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-rw-r--r--include/block/nvme.h65
-rw-r--r--include/hw/i2c/aspeed_i2c.h289
-rw-r--r--include/hw/pci/pci_ids.h1
-rw-r--r--include/hw/registerfields.h70
-rw-r--r--include/io/channel-null.h55
-rw-r--r--include/qemu/host-utils.h3
-rw-r--r--include/qemu/int128.h38
7 files changed, 512 insertions, 9 deletions
diff --git a/include/block/nvme.h b/include/block/nvme.h
index 3737351cc8..373c70b5ca 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -595,6 +595,7 @@ enum NvmeAdminCommands {
     NVME_ADM_CMD_ACTIVATE_FW    = 0x10,
     NVME_ADM_CMD_DOWNLOAD_FW    = 0x11,
     NVME_ADM_CMD_NS_ATTACHMENT  = 0x15,
+    NVME_ADM_CMD_VIRT_MNGMT     = 0x1c,
     NVME_ADM_CMD_FORMAT_NVM     = 0x80,
     NVME_ADM_CMD_SECURITY_SEND  = 0x81,
     NVME_ADM_CMD_SECURITY_RECV  = 0x82,
@@ -899,6 +900,10 @@ enum NvmeStatusCodes {
     NVME_NS_PRIVATE             = 0x0119,
     NVME_NS_NOT_ATTACHED        = 0x011a,
     NVME_NS_CTRL_LIST_INVALID   = 0x011c,
+    NVME_INVALID_CTRL_ID        = 0x011f,
+    NVME_INVALID_SEC_CTRL_STATE = 0x0120,
+    NVME_INVALID_NUM_RESOURCES  = 0x0121,
+    NVME_INVALID_RESOURCE_ID    = 0x0122,
     NVME_CONFLICTING_ATTRS      = 0x0180,
     NVME_INVALID_PROT_INFO      = 0x0181,
     NVME_WRITE_TO_RO            = 0x0182,
@@ -1033,6 +1038,8 @@ enum NvmeIdCns {
     NVME_ID_CNS_NS_PRESENT            = 0x11,
     NVME_ID_CNS_NS_ATTACHED_CTRL_LIST = 0x12,
     NVME_ID_CNS_CTRL_LIST             = 0x13,
+    NVME_ID_CNS_PRIMARY_CTRL_CAP      = 0x14,
+    NVME_ID_CNS_SECONDARY_CTRL_LIST   = 0x15,
     NVME_ID_CNS_CS_NS_PRESENT_LIST    = 0x1a,
     NVME_ID_CNS_CS_NS_PRESENT         = 0x1b,
     NVME_ID_CNS_IO_COMMAND_SET        = 0x1c,
@@ -1553,6 +1560,61 @@ typedef enum NvmeZoneState {
     NVME_ZONE_STATE_OFFLINE          = 0x0f,
 } NvmeZoneState;
 
