linux-kernel - Re: [Xen-devel] [PATCH] xen/x86/pvh: Use HVM's flush_tlb

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Message-ID: <566ECB19.70106@citrix.com>
Date:	Mon, 14 Dec 2015 13:58:49 +0000
From:	David Vrabel <david.vrabel@...rix.com>
To:	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	<david.vrabel@...rix.com>, <konrad.wilk@...cle.com>
CC:	<xen-devel@...ts.xenproject.org>, <linux-kernel@...r.kernel.org>,
	<jbeulich@...e.com>
Subject: Re: [Xen-devel] [PATCH] xen/x86/pvh: Use HVM's flush_tlb_others op

On 13/12/15 00:25, Boris Ostrovsky wrote:
> Using MMUEXT_TLB_FLUSH_MULTI doesn't buy us much since the hypervisor
> will likely perform same IPIs as would have the guest.
> 
> More importantly, using MMUEXT_INVLPG_MULTI may not to invalidate the
> guest's address on remote CPU (when, for example, VCPU from another guest
> is running there).
> 
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>
> Suggested-by: Jan Beulich <jbeulich@...e.com>
> Cc: stable@...r.kernel.org # 3.14+

Applied to for-linus-4.4, thanks.  But given that PVH is experimental
I've dropped the stable Cc.

David
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