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Look up the kernel environment for MAXMEM as a final override for the

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memory size.  If somebody wants to change the name, fine - I used this
since it's consistant with the config variable it replaces.
This is intended to replace the npx0 msize hack (which no longer works).
This commit is contained in:
peter 1999-07-01 18:33:22 +00:00
parent 12d5777cd5
commit bf0087145c
2 changed files with 18 additions and 6 deletions
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12
sys/amd64/amd64/machdep.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
* $Id: machdep.c,v 1.345 1999/06/28 15:34:54 luoqi Exp $
* $Id: machdep.c,v 1.346 1999/07/01 18:27:15 peter Exp $
*/
#include "apm.h"
@ -1141,9 +1141,7 @@ getmemsize(int first)
u_int64_t length;
u_int32_t type;
} *smap;
#if NNPX > 0
int msize;
#endif
bzero(&vmf, sizeof(struct vm86frame));
bzero(physmap, sizeof(physmap));
@ -1354,6 +1352,14 @@ getmemsize(int first)
}
#endif
/* Allow final override from the kernel environment */
if (getenv_int("MAXMEM", &msize)) {
if (msize != 0) {
Maxmem = msize / 4;
speculative_mprobe = FALSE;
}
}
#ifdef SMP
/* look for the MP hardware - needed for apic addresses */
mp_probe();

12
sys/i386/i386/machdep.c
View File

@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
* $Id: machdep.c,v 1.345 1999/06/28 15:34:54 luoqi Exp $
* $Id: machdep.c,v 1.346 1999/07/01 18:27:15 peter Exp $
*/
#include "apm.h"
@ -1141,9 +1141,7 @@ getmemsize(int first)
u_int64_t length;
u_int32_t type;
} *smap;
#if NNPX > 0
int msize;
#endif
bzero(&vmf, sizeof(struct vm86frame));
bzero(physmap, sizeof(physmap));
@ -1354,6 +1352,14 @@ getmemsize(int first)
}
#endif
/* Allow final override from the kernel environment */
if (getenv_int("MAXMEM", &msize)) {
if (msize != 0) {
Maxmem = msize / 4;
speculative_mprobe = FALSE;
}
}
#ifdef SMP
/* look for the MP hardware - needed for apic addresses */
mp_probe();