include/hw/s390x/s390-pci-bus.h - qemu - Git at Google

 /*
  * s390 PCI BUS definitions
  *
  * Copyright 2014 IBM Corp.
  * Author(s): Frank Blaschka <frank.blaschka@de.ibm.com>
  *            Hong Bo Li <lihbbj@cn.ibm.com>
  *            Yi Min Zhao <zyimin@cn.ibm.com>
  *
  * This work is licensed under the terms of the GNU GPL, version 2 or (at
  * your option) any later version. See the COPYING file in the top-level
  * directory.
  */

 #ifndef HW_S390_PCI_BUS_H
 #define HW_S390_PCI_BUS_H

 #include "hw/pci/pci.h"
 #include "hw/pci/pci_host.h"
 #include "hw/s390x/sclp.h"
 #include "hw/s390x/s390_flic.h"
 #include "hw/s390x/css.h"
 #include "hw/s390x/s390-pci-clp.h"
 #include "qom/object.h"

 #define TYPE_S390_PCI_HOST_BRIDGE "s390-pcihost"
 #define TYPE_S390_PCI_BUS "s390-pcibus"
 #define TYPE_S390_PCI_DEVICE "zpci"
 #define TYPE_S390_PCI_IOMMU "s390-pci-iommu"
 #define TYPE_S390_IOMMU_MEMORY_REGION "s390-iommu-memory-region"
 #define FH_MASK_ENABLE   0x80000000
 #define FH_MASK_INSTANCE 0x7f000000
 #define FH_MASK_SHM      0x00ff0000
 #define FH_MASK_INDEX    0x0000ffff
 #define FH_SHM_VFIO      0x00010000
 #define FH_SHM_EMUL      0x00020000
 #define ZPCI_MAX_FID 0xffffffff
 #define ZPCI_MAX_UID 0xffff
 #define UID_UNDEFINED 0
 #define UID_CHECKING_ENABLED 0x01
 #define ZPCI_DTSM 0x40

 OBJECT_DECLARE_SIMPLE_TYPE(S390pciState, S390_PCI_HOST_BRIDGE)
 OBJECT_DECLARE_SIMPLE_TYPE(S390PCIBus, S390_PCI_BUS)
 OBJECT_DECLARE_SIMPLE_TYPE(S390PCIBusDevice, S390_PCI_DEVICE)
 OBJECT_DECLARE_SIMPLE_TYPE(S390PCIIOMMU, S390_PCI_IOMMU)

 #define HP_EVENT_TO_CONFIGURED        0x0301
 #define HP_EVENT_RESERVED_TO_STANDBY  0x0302
 #define HP_EVENT_DECONFIGURE_REQUEST  0x0303
 #define HP_EVENT_CONFIGURED_TO_STBRES 0x0304
 #define HP_EVENT_STANDBY_TO_RESERVED  0x0308

 #define ERR_EVENT_INVALAS 0x1
 #define ERR_EVENT_OORANGE 0x2
 #define ERR_EVENT_INVALTF 0x3
 #define ERR_EVENT_TPROTE  0x4
 #define ERR_EVENT_APROTE  0x5
 #define ERR_EVENT_KEYE    0x6
 #define ERR_EVENT_INVALTE 0x7
 #define ERR_EVENT_INVALTL 0x8
 #define ERR_EVENT_TT      0x9
 #define ERR_EVENT_INVALMS 0xa
 #define ERR_EVENT_SERR    0xb
 #define ERR_EVENT_NOMSI   0x10
 #define ERR_EVENT_INVALBV 0x11
 #define ERR_EVENT_AIBV    0x12
 #define ERR_EVENT_AIRERR  0x13
 #define ERR_EVENT_FMBA    0x2a
 #define ERR_EVENT_FMBUP   0x2b
 #define ERR_EVENT_FMBPRO  0x2c
 #define ERR_EVENT_CCONF   0x30
 #define ERR_EVENT_SERVAC  0x3a
 #define ERR_EVENT_PERMERR 0x3b

 #define ERR_EVENT_Q_BIT 0x2
 #define ERR_EVENT_MVN_OFFSET 16

 #define ZPCI_MSI_VEC_BITS 11
 #define ZPCI_MSI_VEC_MASK 0x7ff

 #define ZPCI_MSI_ADDR  0xfe00000000000000ULL
 #define ZPCI_SDMA_ADDR 0x100000000ULL
 #define ZPCI_EDMA_ADDR 0x1ffffffffffffffULL

