Messages in this thread | | | From | "Yu, Fenghua" <> | Subject | RE: [PATCH v3 08/10] x86/head64.c: Early update ucode in 64-bit | Date | Tue, 18 Dec 2012 22:55:46 +0000 |
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> From: yhlu.kernel@gmail.com [mailto:yhlu.kernel@gmail.com] On Behalf Of > Yinghai Lu > On Mon, Dec 17, 2012 at 3:30 PM, Yu, Fenghua <fenghua.yu@intel.com> > wrote: > > > > OSV may need the patchset based on old kernel. So I'll have the > patchset ready. Is this the right place to call load_ucode_bsp() in the > upstream kernel? > > > > diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c > > index a512f56..e94b90e 100644 > > --- a/arch/x86/kernel/head64.c > > +++ b/arch/x86/kernel/head64.c > > @@ -93,6 +88,11 @@ void __init x86_64_start_kernel(char * > real_mode_data) > > } > > load_idt((const struct desc_ptr *)&idt_descr); > > > > + /* > > + * Load microcode early on BSP. > > + */ > > + load_ucode_bsp(__va(real_mode_data)); > > + > > if (console_loglevel == 10) > > early_printk("Kernel alive\n"); > > > it has to be after #PF handler set page table patch... > > otherwise when ramdisk is above 1G, customer will get early PF > exception.
If based on your for_x86_boot tree, is load_ucode_bsp() called afer load_idt()?
Thanks.
-Fenghua
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