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envelope-from=Ashish.Kalra@amd.com; helo=NAM04-DM6-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/16 13:49:45 X-ACL-Warn: Detected OS = Windows NT kernel [generic] [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas.Lendacky@amd.com, brijesh.singh@amd.com, ehabkost@redhat.com, kvm@vger.kernel.org, mst@redhat.com, mtosatti@redhat.com, ssg.sos.patches@amd.com, armbru@redhat.com, qemu-devel@nongnu.org, dgilbert@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Brijesh Singh From: Brijesh Singh Extend the MemTxAttrs to include a 'debug' flag. The flag can be used as general indicator that operation was triggered by the debugger. A subsequent patch will set the debug=1 when issuing a memory access from the gdbstub or HMP commands. This is a prerequisite to support debugging an encrypted guest. When a request with debug=1 is seen, the encryption APIs will be used to access the guest memory. Signed-off-by: Brijesh Singh Signed-off-by: Ashish Kalra --- include/exec/memattrs.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h index 95f2d20d55..c8b56389d6 100644 --- a/include/exec/memattrs.h +++ b/include/exec/memattrs.h @@ -49,6 +49,8 @@ typedef struct MemTxAttrs { unsigned int target_tlb_bit0 : 1; unsigned int target_tlb_bit1 : 1; unsigned int target_tlb_bit2 : 1; + /* Memory access request from the debugger */ + unsigned int debug:1; } MemTxAttrs; /* Bus masters which don't specify any attributes will get this,