ The /sys/bus/pci/devices/<BDF>/tee_version
+ file reports the firmware version of the AMD Trusted
+ Execution Environment (TEE).