[SeaBIOS] [PATCH] vcpu hotplug: Setup vcpu add/remove infrastructure
Liu, Jinsong
jinsong.liu at intel.com
Mon Feb 1 15:31:30 CET 2010
Kevin O'Connor wrote:
> On Sat, Jan 30, 2010 at 11:10:43PM +0800, Jiang, Yunhong wrote:
>> For how to setup the memory as NVS, you can refer to src/memmap.c,
>> maybe using add_e820().
>
> Adding to the e820 is simple. Just align the madt to 4k:
>
> madt_size = ALIGN(madt_size, PAGE_SIZE);
> struct multiple_apic_table *madt = memalign_high(PAGE_SIZE,
> madt_size);
>
> and then add it to the e820:
>
> add_e820((u64)madt, madt_size, E820_NVS);
>
> It's not strictly necessary to align to 4k, but I think it makes sense
> to do that.
>
> -Kevin
Gleb, Yunhong, and Connor,
Thank you all for help me review and give me valuable suggestion!
I read ACPI spec 4.0 and think Gleb is correct.
I update my patch accordingly as attached, please help me to review it.
Best Regards,
Jinsong
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