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enable cache for our user-level task

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This commit is contained in:
Stefan Lankes 2014-12-05 07:26:24 +01:00
parent 4f6792e3c2
commit 2eaa7589ee
1 changed files with 2 additions and 2 deletions
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4
kernel/main.c
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@ -82,13 +82,13 @@ static int wrapper(void* arg)
// dirty hack, map userfoo to the user space
size_t phys = page_virt_to_phys(((size_t) userfoo) & PAGE_MASK);
size_t vuserfoo = 0x40000000;
page_map(vuserfoo, phys, 2, PG_PRESENT | PG_RW | PG_PCD | PG_USER);
page_map(vuserfoo, phys, 2, PG_PRESENT | PG_USER);
vuserfoo += (size_t)userfoo & 0xFFF;
// dirty hack, map ustack to the user space
phys = page_virt_to_phys((size_t) ustack);
size_t vstack = 0x80000000;
page_map(vstack, phys, KERNEL_STACK_SIZE >> PAGE_BITS, PG_PRESENT | PG_RW | PG_PCD | PG_USER);
page_map(vstack, phys, KERNEL_STACK_SIZE >> PAGE_BITS, PG_PRESENT | PG_RW | PG_USER);
vstack = (vstack + KERNEL_STACK_SIZE - 16 - sizeof(size_t));
return jump_to_user_code(vuserfoo, vstack);