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powerpc/booke64: Use GSRR registers in Guest Doorbell interrupts
authorMihai Caraman <mihai.caraman@freescale.com>
Mon, 6 Aug 2012 03:27:04 +0000 (03:27 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 5 Sep 2012 05:35:43 +0000 (15:35 +1000)
Guest Doorbell interrupts use guest save and restore registers. Add a new
Guest Doorbell exception type to accommodate GSRR0/1 SPRs usage in exception
prolog and fix the exception handler.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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