+typedef struct QEMU_PACKED NvmePriCtrlCap {
+    uint16_t    cntlid;
+    uint16_t    portid;
+    uint8_t     crt;
+    uint8_t     rsvd5[27];
+    uint32_t    vqfrt;
+    uint32_t    vqrfa;
+    uint16_t    vqrfap;
+    uint16_t    vqprt;
+    uint16_t    vqfrsm;
+    uint16_t    vqgran;
+    uint8_t     rsvd48[16];
+    uint32_t    vifrt;
+    uint32_t    virfa;
+    uint16_t    virfap;
+    uint16_t    viprt;
+    uint16_t    vifrsm;
+    uint16_t    vigran;
+    uint8_t     rsvd80[4016];
+} NvmePriCtrlCap;
+
+typedef enum NvmePriCtrlCapCrt {
+    NVME_CRT_VQ             = 1 << 0,
+    NVME_CRT_VI             = 1 << 1,
+} NvmePriCtrlCapCrt;
+
+typedef struct QEMU_PACKED NvmeSecCtrlEntry {
+    uint16_t    scid;
+    uint16_t    pcid;
+    uint8_t     scs;
+    uint8_t     rsvd5[3];
+    uint16_t    vfn;
+    uint16_t    nvq;
+    uint16_t    nvi;
+    uint8_t     rsvd14[18];
+} NvmeSecCtrlEntry;
+
+typedef struct QEMU_PACKED NvmeSecCtrlList {
+    uint8_t             numcntl;
+    uint8_t             rsvd1[31];
+    NvmeSecCtrlEntry    sec[127];
+} NvmeSecCtrlList;
+
+typedef enum NvmeVirtMngmtAction {
+    NVME_VIRT_MNGMT_ACTION_PRM_ALLOC    = 0x01,
+    NVME_VIRT_MNGMT_ACTION_SEC_OFFLINE  = 0x07,
+    NVME_VIRT_MNGMT_ACTION_SEC_ASSIGN   = 0x08,
+    NVME_VIRT_MNGMT_ACTION_SEC_ONLINE   = 0x09,
+} NvmeVirtMngmtAction;
+
+typedef enum NvmeVirtualResourceType {
+    NVME_VIRT_RES_QUEUE         = 0x00,
+    NVME_VIRT_RES_INTERRUPT     = 0x01,
+} NvmeVirtualResourceType;
+
 static inline void _nvme_check_size(void)
 {
     QEMU_BUILD_BUG_ON(sizeof(NvmeBar) != 4096);
@@ -1588,5 +1650,8 @@ static inline void _nvme_check_size(void)
     QEMU_BUILD_BUG_ON(sizeof(NvmeIdNsDescr) != 4);
     QEMU_BUILD_BUG_ON(sizeof(NvmeZoneDescr) != 64);
     QEMU_BUILD_BUG_ON(sizeof(NvmeDifTuple) != 16);
+    QEMU_BUILD_BUG_ON(sizeof(NvmePriCtrlCap) != 4096);
+    QEMU_BUILD_BUG_ON(sizeof(NvmeSecCtrlEntry) != 32);
+    QEMU_BUILD_BUG_ON(sizeof(NvmeSecCtrlList) != 4096);
 }
 #endif
diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h
index 4b9be09274..1398befc10 100644
--- a/include/hw/i2c/aspeed_i2c.h
+++ b/include/hw/i2c/aspeed_i2c.h
@@ -23,16 +23,196 @@
 
 #include "hw/i2c/i2c.h"
 #include "hw/sysbus.h"
+#include "hw/registerfields.h"
 #include "qom/object.h"
 
 #define TYPE_ASPEED_I2C "aspeed.i2c"
 #define TYPE_ASPEED_2400_I2C TYPE_ASPEED_I2C "-ast2400"
 #define TYPE_ASPEED_2500_I2C TYPE_ASPEED_I2C "-ast2500"
 #define TYPE_ASPEED_2600_I2C TYPE_ASPEED_I2C "-ast2600"
+#define TYPE_ASPEED_1030_I2C TYPE_ASPEED_I2C "-ast1030"
 OBJECT_DECLARE_TYPE(AspeedI2CState, AspeedI2CClass, ASPEED_I2C)
 
