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| author | Kan Liang <[email protected]> | 2019-02-04 22:23:29 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2019-02-11 06:59:23 +0000 |
| commit | 0f42b790c9ba5ec2f25b7da8b0b6d361082d67b0 (patch) | |
| tree | 8e4ac678e108e774930756ac4e477389eb66b129 /drivers/fpga/fpga-region.c | |
| parent | x86/CPU/AMD: Set the CPB bit unconditionally on F17h (diff) | |
| download | kernel-0f42b790c9ba5ec2f25b7da8b0b6d361082d67b0.tar.gz kernel-0f42b790c9ba5ec2f25b7da8b0b6d361082d67b0.zip | |
x86/cpufeature: Add facility to check for min microcode revisions
For bug workarounds or checks, it is useful to check for specific
microcode revisions.
Add a new generic function to match the CPU with stepping.
Add the other function to check the min microcode revisions for
the matched CPU.
A new table format is introduced to facilitate the quirk to
fill the related information.
This does not change the existing x86_cpu_id because it's an ABI
shared with modules, and also has quite different requirements,
as in no wildcards, but everything has to be matched exactly.
Originally-by: Andi Kleen <[email protected]>
Suggested-by: Thomas Gleixner <[email protected]>
Signed-off-by: Kan Liang <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Borislav Petkov <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'drivers/fpga/fpga-region.c')
0 files changed, 0 insertions, 0 deletions