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Re: [Xen-devel] [RFC PATCH 83/84] x86/pmap: rewrite logic for locking.

On Thu, Sep 26, 2019 at 10:46:46AM +0100, hongyax@xxxxxxxxxx wrote:
> From: Hongyan Xia <hongyax@xxxxxxxxxx>
> Due to the limited PMAP entries, another pCPU is allowed to use PMAP
> only when the current pCPU has unmapped all mappings.

Under what condition would two pCPUs try to use PMAP at the same time?


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