forked from pool/kernel-firmware
Thomas Renninger
f1685d8cbd
This is needed because microcode driver is built in or gets loaded
automatically via udev early. Therefore the microcode has to be available
in initrd already.
This must not be mixed up with early micorcode loading. This feature will
not be implemented via mkinitrd. Dracut is doing early microcode loading.
- bnc#847158
- mkinitrd scripts:
- mkinitrd_setup-amd_microcode.sh
Adding microcode to the initrd
- mkinitrd_boot-amd_microcode.sh
Triggering the reload at boot
on machines with AMD CPUs
OBS-URL: https://build.opensuse.org/package/show/Kernel:HEAD/kernel-firmware?expand=0&rev=74
37 lines
1.3 KiB
Bash
37 lines
1.3 KiB
Bash
#/bin/bash
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#%stage: boot
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#
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# Adds AMD microcode to the initrd
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#
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# If processor(s) are upgraded on the system, mkinitrd has to be re-called
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# manually to include a possible other needed firmware to the initrd
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#
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if grep -q -i AuthenticAMD /proc/cpuinfo; then
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echo -n "Microcode: "
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if [ ! -e /lib/firmware/amd-ucode ];then
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echo "AMD microcode not found, amd-ucode package not installed?"
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return 0
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fi
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fam=`head /proc/cpuinfo |sed -n -e 's/cpu family.*: \([0-9]\+\)/\1/p'`
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# Only try to update when family >= 16 (0x10, fam 10h)
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if [ $fam -ge 16 >& /dev/null ];then
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# Family 0x15 firmware is named: microcode_amd_famXXh.bin"
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if [ $fam -lt 21 >& /dev/null ];then
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file=microcode_amd.bin
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else
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file=`printf "microcode_amd_fam%xh.bin" $fam`
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fi
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if [ -e /lib/firmware/amd-ucode ];then
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echo "Adding AMD microcode $file"
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mkdir -p $tmp_mnt/lib/firmware/amd-ucode
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cp /lib/firmware/amd-ucode/"$file"* $tmp_mnt/lib/firmware/amd-ucode
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else
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echo "No AMD microcode found, amd-ucode package not installed?"
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fi
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else
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printf "AMD CPU family: 0x%x does not support microcode updates" $fam
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fi
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fi
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