 #define ASPEED_I2C_NR_BUSSES 16
 #define ASPEED_I2C_MAX_POOL_SIZE 0x800
+#define ASPEED_I2C_OLD_NUM_REG 11
+#define ASPEED_I2C_NEW_NUM_REG 22
+
+/* Tx State Machine */
+#define   I2CD_TX_STATE_MASK                  0xf
+#define     I2CD_IDLE                         0x0
+#define     I2CD_MACTIVE                      0x8
+#define     I2CD_MSTART                       0x9
+#define     I2CD_MSTARTR                      0xa
+#define     I2CD_MSTOP                        0xb
+#define     I2CD_MTXD                         0xc
+#define     I2CD_MRXACK                       0xd
+#define     I2CD_MRXD                         0xe
+#define     I2CD_MTXACK                       0xf
+#define     I2CD_SWAIT                        0x1
+#define     I2CD_SRXD                         0x4
+#define     I2CD_STXACK                       0x5
+#define     I2CD_STXD                         0x6
+#define     I2CD_SRXACK                       0x7
+#define     I2CD_RECOVER                      0x3
+
+/* I2C Global Register */
+REG32(I2C_CTRL_STATUS, 0x0) /* Device Interrupt Status */
+REG32(I2C_CTRL_ASSIGN, 0x8) /* Device Interrupt Target Assignment */
+REG32(I2C_CTRL_GLOBAL, 0xC) /* Global Control Register */
+    FIELD(I2C_CTRL_GLOBAL, REG_MODE, 2, 1)
+    FIELD(I2C_CTRL_GLOBAL, SRAM_EN, 0, 1)
+REG32(I2C_CTRL_NEW_CLK_DIVIDER, 0x10) /* New mode clock divider */
+
+/* I2C Old Mode Device (Bus) Register */
+REG32(I2CD_FUN_CTRL, 0x0) /* I2CD Function Control  */
+    FIELD(I2CD_FUN_CTRL, POOL_PAGE_SEL, 20, 3) /* AST2400 */
+    SHARED_FIELD(M_SDA_LOCK_EN, 16, 1)
+    SHARED_FIELD(MULTI_MASTER_DIS, 15, 1)
+    SHARED_FIELD(M_SCL_DRIVE_EN, 14, 1)
+    SHARED_FIELD(MSB_STS, 9, 1)
+    SHARED_FIELD(SDA_DRIVE_IT_EN, 8, 1)
+    SHARED_FIELD(M_SDA_DRIVE_IT_EN, 7, 1)
+    SHARED_FIELD(M_HIGH_SPEED_EN, 6, 1)
+    SHARED_FIELD(DEF_ADDR_EN, 5, 1)
+    SHARED_FIELD(DEF_ALERT_EN, 4, 1)
+    SHARED_FIELD(DEF_ARP_EN, 3, 1)
+    SHARED_FIELD(DEF_GCALL_EN, 2, 1)
+    SHARED_FIELD(SLAVE_EN, 1, 1)
+    SHARED_FIELD(MASTER_EN, 0, 1)
+REG32(I2CD_AC_TIMING1, 0x04) /* Clock and AC Timing Control #1 */
+REG32(I2CD_AC_TIMING2, 0x08) /* Clock and AC Timing Control #2 */
+REG32(I2CD_INTR_CTRL, 0x0C)  /* I2CD Interrupt Control */
+REG32(I2CD_INTR_STS, 0x10)   /* I2CD Interrupt Status */
+    SHARED_FIELD(SLAVE_ADDR_MATCH, 31, 1)    /* 0: addr1 1: addr2 */
+    SHARED_FIELD(SLAVE_ADDR_RX_PENDING, 29, 1)
+    SHARED_FIELD(SLAVE_INACTIVE_TIMEOUT, 15, 1)
+    SHARED_FIELD(SDA_DL_TIMEOUT, 14, 1)
+    SHARED_FIELD(BUS_RECOVER_DONE, 13, 1)
+    SHARED_FIELD(SMBUS_ALERT, 12, 1)                    /* Bus [0-3] only */
