From: Scott Wood <scottwood@freescale.com>
Date: Mon, 10 Mar 2014 22:29:38 +0000 (-0500)
Subject: powerpc/booke64: Use SPRG_TLB_EXFRAME on bolted handlers
X-Git-Tag: v3.15-rc1~124^2^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3dc620743f44cd509a1ab7b01c33d26fb501c8c;p=pandora-kernel.git

powerpc/booke64: Use SPRG_TLB_EXFRAME on bolted handlers

While bolted handlers (including e6500) do not need to deal with a TLB
miss recursively causing another TLB miss, nested TLB misses can still
happen with crit/mc/debug exceptions -- so we still need to honor
SPRG_TLB_EXFRAME.

We don't need to spend time modifying it in the TLB miss fastpath,
though -- the special level exception will handle that.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Mihai Caraman <mihai.caraman@freescale.com>
Cc: kvm-ppc@vger.kernel.org
---

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