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Borislav Petkov (AMD) dbdec47842 x86/microcode/AMD: Flush patch buffer mapping after application

commit c809b0d0e5 upstream.

Due to specific requirements while applying microcode patches on Zen1
and 2, the patch buffer mapping needs to be flushed from the TLB after
application. Do so.

If not, unnecessary and unnatural delays happen in the boot process.

Reported-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Cc: <stable@kernel.org> # f1d84b59cb ("x86/mm: Carve out INVLPG inline asm for use by others")
Link: https://lore.kernel.org/r/ZyulbYuvrkshfsd2@antipodes
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-12-05 14:02:57 +01:00

boot

…

coco

x86/tdx: Dynamically disable SEPT violations from causing #VEs

2024-12-05 14:02:11 +01:00

configs

…

crypto

crypto: x86/aegis128 - access 32-bit arguments as 32-bit

2024-12-05 14:02:43 +01:00

entry