 #define PAGE_DEFAULT_ACC        0
 #define PAGE_DEFAULT_KEY        (PAGE_DEFAULT_ACC << 4)

 /* I/O Translation Anchor (IOTA) */
 enum ZpciIoatDtype {
     ZPCI_IOTA_STO = 0,
     ZPCI_IOTA_RTTO = 1,
     ZPCI_IOTA_RSTO = 2,
     ZPCI_IOTA_RFTO = 3,
     ZPCI_IOTA_PFAA = 4,
     ZPCI_IOTA_IOPFAA = 5,
     ZPCI_IOTA_IOPTO = 7
 };

 #define ZPCI_IOTA_IOT_ENABLED           0x800ULL
 #define ZPCI_IOTA_DT_ST                 (ZPCI_IOTA_STO  << 2)
 #define ZPCI_IOTA_DT_RT                 (ZPCI_IOTA_RTTO << 2)
 #define ZPCI_IOTA_DT_RS                 (ZPCI_IOTA_RSTO << 2)
 #define ZPCI_IOTA_DT_RF                 (ZPCI_IOTA_RFTO << 2)
 #define ZPCI_IOTA_DT_PF                 (ZPCI_IOTA_PFAA << 2)
 #define ZPCI_IOTA_FS_4K                 0
 #define ZPCI_IOTA_FS_1M                 1
 #define ZPCI_IOTA_FS_2G                 2
 #define ZPCI_KEY                        (PAGE_DEFAULT_KEY << 5)

 #define ZPCI_IOTA_STO_FLAG  (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_ST)
 #define ZPCI_IOTA_RTTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RT)
 #define ZPCI_IOTA_RSTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RS)
 #define ZPCI_IOTA_RFTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RF)
 #define ZPCI_IOTA_RFAA_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY |\
                              ZPCI_IOTA_DT_PF | ZPCI_IOTA_FS_2G)

 /* I/O Region and segment tables */
 #define ZPCI_INDEX_MASK         0x7ffULL

 #define ZPCI_TABLE_TYPE_MASK    0xc
 #define ZPCI_TABLE_TYPE_RFX     0xc
 #define ZPCI_TABLE_TYPE_RSX     0x8
 #define ZPCI_TABLE_TYPE_RTX     0x4
 #define ZPCI_TABLE_TYPE_SX      0x0

 #define ZPCI_TABLE_LEN_RFX      0x3
 #define ZPCI_TABLE_LEN_RSX      0x3
 #define ZPCI_TABLE_LEN_RTX      0x3

 #define ZPCI_TABLE_OFFSET_MASK  0xc0
 #define ZPCI_TABLE_SIZE         0x4000
 #define ZPCI_TABLE_ALIGN        ZPCI_TABLE_SIZE
 #define ZPCI_TABLE_ENTRY_SIZE   (sizeof(unsigned long))
 #define ZPCI_TABLE_ENTRIES      (ZPCI_TABLE_SIZE / ZPCI_TABLE_ENTRY_SIZE)

 #define ZPCI_TABLE_BITS         11
 #define ZPCI_PT_BITS            8
 #define ZPCI_ST_SHIFT           (ZPCI_PT_BITS + TARGET_PAGE_BITS)
 #define ZPCI_RT_SHIFT           (ZPCI_ST_SHIFT + ZPCI_TABLE_BITS)

 #define ZPCI_RTE_FLAG_MASK      0x3fffULL
 #define ZPCI_RTE_ADDR_MASK      (~ZPCI_RTE_FLAG_MASK)
 #define ZPCI_STE_FLAG_MASK      0x7ffULL
 #define ZPCI_STE_ADDR_MASK      (~ZPCI_STE_FLAG_MASK)

 #define ZPCI_SFAA_MASK          (~((1ULL << 20) - 1))

