On 23/03/18 08:27, Tian, Kevin wrote:
>>> The host kernel needs to have *some* MSI region in place before the
>>> guest can start configuring interrupts, otherwise it won't know what
>>> address to give to the underlying hardware. However, as soon as the host
>>> kernel has picked a region, host us
On 23/03/18 14:48, Robin Murphy wrote:
[..]
>> + * Virtio driver for the paravirtualized IOMMU
>> + *
>> + * Copyright (C) 2018 ARM Limited
>> + * Author: Jean-Philippe Brucker
>> + *
>> + * SPDX-License-Identifier: GPL-2.0
>
> This wants to be a // comment at the very top of the file (thankfully
On 14/02/18 14:53, Jean-Philippe Brucker wrote:
The virtio IOMMU is a para-virtualized device, allowing to send IOMMU
requests such as map/unmap over virtio-mmio transport without emulating
page tables. This implementation handles ATTACH, DETACH, MAP and UNMAP
requests.
The bulk of the code tran
> From: Tian, Kevin
> Sent: Thursday, March 22, 2018 6:06 PM
>
> > From: Robin Murphy [mailto:robin.mur...@arm.com]
> > Sent: Wednesday, March 21, 2018 10:24 PM
> >
> > On 21/03/18 13:14, Jean-Philippe Brucker wrote:
> > > On 21/03/18 06:43, Tian, Kevin wrote:
> > > [...]
> > >>> +
> > >>> +#inclu
> From: Robin Murphy [mailto:robin.mur...@arm.com]
> Sent: Wednesday, March 21, 2018 10:24 PM
>
> On 21/03/18 13:14, Jean-Philippe Brucker wrote:
> > On 21/03/18 06:43, Tian, Kevin wrote:
> > [...]
> >>> +
> >>> +#include
> >>> +
> >>> +#define MSI_IOVA_BASE0x800
> >>> +#d
On 21/03/18 13:14, Jean-Philippe Brucker wrote:
On 21/03/18 06:43, Tian, Kevin wrote:
[...]
+
+#include
+
+#define MSI_IOVA_BASE 0x800
+#define MSI_IOVA_LENGTH0x10
this is ARM specific, and according to virtio-iommu spec isn't it
better probed
On 21/03/18 06:43, Tian, Kevin wrote:
[...]
>> +
>> +#include
>> +
>> +#define MSI_IOVA_BASE 0x800
>> +#define MSI_IOVA_LENGTH 0x10
>
> this is ARM specific, and according to virtio-iommu spec isn't it
> better probed on the endpoint instead of ha
> From: Jean-Philippe Brucker [mailto:jean-philippe.bruc...@arm.com]
> Sent: Wednesday, February 14, 2018 10:54 PM
>
> The virtio IOMMU is a para-virtualized device, allowing to send IOMMU
> requests such as map/unmap over virtio-mmio transport without
> emulating
> page tables. This implementatio
On Thu, Feb 22, 2018 at 11:04:30AM +, Jean-Philippe Brucker wrote:
> On 21/02/18 20:12, kbuild test robot wrote:
> [...]
> > config: arm64-allmodconfig (attached as .config)
> [...]
> >aarch64-linux-gnu-ld: arch/arm64/kernel/head.o: relocation
> > R_AARCH64_ABS32 against `_kernel_offset_le
On 21/02/18 20:12, kbuild test robot wrote:
[...]
> config: arm64-allmodconfig (attached as .config)
[...]
>aarch64-linux-gnu-ld: arch/arm64/kernel/head.o: relocation R_AARCH64_ABS32
> against `_kernel_offset_le_lo32' can not be used when making a shared object
>arch/arm64/kernel/head.o: I
Hi Jean-Philippe,
I love your patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v4.16-rc2 next-20180221]
[cannot apply to iommu/next]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
http
Hi Jean-Philippe,
I love your patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v4.16-rc2 next-20180221]
[cannot apply to iommu/next]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
http
On 19/02/18 12:23, Tomasz Nowicki wrote:
[...]
>> +static int viommu_receive_resp(struct viommu_dev *viommu, int nr_sent,
>> + struct list_head *sent)
>> +{
>> +
>> +unsigned int len;
>> +int nr_received = 0;
>> +struct viommu_request *req, *pending;
>> +
>> +
Hi Jean,
On 14.02.2018 15:53, Jean-Philippe Brucker wrote:
The virtio IOMMU is a para-virtualized device, allowing to send IOMMU
requests such as map/unmap over virtio-mmio transport without emulating
page tables. This implementation handles ATTACH, DETACH, MAP and UNMAP
requests.
The bulk of t
The virtio IOMMU is a para-virtualized device, allowing to send IOMMU
requests such as map/unmap over virtio-mmio transport without emulating
page tables. This implementation handles ATTACH, DETACH, MAP and UNMAP
requests.
The bulk of the code transforms calls coming from the IOMMU API into
corres
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