Re: [Xen-devel] [PATCH] XSA-77: widen scope again

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Fri, Apr 29, 2016 at 03:35:51AM -0600, Jan Beulich wrote:
> As discussed on the hackathon, avoid us having to issue security
> advisories for issues affecting only heavily disaggregated tool stack
> setups, which no-one appears to use (or else they should step up to get
> things into shape).
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> ---
> As we want to retain supported status of stubdom qemu: Does qemu use
> any others when use in a stub domain?
> 
> --- a/docs/misc/xsm-flask.txt
> +++ b/docs/misc/xsm-flask.txt
> @@ -59,68 +59,16 @@ http://www.xenproject.org/security-polic 
>  
>  __HYPERVISOR_domctl (xen/include/public/domctl.h)
>  
> - The following subops are covered by this statement. subops not listed
> - here are considered safe for disaggregation.
> + All subops except for the following are covered by this statement.

Since the list is inversed now (subops listed here are safe for
disaggregation, correct me if I'm wrong).

> - * XEN_DOMCTL_pin_mem_cacheattr

QEMU (stubdom or not) uses this to pin cache attribute of vram. Since we
want to support QEMU stubdom, we might want this in the list.

Wei.

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