Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755652AbYLIO1j (ORCPT ); Tue, 9 Dec 2008 09:27:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754415AbYLIOR3 (ORCPT ); Tue, 9 Dec 2008 09:17:29 -0500 Received: from outbound-va3.frontbridge.com ([216.32.180.16]:40708 "EHLO VA3EHSOBE002.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754107AbYLIOQn (ORCPT ); Tue, 9 Dec 2008 09:16:43 -0500 X-BigFish: VPS3(zzzzzzz32i43j66h) X-Spam-TCS-SCL: 5:0 X-FB-SS: 5, X-WSS-ID: 0KBM4ZA-03-KKZ-01 From: Joerg Roedel To: avi@redhat.com, mingo@redhat.com, dwmw2@infradead.org, gregkh@suse.de, weidong.han@intel.com CC: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Joerg Roedel Subject: [PATCH 18/21] AMD IOMMU: add domain map function for IOMMU API Date: Tue, 9 Dec 2008 15:16:15 +0100 Message-ID: <1228832178-13429-19-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.5.6.4 In-Reply-To: <1228832178-13429-18-git-send-email-joerg.roedel@amd.com> References: <20081209141143.GW12816@amd.com> <1228832178-13429-1-git-send-email-joerg.roedel@amd.com> <1228832178-13429-2-git-send-email-joerg.roedel@amd.com> <1228832178-13429-3-git-send-email-joerg.roedel@amd.com> <1228832178-13429-4-git-send-email-joerg.roedel@amd.com> <1228832178-13429-5-git-send-email-joerg.roedel@amd.com> <1228832178-13429-6-git-send-email-joerg.roedel@amd.com> <1228832178-13429-7-git-send-email-joerg.roedel@amd.com> <1228832178-13429-8-git-send-email-joerg.roedel@amd.com> <1228832178-13429-9-git-send-email-joerg.roedel@amd.com> <1228832178-13429-10-git-send-email-joerg.roedel@amd.com> <1228832178-13429-11-git-send-email-joerg.roedel@amd.com> <1228832178-13429-12-git-send-email-joerg.roedel@amd.com> <1228832178-13429-13-git-send-email-joerg.roedel@amd.com> <1228832178-13429-14-git-send-email-joerg.roedel@amd.com> <1228832178-13429-15-git-send-email-joerg.roedel@amd.com> <1228832178-13429-16-git-send-email-joerg.roedel@amd.com> <1228832178-13429-17-git-send-email-joerg.roedel@amd.com> <1228832178-13429-18-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 09 Dec 2008 14:16:19.0317 (UTC) FILETIME=[B49C9A50:01C95A08] MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1413 Lines: 52 Impact: add a generic function to map pages into protection domains Signed-off-by: Joerg Roedel --- arch/x86/kernel/amd_iommu.c | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+), 0 deletions(-) diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 97eb60d..511f782 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -1635,3 +1635,31 @@ static int amd_iommu_attach_device(struct iommu_domain *dom, return 0; } +static int amd_iommu_map_range(struct iommu_domain *dom, + unsigned long iova, phys_addr_t paddr, + size_t size, int iommu_prot) +{ + struct protection_domain *domain = dom->priv; + unsigned long i, npages = iommu_num_pages(paddr, size, PAGE_SIZE); + int prot = 0; + int ret; + + if (iommu_prot & IOMMU_READ) + prot |= IOMMU_PROT_IR; + if (iommu_prot & IOMMU_WRITE) + prot |= IOMMU_PROT_IW; + + iova &= PAGE_MASK; + paddr &= PAGE_MASK; + + for (i = 0; i < npages; ++i) { + ret = iommu_map_page(domain, iova, paddr, prot); + if (ret) + return ret; + + iova += PAGE_SIZE; + paddr += PAGE_SIZE; + } + + return 0; +} -- 1.5.6.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/