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authorAlexander Graf <agraf@suse.de>2012-04-27 16:33:35 +0200
committerAlexander Graf <agraf@suse.de>2012-05-16 15:02:10 +0200
commit56e13dbae3eddb1648e6e94ae251c83cdc8304e0 (patch)
treed9e7df8e8bf1917e82711e9437673535f40c8f55 /ipc/msg.c
parent7ef4e985d54bad2773f260da38530f858a9a8491 (diff)
KVM: PPC: Fix PR KVM on POWER7 bare metal
When running on a system that is HV capable, some interrupts use HSRR SPRs instead of the normal SRR SPRs. These are also used in the Linux handlers to jump back to code after an interrupt got processed. Unfortunately, in our "jump back to the real host handler after we've done the context switch" code, we were only setting the SRR SPRs, rendering Linux to jump back to some invalid IP after it's processed the interrupt. This fixes random crashes on p7 opal mode with PR KVM for me. Signed-off-by: Alexander Graf <agraf@suse.de>
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