Re: [Xen-devel] [PATCH] SUPPORT.md: Multiple IOREQ servers are experimental

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: George Dunlap [mailto:george.dunlap@xxxxxxxxxx]
> Sent: 14 March 2018 11:06
> To: xen-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: George Dunlap <George.Dunlap@xxxxxxxxxx>; Ian Jackson
> <Ian.Jackson@xxxxxxxxxx>; Wei Liu <wei.liu2@xxxxxxxxxx>; Andrew Cooper
> <Andrew.Cooper3@xxxxxxxxxx>; Jan Beulich <jbeulich@xxxxxxxx>; Tim
> (Xen.org) <tim@xxxxxxx>; Konrad Wilk <konrad.wilk@xxxxxxxxxx>; Stefano
> Stabellini <sstabellini@xxxxxxxxxx>; Julien Grall <julien.grall@xxxxxxx>; Paul
> Durrant <Paul.Durrant@xxxxxxxxxx>
> Subject: [PATCH] SUPPORT.md: Multiple IOREQ servers are experimental
> 
> The code has been there in the hypervisor for several releases, but
> there is no toolstack support.
> 
> While we're here delete some trailing whitespace.
> 
> Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxx>

Sounds ok to me...

Reviewed-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

> ---
> This is a backport candidate to 4.10.
> 
> Wasn't clear exactly what section to put it in, but I figured it had
> to do with virtual hardware and it was in the hypervisor, so this was
> the best place.
> 
> CC: Ian Jackson <ian.jackson@xxxxxxxxxx>
> CC: Wei Liu <wei.liu2@xxxxxxxxxx>
> CC: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> CC: Jan Beulich <jbeulich@xxxxxxxx>
> CC: Tim Deegan <tim@xxxxxxx>
> CC: Konrad Wilk <konrad.wilk@xxxxxxxxxx>
> CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> CC: Julien Grall <julien.grall@xxxxxxx>
> CC: Paul Durrant <paul.durrant@xxxxxxxxxx>
> ---
>  SUPPORT.md | 12 +++++++++++-
>  1 file changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/SUPPORT.md b/SUPPORT.md
> index 9ac1a40036..ddcdfab5ad 100644
> --- a/SUPPORT.md
> +++ b/SUPPORT.md
> @@ -599,6 +599,16 @@ However, this feature can still confer significant
> security benefit
>  when used to remove drivers and backends from domain 0
>  (i.e., Driver Domains).
> 
> +### x86/Multiple IOREQ servers
> +
> +     Status: Experimental
> +
> +An IOREQ server provides emulated devices to HVM and PVH guests.
> +QEMU is normally the only IOREQ server,
> +but Xen has support for multiple IOREQ servers.
> +This allows for custom or proprietary device emulators
> +to be used in addition to QEMU.
> +
>  ### ARM/Non-PCI device passthrough
> 
>      Status: Supported, not security supported
> @@ -639,7 +649,7 @@ Note that other devices are available but not security
> supported.
> 
>      Status, piix3 ide: Supported
>      Status, ahci: Supported
> -
> +
>  See the section **Blkback** for image formats supported by QEMU.
> 
>  ### x86/Emulated graphics (QEMU):
> --
> 2.16.2


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