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From: Oleksandr <olekstysh@gmail.com>
To: Julien Grall <julien.grall@arm.com>, xen-devel@lists.xenproject.org
Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>,
	sstabellini@kernel.org
Subject: Re: [Xen-devel] [PATCH V2 4/6] iommu/arm: Add lightweight iommu_fwspec support
Date: Tue, 13 Aug 2019 19:28:14 +0300	[thread overview]
Message-ID: <cbe5af18-b9c3-b523-003a-8bc1b745b114@gmail.com> (raw)
In-Reply-To: <dd8d6ac0-b5d3-bc1c-1a94-73660a60cabd@arm.com>


On 13.08.19 16:40, Julien Grall wrote:
> Hi Oleksandr,

Hi Julien.


>
> One more comment :).
>
> On 8/2/19 5:39 PM, Oleksandr Tyshchenko wrote:
>> +int iommu_fwspec_init(struct device *dev, struct device *iommu_dev)
>> +{
>> +    struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
>> +
>> +    if ( fwspec )
>
> I would actually check the iommu_dev passed in parameter is the same 
> as stored. We expect all device to be protected by only one IOMMU. So 
> better to be safe than allow overriding ;).

Actually, it makes sense, will add appropriate check.


-- 
Regards,

Oleksandr Tyshchenko


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  reply	other threads:[~2019-08-13 16:28 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-02 16:39 [Xen-devel] [PATCH V2 0/6] iommu/arm: Add Renesas IPMMU-VMSA support + Linux's iommu_fwspec Oleksandr Tyshchenko
2019-08-02 16:39 ` [Xen-devel] [PATCH V2 1/6] iommu/arm: Add iommu_helpers.c file to keep common for IOMMUs stuff Oleksandr Tyshchenko
2019-08-09 17:35   ` Julien Grall
2019-08-09 18:10     ` Oleksandr
2019-08-02 16:39 ` [Xen-devel] [PATCH V2 2/6] iommu/arm: Add ability to handle deferred probing request Oleksandr Tyshchenko
2019-08-12 11:11   ` Julien Grall
2019-08-12 12:01     ` Oleksandr
2019-08-12 19:46       ` Julien Grall
2019-08-13 12:35         ` Oleksandr
2019-08-14 17:34           ` Julien Grall
2019-08-14 19:25             ` Stefano Stabellini
2019-08-15  9:29               ` Julien Grall
2019-08-15 12:54                 ` Julien Grall
2019-08-15 13:14                   ` Oleksandr
2019-08-15 16:39                     ` Oleksandr
2019-08-02 16:39 ` [Xen-devel] [PATCH V2 3/6] [RFC] xen/common: Introduce _xrealloc function Oleksandr Tyshchenko
2019-08-05 10:02   ` Jan Beulich
2019-08-06 18:50     ` Oleksandr
2019-08-07  6:22       ` Jan Beulich
2019-08-07 17:31         ` Oleksandr
2019-08-06 19:51     ` Volodymyr Babchuk
2019-08-07  6:26       ` Jan Beulich
2019-08-07 18:36         ` Oleksandr
2019-08-08  6:08           ` Jan Beulich
2019-08-08  7:05           ` Jan Beulich
2019-08-08 11:05             ` Oleksandr
2019-08-02 16:39 ` [Xen-devel] [PATCH V2 4/6] iommu/arm: Add lightweight iommu_fwspec support Oleksandr Tyshchenko
2019-08-13 12:39   ` Julien Grall
2019-08-13 15:17     ` Oleksandr
2019-08-13 15:28       ` Julien Grall
2019-08-13 16:18         ` Oleksandr
2019-08-13 13:40   ` Julien Grall
2019-08-13 16:28     ` Oleksandr [this message]
2019-08-02 16:39 ` [Xen-devel] [PATCH V2 5/6] iommu/arm: Introduce iommu_add_dt_device API Oleksandr Tyshchenko
2019-08-13 13:49   ` Julien Grall
2019-08-13 16:05     ` Oleksandr
2019-08-13 17:13       ` Julien Grall
2019-08-02 16:39 ` [Xen-devel] [PATCH V2 6/6] iommu/arm: Add Renesas IPMMU-VMSA support Oleksandr Tyshchenko
2019-08-07  2:41   ` Yoshihiro Shimoda
2019-08-07 16:01     ` Oleksandr
2019-08-07 19:15       ` Julien Grall
2019-08-07 20:28         ` Oleksandr Tyshchenko
2019-08-08  9:05           ` Julien Grall
2019-08-08 10:14             ` Oleksandr
2019-08-08 12:44               ` Julien Grall
2019-08-08 15:04                 ` Oleksandr
2019-08-08 17:16                   ` Julien Grall
2019-08-08 19:29                     ` Oleksandr
2019-08-08 20:32                       ` Julien Grall
2019-08-08 23:32                         ` Oleksandr Tyshchenko
2019-08-09  9:56                           ` Julien Grall
2019-08-09 18:38                             ` Oleksandr
2019-08-08 12:28         ` Oleksandr
2019-08-08 14:23         ` Lars Kurth
2019-08-08  4:05       ` Yoshihiro Shimoda
2019-08-14 17:38   ` Julien Grall
2019-08-14 18:45     ` Oleksandr
2019-08-05  7:58 ` [Xen-devel] [PATCH V2 0/6] iommu/arm: Add Renesas IPMMU-VMSA support + Linux's iommu_fwspec Oleksandr
2019-08-05  8:29   ` Julien Grall

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