[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [RFC XEN PATCH 2/6] vpci: accept BAR writes if dom0 is PVH
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Huang Rui <ray.huang@xxxxxxx>
- Date: Tue, 21 Mar 2023 21:03:31 +0800
- Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none
- Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=ZNsBw1f0c9VM2c4M+5DsjAFNfnwqeTLoDS+Q9oCWx/U=; b=TSaZwo8Bzuz98gNQUnearfNztrF42Gb6y1xg7b+kSyPIwK+y53CRG+gEeFdCS1/mjugjHVNC4B8qT+5rQcdV3Xvy+jIrwLcdULTGxNBUTqwOp6eY/XkOwr95lPra2jODmR0r0DSHVLn9iqq4RIgNzQF9KoZ8ziuesnOXG2Bu5KlWAnvsF6y1dSd3z9SwCKi1hZv99EKLeplFGgOKhQvKiumQO+mBE0OlZIGLndUP3B+ayAyJ1h+pys3BEa4OB+zN3Kc5lnetAEBeGyD3Y53h3pN14QfYGfth2dgGhx0vlyXlVbGES6SwOZtX12SaMFwxhx9G+2rS+MW0ClJdH0g/wA==
- Arc-seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=QZFNFoMG4EkrVY94BOq09YUIbFxNy6lsKchTHeFAXXrsf7Ydz1REeoeWQt8bYcb7+B9pSekqL+GQbOZjrj9qa6Ob9pdd1OFG5rxZ5jQbxmeWYXAChCHrbPdph8qij3c1QbOB4+IMX5wU3GCuc6GPk2ymAMCRykfETUez5fj59uqe+kBJWZ6k85yh/K8ojY6aDiVODIZ5E8RLqapZmhgAYUZNs8fLNKZdns9Y+K7tdvpYSn8fN+fSuOlTnvLug/rsjahxPyiGvHb7CJtHskV+yLQtm755rDDcBWpRO8ucjFO1cdqbBnJw7SOpmozYbWqCc3xe50BQkeAnI6UNdhgCKg==
- Authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com;
- Cc: "Deucher, Alexander" <Alexander.Deucher@xxxxxxx>, "Koenig, Christian" <Christian.Koenig@xxxxxxx>, "Hildebrand, Stewart" <Stewart.Hildebrand@xxxxxxx>, Xenia Ragiadakou <burzalodowa@xxxxxxxxx>, "Huang, Honglei1" <Honglei1.Huang@xxxxxxx>, "Zhang, Julia" <Julia.Zhang@xxxxxxx>, "Chen, Jiqian" <Jiqian.Chen@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 21 Mar 2023 13:04:16 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Tue, Mar 21, 2023 at 08:27:21PM +0800, Jan Beulich wrote:
> On 21.03.2023 12:49, Huang Rui wrote:
> > Thanks, but we found if dom0 is PV domain, the passthrough device will
> > access this function to write the real bar.
>
> Can you please be quite a bit more detailed about this? The specific code
> paths taken (in upstream software) to result in such would of of interest.
>
yes, please wait for a moment. let me capture a trace dump in my side.
Thanks,
Ray
|
