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🐛 解决了帧缓冲区大小计算错误的问题

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fslongjin
2022-03-02 18:31:23 +08:00
parent e7fd5316fb
commit 9802d67470
3 changed files with 5 additions and 5 deletions
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2
kernel/mm/mm.c
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@ -514,7 +514,7 @@ void init_frame_buffer()
ul vbe_fb_length = get_VBE_FB_length();
ul *tmp1;
// 初始化2M物理页
for (ul i = 0; i < (PAGE_2M_SIZE<<3); i += PAGE_2M_SIZE)
for (ul i = 0; i < (vbe_fb_length<<2); i += PAGE_2M_SIZE)
{
// 计算当前2M物理页对应的pdt的页表项的物理地址
tmp1 = phys_2_virt((ul *)(*tmp & (~0xfffUL)) + (((ul)(fb_virt_addr + i) >> PAGE_2M_SHIFT) & 0x1ff));