From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.0 required=3.0 tests=INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42606C433FF for ; Wed, 14 Aug 2019 18:05:13 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 220312084F for ; Wed, 14 Aug 2019 18:05:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 220312084F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 5F44CE34; Wed, 14 Aug 2019 18:04:13 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 092ADDD9 for ; Wed, 14 Aug 2019 18:04:09 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 9EC1D8A9 for ; Wed, 14 Aug 2019 18:04:07 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E3C4315BE; Wed, 14 Aug 2019 10:56:54 -0700 (PDT) Received: from fuggles.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id C68A83F694; Wed, 14 Aug 2019 10:56:52 -0700 (PDT) From: Will Deacon To: iommu@lists.linux-foundation.org Subject: [PATCH 06/13] iommu: Pass struct iommu_iotlb_gather to ->unmap() and ->iotlb_sync() Date: Wed, 14 Aug 2019 18:56:27 +0100 Message-Id: <20190814175634.21081-7-will@kernel.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190814175634.21081-1-will@kernel.org> References: <20190814175634.21081-1-will@kernel.org> Cc: Jean-Philippe Brucker , Vijay Kilary , Robin Murphy , Jan Glauber , Alex Williamson , Jayachandran Chandrasekharan Nair , Jon Masters , David Woodhouse , Will Deacon X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org To allow IOMMU drivers to batch up TLB flushing operations and postpone them until ->iotlb_sync() is called, extend the prototypes for the ->unmap() and ->iotlb_sync() IOMMU ops callbacks to take a pointer to the current iommu_iotlb_gather structure. All affected IOMMU drivers are updated, but there should be no functional change since the extra parameter is ignored for now. Signed-off-by: Will Deacon --- drivers/iommu/amd_iommu.c | 11 +++++++++-- drivers/iommu/arm-smmu-v3.c | 7 ++++--- drivers/iommu/arm-smmu.c | 5 +++-- drivers/iommu/exynos-iommu.c | 3 ++- drivers/iommu/intel-iommu.c | 3 ++- drivers/iommu/iommu.c | 2 +- drivers/iommu/ipmmu-vmsa.c | 12 +++++++++--- drivers/iommu/msm_iommu.c | 2 +- drivers/iommu/mtk_iommu.c | 13 ++++++++++--- drivers/iommu/mtk_iommu_v1.c | 3 ++- drivers/iommu/omap-iommu.c | 2 +- drivers/iommu/qcom_iommu.c | 12 +++++++++--- drivers/iommu/rockchip-iommu.c | 2 +- drivers/iommu/s390-iommu.c | 3 ++- drivers/iommu/tegra-gart.c | 12 +++++++++--- drivers/iommu/tegra-smmu.c | 2 +- drivers/iommu/virtio-iommu.c | 5 +++-- include/linux/iommu.h | 7 ++++--- 18 files changed, 73 insertions(+), 33 deletions(-) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index f93b148cf55e..29eeea914660 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -3055,7 +3055,8 @@ static int amd_iommu_map(struct iommu_domain *dom, unsigned long iova, } static size_t amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova, - size_t page_size) + size_t page_size, + struct iommu_iotlb_gather *gather) { struct protection_domain *domain = to_pdomain(dom); size_t unmap_size; @@ -3196,6 +3197,12 @@ static void amd_iommu_flush_iotlb_all(struct iommu_domain *domain) domain_flush_complete(dom); } +static void amd_iommu_iotlb_sync(struct iommu_domain *domain, + struct iommu_iotlb_gather *gather) +{ + amd_iommu_flush_iotlb_all(domain); +} + const struct iommu_ops amd_iommu_ops = { .capable = amd_iommu_capable, .domain_alloc = amd_iommu_domain_alloc, @@ -3214,7 +3221,7 @@ const struct iommu_ops amd_iommu_ops = { .is_attach_deferred = amd_iommu_is_attach_deferred, .pgsize_bitmap = AMD_IOMMU_PGSIZES, .flush_iotlb_all = amd_iommu_flush_iotlb_all, - .iotlb_sync = amd_iommu_flush_iotlb_all, + .iotlb_sync = amd_iommu_iotlb_sync, }; /***************************************************************************** diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 7e137e1e28f1..80753b8ca054 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1985,8 +1985,8 @@ static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova, return ops->map(ops, iova, paddr, size, prot); } -static size_t -arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size) +static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova, + size_t size, struct iommu_iotlb_gather *gather) { int