Re: [Xen-devel] [PATCH 0/5] x86: properly propagate errors to hypercall callee

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

>>> On 09.03.11 at 11:53, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote:
> 1: don't BUG() post-boot in alloc_xen_pagetable()
> 2: run-time callers of map_pages_to_xen() must check for errors

I actually think that the first two should be considered for 4.0 and
4.1, as those are preventing a guest induced host crash. The other
three are more of enhancement type (propagating a meaningful
error to the calling guest).

Jan

> 3: make get_page_from_l1e() return a proper error code
> 4: make mod_l1_entry() return a proper error code
> 5: make mod_l2_entry() return a proper error code
> 
> All but the last are clear candidates for backporting to 4.1 and 4.0,
> albeit for the former perhaps only after 4.1.0.
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>



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