From: Peter Xu <peterx@redhat.com>
To: Eric Auger <eric.auger@redhat.com>
Cc: peter.maydell@linaro.org, jean-philippe@linaro.org,
jasowang@redhat.com, qemu-devel@nongnu.org,
shameerali.kolothum.thodi@huawei.com, vivek.gautam@arm.com,
qemu-arm@nongnu.org, pbonzini@redhat.com,
eric.auger.pro@gmail.com
Subject: Re: [PATCH v2 3/7] virtio-iommu: Handle non power of 2 range invalidations
Date: Thu, 25 Feb 2021 11:01:13 -0500 [thread overview]
Message-ID: <20210225160113.GC250483@xz-x1> (raw)
In-Reply-To: <20210225091435.644762-4-eric.auger@redhat.com>
On Thu, Feb 25, 2021 at 10:14:31AM +0100, Eric Auger wrote:
> Unmap notifiers work with an address mask assuming an
> invalidation range of a power of 2. Nothing mandates this
> in the VIRTIO-IOMMU spec.
>
> So in case the range is not a power of 2, split it into
> several invalidations.
>
> Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
--
Peter Xu
next prev parent reply other threads:[~2021-02-25 16:03 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-25 9:14 [PATCH v2 0/7] Some vIOMMU fixes Eric Auger
2021-02-25 9:14 ` [PATCH v2 1/7] intel_iommu: Fix mask may be uninitialized in vtd_context_device_invalidate Eric Auger
2021-02-25 10:08 ` Philippe Mathieu-Daudé
2021-02-25 16:33 ` Auger Eric
2021-02-25 15:41 ` Peter Xu
2021-02-25 9:14 ` [PATCH v2 2/7] dma: Introduce dma_aligned_pow2_mask() Eric Auger
2021-02-25 15:56 ` Peter Xu
2021-03-08 16:34 ` Peter Maydell
2021-02-25 9:14 ` [PATCH v2 3/7] virtio-iommu: Handle non power of 2 range invalidations Eric Auger
2021-02-25 16:01 ` Peter Xu [this message]
2021-02-25 9:14 ` [PATCH v2 4/7] hw/arm/smmu-common: Fix smmu_iotlb_inv_iova when asid is not set Eric Auger
2021-03-08 16:37 ` Peter Maydell
2021-03-09 8:37 ` Auger Eric
2021-02-25 9:14 ` [PATCH v2 5/7] hw/arm/smmuv3: Enforce invalidation on a power of two range Eric Auger
2021-03-08 16:44 ` Peter Maydell
2021-02-25 9:14 ` [PATCH v2 6/7] hw/arm/smmuv3: Fix SMMU_CMD_CFGI_STE_RANGE handling Eric Auger
2021-03-08 16:41 ` Peter Maydell
2021-02-25 9:14 ` [PATCH v2 7/7] hw/arm/smmuv3: Uniformize sid traces Eric Auger
2021-02-25 10:11 ` Philippe Mathieu-Daudé
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