Re: hypercall via "TRAP_INSTR" vs. hypercall page

To: Christoph Egger <Christoph_Egger%gmx.de@localhost>
Subject: Re: hypercall via "TRAP_INSTR" vs. hypercall page
From: Jean-Yves Migeon <jeanyves.migeon%free.fr@localhost>
Date: 2011年5月03日 08:37:58 +0100

On 2011年5月02日 11:30:41 +0200, Christoph Egger wrote:

Hi,
If we still use the TRAP_INSTR macro to make a hypercall
we have to move to the hypercall page.
Reason: TRAP_INSTR has been removed in xen-unstable which
means Xen versions newer than 4.1 no longer support
this method.

Are you asking to turn off the COMPAT Xen 3.0.1 code for domUs bydefault?

In any case, I'd like to keep the option available though :)
--
Jean-Yves Migeon
jeanyves.migeon%free.fr@localhost

References:
- hypercall via "TRAP_INSTR" vs. hypercall page
  - From: Christoph Egger

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