[RFC/RFT PATCH 2/6] x86/mm/fixmap: Add GHES fixmap entries
From: james.morse@arm.com (James Morse)
Date: 2017-10-31 15:40:41
Also in:
linux-acpi, lkml
Subsystem:
the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
GHES is switching to use fixmap for its dynamic mapping of CPER records, to avoid using ioremap_page_range() in IRQ/NMI context. Signed-off-by: James Morse <james.morse@arm.com> --- arch/x86/include/asm/fixmap.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index dcd9fb55e679..be3cc32db7f0 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h@@ -104,6 +104,10 @@ enum fixed_addresses { FIX_GDT_REMAP_BEGIN, FIX_GDT_REMAP_END = FIX_GDT_REMAP_BEGIN + NR_CPUS - 1, + /* Used for GHES mapping from assorted contexts */ + FIX_APEI_GHES_IRQ, + FIX_APEI_GHES_NMI, + __end_of_permanent_fixed_addresses, /*
--
2.15.0.rc2