ret; struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); @@ -2010,7 +2010,8 @@ static void arm_smmu_flush_iotlb_all(struct iommu_domain *domain) arm_smmu_tlb_inv_context(smmu_domain); } -static void arm_smmu_iotlb_sync(struct iommu_domain *domain) +static void arm_smmu_iotlb_sync(struct iommu_domain *domain, + struct iommu_iotlb_gather *gather) { struct arm_smmu_device *smmu = to_smmu_domain(domain)->smmu; diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index dc08db347ef3..e535ae2a9e65 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1301,7 +1301,7 @@ static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova, } static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova, - size_t size) + size_t size, struct iommu_iotlb_gather *gather) { struct io_pgtable_ops *ops = to_smmu_domain(domain)->pgtbl_ops; struct arm_smmu_device *smmu = to_smmu_domain(domain)->smmu; @@ -1329,7 +1329,8 @@ static void arm_smmu_flush_iotlb_all(struct iommu_domain *domain) } } -static void arm_smmu_iotlb_sync(struct iommu_domain *domain) +static void arm_smmu_iotlb_sync(struct iommu_domain *domain, + struct iommu_iotlb_gather *gather) { struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); struct arm_smmu_device *smmu = smmu_domain->smmu; diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index b0c1e5f9daae..cf5af34cb681 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -1130,7 +1130,8 @@ static void exynos_iommu_tlb_invalidate_entry(struct exynos_iommu_domain *domain } static size_t exynos_iommu_unmap(struct iommu_domain *iommu_domain, - unsigned long l_iova, size_t size) + unsigned long l_iova, size_t size, + struct iommu_iotlb_gather *gather) { struct exynos_iommu_domain *domain = to_exynos_domain(iommu_domain); sysmmu_iova_t iova = (sysmmu_iova_t)l_iova; diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index ac4172c02244..b9fb8d6ddc6e 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -5147,7 +5147,8 @@ static int intel_iommu_map(struct iommu_domain *domain, } static size_t intel_iommu_unmap(struct iommu_domain *domain, - unsigned long iova, size_t size) + unsigned long iova, size_t size, + struct iommu_iotlb_gather *gather) { struct dmar_domain *dmar_domain = to_dmar_domain(domain); struct page *freelist = NULL; diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index d67222fdfe44..70bfbcc09248 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1899,7 +1899,7 @@ static size_t __iommu_unmap(struct iommu_domain *domain, while (unmapped < size) { size_t pgsize = iommu_pgsize(domain, iova, size - unmapped); - unmapped_page = ops->unmap(domain, iova, pgsize); + unmapped_page = ops->unmap(domain, iova, pgsize, iotlb_gather); if (!unmapped_page) break; diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 2c14a2c65b22..a9332b893ce2 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -733,14 +733,14 @@ static int ipmmu_map(struct iommu_domain *io_domain, unsigned long iova, } static size_t ipmmu_unmap(struct iommu_domain *io_domain, unsigned long iova, - size_t size) + size_t size, struct iommu_iotlb_gather *gather) { struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain); return domain->iop->unmap(domain->iop, iova, size); } -static void ipmmu_iotlb_sync(struct iommu_domain *io_domain) +static void ipmmu_flush_iotlb_all(struct iommu_domain *io_domain) { struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain); @@ -748,6 +748,12 @@ static void ipmmu_iotlb_sync(struct iommu_domain *io_domain) ipmmu_tlb_flush_all(domain); } +static void ipmmu_iotlb_sync(struct iommu_domain *io_domain, + struct iommu_iotlb_gather *gather) +{ + ipmmu_flush_iotlb_all(io_domain); +} + static phys_addr_t ipmmu_iova_to_phys(struct iommu_domain *io_domain, dma_addr_t iova) { @@ -957,7 +963,7 @@ static const struct iommu_ops ipmmu_ops = { .detach_dev = ipmmu_detach_device, .map = ipmmu_map, .unmap = ipmmu_unmap, - .flush_iotlb_all = ipmmu_iotlb_sync, + .flush_iotlb_all = ipmmu_flush_iotlb_all, .iotlb_sync = ipmmu_iotlb_sync, .iova_to_phys = ipmmu_iova_to_phys, .add_device = ipmmu_add_device, diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c index 8b602384a385..681ab3d3376d 100644 --- a/drivers/iommu/msm_iommu.c +++ b/drivers/iommu/msm_iommu.c @@ -509,7 +509,7 @@ static int