From mboxrd@z Thu Jan  1 00:00:00 1970
From: arindam.nath-5C7GfCeVMHo@public.gmane.org
Subject: [PATCH] iommu/amd: flush IOTLB for specific domains only (v2)
Date: Fri, 19 May 2017 15:32:31 +0530
Message-ID: <1495188151-14358-1-git-send-email-arindam.nath@amd.com>
References: <20170407102039.GW7266@8bytes.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
In-Reply-To: <20170407102039.GW7266-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/amd-gfx>,
 <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/amd-gfx>
List-Post: <mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
List-Help: <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/amd-gfx>,
 <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=subscribe>
Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Sender: "amd-gfx" <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Cc: John.Bridgman-5C7GfCeVMHo@public.gmane.org, Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, drake-6IF/jdPJHihWk0Htik3J/w@public.gmane.org, Arindam Nath <arindam.nath-5C7GfCeVMHo@public.gmane.org>, Craig Stein <stein12c-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Suravee.Suthikulpanit-5C7GfCeVMHo@public.gmane.org, Alexander.Deucher-5C7GfCeVMHo@public.gmane.org, Felix.Kuehling-5C7GfCeVMHo@public.gmane.org, linux-6IF/jdPJHihWk0Htik3J/w@public.gmane.org, michel-otUistvHUpPR7s880joybQ@public.gmane.org
List-Id: iommu@lists.linux-foundation.org
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