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authorPeter Xu <peterx@redhat.com>2016-07-14 13:56:20 +0800
committerMichael S. Tsirkin <mst@redhat.com>2016-07-20 19:30:27 +0300
commit1f91acee179873ce78985b436051479217c46580 (patch)
treeb9c0d32f96060ee2b9b9a3bdf174b4ca3e3e438a
parent80de52ba87d44bf63157900b8dd5ccd5bd795fd4 (diff)
intel_iommu: define several structs for IOMMU IR
Several data structs are defined to better support the rest of the patches: IRTE to parse remapping table entries, and IOAPIC/MSI related structure bits to parse interrupt entries to be filled in by guest kernel. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-rw-r--r--include/hw/i386/intel_iommu.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h
index ce515c42f2..260aa8ebf3 100644
--- a/include/hw/i386/intel_iommu.h
+++ b/include/hw/i386/intel_iommu.h
@@ -52,6 +52,8 @@ typedef struct IntelIOMMUState IntelIOMMUState;
typedef struct VTDAddressSpace VTDAddressSpace;
typedef struct VTDIOTLBEntry VTDIOTLBEntry;
typedef struct VTDBus VTDBus;
+typedef union VTD_IRTE VTD_IRTE;
+typedef union VTD_IR_MSIAddress VTD_IR_MSIAddress;
/* Context-Entry */
struct VTDContextEntry {
@@ -90,6 +92,78 @@ struct VTDIOTLBEntry {
bool write_flags;
};
+/* Interrupt Remapping Table Entry Definition */
+union VTD_IRTE {
+ struct {
+#ifdef HOST_WORDS_BIGENDIAN
+ uint32_t dest_id:32; /* Destination ID */
+ uint32_t __reserved_1:8; /* Reserved 1 */
+ uint32_t vector:8; /* Interrupt Vector */
+ uint32_t irte_mode:1; /* IRTE Mode */
+ uint32_t __reserved_0:3; /* Reserved 0 */
+ uint32_t __avail:4; /* Available spaces for software */
+ uint32_t delivery_mode:3; /* Delivery Mode */
+ uint32_t trigger_mode:1; /* Trigger Mode */
+ uint32_t redir_hint:1; /* Redirection Hint */
+ uint32_t dest_mode:1; /* Destination Mode */
+ uint32_t fault_disable:1; /* Fault Processing Disable */
+ uint32_t present:1; /* Whether entry present/available */
+#else
+ uint32_t present:1; /* Whether entry present/available */
+ uint32_t fault_disable:1; /* Fault Processing Disable */
+ uint32_t dest_mode:1; /* Destination Mode */
+ uint32_t redir_hint:1; /* Redirection Hint */
+ uint32_t trigger_mode:1; /* Trigger Mode */
+ uint32_t delivery_mode:3; /* Delivery Mode */
+ uint32_t __avail:4; /* Available spaces for software */
+ uint32_t __reserved_0:3; /* Reserved 0 */
+ uint32_t irte_mode:1; /* IRTE Mode */
+ uint32_t vector:8; /* Interrupt Vector */
+ uint32_t __reserved_1:8; /* Reserved 1 */
+ uint32_t dest_id:32; /* Destination ID */
+#endif
+ uint16_t source_id:16; /* Source-ID */
+#ifdef HOST_WORDS_BIGENDIAN
+ uint64_t __reserved_2:44; /* Reserved 2 */
+ uint64_t sid_vtype:2; /* Source-ID Validation Type */
+ uint64_t sid_q:2; /* Source-ID Qualifier */
+#else
+ uint64_t sid_q:2; /* Source-ID Qualifier */
+ uint64_t sid_vtype:2; /* Source-ID Validation Type */
+ uint64_t __reserved_2:44; /* Reserved 2 */
+#endif
+ } QEMU_PACKED;
+ uint64_t data[2];
+};
+
+#define VTD_IR_INT_FORMAT_COMPAT (0) /* Compatible Interrupt */
+#define VTD_IR_INT_FORMAT_REMAP (1) /* Remappable Interrupt */
+
+/* Programming format for MSI/MSI-X addresses */
+union VTD_IR_MSIAddress {
+ struct {
+#ifdef HOST_WORDS_BIGENDIAN
+ uint32_t __head:12; /* Should always be: 0x0fee */
+ uint32_t index_l:15; /* Interrupt index bit 14-0 */
+ uint32_t int_mode:1; /* Interrupt format */
+ uint32_t sub_valid:1; /* SHV: Sub-Handle Valid bit */
+ uint32_t index_h:1; /* Interrupt index bit 15 */
+ uint32_t __not_care:2;
+#else
+ uint32_t __not_care:2;
+ uint32_t index_h:1; /* Interrupt index bit 15 */
+ uint32_t sub_valid:1; /* SHV: Sub-Handle Valid bit */
+ uint32_t int_mode:1; /* Interrupt format */
+ uint32_t index_l:15; /* Interrupt index bit 14-0 */
+ uint32_t __head:12; /* Should always be: 0x0fee */
+#endif
+ } QEMU_PACKED;
+ uint32_t data;
+};
+
+/* When IR is enabled, all MSI/MSI-X data bits should be zero */
+#define VTD_IR_MSI_DATA (0)
+
/* The iommu (DMAR) device state struct */
struct IntelIOMMUState {
X86IOMMUState x86_iommu;