Re: [Xen-devel] [PATCH] SCHEDOP_block_masked

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 10 Mar 2006, at 10:58, John Levon wrote:

> Introduce SCHEDOP_block_masked, which blocks a VCPU without enabling
> interrupts.
>
> We need this as there are circumstances where we cannot take 
> interrupts,
> and are polling in a tight loop. In particular in Solaris's kernel
> debugger console input. We don't want to burn CPU in a domU, but we're
> not in a situation where we can safely use SCHEDOP_block.
Modified do_block() still checks event_pending, even if you do not 
clear the event_mask. Presumably you don't really want to do that?
 -- Keir


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