On 13/08/19 8:33 PM, Mahesh J Salgaonkar wrote: > On 2019-07-16 17:03:30 Tue, Hari Bathini wrote: >> Firmware uses 32-bit field for region size while copying/backing-up >> memory during MPIPL. So, the maximum copy size for a region would >> be a page less than 4GB (aligned to pagesize) but FADump capture >> kernel usually needs more memory than that to be preserved to avoid >> running into out of memory errors. >> >> So, request firmware to copy multiple kernel memory regions instead >> of just one (which worked fine for pseries as 64-bit field was used >> for size there). With support to copy multiple kernel memory regions, >> also handle holes in the memory area to be preserved. Support as many >> as 128 kernel memory regions. This allows having an adequate FADump >> capture kernel size for different scenarios. > > Can you split this patch into 2 ? One for handling holes in boot memory > and other for handling 4Gb region size ? So that it will be easy to > review changes. Sure. Let me split and have the patch that handles holes in boot memory as the last patch in the series.
- [PATCH v4 10/25] powernv/fadump: add fadump su... Hari Bathini
- [PATCH v4 11/25] powernv/fadump: register kern... Hari Bathini
- Re: [PATCH v4 11/25] powernv/fadump: regi... Mahesh J Salgaonkar
- Re: [PATCH v4 11/25] powernv/fadump: ... Hari Bathini
- Re: [PATCH v4 11/25] powernv/fadu... Mahesh Jagannath Salgaonkar
- [PATCH v4 12/25] powernv/fadump: define regist... Hari Bathini
- Re: [PATCH v4 12/25] powernv/fadump: defi... Mahesh J Salgaonkar
- Re: [PATCH v4 12/25] powernv/fadump: ... Hari Bathini
- [PATCH v4 13/25] powernv/fadump: support copyi... Hari Bathini
- Re: [PATCH v4 13/25] powernv/fadump: supp... Mahesh J Salgaonkar
- Re: [PATCH v4 13/25] powernv/fadump: ... Hari Bathini
- [PATCH v4 14/25] powernv/fadump: process the c... Hari Bathini
- Re: [PATCH v4 14/25] powernv/fadump: proc... Mahesh J Salgaonkar
- Re: [PATCH v4 14/25] powernv/fadump: ... Hari Bathini
- [PATCH v4 15/25] powerpc/fadump: Update docume... Hari Bathini
- [PATCH v4 16/25] powerpc/fadump: consider rese... Hari Bathini
- [PATCH v4 07/25] pseries/fadump: move out plat... Hari Bathini
- Re: [PATCH v4 07/25] pseries/fadump: move... Mahesh J Salgaonkar
- [PATCH v4 17/25] powerpc/fadump: consider rese... Hari Bathini
- [PATCH v4 18/25] powernv/fadump: process archi... Hari Bathini
- Re: [PATCH v4 18/25] powernv/fadump: proc... Mahesh J Salgaonkar