lkml.org 
[lkml]   [2006]   [Jan]   [7]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateSat, 7 Jan 2006 01:43:22 -0800
Fromyhlu <>
SubjectRe: Inclusion of x86_64 memorize ioapic at bootup patch
andi,

In LinuxBIOS, we don't set the MPS 0x467 and the AP still can be started by BSP.

are these really needed for x86_64?

        Dprintk("Setting warm reset code and vector.\n");

        CMOS_WRITE(0xa, 0xf);
        local_flush_tlb();
        Dprintk("1.\n");
        *((volatile unsigned short *) phys_to_virt(0x469)) = start_rip >> 4;
        Dprintk("2.\n");
        *((volatile unsigned short *) phys_to_virt(0x467)) = start_rip & 0xf;
        Dprintk("3.\n");

the STARTUP IPI should work well with MPS v1.4

YH
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-01-07 09:45    [from the cache]
©2003-2008