msm_iommu_map(struct iommu_domain *domain, unsigned long iova, } static size_t msm_iommu_unmap(struct iommu_domain *domain, unsigned long iova, - size_t len) + size_t len, struct iommu_iotlb_gather *gather) { struct msm_priv *priv = to_msm_priv(domain); unsigned long flags; diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index fed77658d67e..c870f1674903 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -371,7 +371,8 @@ static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova, } static size_t mtk_iommu_unmap(struct iommu_domain *domain, - unsigned long iova, size_t size) + unsigned long iova, size_t size, + struct iommu_iotlb_gather *gather) { struct mtk_iommu_domain *dom = to_mtk_domain(domain); unsigned long flags; @@ -384,7 +385,13 @@ static size_t mtk_iommu_unmap(struct iommu_domain *domain, return unmapsz; } -static void mtk_iommu_iotlb_sync(struct iommu_domain *domain) +static void mtk_iommu_flush_iotlb_all(struct iommu_domain *domain) +{ + mtk_iommu_tlb_sync(mtk_iommu_get_m4u_data()); +} + +static void mtk_iommu_iotlb_sync(struct iommu_domain *domain, + struct iommu_iotlb_gather *gather) { mtk_iommu_tlb_sync(mtk_iommu_get_m4u_data()); } @@ -490,7 +497,7 @@ static const struct iommu_ops mtk_iommu_ops = { .detach_dev = mtk_iommu_detach_device, .map = mtk_iommu_map, .unmap = mtk_iommu_unmap, - .flush_iotlb_all = mtk_iommu_iotlb_sync, + .flush_iotlb_all = mtk_iommu_flush_iotlb_all, .iotlb_sync = mtk_iommu_iotlb_sync, .iova_to_phys = mtk_iommu_iova_to_phys, .add_device = mtk_iommu_add_device, diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index abeeac488372..7b92ddd5d9fd 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -324,7 +324,8 @@ static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova, } static size_t mtk_iommu_unmap(struct iommu_domain *domain, - unsigned long iova, size_t size) + unsigned long iova, size_t size, + struct iommu_iotlb_gather *gather) { struct mtk_iommu_domain *dom = to_mtk_domain(domain); unsigned long flags; diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index dfb961d8c21b..8039bc5ee425 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1149,7 +1149,7 @@ static int omap_iommu_map(struct iommu_domain *domain, unsigned long da, } static size_t omap_iommu_unmap(struct iommu_domain *domain, unsigned long da, - size_t size) + size_t size, struct iommu_iotlb_gather *gather) { struct omap_iommu_domain *omap_domain = to_omap_domain(domain); struct device *dev = omap_domain->dev; diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c index fd9d9f4da735..a7432991fa04 100644 --- a/drivers/iommu/qcom_iommu.c +++ b/drivers/iommu/qcom_iommu.c @@ -417,7 +417,7 @@ static int qcom_iommu_map(struct iommu_domain *domain, unsigned long iova, } static size_t qcom_iommu_unmap(struct iommu_domain *domain, unsigned long iova, - size_t size) + size_t size, struct iommu_iotlb_gather *gather) { size_t ret; unsigned long flags; @@ -441,7 +441,7 @@ static size_t qcom_iommu_unmap(struct iommu_domain *domain, unsigned long iova, return ret; } -static void qcom_iommu_iotlb_sync(struct iommu_domain *domain) +static void qcom_iommu_flush_iotlb_all(struct iommu_domain *domain) { struct qcom_iommu_domain *qcom_domain = to_qcom_iommu_domain(domain); struct io_pgtable *pgtable = container_of(qcom_domain->pgtbl_ops, @@ -454,6 +454,12 @@ static void qcom_iommu_iotlb_sync(struct iommu_domain *domain) pm_runtime_put_sync(qcom_domain->iommu->dev); } +static void qcom_iommu_iotlb_sync(struct iommu_domain *domain, + struct iommu_iotlb_gather *gather) +{ + qcom_iommu_flush_iotlb_all(domain); +} + static phys_addr_t qcom_iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) { @@ -581,7 +587,7 @@ static const struct iommu_ops qcom_iommu_ops = { .detach_dev = qcom_iommu_detach_dev, .map = qcom_iommu_map, .unmap = qcom_iommu_unmap, - .flush_iotlb_all = qcom_iommu_iotlb_sync, + .flush_iotlb_all = qcom_iommu_flush_iotlb_all, .iotlb_sync = qcom_iommu_iotlb_sync, .iova_to_phys = qcom_iommu_iova_to_phys, .add_device = qcom_iommu_add_device, diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index dc26d74d79c2..26290f310f90 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -794,7 +794,7 @@ static int rk_iommu_map(struct iommu_domain *domain, unsigned long _iova, } static