Messages in this thread | | | Date | Tue, 10 Apr 2018 10:32:03 +0800 | From | zoucao-ipc <> | Subject | Re: [PATCH] free e820 reserved memory in bootargs memmap |
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I found commit characters errors, please ignore this path, V2 will be sent soon
On 2018/4/8 下午2:41, zoucao@linux.alibaba.com wrote: > add a new chareater "-" in bootargs memmap, you can use this chareater to free > e820 reserved memory, for example: > > reserved iomem: > cat /proc/iomem: > ...... > 00100000-6aefefff : System RAM > 01000000-0165537a : Kernel code > 0165537b-01a8873f : Kernel data > 01c31000-01f4efff : Kernel bss > 28000000-320fffff : Crash kernel > 6aeff000-6effffff : reserved --> it is e820 reserved memory > 6f000000-78240fff : System RAM > ...... > > > add bootargs memmap=0x4101000-0x6aeff000, to free memory region: 6aeff000-6effffff > then 6aeff000-6effffff will be merged into 00100000-78240fff. > > new iomem: > cat /proc/iomem: > ...... > 00100000-78240fff : System RAM > 01000000-0165537a : Kernel code > 0165537b-01a8873f : Kernel data > 01c31000-01f4efff : Kernel bss > ......
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