Re: [PATCH 4/5 v4] KVM: PPC: Alow kvmppc_get_last_inst() to fail

2014-07-03 Thread Alexander Graf
On 28.06.14 00:49, Mihai Caraman wrote: 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 t

[PATCH 4/5 v4] KVM: PPC: Alow kvmppc_get_last_inst() to fail

2014-06-27 Thread Mihai Caraman
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 allow