Linux kernel latest source http://mirrors.hust.edu.cn/git/linux-next.git/atom?h=master 2026-08-10T08:28:55+00:00 2026-08-10T08:28:55+00:00 Randy Dunlap rdunlap@infradead.org 2026-07-30T05:17:10+00:00 urn:sha1:389a3c294ae914efd1681f5355b07ed8b439678d Use plain C "/*" notation for comments that are not in kernel-doc format to avoid kernel-doc warnings: Warning: include/uapi/linux/psp-sfs.h:18 expecting prototype for SFS(). Prototype was for PAYLOAD_NAME_SIZE() instead Warning: include/uapi/linux/psp-sfs.h:46 This comment starts with '/**', but isn't a kernel-doc comment. * Seamless Firmware Support (SFS) IOC Fixes: 648dbccc03a0 ("crypto: ccp - Add AMD Seamless Firmware Servicing (SFS) driver") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 2025-09-17T10:17:05+00:00 Ashish Kalra ashish.kalra@amd.com 2025-09-16T21:29:49+00:00 urn:sha1:648dbccc03a000cd64c2a9d86012d98053545e64 AMD Seamless Firmware Servicing (SFS) is a secure method to allow non-persistent updates to running firmware and settings without requiring BIOS reflash and/or system reset. SFS does not address anything that runs on the x86 processors and it can be used to update ASP firmware, modules, register settings and update firmware for other microprocessors like TMPM, etc. SFS driver support adds ioctl support to communicate the SFS commands to the ASP/PSP by using the TEE mailbox interface. The Seamless Firmware Servicing (SFS) driver is added as a PSP sub-device. For detailed information, please look at the SFS specifications: https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/specifications/58604.pdf Signed-off-by: Ashish Kalra <ashish.kalra@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Link: https://lore.kernel.org/cover.1758057691.git.ashish.kalra@amd.com