 /* I/O Page tables */
 #define ZPCI_PTE_VALID_MASK             0x400
 #define ZPCI_PTE_INVALID                0x400
 #define ZPCI_PTE_VALID                  0x000
 #define ZPCI_PT_SIZE                    0x800
 #define ZPCI_PT_ALIGN                   ZPCI_PT_SIZE
 #define ZPCI_PT_ENTRIES                 (ZPCI_PT_SIZE / ZPCI_TABLE_ENTRY_SIZE)
 #define ZPCI_PT_MASK                    (ZPCI_PT_ENTRIES - 1)

 #define ZPCI_PTE_FLAG_MASK              0xfffULL
 #define ZPCI_PTE_ADDR_MASK              (~ZPCI_PTE_FLAG_MASK)

 /* Shared bits */
 #define ZPCI_TABLE_VALID                0x00
 #define ZPCI_TABLE_INVALID              0x20
 #define ZPCI_TABLE_PROTECTED            0x200
 #define ZPCI_TABLE_UNPROTECTED          0x000
 #define ZPCI_TABLE_FC                   0x400

 #define ZPCI_TABLE_VALID_MASK           0x20
 #define ZPCI_TABLE_PROT_MASK            0x200

 #define ZPCI_ETT_RT 1
 #define ZPCI_ETT_ST 0
 #define ZPCI_ETT_PT -1

 /* PCI Function States
  *
  * reserved: default; device has just been plugged or is in progress of being
  *           unplugged
  * standby: device is present but not configured; transition from any
  *          configured state/to this state via sclp configure/deconfigure
  *
  * The following states make up the "configured" meta-state:
  * disabled: device is configured but not enabled; transition between this
  *           state and enabled via clp enable/disable
  * enbaled: device is ready for use; transition to disabled via clp disable;
  *          may enter an error state
  * blocked: ignore all DMA and interrupts; transition back to enabled or from
  *          error state via mpcifc
  * error: an error occurred; transition back to enabled via mpcifc
  * permanent error: an unrecoverable error occurred; transition to standby via
  *                  sclp deconfigure
  */
 typedef enum {
     ZPCI_FS_RESERVED,
     ZPCI_FS_STANDBY,
     ZPCI_FS_DISABLED,
     ZPCI_FS_ENABLED,
     ZPCI_FS_BLOCKED,
     ZPCI_FS_ERROR,
     ZPCI_FS_PERMANENT_ERROR,
 } ZpciState;

 typedef struct SeiContainer {
     QTAILQ_ENTRY(SeiContainer) link;
     uint32_t fid;
     uint32_t fh;
     uint8_t cc;
     uint16_t pec;
     uint64_t faddr;
     uint32_t e;
 } SeiContainer;

 typedef struct PciCcdfErr {
     uint32_t reserved1;
     uint32_t fh;
     uint32_t fid;
     uint32_t e;
     uint64_t faddr;
     uint32_t reserved3;
     uint16_t reserved4;
     uint16_t pec;
 } QEMU_PACKED PciCcdfErr;

 typedef struct PciCcdfAvail {
     uint32_t reserved1;
     uint32_t fh;
     uint32_t fid;
     uint32_t reserved2;
     uint32_t reserved3;
     uint32_t reserved4;
     uint32_t reserved5;
     uint16_t reserved6;
     uint16_t pec;
 } QEMU_PACKED PciCcdfAvail;

 typedef struct ChscSeiNt2Res {
     uint16_t length;
     uint16_t code;
     uint16_t reserved1;
     uint8_t reserved2;
     uint8_t nt;
     uint8_t flags;
     uint8_t reserved3;
     uint8_t reserved4;
     uint8_t cc;
     uint32_t reserved5[13];
     uint8_t ccdf[4016];
 } QEMU_PACKED ChscSeiNt2Res;

 typedef struct S390MsixInfo {
     uint8_t table_bar;
     uint8_t pba_bar;
     uint16_t entries;
     uint32_t table_offset;
     uint32_t pba_offset;
 } S390MsixInfo;

 typedef struct S390IOTLBEntry {
     uint64_t iova;
     uint64_t translated_addr;
     uint64_t len;
     uint64_t perm;
 } S390IOTLBEntry;

 typedef struct S390PCIDMACount {
     int id;
     int users;
     uint32_t avail;
     QTAILQ_ENTRY(S390PCIDMACount) link;
 } S390PCIDMACount;

 struct S390PCIIOMMU {
     Object parent_obj;
     S390PCIBusDevice *pbdev;
     AddressSpace as;
     MemoryRegion mr;
     IOMMUMemoryRegion iommu_mr;
     bool enabled;
     uint64_t g_iota;
     uint64_t pba;
     uint64_t pal;
     GHashTable *iotlb;
     S390PCIDMACount *dma_limit;
 };

 typedef struct S390PCIIOMMUTable {
     uint64_t key;
     S390PCIIOMMU *iommu[PCI_SLOT_MAX];
 } S390PCIIOMMUTable;

