Re: [Xen-devel] [PATCH v2 0/4] x86/HVM: misc descriptor table access exiting related fixes

[Julien Grall <julien.grall@xxxxxxx>]

Hi Jan,

On 04/18/2017 11:25 AM, Jan Beulich wrote:
> Patch 2 brings recently added code in line with what we did switch
> other code to during this dev cycle. Patch 3 is at least a latent bug fix.
> Patch 4 is merely improving debuggability, so other than the first two
> I'm not sure it qualifies for 4.9.
>
> This is all fallout from re-basing my UMIP emulation patch over
> d0a699a389 ("x86/monitor: add support for descriptor access events").
>
> 1: x86emul: always fill x86_insn_modrm()'s outputs
> 2: x86/HVM: restrict emulation in hvm_descriptor_access_intercept()
> 3: VMX: don't blindly enable descriptor table exiting control
For patch #3 you said it is a latent bug and I guess it could be 
uncovered from a backport later on. So I am fine with #1-#3:
Release-acked-by: Julien Grall <julien.grall@xxxxxxx>

> 4: x86/HVM: don't uniformly report "MMIO" for various forms of failed emulation
On another thread I was mentioning that I will start enforcing bug fix 
from rc2. So:
Release-acked-by: Julien Grall <julien.grall@xxxxxxx>

Cheers,

--
Julien Grall

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