Lines Matching refs:microcode
1 Early load microcode
5 Kernel can update microcode in early phase of boot time. Loading microcode early
8 Microcode is stored in an initrd file. The microcode is read from the initrd
11 The format of the combined initrd image is microcode in cpio format followed by
13 during boot time. The microcode file in cpio name space is:
14 on Intel: kernel/x86/microcode/GenuineIntel.bin
15 on AMD : kernel/x86/microcode/AuthenticAMD.bin
17 During BSP boot (before SMP starts), if the kernel finds the microcode file in
18 the initrd file, it parses the microcode and saves matching microcode in memory.
19 If matching microcode is found, it will be uploaded in BSP and later on in all
22 The cached microcode patch is applied when CPUs resume from a sleep state.
24 There are two legacy user space interfaces to load microcode, either through
25 /dev/cpu/microcode or through /sys/devices/system/cpu/microcode/reload file
29 here is the third method with which microcode can be uploaded to a system's
33 /boot/initrd-3.5.0.ucode.img with original microcode microcode.bin and
38 mkdir -p kernel/x86/microcode
39 cp ../microcode.bin kernel/x86/microcode/GenuineIntel.bin (or AuthenticAMD.bin)