CS-444/jos
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Fix permissions.

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This commit is contained in:
Danila Fedorin
2019-04-23 17:09:54 -07:00
parent f0e2ab8abd
commit f4e3196494
1 changed files with 3 additions and 3 deletions
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6
kern/pmap.c
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@@ -183,8 +183,8 @@ mem_init(void)
// Your code goes here: // Your code goes here:
boot_map_region(kern_pgdir, boot_map_region(kern_pgdir,
UPAGES, ROUNDUP(pages_size, PGSIZE), UPAGES, ROUNDUP(pages_size, PGSIZE),
PADDR(pages), PTE_W); PADDR(pages), PTE_U);
kern_pgdir[PDX(UPAGES)] |= PTE_U | PTE_P; kern_pgdir[PDX(UPAGES)] |= PTE_U;
kern_pgdir[PDX(UPAGES)] &= ~PTE_W; kern_pgdir[PDX(UPAGES)] &= ~PTE_W;
////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////
@@ -196,7 +196,7 @@ mem_init(void)
// LAB 3: Your code here. // LAB 3: Your code here.
boot_map_region(kern_pgdir, boot_map_region(kern_pgdir,
UENVS, ROUNDUP(envs_size, PGSIZE), UENVS, ROUNDUP(envs_size, PGSIZE),
PADDR(envs), PTE_W); PADDR(envs), PTE_U);
kern_pgdir[PDX(UENVS)] |= PTE_U; kern_pgdir[PDX(UENVS)] |= PTE_U;
kern_pgdir[PDX(UPAGES)] &= ~PTE_W; kern_pgdir[PDX(UPAGES)] &= ~PTE_W;