 /* Function Measurement Block */
 #define DEFAULT_MUI 4000
 #define UPDATE_U_BIT 0x1ULL
 #define FMBK_MASK 0xfULL

 typedef struct ZpciFmbFmt0 {
     uint64_t dma_rbytes;
     uint64_t dma_wbytes;
 } ZpciFmbFmt0;

 #define ZPCI_FMB_CNT_LD    0
 #define ZPCI_FMB_CNT_ST    1
 #define ZPCI_FMB_CNT_STB   2
 #define ZPCI_FMB_CNT_RPCIT 3
 #define ZPCI_FMB_CNT_MAX   4

 #define ZPCI_FMB_FORMAT    0

 typedef struct ZpciFmb {
     uint32_t format;
     uint32_t sample;
     uint64_t last_update;
     uint64_t counter[ZPCI_FMB_CNT_MAX];
     ZpciFmbFmt0 fmt0;
 } ZpciFmb;
 QEMU_BUILD_BUG_MSG(offsetof(ZpciFmb, fmt0) != 48, "padding in ZpciFmb");

 #define ZPCI_DEFAULT_FN_GRP 0xFF
 #define ZPCI_SIM_GRP_START 0xF0
 typedef struct S390PCIGroup {
     ClpRspQueryPciGrp zpci_group;
     int id;
     int host_id;
     QTAILQ_ENTRY(S390PCIGroup) link;
 } S390PCIGroup;
 S390PCIGroup *s390_group_create(int id, int host_id);
 S390PCIGroup *s390_group_find(int id);
 S390PCIGroup *s390_group_find_host_sim(int host_id);

 struct S390PCIBusDevice {
     DeviceState qdev;
     PCIDevice *pdev;
     ZpciState state;
     char *target;
     uint16_t uid;
     uint32_t idx;
     uint32_t fh;
     uint32_t fid;
     bool fid_defined;
     uint64_t fmb_addr;
     ZpciFmb fmb;
     QEMUTimer *fmb_timer;
     uint8_t isc;
     uint16_t noi;
     uint16_t maxstbl;
     uint8_t sum;
     S390PCIGroup *pci_group;
     ClpRspQueryPci zpci_fn;
     S390MsixInfo msix;
     AdapterRoutes routes;
     S390PCIIOMMU *iommu;
     MemoryRegion msix_notify_mr;
     IndAddr *summary_ind;
     IndAddr *indicator;
     bool pci_unplug_request_processed;
     bool unplug_requested;
     bool interp;
     bool forwarding_assist;
     QTAILQ_ENTRY(S390PCIBusDevice) link;
 };

 struct S390PCIBus {
     BusState qbus;
 };

 struct S390pciState {
     PCIHostState parent_obj;
     uint32_t next_idx;
     int bus_no;
     S390PCIBus *bus;
     GHashTable *iommu_table;
     GHashTable *zpci_table;
     QTAILQ_HEAD(, SeiContainer) pending_sei;
     QTAILQ_HEAD(, S390PCIBusDevice) zpci_devs;
     QTAILQ_HEAD(, S390PCIDMACount) zpci_dma_limit;
     QTAILQ_HEAD(, S390PCIGroup) zpci_groups;
     uint8_t next_sim_grp;
 };

