pm24.git/arch/x86/kernel/cpu/microcode, branch rust-6.13

x86/microcode/AMD: Fix a -Wsometimes-uninitialized clang false positive

2024-07-30T07:52:43Z

Initialize equiv_id in order to shut up: arch/x86/kernel/cpu/microcode/amd.c:714:6: warning: variable 'equiv_id' is \ used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] if (x86_family(bsp_cpuid_1_eax) < 0x17) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ because clang doesn't do interprocedural analysis for warnings to see that this variable won't be used uninitialized. Fixes: 94838d230a6c ("x86/microcode/AMD: Use the family,model,stepping encoded in the patch ID") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202407291815.gJBST0P3-lkp@intel.com/ Signed-off-by: Borislav Petkov (AMD)

x86/microcode/AMD: Use the family,model,stepping encoded in the patch ID

2024-07-29T07:21:26Z

On Zen and newer, the family, model and stepping is part of the microcode patch ID so that the equivalence table the driver has been using, is not needed anymore. So switch the driver to use that from now on. The equivalence table in the microcode blob should still remain in case there's need to pass some additional information to the kernel loader. Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20240725112037.GBZqI1BbUk1KMlOJ_D@fat_crate.local

Merge tag 'x86_microcode_for_v6.10_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2024-05-14T16:09:32Z

Pull x86 microcode loader updates from Borislav Petkov: - Fix a clang-15 build warning and other cleanups * tag 'x86_microcode_for_v6.10_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode: Remove unused struct cpu_info_ctx x86/microcode/AMD: Remove unused PATCH_MAX_SIZE macro x86/microcode/AMD: Avoid -Wformat warning with clang-15

x86/microcode: Remove unused struct cpu_info_ctx

2024-05-06T09:00:57Z

This looks unused since 2071c0aeda22 ("x86/microcode: Simplify init path even more") Signed-off-by: Dr. David Alan Gilbert Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20240506004300.770564-1-linux@treblig.org

x86/microcode/intel: Switch to new Intel CPU model defines

2024-04-29T08:31:26Z

New CPU #defines encode vendor and family as well as model. Signed-off-by: Tony Luck Signed-off-by: Dave Hansen Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/all/20240424181513.41829-1-tony.luck%40intel.com

x86/microcode/AMD: Remove unused PATCH_MAX_SIZE macro

2024-04-05T21:33:08Z

Orphaned after 05e91e721138 ("x86/microcode/AMD: Rip out static buffers") No functional changes. Signed-off-by: Borislav Petkov (AMD)

x86/microcode/AMD: Avoid -Wformat warning with clang-15

2024-04-05T21:26:18Z

Older versions of clang show a warning for amd.c after a fix for a gcc warning: arch/x86/kernel/cpu/microcode/amd.c:478:47: error: format specifies type \ 'unsigned char' but the argument has type 'u16' (aka 'unsigned short') [-Werror,-Wformat] "amd-ucode/microcode_amd_fam%02hhxh.bin", family); ~~~~~~ ^~~~~~ %02hx In clang-16 and higher, this warning is disabled by default, but clang-15 is still supported, and it's trivial to avoid by adapting the types according to the range of the passed data and the format string. [ bp: Massage commit message. ] Fixes: 2e9064faccd1 ("x86/microcode/amd: Fix snprintf() format string warning in W=1 build") Signed-off-by: Arnd Bergmann Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/20240405204919.1003409-1-arnd@kernel.org

x86/cpu/topology: Get rid of cpuinfo::x86_max_cores

2024-02-16T14:51:32Z

Now that __num_cores_per_package and __num_threads_per_package are available, cpuinfo::x86_max_cores and the related math all over the place can be replaced with the ready to consume data. Signed-off-by: Thomas Gleixner Tested-by: Michael Kelley Tested-by: Sohil Mehta Link: https://lore.kernel.org/r/20240213210253.176147806@linutronix.de

x86/microcode/intel: Set new revision only after a successful update

2023-12-03T10:49:53Z

This was meant to be done only when early microcode got updated successfully. Move it into the if-branch. Also, make sure the current revision is read unconditionally and only once. Fixes: 080990aa3344 ("x86/microcode: Rework early revisions reporting") Reported-by: Ashok Raj Signed-off-by: Borislav Petkov (AMD) Tested-by: Ashok Raj Link: https://lore.kernel.org/r/ZWjVt5dNRjbcvlzR@a4bf019067fa.jf.intel.com

x86/microcode/intel: Remove redundant microcode late updated message

2023-12-01T17:52:01Z

After successful update, the late loading routine prints an update summary similar to: microcode: load: updated on 128 primary CPUs with 128 siblings microcode: revision: 0x21000170 -> 0x21000190 Remove the redundant message in the Intel side of the driver. [ bp: Massage commit message. ] Signed-off-by: Ashok Raj Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/r/ZWjYhedNfhAUmt0k@a4bf019067fa.jf.intel.com