内核 虚拟地址空间 划分讨论

[guoren83]

csky_32:(User:Kernel = 2G:2G)
Fixmap : 0xffc02000 – 0xffffe000 (4MB)
Pkmap : 0xff800000 – 0xffc00000 (4MB)
Vmalloc : 0xc0008000 – 0xff7fe000 (1GB - 9MB)
Lowmem : 0x80000000 – 0xc0000000 (1GB)

arm_32:(User:Kernel = 3G:1G)
Fixmap : 0xffc00000 – 0xffffffff (4MB)
Vmalloc : 0xf0800000 – 0xff800000 (240 MB)
Lowmem : 0xc0000000 – 0xf0000000 (768 MB)
Pkmap : 0xbfe00000 – 0xc0000000 (2 MB)
Modules : 0xbf000000 – 0xbfe00000 (14 MB/6MB)

X86_32: (User:Kernel = 3G:1G)
Fixmap : 0xfff4f000 – 0xfffff000 (704 KB)
Pkmap : 0xff800000 – 0xffc00000 (4 MB)
Vmalloc : 0xf8800000 – 0xff7fe000 (111 MB)
Lowmem : 0xc0000000 – 0xf8000000 (896 MB)

[guoren83]

如果您发现 C-SKY 虚拟地址划分有任何不妥，请告诉我们，万分感谢