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use flag PG_GLOBAL to map the video memory

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This commit is contained in:
Stefan Lankes 2014-12-14 23:41:24 +01:00
parent 8cc32095af
commit 75b39829f8
1 changed files with 2 additions and 2 deletions
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4
arch/x86/mm/page.c
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@ -256,11 +256,11 @@ int page_init()
/* Map kernel */
addr = (size_t) &kernel_start;
npages = PAGE_FLOOR((size_t) &kernel_end - (size_t) &kernel_start) >> PAGE_BITS;
page_map(addr, addr, npages, PG_RW | /* PG_USER | */ PG_GLOBAL);
page_map(addr, addr, npages, PG_RW | PG_GLOBAL);
#ifdef CONFIG_VGA
/* Map video memory */
page_map(VIDEO_MEM_ADDR, VIDEO_MEM_ADDR, 1, PG_RW | PG_PCD);
page_map(VIDEO_MEM_ADDR, VIDEO_MEM_ADDR, 1, PG_RW | PG_PCD | PG_GLOBAL);
#endif
/* Map multiboot information and modules */