+    FIELD(I2CD_INTR_STS, SMBUS_ARP_ADDR, 11, 1)         /* Removed */
+    FIELD(I2CD_INTR_STS, SMBUS_DEV_ALERT_ADDR, 10, 1)   /* Removed */
+    FIELD(I2CD_INTR_STS, SMBUS_DEF_ADDR, 9, 1)          /* Removed */
+    FIELD(I2CD_INTR_STS, GCALL_ADDR, 8, 1)              /* Removed */
+    FIELD(I2CD_INTR_STS, SLAVE_ADDR_RX_MATCH, 7, 1)     /* use RX_DONE */
+    SHARED_FIELD(SCL_TIMEOUT, 6, 1)
+    SHARED_FIELD(ABNORMAL, 5, 1)
+    SHARED_FIELD(NORMAL_STOP, 4, 1)
+    SHARED_FIELD(ARBIT_LOSS, 3, 1)
+    SHARED_FIELD(RX_DONE, 2, 1)
+    SHARED_FIELD(TX_NAK, 1, 1)
+    SHARED_FIELD(TX_ACK, 0, 1)
+REG32(I2CD_CMD, 0x14) /* I2CD Command/Status */
+    SHARED_FIELD(SDA_OE, 28, 1)
+    SHARED_FIELD(SDA_O, 27, 1)
+    SHARED_FIELD(SCL_OE, 26, 1)
+    SHARED_FIELD(SCL_O, 25, 1)
+    SHARED_FIELD(TX_TIMING, 23, 2)
+    SHARED_FIELD(TX_STATE, 19, 4)
+    SHARED_FIELD(SCL_LINE_STS, 18, 1)
+    SHARED_FIELD(SDA_LINE_STS, 17, 1)
+    SHARED_FIELD(BUS_BUSY_STS, 16, 1)
+    SHARED_FIELD(SDA_OE_OUT_DIR, 15, 1)
+    SHARED_FIELD(SDA_O_OUT_DIR, 14, 1)
+    SHARED_FIELD(SCL_OE_OUT_DIR, 13, 1)
+    SHARED_FIELD(SCL_O_OUT_DIR, 12, 1)
+    SHARED_FIELD(BUS_RECOVER_CMD_EN, 11, 1)
+    SHARED_FIELD(S_ALT_EN, 10, 1)
+    /* Command Bits */
+    SHARED_FIELD(RX_DMA_EN, 9, 1)
+    SHARED_FIELD(TX_DMA_EN, 8, 1)
+    SHARED_FIELD(RX_BUFF_EN, 7, 1)
+    SHARED_FIELD(TX_BUFF_EN, 6, 1)
+    SHARED_FIELD(M_STOP_CMD, 5, 1)
+    SHARED_FIELD(M_S_RX_CMD_LAST, 4, 1)
+    SHARED_FIELD(M_RX_CMD, 3, 1)
+    SHARED_FIELD(S_TX_CMD, 2, 1)
+    SHARED_FIELD(M_TX_CMD, 1, 1)
+    SHARED_FIELD(M_START_CMD, 0, 1)
+REG32(I2CD_DEV_ADDR, 0x18) /* Slave Device Address */
+REG32(I2CD_POOL_CTRL, 0x1C) /* Pool Buffer Control */
+    SHARED_FIELD(RX_COUNT, 24, 5)
+    SHARED_FIELD(RX_SIZE, 16, 5)
+    SHARED_FIELD(TX_COUNT, 9, 5)
+    FIELD(I2CD_POOL_CTRL, OFFSET, 2, 6) /* AST2400 */
+REG32(I2CD_BYTE_BUF, 0x20) /* Transmit/Receive Byte Buffer */
+    SHARED_FIELD(RX_BUF, 8, 8)
+    SHARED_FIELD(TX_BUF, 0, 8)
+REG32(I2CD_DMA_ADDR, 0x24) /* DMA Buffer Address */
+REG32(I2CD_DMA_LEN, 0x28) /* DMA Transfer Length < 4KB */
+
+/* I2C New Mode Device (Bus) Register */
+REG32(I2CC_FUN_CTRL, 0x0)
+    FIELD(I2CC_FUN_CTRL, RB_EARLY_DONE_EN, 22, 1)
+    FIELD(I2CC_FUN_CTRL, DMA_DIS_AUTO_RECOVER, 21, 1)
+    FIELD(I2CC_FUN_CTRL, S_SAVE_ADDR, 20, 1)
+    FIELD(I2CC_FUN_CTRL, M_PKT_RETRY_CNT, 18, 2)
+    /* 17:0 shared with I2CD_FUN_CTRL[17:0] */
+REG32(I2CC_AC_TIMING, 0x04)
+REG32(I2CC_MS_TXRX_BYTE_BUF, 0x08)
+    /* 31:16 shared with I2CD_CMD[31:16] */
