On 11/27/2018 12:12 PM, petecb via coreboot wrote:
Hi,
Thanks for your reply.
I have built a version of coreboot with the “use binary only repo” and “generate microcode updates from tree”. I presume by selecting “from tree” I do not need to fill in the “Mircrocode binary path and filename”.
Yeah you don't since it is done automatically with both of those options selected.
The output of the make command to build the rom provides the following at the end:
FMAP REGION: COREBOOT Name Offset Type Size Comp cbfs master header 0x0 cbfs header 32 none fallback/romstage 0x80 stage 171020 none config 0x29d00 raw 281 none revision 0x29e80 raw 576 none cmos_layout.bin 0x2a100 cmos_layout 3524 none fallback/dsdt.aml 0x2af00 raw 9895 none payload_config 0x2d600 raw 1682 none payload_revision 0x2dd00 raw 236 none microcode_amd_fam15h.bin 0x2de40 microcode 7876 none (empty) 0x2fd80 null 24 none s3nv 0x2fdc0 raw 65536 none fallback/ramstage 0x3fe00 stage 88643 none vgaroms/seavgabios.bin 0x55880 raw 28160 none img/coreinfo 0x5c700 simple elf 50606 none fallback/payload 0x68d00 simple elf 68119 none img/memtest 0x79780 simple elf 47555 none microcode_amd.bin 0x85180 microcode 12684 none
Looks to be there now.
Here from your serial log:
CBFS: 'Master Header Locator' located CBFS at [200:200000) CBFS: Locating 'microcode_amd.bin' CBFS: Found @ offset 85180 size 318c CBFS: 'Master Header Locator' located CBFS at [200:200000) CBFS: Locating 'microcode_amd_fam15h.bin' CBFS: Found @ offset 2de40 size 1ec4 [microcode] patch id to apply = 0x06000852 [microcode] updated to patch id = 0x06000852 success
*852 is the latest version AFAIK so you are good.
(empty) 0x88380 null 1537368 none bootblock 0x1ff900 bootblock 1184 none
From this it looks as though it is being built with the microcode. If I boot into a Fedora Live CD dmesg does show me that the AMD microcode is being applied. > However I presume this is Fedora doing this because when I boot into Qubes it does not detect IOMMU.
It looks like a xen issue.
Does this indicate an issue with how I have built coreboot?
No now it is fine.
It should be working hmm but next try the below solution.
Is there a way to get Qubes to apply microcode updates in the same way Fedora does?
Xen yes. Edit /etc/default/grub (ex: sudo nano /etc/default/grub) Add ucode=scan to GRUB_CMDLINE_XEN_DEFAULT inside the quotes Then run sudo grub2-mkconfig -o /boot/grub2/grub.cfg
Have you successfully got a 6386 on this board running with Qubes and all the microcode updates?
Yeah I have with various 63xx CPU's.
I have attached a copy of my serial output booting the system with 2 sticks of 16Gb ECC RAM (32Gb total) in case this is of any help.
Put your RAM back in that would not effect anything :]
Many thanks for your help, it is much appreciated.
Hell yeah bro I love helping fellow freedom lovers. I like to do the free tech support stuff the coreboot devs don't have time for.
Did you check out the sexy new raptor blackbird btw? OpenPOWER is the future of high performance computing freedom.