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Code Issues Releases Wiki Activity

修复内存空间未初始化的问题

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This commit is contained in:
fslongjin 2022-04-23 12:55:13 +08:00
parent 5ec1b825e6
commit dee231d9b8
1 changed files with 2 additions and 0 deletions
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2
kernel/mm/mm.c
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@ -634,6 +634,7 @@ void mm_map_proc_page_table(ul *proc_page_table_addr, bool is_phys, ul virt_addr
if (*tmp == 0)
{
ul *virt_addr = kmalloc(PAGE_4K_SIZE, 0);
memset(virt_addr, 0, PAGE_4K_SIZE);
set_pml4t(tmp, mk_pml4t(virt_2_phys(virt_addr), (user ? PAGE_USER_PGT : PAGE_KERNEL_PGT)));
}
kdebug("*tmp = %#018lx", *tmp);
@ -646,6 +647,7 @@ void mm_map_proc_page_table(ul *proc_page_table_addr, bool is_phys, ul virt_addr
if (*tmp == 0)
{
ul *virt_addr = kmalloc(PAGE_4K_SIZE, 0);
memset(virt_addr, 0, PAGE_4K_SIZE);
set_pdpt(tmp, mk_pdpt(virt_2_phys(virt_addr), (user ? PAGE_USER_DIR : PAGE_KERNEL_DIR)));
}