+    /* 15:0  shared with I2CD_BYTE_BUF[15:0] */
+REG32(I2CC_POOL_CTRL, 0x0c)
+    /* 31:0 shared with I2CD_POOL_CTRL[31:0] */
+REG32(I2CM_INTR_CTRL, 0x10)
+REG32(I2CM_INTR_STS, 0x14)
+    FIELD(I2CM_INTR_STS, PKT_STATE, 28, 4)
+    FIELD(I2CM_INTR_STS, PKT_CMD_TIMEOUT, 18, 1)
+    FIELD(I2CM_INTR_STS, PKT_CMD_FAIL, 17, 1)
+    FIELD(I2CM_INTR_STS, PKT_CMD_DONE, 16, 1)
+    FIELD(I2CM_INTR_STS, BUS_RECOVER_FAIL, 15, 1)
+    /* 14:0 shared with I2CD_INTR_STS[14:0] */
+REG32(I2CM_CMD, 0x18)
+    FIELD(I2CM_CMD, W1_CTRL, 31, 1)
+    FIELD(I2CM_CMD, PKT_DEV_ADDR, 24, 7)
+    FIELD(I2CM_CMD, HS_MASTER_MODE_LSB, 17, 3)
+    FIELD(I2CM_CMD, PKT_OP_EN, 16, 1)
+    /* 15:0 shared with I2CD_CMD[15:0] */
+REG32(I2CM_DMA_LEN, 0x1c)
+    FIELD(I2CM_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
+    FIELD(I2CM_DMA_LEN, RX_BUF_LEN, 16, 11)
+    FIELD(I2CM_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
+    FIELD(I2CM_DMA_LEN, TX_BUF_LEN, 0, 11)
+REG32(I2CS_INTR_CTRL, 0x20)
+REG32(I2CS_INTR_STS, 0x24)
+    /* 31:29 shared with I2CD_INTR_STS[31:29] */
+    FIELD(I2CS_INTR_STS, SLAVE_PARKING_STS, 24, 2)
+    FIELD(I2CS_INTR_STS, SLAVE_ADDR3_NAK, 22, 1)
+    FIELD(I2CS_INTR_STS, SLAVE_ADDR2_NAK, 21, 1)
+    FIELD(I2CS_INTR_STS, SLAVE_ADDR1_NAK, 20, 1)
+    FIELD(I2CS_INTR_STS, SLAVE_ADDR_INDICATOR, 18, 2)
+    FIELD(I2CS_INTR_STS, PKT_CMD_FAIL, 17, 1)
+    FIELD(I2CS_INTR_STS, PKT_CMD_DONE, 16, 1)
+    /* 14:0 shared with I2CD_INTR_STS[14:0] */
+REG32(I2CS_CMD, 0x28)
+    FIELD(I2CS_CMD, W1_CTRL, 31, 1)
+    FIELD(I2CS_CMD, PKT_MODE_ACTIVE_ADDR, 17, 2)
+    FIELD(I2CS_CMD, PKT_MODE_EN, 16, 1)
+    FIELD(I2CS_CMD, AUTO_NAK_INACTIVE_ADDR, 15, 1)
+    FIELD(I2CS_CMD, AUTO_NAK_ACTIVE_ADDR, 14, 1)
+    /* 13:0 shared with I2CD_CMD[13:0] */
+REG32(I2CS_DMA_LEN, 0x2c)
+    FIELD(I2CS_DMA_LEN, RX_BUF_LEN_W1T, 31, 1)
+    FIELD(I2CS_DMA_LEN, RX_BUF_LEN, 16, 11)
+    FIELD(I2CS_DMA_LEN, TX_BUF_LEN_W1T, 15, 1)
+    FIELD(I2CS_DMA_LEN, TX_BUF_LEN, 0, 11)
+REG32(I2CM_DMA_TX_ADDR, 0x30)
+    FIELD(I2CM_DMA_TX_ADDR, ADDR, 0, 31)
+REG32(I2CM_DMA_RX_ADDR, 0x34)
+    FIELD(I2CM_DMA_RX_ADDR, ADDR, 0, 31)
+REG32(I2CS_DMA_TX_ADDR, 0x38)
+    FIELD(I2CS_DMA_TX_ADDR, ADDR, 0, 31)
+REG32(I2CS_DMA_RX_ADDR, 0x3c)
+    FIELD(I2CS_DMA_RX_ADDR, ADDR, 0, 31)
+REG32(I2CS_DEV_ADDR, 0x40)
+REG32(I2CM_DMA_LEN_STS, 0x48)
+    FIELD(I2CM_DMA_LEN_STS, RX_LEN, 16, 13)
+    FIELD(I2CM_DMA_LEN_STS, TX_LEN, 0, 13)
+REG32(I2CS_DMA_LEN_STS, 0x4c)
+    FIELD(I2CS_DMA_LEN_STS, RX_LEN, 16, 13)
+    FIELD(I2CS_DMA_LEN_STS, TX_LEN, 0, 13)
+REG32(I2CC_DMA_ADDR, 0x50)
+REG32(I2CC_DMA_LEN, 0x54)
 
