From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59705) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1budg4-0006Ra-1e for qemu-devel@nongnu.org; Thu, 13 Oct 2016 06:55:57 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1budg2-0000iR-Va for qemu-devel@nongnu.org; Thu, 13 Oct 2016 06:55:56 -0400 From: Eric Auger Date: Thu, 13 Oct 2016 12:55:42 +0200 Message-Id: <1476356143-10577-2-git-send-email-eric.auger@redhat.com> In-Reply-To: <1476356143-10577-1-git-send-email-eric.auger@redhat.com> References: <1476356143-10577-1-git-send-email-eric.auger@redhat.com> Subject: [Qemu-devel] [PATCH 1/2] ACPI: Add IORT Structure definition List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: eric.auger.pro@gmail.com, eric.auger@redhat.com, prem.mallappa@broadcom.com, peter.maydell@linaro.org, qemu-arm@nongnu.org, qemu-devel@nongnu.org, shannon.zhao@linaro.org Cc: christoffer.dall@linaro.org, drjones@redhat.com, tn@semihalf.com From: Prem Mallappa ACPI Spec 6.0 introduces IO Remapping Table Structure. This patch introduces the definitions required to describe the IO relationship between the PCIe root complex and the ITS. This conforms to: "IO Remapping Table System Software on ARM Platforms", Document number: ARM DEN 0049B, October 2015. Signed-off-by: Prem Mallappa Signed-off-by: Eric Auger --- include/hw/acpi/acpi-defs.h | 91 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) diff --git a/include/hw/acpi/acpi-defs.h b/include/hw/acpi/acpi-defs.h index 9c1b7cb..9ad3c01 100644 --- a/include/hw/acpi/acpi-defs.h +++ b/include/hw/acpi/acpi-defs.h @@ -609,4 +609,95 @@ typedef struct AcpiDmarHardwareUnit AcpiDmarHardwareUnit; /* Masks for Flags field above */ #define ACPI_DMAR_INCLUDE_PCI_ALL 1 +/* + * Input Output Remapping Table (IORT) + * Conforms to "IO Remapping Table System Software on ARM Platforms", + * Document number: ARM DEN 0049B, October 2015 + */ + +struct AcpiIortTable { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + uint32_t node_count; + uint32_t node_offset; + uint32_t reserved; +} QEMU_PACKED; +typedef struct AcpiIortTable AcpiIortTable; + +/* + * IORT subtables + */ + +struct AcpiIortNode { + uint8_t type; + uint16_t length; + uint8_t revision; + uint32_t reserved; + uint32_t mapping_count; + uint32_t mapping_offset; +} QEMU_PACKED; +typedef struct AcpiIortNode AcpiIortNode; + +/* Values for subtable Type above */ +enum { + ACPI_IORT_NODE_ITS_GROUP = 0x00, + ACPI_IORT_NODE_NAMED_COMPONENT = 0x01, + ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02, + ACPI_IORT_NODE_SMMU = 0x03, + ACPI_IORT_NODE_SMMU_V3 = 0x04 +}; + +struct AcpiIortIdMapping { + uint32_t input_base; + uint32_t id_count; + uint32_t output_base; + uint32_t output_reference; + uint32_t flags; +} QEMU_PACKED; +typedef struct AcpiIortIdMapping AcpiIortIdMapping; + +/* Masks for Flags field above for IORT subtable */ +#define ACPI_IORT_ID_SINGLE_MAPPING (1) + +struct AcpiIortMemoryAccess { + uint32_t cache_coherency; + uint8_t hints; + uint16_t reserved; + uint8_t memory_flags; +} QEMU_PACKED; +typedef struct AcpiIortMemoryAccess AcpiIortMemoryAccess; + +/* Values for cache_coherency field above */ +#define ACPI_IORT_NODE_COHERENT 0x00000001 +#define ACPI_IORT_NODE_NOT_COHERENT 0x00000000 + +/* Masks for Hints field above */ +#define ACPI_IORT_HT_TRANSIENT (1) +#define ACPI_IORT_HT_WRITE (1 << 1) +#define ACPI_IORT_HT_READ (1 << 2) +#define ACPI_IORT_HT_OVERRIDE (1 << 3) + +/* Masks for memory_flags field above */ +#define ACPI_IORT_MF_COHERENCY (1) +#define ACPI_IORT_MF_ATTRIBUTES (1 << 1) + +/* + * IORT node specific subtables + */ + +struct AcpiIortItsGroup { + AcpiIortNode iort_node; + uint32_t its_count; + uint32_t identifiers[0]; +} QEMU_PACKED; +typedef struct AcpiIortItsGroup AcpiIortItsGroup; + +struct AcpiIortRC { + AcpiIortNode iort_node; + AcpiIortMemoryAccess memory_properties; + uint32_t ats_attribute; + uint32_t pci_segment_number; + AcpiIortIdMapping id_mapping_array[0]; +} QEMU_PACKED; +typedef struct AcpiIortRC AcpiIortRC; + #endif -- 2.5.5