From: David Vrabel <david.vrabel@citrix.com>
To: Boris Ostrovsky <boris.ostrovsky@oracle.com>,
<david.vrabel@citrix.com>, <konrad.wilk@oracle.com>
Cc: <xen-devel@lists.xenproject.org>, <linux-kernel@vger.kernel.org>,
<jbeulich@suse.com>
Subject: Re: [Xen-devel] [PATCH] xen/x86/pvh: Use HVM's flush_tlb_others op
Date: Mon, 14 Dec 2015 13:58:49 +0000 [thread overview]
Message-ID: <566ECB19.70106@citrix.com> (raw)
In-Reply-To: <1449966355-10611-1-git-send-email-boris.ostrovsky@oracle.com>
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@oracle.com>
> Suggested-by: Jan Beulich <jbeulich@suse.com>
> Cc: stable@vger.kernel.org # 3.14+
Applied to for-linus-4.4, thanks. But given that PVH is experimental
I've dropped the stable Cc.
David
next prev parent reply other threads:[~2015-12-14 13:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-13 0:25 [PATCH] xen/x86/pvh: Use HVM's flush_tlb_others op Boris Ostrovsky
2015-12-14 13:58 ` David Vrabel [this message]
2015-12-14 14:05 ` [Xen-devel] " Boris Ostrovsky
[not found] ` <20151214152713.GC23203@char.us.oracle.com>
2015-12-14 15:35 ` Roger Pau Monné
2015-12-14 15:58 ` Boris Ostrovsky
2015-12-15 14:36 ` Boris Ostrovsky
2015-12-15 15:03 ` Jan Beulich
2015-12-15 15:14 ` Boris Ostrovsky
2015-12-15 15:24 ` Jan Beulich
2015-12-15 15:37 ` Boris Ostrovsky
2015-12-15 16:07 ` Jan Beulich
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