 struct AspeedI2CState;
 
@@ -49,15 +229,7 @@ struct AspeedI2CBus {
     uint8_t id;
     qemu_irq irq;
 
-    uint32_t ctrl;
-    uint32_t timing[2];
-    uint32_t intr_ctrl;
-    uint32_t intr_status;
-    uint32_t cmd;
-    uint32_t buf;
-    uint32_t pool_ctrl;
-    uint32_t dma_addr;
-    uint32_t dma_len;
+    uint32_t regs[ASPEED_I2C_NEW_NUM_REG];
 };
 
 struct AspeedI2CState {
@@ -68,6 +240,7 @@ struct AspeedI2CState {
 
     uint32_t intr_status;
     uint32_t ctrl_global;
+    uint32_t new_clk_divider;
     MemoryRegion pool_iomem;
     uint8_t pool[ASPEED_I2C_MAX_POOL_SIZE];
 
@@ -93,6 +266,104 @@ struct AspeedI2CClass {
 
 };
 
+static inline bool aspeed_i2c_is_new_mode(AspeedI2CState *s)
+{
+    return FIELD_EX32(s->ctrl_global, I2C_CTRL_GLOBAL, REG_MODE);
+}
+
+static inline bool aspeed_i2c_bus_pkt_mode_en(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return ARRAY_FIELD_EX32(bus->regs, I2CM_CMD, PKT_OP_EN);
+    }
+    return false;
+}
+
+static inline uint32_t aspeed_i2c_bus_ctrl_offset(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return R_I2CC_FUN_CTRL;
+    }
+    return R_I2CD_FUN_CTRL;
+}
+
+static inline uint32_t aspeed_i2c_bus_cmd_offset(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return R_I2CM_CMD;
+    }
+    return R_I2CD_CMD;
+}
+
+static inline uint32_t aspeed_i2c_bus_dev_addr_offset(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return R_I2CS_DEV_ADDR;
+    }
+    return R_I2CD_DEV_ADDR;
+}
+
+static inline uint32_t aspeed_i2c_bus_intr_ctrl_offset(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return R_I2CM_INTR_CTRL;
+    }
+    return R_I2CD_INTR_CTRL;
+}
+
+static inline uint32_t aspeed_i2c_bus_intr_sts_offset(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return R_I2CM_INTR_STS;
+    }
+    return R_I2CD_INTR_STS;
+}
+
+static inline uint32_t aspeed_i2c_bus_pool_ctrl_offset(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return R_I2CC_POOL_CTRL;
+    }
+    return R_I2CD_POOL_CTRL;
+}
+
+static inline uint32_t aspeed_i2c_bus_byte_buf_offset(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return R_I2CC_MS_TXRX_BYTE_BUF;
+    }
+    return R_I2CD_BYTE_BUF;
+}
+
+static inline uint32_t aspeed_i2c_bus_dma_len_offset(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return R_I2CC_DMA_LEN;
+    }
+    return R_I2CD_DMA_LEN;
+}
+
+static inline uint32_t aspeed_i2c_bus_dma_addr_offset(AspeedI2CBus *bus)
+{
+    if (aspeed_i2c_is_new_mode(bus->controller)) {
+        return R_I2CC_DMA_ADDR;
+    }
+    return R_I2CD_DMA_ADDR;
+}
+
+static inline bool aspeed_i2c_bus_is_master(AspeedI2CBus *bus)
+{
+    return SHARED_ARRAY_FIELD_EX32(bus->regs, aspeed_i2c_bus_ctrl_offset(bus),
+                                   MASTER_EN);
+}
+
+static inline bool aspeed_i2c_bus_is_enabled(AspeedI2CBus *bus)
+{
+    uint32_t ctrl_reg = aspeed_i2c_bus_ctrl_offset(bus);
+    return SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, MASTER_EN) ||
+           SHARED_ARRAY_FIELD_EX32(bus->regs, ctrl_reg, SLAVE_EN);
+}
+
 I2CBus *aspeed_i2c_get_bus(AspeedI2CState *s, int busnr);
 
 #endif /* ASPEED_I2C_H */
diff --git a/include/hw/pci/pci_ids.h b/include/hw/pci/pci_ids.h
index 898083b86f..d5ddea558b 100644
--- a/include/hw/pci/pci_ids.h
+++ b/include/hw/pci/pci_ids.h
@@ -238,6 +238,7 @@
 #define PCI_DEVICE_ID_INTEL_82801BA_11   0x244e
 #define PCI_DEVICE_ID_INTEL_82801D       0x24CD
 #define PCI_DEVICE_ID_INTEL_ESB_9        0x25ab
+#define PCI_DEVICE_ID_INTEL_NVME         0x5845
 #define PCI_DEVICE_ID_INTEL_82371SB_0    0x7000
 #define PCI_DEVICE_ID_INTEL_82371SB_1    0x7010
 #define PCI_DEVICE_ID_INTEL_82371SB_2    0x7020
diff --git a/include/hw/registerfields.h b/include/hw/registerfields.h
index 3a88e135d0..1330ca77de 100644
--- a/include/hw/registerfields.h
+++ b/include/hw/registerfields.h
@@ -154,4 +154,74 @@
 #define ARRAY_FIELD_DP64(regs, reg, field, val)                           \
     (regs)[R_ ## reg] = FIELD_DP64((regs)[R_ ## reg], reg, field, val);
 
