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DM2PR12MB0156; 20:ObIx44ObnTuhrZvxfEKXtJQ9RGtjFtVEonOIMTh0Kl6E23IDRsGqF3RtwZVwc+NHnfxU7Jz0mGdz1uTZVn9DIGzNuLecARaX/OjBUtQ2DiEVHRqaix22eI9jDeB0iZ6oWi29lOrhHbjo+P9w/UPo27ZB4eQK/aOtFqzZiOtWyNAQxcf0spt9Mz69J2AxM9NG0vzZe0ho8aR7L5a5uBTkes8Fc6sn478k0ioA+0GpQS4Qph045rG8lLWrx/vStyEr X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Mar 2018 12:49:24.2215 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a3e526aa-fb23-48d7-5c3a-08d584f30668 X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM2PR12MB0156 X-detected-operating-system: by eggs.gnu.org: Windows 7 or 8 [fuzzy] X-Received-From: 104.47.40.68 Subject: [Qemu-devel] [PATCH v12 01/28] memattrs: add debug attribute X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Brijesh Singh , kvm@vger.kernel.org, "Michael S. Tsirkin" , Stefan Hajnoczi , Alexander Graf , "Edgar E. Iglesias" , Markus Armbruster , Bruce Rogers , Christian Borntraeger , Marcel Apfelbaum , Borislav Petkov , Thomas Lendacky , Eduardo Habkost , Richard Henderson , "Dr. David Alan Gilbert" , Alistair Francis , Cornelia Huck , Peter Crosthwaite , Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Extend the MemTxAttrs to include 'debug' flag. The flag can be used as general indicator that operation was triggered by the debugger. Later in the patch series we set the debug=1 when issuing a memory access from the gdbstub or HMP commands. This patch is prerequisite to support debugging the encrypted guest. If we see request with debug=1 then we will need to use encryption APIs to access the guest memory. Cc: Alistair Francis Cc: Peter Maydell Cc: "Edgar E. Iglesias" Cc: Richard Henderson Cc: Paolo Bonzini Reviewed-by: "Edgar E. Iglesias" Signed-off-by: Brijesh Singh --- include/exec/memattrs.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h index d4a16420984b..08099e4f7e72 100644 --- a/include/exec/memattrs.h +++ b/include/exec/memattrs.h @@ -37,6 +37,8 @@ typedef struct MemTxAttrs { unsigned int user:1; /* Requester ID (for MSI for example) */ unsigned int requester_id:16; + /* Memory access request from the debugger */ + unsigned int debug:1; } MemTxAttrs; /* Bus masters which don't specify any attributes will get this,