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One more low address

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This commit is contained in:
Frans Kaashoek 2011-08-09 23:22:48 -04:00
parent 8a9933a200
commit 673b739d31
1 changed files with 3 additions and 1 deletions
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4
lapic.c
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@ -3,6 +3,7 @@
#include "types.h"
#include "defs.h"
#include "memlayout.h"
#include "traps.h"
#include "mmu.h"
#include "x86.h"
@ -135,6 +136,7 @@ microdelay(int us)
// Start additional processor running bootstrap code at addr.
// See Appendix B of MultiProcessor Specification.
void
lapicstartap(uchar apicid, uint addr)
{
int i;
@ -145,7 +147,7 @@ lapicstartap(uchar apicid, uint addr)
// the AP startup code prior to the [universal startup algorithm]."
outb(IO_RTC, 0xF); // offset 0xF is shutdown code
outb(IO_RTC+1, 0x0A);
wrv = (ushort*)(0x40<<4 | 0x67); // Warm reset vector
wrv = (ushort*)P2V((0x40<<4 | 0x67)); // Warm reset vector
wrv[0] = 0;
wrv[1] = addr >> 4;