From: Andre Przywara <andre.przywara@arm.com>
Date: Tue, 3 Jun 2014 08:13:13 +0000 (+0200)
Subject: arm64: KVM: add SGI generation register emulation
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~97^2~37^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6d52f35af10cf24d59b43f3fd8c938ad23cab543;p=pandora-kernel.git

arm64: KVM: add SGI generation register emulation

While the generation of a (virtual) inter-processor interrupt (SGI)
on a GICv2 works by writing to a MMIO register, GICv3 uses the system
register ICC_SGI1R_EL1 to trigger them.
Add a trap handler function that calls the new SGI register handler
in the GICv3 code. As ICC_SRE_EL1.SRE at this point is still always 0,
this will not trap yet, but will only be used later when all the data
structures have been initialized properly.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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