 S390pciState *s390_get_phb(void);
 int pci_chsc_sei_nt2_get_event(void *res);
 int pci_chsc_sei_nt2_have_event(void);
 void s390_pci_sclp_configure(SCCB *sccb);
 void s390_pci_sclp_deconfigure(SCCB *sccb);
 void s390_pci_iommu_enable(S390PCIIOMMU *iommu);
 void s390_pci_iommu_disable(S390PCIIOMMU *iommu);
 void s390_pci_generate_error_event(uint16_t pec, uint32_t fh, uint32_t fid,
                                    uint64_t faddr, uint32_t e);
 uint16_t s390_guest_io_table_walk(uint64_t g_iota, hwaddr addr,
                                   S390IOTLBEntry *entry);
 S390PCIBusDevice *s390_pci_find_dev_by_idx(S390pciState *s, uint32_t idx);
 S390PCIBusDevice *s390_pci_find_dev_by_fh(S390pciState *s, uint32_t fh);
 S390PCIBusDevice *s390_pci_find_dev_by_fid(S390pciState *s, uint32_t fid);
 S390PCIBusDevice *s390_pci_find_dev_by_target(S390pciState *s,
                                               const char *target);
 S390PCIBusDevice *s390_pci_find_next_avail_dev(S390pciState *s,
                                                S390PCIBusDevice *pbdev);

 #endif
	/*
	* s390 PCI BUS definitions
	*
	* Copyright 2014 IBM Corp.
	* Author(s): Frank Blaschka <frank.blaschka@de.ibm.com>
	* Hong Bo Li <lihbbj@cn.ibm.com>
	* Yi Min Zhao <zyimin@cn.ibm.com>
	*
	* This work is licensed under the terms of the GNU GPL, version 2 or (at
	* your option) any later version. See the COPYING file in the top-level
	* directory.
	*/

	#ifndef HW_S390_PCI_BUS_H
	#define HW_S390_PCI_BUS_H

	#include "hw/pci/pci.h"
	#include "hw/pci/pci_host.h"
	#include "hw/s390x/sclp.h"
	#include "hw/s390x/s390_flic.h"
	#include "hw/s390x/css.h"
	#include "hw/s390x/s390-pci-clp.h"
	#include "qom/object.h"

	#define TYPE_S390_PCI_HOST_BRIDGE "s390-pcihost"
	#define TYPE_S390_PCI_BUS "s390-pcibus"
	#define TYPE_S390_PCI_DEVICE "zpci"
	#define TYPE_S390_PCI_IOMMU "s390-pci-iommu"
	#define TYPE_S390_IOMMU_MEMORY_REGION "s390-iommu-memory-region"
	#define FH_MASK_ENABLE 0x80000000
	#define FH_MASK_INSTANCE 0x7f000000
	#define FH_MASK_SHM 0x00ff0000
	#define FH_MASK_INDEX 0x0000ffff
	#define FH_SHM_VFIO 0x00010000
	#define FH_SHM_EMUL 0x00020000
	#define ZPCI_MAX_FID 0xffffffff
	#define ZPCI_MAX_UID 0xffff
	#define UID_UNDEFINED 0
	#define UID_CHECKING_ENABLED 0x01
	#define ZPCI_DTSM 0x40

	OBJECT_DECLARE_SIMPLE_TYPE(S390pciState, S390_PCI_HOST_BRIDGE)
	OBJECT_DECLARE_SIMPLE_TYPE(S390PCIBus, S390_PCI_BUS)
	OBJECT_DECLARE_SIMPLE_TYPE(S390PCIBusDevice, S390_PCI_DEVICE)
	OBJECT_DECLARE_SIMPLE_TYPE(S390PCIIOMMU, S390_PCI_IOMMU)

	#define HP_EVENT_TO_CONFIGURED 0x0301
	#define HP_EVENT_RESERVED_TO_STANDBY 0x0302
	#define HP_EVENT_DECONFIGURE_REQUEST 0x0303
	#define HP_EVENT_CONFIGURED_TO_STBRES 0x0304
	#define HP_EVENT_STANDBY_TO_RESERVED 0x0308

	#define ERR_EVENT_INVALAS 0x1
	#define ERR_EVENT_OORANGE 0x2
	#define ERR_EVENT_INVALTF 0x3
	#define ERR_EVENT_TPROTE 0x4
	#define ERR_EVENT_APROTE 0x5
	#define ERR_EVENT_KEYE 0x6
	#define ERR_EVENT_INVALTE 0x7
	#define ERR_EVENT_INVALTL 0x8
	#define ERR_EVENT_TT 0x9
	#define ERR_EVENT_INVALMS 0xa
	#define ERR_EVENT_SERR 0xb
	#define ERR_EVENT_NOMSI 0x10
	#define ERR_EVENT_INVALBV 0x11
	#define ERR_EVENT_AIBV 0x12
	#define ERR_EVENT_AIRERR 0x13
	#define ERR_EVENT_FMBA 0x2a
	#define ERR_EVENT_FMBUP 0x2b
	#define ERR_EVENT_FMBPRO 0x2c
	#define ERR_EVENT_CCONF 0x30
	#define ERR_EVENT_SERVAC 0x3a
	#define ERR_EVENT_PERMERR 0x3b

