From: Mihai Caraman Date: Wed, 23 Jul 2014 16:06:21 +0000 (+0300) Subject: KVM: PPC: Allow kvmppc_get_last_inst() to fail X-Git-Tag: omap-for-v3.17/fixes-against-rc2~130^2~10^2~25 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=51f047261e717b74b226f837a16455994b61ae30;p=pandora-kernel.git KVM: PPC: Allow kvmppc_get_last_inst() to fail On book3e, guest last instruction is read on the exit path using load external pid (lwepx) dedicated instruction. This load operation may fail due to TLB eviction and execute-but-not-read entries. This patch lay down the path for an alternative solution to read the guest last instruction, by allowing kvmppc_get_lat_inst() function to fail. Architecture specific implmentations of kvmppc_load_last_inst() may read last guest instruction and instruct the emulation layer to re-execute the guest in case of failure. Make kvmppc_get_last_inst() definition common between architectures. Signed-off-by: Mihai Caraman Signed-off-by: Alexander Graf --- Reading git-diff-tree failed