Author: alc
Date: Thu Oct 23 21:02:40 2014
New Revision: 273558
URL: https://svnweb.freebsd.org/changeset/base/273558
Log:
Under PAE ULONG is insufficient for representing the physical memory size.
Use QUAD
for "hw.physmem" so that a physical memory size greater than 4 GB can be
specified
from the boot loader.
Modified:
head/sys/i386/i386/machdep.c
Modified: head/sys/i386/i386/machdep.c
==============================================================================
--- head/sys/i386/i386/machdep.c Thu Oct 23 20:43:16 2014
(r273557)
+++ head/sys/i386/i386/machdep.c Thu Oct 23 21:02:40 2014
(r273558)
@@ -2463,10 +2463,10 @@ static void
getmemsize(int first)
{
int has_smap, off, physmap_idx, pa_indx, da_indx;
- u_long physmem_tunable, memtest;
+ u_long memtest;
vm_paddr_t physmap[PHYSMAP_SIZE];
pt_entry_t *pte;
- quad_t dcons_addr, dcons_size;
+ quad_t dcons_addr, dcons_size, physmem_tunable;
#ifndef XEN
int hasbrokenint12, i, res;
u_int extmem;
@@ -2650,7 +2650,7 @@ physmap_done:
Maxmem = MAXMEM / 4;
#endif
- if (TUNABLE_ULONG_FETCH("hw.physmem", &physmem_tunable))
+ if (TUNABLE_QUAD_FETCH("hw.physmem", &physmem_tunable))
Maxmem = atop(physmem_tunable);
/*
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