	#define ERR_EVENT_Q_BIT 0x2
	#define ERR_EVENT_MVN_OFFSET 16

	#define ZPCI_MSI_VEC_BITS 11
	#define ZPCI_MSI_VEC_MASK 0x7ff

	#define ZPCI_MSI_ADDR 0xfe00000000000000ULL
	#define ZPCI_SDMA_ADDR 0x100000000ULL
	#define ZPCI_EDMA_ADDR 0x1ffffffffffffffULL

	#define PAGE_DEFAULT_ACC 0
	#define PAGE_DEFAULT_KEY (PAGE_DEFAULT_ACC << 4)

	/* I/O Translation Anchor (IOTA) */
	enum ZpciIoatDtype {
	ZPCI_IOTA_STO = 0,
	ZPCI_IOTA_RTTO = 1,
	ZPCI_IOTA_RSTO = 2,
	ZPCI_IOTA_RFTO = 3,
	ZPCI_IOTA_PFAA = 4,
	ZPCI_IOTA_IOPFAA = 5,
	ZPCI_IOTA_IOPTO = 7
	};

	#define ZPCI_IOTA_IOT_ENABLED 0x800ULL
	#define ZPCI_IOTA_DT_ST (ZPCI_IOTA_STO << 2)
	#define ZPCI_IOTA_DT_RT (ZPCI_IOTA_RTTO << 2)
	#define ZPCI_IOTA_DT_RS (ZPCI_IOTA_RSTO << 2)
	#define ZPCI_IOTA_DT_RF (ZPCI_IOTA_RFTO << 2)
	#define ZPCI_IOTA_DT_PF (ZPCI_IOTA_PFAA << 2)
	#define ZPCI_IOTA_FS_4K 0
	#define ZPCI_IOTA_FS_1M 1
	#define ZPCI_IOTA_FS_2G 2
	#define ZPCI_KEY (PAGE_DEFAULT_KEY << 5)

	#define ZPCI_IOTA_STO_FLAG (ZPCI_IOTA_IOT_ENABLED \| ZPCI_KEY \| ZPCI_IOTA_DT_ST)
	#define ZPCI_IOTA_RTTO_FLAG (ZPCI_IOTA_IOT_ENABLED \| ZPCI_KEY \| ZPCI_IOTA_DT_RT)
	#define ZPCI_IOTA_RSTO_FLAG (ZPCI_IOTA_IOT_ENABLED \| ZPCI_KEY \| ZPCI_IOTA_DT_RS)
	#define ZPCI_IOTA_RFTO_FLAG (ZPCI_IOTA_IOT_ENABLED \| ZPCI_KEY \| ZPCI_IOTA_DT_RF)
	#define ZPCI_IOTA_RFAA_FLAG (ZPCI_IOTA_IOT_ENABLED \| ZPCI_KEY \|\
	ZPCI_IOTA_DT_PF \| ZPCI_IOTA_FS_2G)

	/* I/O Region and segment tables */
	#define ZPCI_INDEX_MASK 0x7ffULL

	#define ZPCI_TABLE_TYPE_MASK 0xc
	#define ZPCI_TABLE_TYPE_RFX 0xc
	#define ZPCI_TABLE_TYPE_RSX 0x8
	#define ZPCI_TABLE_TYPE_RTX 0x4
	#define ZPCI_TABLE_TYPE_SX 0x0

	#define ZPCI_TABLE_LEN_RFX 0x3
	#define ZPCI_TABLE_LEN_RSX 0x3
	#define ZPCI_TABLE_LEN_RTX 0x3