size_t rk_iommu_unmap(struct iommu_domain *domain, unsigned long _iova, - size_t size) + size_t size, struct iommu_iotlb_gather *gather) { struct rk_iommu_domain *rk_domain = to_rk_domain(domain); unsigned long flags; diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c index 22d4db302c1c..3b0b18e23187 100644 --- a/drivers/iommu/s390-iommu.c +++ b/drivers/iommu/s390-iommu.c @@ -314,7 +314,8 @@ static phys_addr_t s390_iommu_iova_to_phys(struct iommu_domain *domain, } static size_t s390_iommu_unmap(struct iommu_domain *domain, - unsigned long iova, size_t size) + unsigned long iova, size_t size, + struct iommu_iotlb_gather *gather) { struct s390_domain *s390_domain = to_s390_domain(domain); int flags = ZPCI_PTE_INVALID; diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index 6d40bc1b38bf..3924f7c05544 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -207,7 +207,7 @@ static inline int __gart_iommu_unmap(struct gart_device *gart, } static size_t gart_iommu_unmap(struct iommu_domain *domain, unsigned long iova, - size_t bytes) + size_t bytes, struct iommu_iotlb_gather *gather) { struct gart_device *gart = gart_handle; int err; @@ -273,11 +273,17 @@ static int gart_iommu_of_xlate(struct device *dev, return 0; } -static void gart_iommu_sync(struct iommu_domain *domain) +static void gart_iommu_sync_map(struct iommu_domain *domain) { FLUSH_GART_REGS(gart_handle); } +static void gart_iommu_sync(struct iommu_domain *domain, + struct iommu_iotlb_gather *gather) +{ + gart_iommu_sync_map(domain); +} + static const struct iommu_ops gart_iommu_ops = { .capable = gart_iommu_capable, .domain_alloc = gart_iommu_domain_alloc, @@ -292,7 +298,7 @@ static const struct iommu_ops gart_iommu_ops = { .iova_to_phys = gart_iommu_iova_to_phys, .pgsize_bitmap = GART_IOMMU_PGSIZES, .of_xlate = gart_iommu_of_xlate, - .iotlb_sync_map = gart_iommu_sync, + .iotlb_sync_map = gart_iommu_sync_map, .iotlb_sync = gart_iommu_sync, }; diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index c4a652b227f8..7293fc3f796d 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -680,7 +680,7 @@ static int tegra_smmu_map(struct iommu_domain *domain, unsigned long iova, } static size_t tegra_smmu_unmap(struct iommu_domain *domain, unsigned long iova, - size_t size) + size_t size, struct iommu_iotlb_gather *gather) { struct tegra_smmu_as *as = to_smmu_as(domain); dma_addr_t pte_dma; diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index 433f4d2ee956..5f9f91a4d7f3 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -742,7 +742,7 @@ static int viommu_map(struct iommu_domain *domain, unsigned long iova, } static size_t viommu_unmap(struct iommu_domain *domain, unsigned long iova, - size_t size) + size_t size, struct iommu_iotlb_gather *gather) { int ret = 0; size_t unmapped; @@ -788,7 +788,8 @@ static phys_addr_t viommu_iova_to_phys(struct iommu_domain *domain, return paddr; } -static void viommu_iotlb_sync(struct iommu_domain *domain) +static void viommu_iotlb_sync(struct iommu_domain *domain, + struct iommu_iotlb_gather *gather) { struct viommu_domain *vdomain = to_viommu_domain(domain); diff --git a/include/linux/iommu.h b/include/linux/iommu.h index ad41aee55bc6..64ebaff33455 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -258,10 +258,11 @@ struct iommu_ops { int (*map)(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, size_t size, int prot); size_t (*unmap)(struct iommu_domain *domain, unsigned long iova, - size_t size); + size_t size, struct iommu_iotlb_gather *iotlb_gather); void (*flush_iotlb_all)(struct iommu_domain *domain); void (*iotlb_sync_map)(struct iommu_domain *domain); - void (*iotlb_sync)(struct iommu_domain *domain); + void (*iotlb_sync)(struct iommu_domain *domain, + struct iommu_iotlb_gather *iotlb_gather); phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova); int (*add_device)(struct device *dev); void (*remove_device)(struct device *dev); @@ -502,7 +503,7 @@ static inline void iommu_tlb_sync(struct iommu_domain *domain, struct iommu_iotlb_gather *iotlb_gather) { if (domain->ops->iotlb_sync) - domain->ops->iotlb_sync(domain); + domain->ops->iotlb_sync(domain, iotlb_gather); iommu_iotlb_gather_init(iotlb_gather); } -- 2.11.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu