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Under PAE ULONG is insufficient for representing the physical memory size. Use QUAD

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for "hw.physmem" so that a physical memory size greater than 4 GB can be specified
from the boot loader.
This commit is contained in:
Alan Cox 2014-10-23 21:02:40 +00:00
parent a4432e6bf7
commit 9f10ddb8f6
1 changed files with 3 additions and 3 deletions
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6
sys/i386/i386/machdep.c
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@ -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 @@ getmemsize(int first)
Maxmem = MAXMEM / 4;
#endif
if (TUNABLE_ULONG_FETCH("hw.physmem", &physmem_tunable))
if (TUNABLE_QUAD_FETCH("hw.physmem", &physmem_tunable))
Maxmem = atop(physmem_tunable);
/*