	#define ZPCI_TABLE_OFFSET_MASK 0xc0
	#define ZPCI_TABLE_SIZE 0x4000
	#define ZPCI_TABLE_ALIGN ZPCI_TABLE_SIZE
	#define ZPCI_TABLE_ENTRY_SIZE (sizeof(unsigned long))
	#define ZPCI_TABLE_ENTRIES (ZPCI_TABLE_SIZE / ZPCI_TABLE_ENTRY_SIZE)

	#define ZPCI_TABLE_BITS 11
	#define ZPCI_PT_BITS 8
	#define ZPCI_ST_SHIFT (ZPCI_PT_BITS + TARGET_PAGE_BITS)
	#define ZPCI_RT_SHIFT (ZPCI_ST_SHIFT + ZPCI_TABLE_BITS)

	#define ZPCI_RTE_FLAG_MASK 0x3fffULL
	#define ZPCI_RTE_ADDR_MASK (~ZPCI_RTE_FLAG_MASK)
	#define ZPCI_STE_FLAG_MASK 0x7ffULL
	#define ZPCI_STE_ADDR_MASK (~ZPCI_STE_FLAG_MASK)

	#define ZPCI_SFAA_MASK (~((1ULL << 20) - 1))

	/* I/O Page tables */
	#define ZPCI_PTE_VALID_MASK 0x400
	#define ZPCI_PTE_INVALID 0x400
	#define ZPCI_PTE_VALID 0x000
	#define ZPCI_PT_SIZE 0x800
	#define ZPCI_PT_ALIGN ZPCI_PT_SIZE
	#define ZPCI_PT_ENTRIES (ZPCI_PT_SIZE / ZPCI_TABLE_ENTRY_SIZE)
	#define ZPCI_PT_MASK (ZPCI_PT_ENTRIES - 1)

	#define ZPCI_PTE_FLAG_MASK 0xfffULL
	#define ZPCI_PTE_ADDR_MASK (~ZPCI_PTE_FLAG_MASK)

	/* Shared bits */
	#define ZPCI_TABLE_VALID 0x00
	#define ZPCI_TABLE_INVALID 0x20
	#define ZPCI_TABLE_PROTECTED 0x200
	#define ZPCI_TABLE_UNPROTECTED 0x000
	#define ZPCI_TABLE_FC 0x400

	#define ZPCI_TABLE_VALID_MASK 0x20
	#define ZPCI_TABLE_PROT_MASK 0x200

	#define ZPCI_ETT_RT 1
	#define ZPCI_ETT_ST 0
	#define ZPCI_ETT_PT -1

	/* PCI Function States
	*
	* reserved: default; device has just been plugged or is in progress of being
	* unplugged
	* standby: device is present but not configured; transition from any
	* configured state/to this state via sclp configure/deconfigure
	*
	* The following states make up the "configured" meta-state:
	* disabled: device is configured but not enabled; transition between this
	* state and enabled via clp enable/disable
	* enbaled: device is ready for use; transition to disabled via clp disable;
	* may enter an error state
	* blocked: ignore all DMA and interrupts; transition back to enabled or from
	* error state via mpcifc
	* error: an error occurred; transition back to enabled via mpcifc
	* permanent error: an unrecoverable error occurred; transition to standby via
	* sclp deconfigure
	*/
	typedef enum {
	ZPCI_FS_RESERVED,
	ZPCI_FS_STANDBY,
	ZPCI_FS_DISABLED,
	ZPCI_FS_ENABLED,
	ZPCI_FS_BLOCKED,
	ZPCI_FS_ERROR,
	ZPCI_FS_PERMANENT_ERROR,
	} ZpciState;

	typedef struct SeiContainer {
	QTAILQ_ENTRY(SeiContainer) link;
	uint32_t fid;
	uint32_t fh;
	uint8_t cc;
	uint16_t pec;
	uint64_t faddr;
	uint32_t e;
	} SeiContainer;

	typedef struct PciCcdfErr {
	uint32_t reserved1;
	uint32_t fh;
	uint32_t fid;
	uint32_t e;
	uint64_t faddr;
	uint32_t reserved3;
	uint16_t reserved4;
	uint16_t pec;
	} QEMU_PACKED PciCcdfErr;

	typedef struct PciCcdfAvail {
	uint32_t reserved1;
	uint32_t fh;
	uint32_t fid;
	uint32_t reserved2;
	uint32_t reserved3;
	uint32_t reserved4;
	uint32_t reserved5;
	uint16_t reserved6;
	uint16_t pec;
	} QEMU_PACKED PciCcdfAvail;

