Re: [PATCH RFC 0/4] xen/pvhvm: fix shared_info and pirq issues with kexec

From: David Vrabel
Date: Mon Jul 28 2014 - 09:24:32 EST

On 15/07/14 14:40, Vitaly Kuznetsov wrote:
> With this patch series I'm trying to address several issues with kexec on pvhvm:
> - shared_info issue (1st patch, just sending Olaf's work with Konrad's fix)
> - create specific pvhvm shutdown handler for kexec (2nd patch)
> - GSI PIRQ issue (3rd patch, I'm pretty confident that it does the right thing)
> - MSI PIRQ issue (4th patch, and I'm not sure it doesn't break anything -> RFC)
> This patch series can be tested on single vCPU guest. We still have SMP issues with
> pvhvm guests and kexec which require additional fixes.

In addition to the fixes for multi-VCPU guests, what else remains?

What's the plan for handling granted pages?

I don't think we want to accept a partial solution unless the known
non-working configurations fail fast on kexec load.

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