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Tsirkin" , Marcel Apfelbaum , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , Eduardo Habkost , Jon Maloy , Siqi Chen , Michael Tokarev Subject: [PATCH v8 5/8] memory: Allow disabling re-entrancy checking per-MR Date: Fri, 21 Apr 2023 10:27:33 -0400 Message-Id: <20230421142736.2817601-6-alxndr@bu.edu> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230421142736.2817601-1-alxndr@bu.edu> References: <20230421142736.2817601-1-alxndr@bu.edu> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CES-GSUITE_AUTH: bf3aNvsZpxl8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=68.232.153.39; envelope-from=alxndr@bu.edu; helo=esa1.hc2706-39.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @bu.edu) X-ZM-MESSAGEID: 1682087371798100005 Content-Type: text/plain; charset="utf-8" Signed-off-by: Alexander Bulekov Reviewed-by: Thomas Huth Reviewed-by: Darren Kenny --- include/exec/memory.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index 6c0a5e68d3..4e9531bd8a 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -793,6 +793,9 @@ struct MemoryRegion { unsigned ioeventfd_nb; MemoryRegionIoeventfd *ioeventfds; RamDiscardManager *rdm; /* Only for RAM */ + + /* For devices designed to perform re-entrant IO into their own IO MRs= */ + bool disable_reentrancy_guard; }; =20 struct IOMMUMemoryRegion { --=20 2.39.0