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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, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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: Clément Mathieu--Drif --- include/exec/memory.h | 33 ++++++++++++++++++++++++++------- 1 file changed, 26 insertions(+), 7 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index 8626a355b3..304504de02 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -110,22 +110,41 @@ struct MemoryRegionSection { typedef struct IOMMUTLBEntry IOMMUTLBEntry; -/* 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 = 0, IOMMU_RO = 1, IOMMU_WO = 2, IOMMU_RW = 3, + IOMMU_EXEC = 4, + IOMMU_PRIV = 8, + IOMMU_GLOBAL = 16, + IOMMU_UNTRANSLATED_ONLY = 32, } IOMMUAccessFlags; -#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)) struct IOMMUTLBEntry { - AddressSpace *target_as; - hwaddr iova; - hwaddr translated_addr; - hwaddr addr_mask; /* 0xfff = 4k translation */ - IOMMUAccessFlags perm; + AddressSpace *target_as; + hwaddr iova; + hwaddr translated_addr; + hwaddr addr_mask; /* 0xfff = 4k translation */ + IOMMUAccessFlags perm; }; /*