+
+/*
+ * These macros can be used for defining and extracting fields that have the
+ * same bit position across multiple registers.
+ */
+
+/* Define shared SHIFT, LENGTH, and MASK constants */
+#define SHARED_FIELD(name, shift, length)   \
+    enum { name ## _ ## SHIFT = (shift)};   \
+    enum { name ## _ ## LENGTH = (length)}; \
+    enum { name ## _ ## MASK = MAKE_64BIT_MASK(shift, length)};
+
+/* Extract a shared field */
+#define SHARED_FIELD_EX8(storage, field) \
+    extract8((storage), field ## _SHIFT, field ## _LENGTH)
+
+#define SHARED_FIELD_EX16(storage, field) \
+    extract16((storage), field ## _SHIFT, field ## _LENGTH)
+
+#define SHARED_FIELD_EX32(storage, field) \
+    extract32((storage), field ## _SHIFT, field ## _LENGTH)
+
+#define SHARED_FIELD_EX64(storage, field) \
+    extract64((storage), field ## _SHIFT, field ## _LENGTH)
+
+/* Extract a shared field from a register array */
+#define SHARED_ARRAY_FIELD_EX32(regs, offset, field) \
+    SHARED_FIELD_EX32((regs)[(offset)], field)
+#define SHARED_ARRAY_FIELD_EX64(regs, offset, field) \
+    SHARED_FIELD_EX64((regs)[(offset)], field)
+
+/* Deposit a shared field */
+#define SHARED_FIELD_DP8(storage, field, val) ({                        \
+    struct {                                                            \
+        unsigned int v:field ## _LENGTH;                                \
+    } _v = { .v = val };                                                \
+    uint8_t _d;                                                         \
+    _d = deposit32((storage), field ## _SHIFT, field ## _LENGTH, _v.v); \
+    _d; })
+
+#define SHARED_FIELD_DP16(storage, field, val) ({                       \
+    struct {                                                            \
+        unsigned int v:field ## _LENGTH;                                \
+    } _v = { .v = val };                                                \
+    uint16_t _d;                                                        \
+    _d = deposit32((storage), field ## _SHIFT, field ## _LENGTH, _v.v); \
+    _d; })
+
+#define SHARED_FIELD_DP32(storage, field, val) ({                       \
+    struct {                                                            \
+        unsigned int v:field ## _LENGTH;                                \
+    } _v = { .v = val };                                                \
+    uint32_t _d;                                                        \
+    _d = deposit32((storage), field ## _SHIFT, field ## _LENGTH, _v.v); \
+    _d; })
+
+#define SHARED_FIELD_DP64(storage, field, val) ({                       \
+    struct {                                                            \
+        uint64_t v:field ## _LENGTH;                                    \
+    } _v = { .v = val };                                                \
+    uint64_t _d;                                                        \
+    _d = deposit64((storage), field ## _SHIFT, field ## _LENGTH, _v.v); \
+    _d; })
+
+/* Deposit a shared field to a register array */
+#define SHARED_ARRAY_FIELD_DP32(regs, offset, field, val) \
+    (regs)[(offset)] = SHARED_FIELD_DP32((regs)[(offset)], field, val);
+#define SHARED_ARRAY_FIELD_DP64(regs, offset, field, val) \
+    (regs)[(offset)] = SHARED_FIELD_DP64((regs)[(offset)], field, val);
+
 #endif
diff --git a/include/io/channel-null.h b/include/io/channel-null.h
new file mode 100644
index 0000000000..f6d54e63cf
--- /dev/null
+++ b/include/io/channel-null.h
@@ -0,0 +1,55 @@
+/*
+ * QEMU I/O channels null driver
+ *
+ * Copyright (c) 2022 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef QIO_CHANNEL_FILE_H
+#define QIO_CHANNEL_FILE_H
+
+#include "io/channel.h"
+#include "qom/object.h"
+
+#define TYPE_QIO_CHANNEL_NULL "qio-channel-null"
+OBJECT_DECLARE_SIMPLE_TYPE(QIOChannelNull, QIO_CHANNEL_NULL)
+
+
+/**
+ * QIOChannelNull:
+ *
+ * The QIOChannelNull object provides a channel implementation
+ * that discards all writes and returns EOF for all reads.
+ */
+
+struct QIOChannelNull {
+    QIOChannel parent;
+    bool closed;
+};
+
+
+/**
+ * qio_channel_null_new:
+ *
+ * Create a new IO channel object that discards all writes
+ * and returns EOF for all reads.
+ *
+ * Returns: the new channel object
+ */
+QIOChannelNull *
+qio_channel_null_new(void);
+
+#endif /* QIO_CHANNEL_NULL_H */
diff --git a/include/qemu/host-utils.h b/include/qemu/host-utils.h
index f19bd29105..bc743f5e32 100644
--- a/include/qemu/host-utils.h
+++ b/include/qemu/host-utils.h
@@ -32,6 +32,7 @@
 
