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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=80.78.11.85; envelope-from=clement.mathieu--drif@eviden.com; helo=smarthost4.eviden.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 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 @eviden.com) X-ZM-MESSAGEID: 1750399084780116600 Content-Type: text/plain; charset="utf-8" The address_type bit will be set to PCI_AT_TRANSLATED by devices that use cached addresses obtained via ATS. Signed-off-by: Clement Mathieu--Drif --- include/exec/memattrs.h | 3 +++ include/hw/pci/pci.h | 9 +++++++++ 2 files changed, 12 insertions(+) diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h index 8db1d30464..52ee955249 100644 --- a/include/exec/memattrs.h +++ b/include/exec/memattrs.h @@ -54,6 +54,9 @@ typedef struct MemTxAttrs { */ unsigned int pid:8; =20 + /* PCI - IOMMU operations, see PCIAddressType */ + unsigned int address_type:1; + /* * Bus masters which don't specify any attributes will get this * (via the MEMTXATTRS_UNSPECIFIED constant), so that we can diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index df3cc7b875..6b7d3ac8a3 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -134,6 +134,15 @@ struct PCIHostDeviceAddress { unsigned int function; }; =20 +/* + * Represents the Address Type (AT) field in a PCI request, + * see MemTxAttrs.address_type + */ +typedef enum PCIAddressType { + PCI_AT_UNTRANSLATED =3D 0, /* Default when no attribute is set */ + PCI_AT_TRANSLATED =3D 1, +} PCIAddressType; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=80.78.11.85; envelope-from=clement.mathieu--drif@eviden.com; helo=smarthost4.eviden.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 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 @eviden.com) X-ZM-MESSAGEID: 1750399090757116600 Content-Type: text/plain; charset="utf-8" This will be necessary for devices implementing ATS. We also define a new macro IOMMU_ACCESS_FLAG_FULL in addition to IOMMU_ACCESS_FLAG to support more access flags. IOMMU_ACCESS_FLAG is kept for convenience and backward compatibility. Here are the flags added (defined by the PCIe 5 specification) : - Execute Requested - Privileged Mode Requested - Global - Untranslated Only IOMMU_ACCESS_FLAG sets the additional flags to 0 Signed-off-by: Clement Mathieu--Drif --- include/system/memory.h | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/include/system/memory.h b/include/system/memory.h index 0848690ea4..5c4cbe838a 100644 --- a/include/system/memory.h +++ b/include/system/memory.h @@ -109,15 +109,34 @@ struct MemoryRegionSection { =20 typedef struct IOMMUTLBEntry IOMMUTLBEntry; =20 -/* See address_space_translate: bit 0 is read, bit 1 is write. */ +/* + * See address_space_translate: + * - bit 0 : read + * - bit 1 : write + * - bit 2 : exec + * - bit 3 : priv + * - bit 4 : global + * - bit 5 : untranslated only + */ typedef enum { IOMMU_NONE =3D 0, IOMMU_RO =3D 1, IOMMU_WO =3D 2, IOMMU_RW =3D 3, + IOMMU_EXEC =3D 4, + IOMMU_PRIV =3D 8, + IOMMU_GLOBAL =3D 16, + IOMMU_UNTRANSLATED_ONLY =3D 32, } IOMMUAccessFlags; =20 -#define IOMMU_ACCESS_FLAG(r, w) (((r) ? IOMMU_RO : 0) | ((w) ? IOMMU_WO : = 0)) +#define IOMMU_ACCESS_FLAG(r, w) (((r) ? IOMMU_RO : 0) | \ + ((w) ? IOMMU_WO : 0)) +#define IOMMU_ACCESS_FLAG_FULL(r, w, x, p, g, uo) \ + (IOMMU_ACCESS_FLAG(r, w) | \ + ((x) ? IOMMU_EXEC : 0) | \ + ((p) ? IOMMU_PRIV : 0) | \ + ((g) ? IOMMU_GLOBAL : 0) | \ + ((uo) ? IOMMU_UNTRANSLATED_ONLY : 0)) =20 struct IOMMUTLBEntry { AddressSpace *target_as; --=20 2.49.0