On 15/11/2016 15:36, Namhyung Kim wrote: > Hi, > > On Tue, Nov 15, 2016 at 10:57:29AM +0100, Paolo Bonzini wrote: >> >> >> On 15/11/2016 06:06, Michael S. Tsirkin wrote: >>> On Tue, Nov 15, 2016 at 01:50:21PM +0900, Namhyung Kim wrote: >>>> Hi Michael, >>>> >>>> On Thu, Nov 10, 2016 at 06:39:55PM +0200, Michael S. Tsirkin wrote: >>>>> On Sat, Aug 20, 2016 at 05:07:42PM +0900, Namhyung Kim wrote: >>>>>> The virtio pstore driver provides interface to the pstore subsystem so >>>>>> that the guest kernel's log/dump message can be saved on the host >>>>>> machine. Users can access the log file directly on the host, or on the >>>>>> guest at the next boot using pstore filesystem. It currently deals with >>>>>> kernel log (printk) buffer only, but we can extend it to have other >>>>>> information (like ftrace dump) later. >>>>>> >>>>>> It supports legacy PCI device using single order-2 page buffer. >>>>> >>>>> Do you mean a legacy virtio device? I don't see why >>>>> you would want to support pre-1.0 mode. >>>>> If you drop that, you can drop all cpu_to_virtio things >>>>> and just use __le accessors. >>>> >>>> I was thinking about the kvmtools which lacks 1.0 support AFAIK. >>> >>> Unless kvmtools wants to be left behind it has to go 1.0. >> >> And it also has to go ACPI. Is there any reason, apart from kvmtool, to >> make a completely new virtio device, with no support in existing guests, >> rather than implement ACPI ERST? > > Well, I know nothing about ACPI. It looks like a huge spec and I > don't want to dig into it just for this. ERST (error record serialization table) is a small subset of the ACPI spec. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