 #include "qemu/compiler.h"
 #include "qemu/bswap.h"
+#include "qemu/int128.h"
 
 #ifdef CONFIG_INT128
 static inline void mulu64(uint64_t *plow, uint64_t *phigh,
@@ -849,4 +850,6 @@ static inline uint64_t udiv_qrnnd(uint64_t *r, uint64_t n1,
 #endif
 }
 
+Int128 divu256(Int128 *plow, Int128 *phigh, Int128 divisor);
+Int128 divs256(Int128 *plow, Int128 *phigh, Int128 divisor);
 #endif
diff --git a/include/qemu/int128.h b/include/qemu/int128.h
index ef71f56e3f..d2b76ca6ac 100644
--- a/include/qemu/int128.h
+++ b/include/qemu/int128.h
@@ -128,11 +128,21 @@ static inline bool int128_ge(Int128 a, Int128 b)
     return a >= b;
 }
 
+static inline bool int128_uge(Int128 a, Int128 b)
+{
+    return ((__uint128_t)a) >= ((__uint128_t)b);
+}
+
 static inline bool int128_lt(Int128 a, Int128 b)
 {
     return a < b;
 }
 
+static inline bool int128_ult(Int128 a, Int128 b)
+{
+    return (__uint128_t)a < (__uint128_t)b;
+}
+
 static inline bool int128_le(Int128 a, Int128 b)
 {
     return a <= b;
@@ -177,6 +187,15 @@ static inline Int128 bswap128(Int128 a)
 #endif
 }
 
+static inline int clz128(Int128 a)
+{
+    if (a >> 64) {
+        return __builtin_clzll(a >> 64);
+    } else {
+        return (a) ? __builtin_clzll((uint64_t)a) + 64 : 128;
+    }
+}
+
 static inline Int128 int128_divu(Int128 a, Int128 b)
 {
     return (__uint128_t)a / (__uint128_t)b;
@@ -373,11 +392,21 @@ static inline bool int128_ge(Int128 a, Int128 b)
     return a.hi > b.hi || (a.hi == b.hi && a.lo >= b.lo);
 }
 
+static inline bool int128_uge(Int128 a, Int128 b)
+{
+    return (uint64_t)a.hi > (uint64_t)b.hi || (a.hi == b.hi && a.lo >= b.lo);
+}
+
 static inline bool int128_lt(Int128 a, Int128 b)
 {
     return !int128_ge(a, b);
 }
 
+static inline bool int128_ult(Int128 a, Int128 b)
+{
+    return !int128_uge(a, b);
+}
+
 static inline bool int128_le(Int128 a, Int128 b)
 {
     return int128_ge(b, a);
@@ -418,6 +447,15 @@ static inline Int128 bswap128(Int128 a)
     return int128_make128(bswap64(a.hi), bswap64(a.lo));
 }
 
+static inline int clz128(Int128 a)
+{
+    if (a.hi) {
+        return __builtin_clzll(a.hi);
+    } else {
+        return (a.lo) ? __builtin_clzll(a.lo) + 64 : 128;
+    }
+}
+
 Int128 int128_divu(Int128, Int128);
 Int128 int128_remu(Int128, Int128);
 Int128 int128_divs(Int128, Int128);