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From: | Avihai Horon |
Subject: | Re: [PATCH v4 10/15] intel-iommu: Implement IOMMU_ATTR_MAX_IOVA get_attr() attribute |
Date: | Sun, 9 Jul 2023 18:17:43 +0300 |
User-agent: | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 |
On 23/06/2023 0:48, Joao Martins wrote:
External email: Use caution opening links or attachments From: Avihai Horon <avihaih@nvidia.com> Implement get_attr() method and use the address width property to report the IOMMU_ATTR_MAX_IOVA attribute.
Nit: get_attr() method was already implemented in patch #6.Maybe just "Use address width property to report IOMMU_ATTR_MAX_IOVA attribute"?
Thanks.
Signed-off-by: Avihai Horon <avihaih@nvidia.com> Signed-off-by: Joao Martins <joao.m.martins@oracle.com> --- hw/i386/intel_iommu.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index ed2a46e008df..989993e303a6 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -3876,6 +3876,13 @@ static int vtd_iommu_get_attr(IOMMUMemoryRegion *iommu_mr, *enabled = s->dma_translation; break; } + case IOMMU_ATTR_MAX_IOVA: + { + hwaddr *max_iova = (hwaddr *)(uintptr_t) data; + + *max_iova = MAKE_64BIT_MASK(0, s->aw_bits);; + break; + } default: ret = -EINVAL; break; -- 2.17.2
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