Hi guys , I tested kernel 4.6 with the built in microcode method , following Documentation/x86/early-microcode.txt.
The kernel config[1] has : CONFIG_FIRMWARE_IN_KERNEL=y CONFIG_EXTRA_FIRMWARE="intel-ucode/06-1a-05" CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware" also CONFIG_MICROCODE=y CONFIG_MICROCODE_INTEL=y CONFIG_MICROCODE_AMD=y CONFIG_MICROCODE_OLD_INTERFACE=y I also use a basic initrd generated with dracut. With this kernel the early microcode loading does nothing nor the 'old interface'. Interesting is the following : doing a ' echo 1 >/sys/devices/system/cpu/microcode/reload ' the kernel finds the buitin firmware and updates the microcode. ... [ 713.273956] platform microcode: firmware: using built-in firmware intel-ucode/06-1a-05 [ 713.274024] microcode: CPU0 sig=0x106a5, pf=0x1, revision=0x15 [ 713.274596] microcode: CPU0 updated to revision 0x19, date = 2013-06-21 ... Also the method with the 'combined initrd' works just fine. [1] http://crazy.dnshome.de/~crazy/lkml/config/config Please CC me since I'm not subscribed to the list. Best Regards, Gabriel C ( sorry but gmail messed up so I resend )
