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DragonOS
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Merge branch 'master_fix'

fslongjin 2 years ago
parent
0223232f3f 8bef6058e2
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05ae8dea67
1 changed files with 1 additions and 0 deletions
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      kernel/mm/mm.h

+ 1 - 0
kernel/mm/mm.h
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@@ -13,6 +13,7 @@
 
 #define PAGE_OFFSET (0xffff800000000000UL)
 
 #define KERNEL_BASE_LINEAR_ADDR (0xffff800000000000UL)
 
 #define USER_MAX_LINEAR_ADDR 0x00007fffffffffffUL
 
+// MMIO虚拟地址空间：1TB
 
 #define MMIO_BASE (0xffffa10000000000UL)
 
 #define MMIO_TOP (0xffffa20000000000UL)