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From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Jiqian Chen <Jiqian.Chen@amd.com>
Cc: xen-devel@lists.xenproject.org, Jan Beulich <jbeulich@suse.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>, Wei Liu <wl@xen.org>,
	George Dunlap <gwd@xenproject.org>, Julien Grall <julien@xen.org>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Anthony PERARD <anthony@xenproject.org>,
	Juergen Gross <jgross@suse.com>,
	"Daniel P . Smith" <dpsmith@apertussolutions.com>,
	Stewart Hildebrand <Stewart.Hildebrand@amd.com>,
	Huang Rui <ray.huang@amd.com>
Subject: Re: [XEN PATCH v14 1/5] xen/pci: Add hypercall to support reset of pcidev
Date: Mon, 9 Sep 2024 11:34:30 +0200	[thread overview]
Message-ID: <Zt7BJrgZ_KY3NVGf@macbook.local> (raw)
In-Reply-To: <20240903070424.982218-2-Jiqian.Chen@amd.com>

On Tue, Sep 03, 2024 at 03:04:20PM +0800, Jiqian Chen wrote:
> When a device has been reset on dom0 side, the Xen hypervisor
> doesn't get notification, so the cached state in vpci is all
> out of date compare with the real device state.
> 
> To solve that problem, add a new hypercall to support the reset
> of pcidev and clear the vpci state of device. So that once the
> state of device is reset on dom0 side, dom0 can call this
> hypercall to notify hypervisor.
> 
> The behavior of different reset types may be different in the
> future, so divide them now so that they can be easily modified
> in the future without affecting the hypercall interface.
> 
> Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com>
> Signed-off-by: Huang Rui <ray.huang@amd.com>
> Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com>

Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

Thanks, Roger.


  reply	other threads:[~2024-09-09  9:34 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-03  7:04 [XEN PATCH v14 0/5] Support device passthrough when dom0 is PVH on Xen Jiqian Chen
2024-09-03  7:04 ` [XEN PATCH v14 1/5] xen/pci: Add hypercall to support reset of pcidev Jiqian Chen
2024-09-09  9:34   ` Roger Pau Monné [this message]
2024-09-03  7:04 ` [XEN PATCH v14 2/5] x86/pvh: Allow (un)map_pirq when dom0 is PVH Jiqian Chen
2024-09-03  7:42   ` Jan Beulich
2024-09-03  7:58     ` Chen, Jiqian
2024-09-03  9:25       ` Jan Beulich
2024-09-03 10:53         ` Chen, Jiqian
2024-09-03 14:14           ` Jan Beulich
2024-09-04  1:43             ` Stefano Stabellini
2024-09-04  6:04               ` Jan Beulich
2024-09-05  6:45                 ` Chen, Jiqian
2024-09-05  9:44                   ` Jan Beulich
2024-09-05 22:51                     ` Stefano Stabellini
2024-09-06  6:26                       ` Jan Beulich
2024-09-06 23:34                         ` Stefano Stabellini
2024-09-09  8:56                           ` Jan Beulich
2024-09-09 10:04                             ` Roger Pau Monné
2024-09-09 10:22                               ` Jan Beulich
2024-09-09 10:35                               ` Chen, Jiqian
2024-09-03  7:04 ` [XEN PATCH v14 3/5] x86/domctl: Add hypercall to set the access of x86 gsi Jiqian Chen
2024-09-09  9:15   ` Roger Pau Monné
2024-09-09 10:30     ` Chen, Jiqian
2024-09-03  7:04 ` [RFC XEN PATCH v14 4/5] tools: Add new function to get gsi from dev Jiqian Chen
2024-09-03 14:12   ` Anthony PERARD
2024-09-03 15:51   ` Anthony PERARD
2024-09-03 15:57     ` Jan Beulich
2024-09-03  7:04 ` [RFC XEN PATCH v14 5/5] tools: Add new function to do PIRQ (un)map on PVH dom0 Jiqian Chen
2024-09-03 17:16   ` Anthony PERARD
2024-09-04  9:31     ` Chen, Jiqian

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