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Re: [Qemu-ppc] [PATCH v8 4/4] sPAPR: Implement sPAPRPHBClass::eeh_handle

From: Alexander Graf
Subject: Re: [Qemu-ppc] [PATCH v8 4/4] sPAPR: Implement sPAPRPHBClass::eeh_handler
Date: Thu, 05 Jun 2014 15:00:17 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.5.0

On 05.06.14 08:53, Gavin Shan wrote:
The patch implements sPAPRPHBClass::eeh_handler so that the
EEH RTAS requests can be routed to VFIO for further handling.

Signed-off-by: Gavin Shan <address@hidden>

Just to make sure I grasp this correctly.

We have PHBs that are VFIO PHBs and PHBs that are emulation PHBs. Emulation PHBs can only have emulated devices attached. VFIO PHBs can only have a single IOMMU group's devices attached each. A container can not span 2 different VFIO PHBs.

Is this correct? If not the code below needs to take care of any abstraction we have in between and maybe limit scope a bit to make sure the guest doesn't kill devices on other PHBs :).


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