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Round memory size up for VM.

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This commit is contained in:
Philip Homburg 2007-04-23 14:38:55 +00:00
parent b5e6319ae7
commit 77f5b40141
1 changed files with 4 additions and 0 deletions
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4
servers/pm/main.c
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@ -442,6 +442,7 @@ struct mem_map *map_ptr; /* memory to remove */
}
#define PAGE_SIZE 4096
#define PAGE_DIR_SIZE (1024*PAGE_SIZE)
#define PAGE_TABLE_COVER (1024*PAGE_SIZE)
/*=========================================================================*
* do_x86_vm *
@ -468,6 +469,9 @@ struct memory mem_chunks[NR_MEMS];
#if VERBOSE_VM
printf("do_x86_vm: found high 0x%x\n", high);
#endif
/* Rounding up */
high= (high-1+PAGE_DIR_SIZE) & ~(PAGE_DIR_SIZE-1);
/* The number of pages we need is one for the page directory, enough
* page tables to cover the memory, and one page for alignement.