Messages in this thread |  | | Subject | Re: [RFC/RFT PATCH 0/6] Switch GHES ioremap_page_range() to use fixmap | | From | Tyler Baicar <> | | Date | Tue, 31 Oct 2017 14:46:36 -0400 |
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On 10/31/2017 11:38 AM, James Morse wrote: > GHES is doing ioremap_page_range() in both NMI and irq context, neither > are safe as it may sleep to allocate intermediate levels of page table. > > Replace the NMI/irq GHES_IOREMAP_PAGES to use a fixmap entry each. > > After this nothing uses ghes_ioremap_area or arch_apei_flush_tlb_one(), > rip them out. > > RFC as I've only build-tested this on x86. For arm64 I've tested it on a > software model. Any more testing would be welcome. These patches are based > on rc7. For the arm64 and APEI patches: Tested-by: Tyler Baicar <tbaicar@codeaurora.org>
Verified on arm64. I no longer see the BUGs in the GHES code. Thanks!
Tyler
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