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4f89fa286f
Replace ghes_io{re,un}map_pfn_{nmi,irq}()s use of ioremap_page_range() with __set_fixmap() as ioremap_page_range() may sleep to allocate a new level of page-table, even if its passed an existing final-address to use in the mapping. The GHES driver can only be enabled for architectures that select HAVE_ACPI_APEI: Add fixmap entries to both x86 and arm64. clear_fixmap() does the TLB invalidation in __set_fixmap() for arm64 and __set_pte_vaddr() for x86. In each case its the same as the respective arch_apei_flush_tlb_one(). Reported-by: Fengguang Wu <fengguang.wu@intel.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Borislav Petkov <bp@suse.de> Tested-by: Tyler Baicar <tbaicar@codeaurora.org> Tested-by: Toshi Kani <toshi.kani@hpe.com> [ For the arm64 bits: ] Acked-by: Will Deacon <will.deacon@arm.com> [ For the x86 bits: ] Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: All applicable <stable@vger.kernel.org> |
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.. | ||
apei-base.c | ||
apei-internal.h | ||
bert.c | ||
einj.c | ||
erst-dbg.c | ||
erst.c | ||
ghes.c | ||
hest.c | ||
Kconfig | ||
Makefile |