Re: [coreboot] microcode blob or ascii

[galla rao]

Thanks Jose,

My actual query is FSP Binary also has below ucode update  which is same to
coreboot\src\cpu\intel\microcode\microcode.c

msr.lo = (unsigned long)m + sizeof(struct microcode);
msr.hi = 0;
wrmsr(0x79, msr);

Atom E3845 BayTrail with D-Stepping never returns after writing uCode,
tried different ucode revisions

On Mon, Oct 1, 2018 at 1:49 PM Jose Trujillo 
wrote:
> Hello Ranga:
> It is ASCII just not properly formatted....
>
> Just remove the text from this:
>
> 0x00000001, /* Header Version */
> 0x00000901, /* Patch ID       */
> 0x04212014, /* DATE           */
> 0x00030679, /* CPUID          */
> 0x69c4e6f1, /* Checksum       */
> 0x00000001, /* Loader Version */
> 0x00000001, /* Platform ID    */
> 0x0000cbd0, /* Data size      */
> 0x0000cc00, /* Total size     */
> 0x00000000, /* reserved       */
> 0x00000000, /* reserved       */
> 0x00000000, /* reserved       */
>
> to this format:
>
> 0x00000001, \
> 0x00000901, \
> 0x04212014, \
> 0x00030679, \
> 0x69c4e6f1, \
> 0x00000001, \
> 0x00000001, \
> 0x0000cbd0, \
> 0x0000cc00, \
> 0x00000000, \
> 0x00000000, \
> 0x00000000,
>
> And try again...
> Jose Trujillo.
>
> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> On Friday, September 28, 2018 7:28 PM, galla rao 
> wrote:
>
> Hi ,
>
> How does the coreboot picks the cpu microcodes
>
> as a blob or ASCII ?
>
> Tried both option GENERATE FROM TREE and INCLUDE EXTERNAL HEADER
>
> In Memory it appears it picks the ASCII file, but not a blob
>
> intel/cpu/baytrail/microcode/M0130679901.h
>
> 0x00000001, /* Header Version */
> 0x00000901, /* Patch ID       */
> 0x04212014, /* DATE           */
> 0x00030679, /* CPUID          */
> 0x69c4e6f1, /* Checksum       */
> 0x00000001, /* Loader Version */
> 0x00000001, /* Platform ID    */
> 0x0000cbd0, /* Data size      */
> 0x0000cc00, /* Total size     */
> 0x00000000, /* reserved       */
> 0x00000000, /* reserved       */
> 0x00000000, /* reserved       */
>
> Help me out in understanding this issue
>
> Regards
> Ranga