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Comment inituvm and loaduvm

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This commit is contained in:
Austin Clements 2010-09-02 16:39:55 -04:00
parent 93a1e4cb07
commit 9a4670a138
1 changed files with 4 additions and 0 deletions
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4
vm.c
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@ -193,6 +193,8 @@ uva2ka(pde_t *pgdir, char *uva)
return (char *)pa; return (char *)pa;
} }
// Load the initcode into address 0 of pgdir.
// sz must be less than a page.
void void
inituvm(pde_t *pgdir, char *init, uint sz) inituvm(pde_t *pgdir, char *init, uint sz)
{ {
@ -204,6 +206,8 @@ inituvm(pde_t *pgdir, char *init, uint sz)
memmove(mem, init, sz); memmove(mem, init, sz);
} }
// Load a program segment into pgdir. addr must be page-aligned
// and the pages from addr to addr+sz must already be mapped.
int int
loaduvm(pde_t *pgdir, char *addr, struct inode *ip, uint offset, uint sz) loaduvm(pde_t *pgdir, char *addr, struct inode *ip, uint offset, uint sz)
{ {