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xen: arm: Annotate source of ICC SGI register trapping
authorIan Campbell <ian.campbell@citrix.com>
Mon, 30 Mar 2015 16:44:52 +0000 (17:44 +0100)
committerIan Campbell <ian.campbell@citrix.com>
Fri, 8 May 2015 10:50:50 +0000 (11:50 +0100)
commit1c5bc25d9b028fbac0b864d4982e55053d157cf6
treeae17e2d07238689dc2ccd86389e072ec7ea0290atree | snapshot
parentccc3f5f7f416ee76940d11596532cc46f7ee1d3bcommit | diff
xen: arm: Annotate source of ICC SGI register trapping

I was unable to find an ARMv8 ARM reference to this, so refer to the
GIC Architecture Specification instead.

ARMv8 ARM does cover other ways of trapping these accesses via
ICH_HCR_EL2 but we don't use those and they trap additional registers
as well.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Julien Grall <julien.grall@citrix.com>
xen/arch/arm/traps.c diff | blob | history
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