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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: Adrian Moreno <amorenoz@redhat.com>, dev@dpdk.org
Cc: tiwei.bie@intel.com, zhihong.wang@intel.com, stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v6 1/3] vhost: translate incoming log address to gpa
Date: Fri, 11 Oct 2019 17:13:31 +0200
Message-ID: <a4a4b8a4-39d7-85b3-359f-81de1eec7146@redhat.com> (raw)
In-Reply-To: <20191009115432.14863-2-amorenoz@redhat.com>



On 10/9/19 1:54 PM, Adrian Moreno wrote:
> When IOMMU is enabled the incoming log address is in IOVA space. In that
> case, look in IOTLB table and translate the resulting HVA to GPA.
> 
> If IOMMU is not enabled, the incoming log address is already a GPA so no
> transformation is needed.
> 
> Fixes: 69c90e98f483 ("vhost: enable IOMMU support")
> Cc: maxime.coquelin@redhat.com
> Cc: stable@dpdk.org
> Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
> 
> ---
> v6 changes: use PRIx64 macro to fix UB1604-32 build
> v5 changes: Rebase on top of dpdk-next-virtio
> ---
>  lib/librte_vhost/vhost.c      |  1 +
>  lib/librte_vhost/vhost.h      | 20 +++++++++++++++++
>  lib/librte_vhost/vhost_user.c | 42 ++++++++++++++++++++++++++++++++++-
>  3 files changed, 62 insertions(+), 1 deletion(-)
> 


Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Thanks,
Maxime


  reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-09 11:54 [dpdk-dev] [PATCH v6 0/3] vhost: add support for IOVA_VA mode Adrian Moreno
2019-10-09 11:54 ` [dpdk-dev] [PATCH v6 1/3] vhost: translate incoming log address to gpa Adrian Moreno
2019-10-11 15:13   ` Maxime Coquelin [this message]
2019-10-09 11:54 ` [dpdk-dev] [PATCH v6 2/3] vhost: convert buffer addresses to GPA for logging Adrian Moreno
2019-10-11 15:16   ` Maxime Coquelin
2019-10-09 11:54 ` [dpdk-dev] [PATCH v6 3/3] vhost: prevent zero copy mode if iommu is on Adrian Moreno
2019-10-11 15:16   ` Maxime Coquelin
2019-10-16 11:11 ` [dpdk-dev] [PATCH v6 0/3] vhost: add support for IOVA_VA mode Maxime Coquelin

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