Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1552779
| Path | csiph.com!aioe.org!bofh.it!news.nic.it!robomod |
|---|---|
| From | Sricharan R <sricharan@codeaurora.org> |
| Newsgroups | linux.kernel |
| Subject | [PATCH V9 1/9] iommu: add IOMMU_PRIV attribute |
| Date | Fri, 06 Jan 2017 14:40:01 +0100 |
| Message-ID | <sWCUp-2A2-7@gated-at.bofh.it> (permalink) |
| References | <sWCUp-2A2-9@gated-at.bofh.it> |
| X-Original-To | jcrouse@codeaurora.org, pdaly@codeaurora.org, jgebben@codeaurora.org, joro@8bytes.org, linux-kernel@vger.kernel.org, pratikp@codeaurora.org, iommu@lists.linux-foundation.org, robin.murphy@arm.com, tzeng@codeaurora.org, linux-arm-kernel@lists.infradead.org, will.deacon@arm.com, mitchelh@codeaurora.org, vinod.koul@intel.com, dan.j.williams@intel.com, linux@armlinux.org.uk |
| Dkim-Signature | v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1483709327; bh=pl8Docd9TuvwFCIKghi5ALMu2yX0ZxRDdIIW79fgXfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ReGeobcLH+f3ldaLgrBzFGw8lrB36qG7k1PFw4nTr2DMh2n4ae2sG1CC16KYCLpOC 7/Rb4DCbhk8PTv6O+kXXDWn5JDOwtwrQ3DV58uVwRJo3ksZyyWC466mhE9hOKQ4yHK NFvbk0R5Cgl0EBrWJIMHJckAmF7h1OV1/wCKbU6k= |
| Dkim-Signature | v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1483709327; bh=pl8Docd9TuvwFCIKghi5ALMu2yX0ZxRDdIIW79fgXfU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ReGeobcLH+f3ldaLgrBzFGw8lrB36qG7k1PFw4nTr2DMh2n4ae2sG1CC16KYCLpOC 7/Rb4DCbhk8PTv6O+kXXDWn5JDOwtwrQ3DV58uVwRJo3ksZyyWC466mhE9hOKQ4yHK NFvbk0R5Cgl0EBrWJIMHJckAmF7h1OV1/wCKbU6k= |
| Dmarc-Filter | OpenDMARC Filter v1.3.1 smtp.codeaurora.org 0405C6115A |
| Authentication-Results | pdx-caf-mail.web.codeaurora.org; dmarc=none header.from=codeaurora.org |
| Authentication-Results | pdx-caf-mail.web.codeaurora.org; spf=pass smtp.mailfrom=sricharan@codeaurora.org |
| X-Mailer | git-send-email 1.8.2.1 |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 33 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | sricharan@codeaurora.org |
| X-Original-Date | Fri, 6 Jan 2017 18:58:08 +0530 |
| X-Original-Message-ID | <1483709296-32761-2-git-send-email-sricharan@codeaurora.org> |
| X-Original-References | <1483709296-32761-1-git-send-email-sricharan@codeaurora.org> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1552779 |
Show key headers only | View raw
From: Mitchel Humpherys <mitchelh@codeaurora.org> Add the IOMMU_PRIV attribute, which is used to indicate privileged mappings. Reviewed-by: Robin Murphy <robin.murphy@arm.com> Tested-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org> Acked-by: Will Deacon <will.deacon@arm.com> --- include/linux/iommu.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 0ff5111..69e2417 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -31,6 +31,13 @@ #define IOMMU_CACHE (1 << 2) /* DMA cache coherency */ #define IOMMU_NOEXEC (1 << 3) #define IOMMU_MMIO (1 << 4) /* e.g. things like MSI doorbells */ +/* + * This is to make the IOMMU API setup privileged + * mapppings accessible by the master only at higher + * privileged execution level and inaccessible at + * less privileged levels. + */ +#define IOMMU_PRIV (1 << 5) struct iommu_ops; struct iommu_group; -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
Back to linux.kernel | Previous | Next | Find similar | Unroll thread
[PATCH V9 1/9] iommu: add IOMMU_PRIV attribute Sricharan R <sricharan@codeaurora.org> - 2017-01-06 14:40 +0100
csiph-web