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Re: [Xen-devel] [PATCH v6.5 05/26] x86/entry: Remove support for partial cpu_user_regs frames

>>> On 04.01.18 at 01:15, <andrew.cooper3@xxxxxxxxxx> wrote:
> Save all GPRs on entry to Xen.
> The entry_int82() path is via a DPL1 gate, only usable by 32bit PV guests, so
> can get away with only saving the 32bit registers.  All other entrypoints can
> be reached from 32 or 64bit contexts.
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>

While I don't fully agree with outright removing the code, for it to
be able to go in
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>


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