	typedef struct ChscSeiNt2Res {
	uint16_t length;
	uint16_t code;
	uint16_t reserved1;
	uint8_t reserved2;
	uint8_t nt;
	uint8_t flags;
	uint8_t reserved3;
	uint8_t reserved4;
	uint8_t cc;
	uint32_t reserved5[13];
	uint8_t ccdf[4016];
	} QEMU_PACKED ChscSeiNt2Res;

	typedef struct S390MsixInfo {
	uint8_t table_bar;
	uint8_t pba_bar;
	uint16_t entries;
	uint32_t table_offset;
	uint32_t pba_offset;
	} S390MsixInfo;

	typedef struct S390IOTLBEntry {
	uint64_t iova;
	uint64_t translated_addr;
	uint64_t len;
	uint64_t perm;
	} S390IOTLBEntry;

	typedef struct S390PCIDMACount {
	int id;
	int users;
	uint32_t avail;
	QTAILQ_ENTRY(S390PCIDMACount) link;
	} S390PCIDMACount;

	struct S390PCIIOMMU {
	Object parent_obj;
	S390PCIBusDevice *pbdev;
	AddressSpace as;
	MemoryRegion mr;
	IOMMUMemoryRegion iommu_mr;
	bool enabled;
	uint64_t g_iota;
	uint64_t pba;
	uint64_t pal;
	GHashTable *iotlb;
	S390PCIDMACount *dma_limit;
	};

	typedef struct S390PCIIOMMUTable {
	uint64_t key;
	S390PCIIOMMU *iommu[PCI_SLOT_MAX];
	} S390PCIIOMMUTable;

	/* Function Measurement Block */
	#define DEFAULT_MUI 4000
	#define UPDATE_U_BIT 0x1ULL
	#define FMBK_MASK 0xfULL

	typedef struct ZpciFmbFmt0 {
	uint64_t dma_rbytes;
	uint64_t dma_wbytes;
	} ZpciFmbFmt0;

	#define ZPCI_FMB_CNT_LD 0
	#define ZPCI_FMB_CNT_ST 1
	#define ZPCI_FMB_CNT_STB 2
	#define ZPCI_FMB_CNT_RPCIT 3
	#define ZPCI_FMB_CNT_MAX 4

	#define ZPCI_FMB_FORMAT 0

	typedef struct ZpciFmb {
	uint32_t format;
	uint32_t sample;
	uint64_t last_update;
	uint64_t counter[ZPCI_FMB_CNT_MAX];
	ZpciFmbFmt0 fmt0;
	} ZpciFmb;
	QEMU_BUILD_BUG_MSG(offsetof(ZpciFmb, fmt0) != 48, "padding in ZpciFmb");

	#define ZPCI_DEFAULT_FN_GRP 0xFF
	#define ZPCI_SIM_GRP_START 0xF0
	typedef struct S390PCIGroup {
	ClpRspQueryPciGrp zpci_group;
	int id;
	int host_id;
	QTAILQ_ENTRY(S390PCIGroup) link;
	} S390PCIGroup;
	S390PCIGroup *s390_group_create(int id, int host_id);
	S390PCIGroup *s390_group_find(int id);
	S390PCIGroup *s390_group_find_host_sim(int host_id);

	struct S390PCIBusDevice {
	DeviceState qdev;
	PCIDevice *pdev;
	ZpciState state;
	char *target;
	uint16_t uid;
	uint32_t idx;
	uint32_t fh;
	uint32_t fid;
	bool fid_defined;
	uint64_t fmb_addr;
	ZpciFmb fmb;
	QEMUTimer *fmb_timer;
	uint8_t isc;
	uint16_t noi;
	uint16_t maxstbl;
	uint8_t sum;
	S390PCIGroup *pci_group;
	ClpRspQueryPci zpci_fn;
	S390MsixInfo msix;
	AdapterRoutes routes;
	S390PCIIOMMU *iommu;
	MemoryRegion msix_notify_mr;
	IndAddr *summary_ind;
	IndAddr *indicator;
	bool pci_unplug_request_processed;
	bool unplug_requested;
	bool interp;
	bool forwarding_assist;
	QTAILQ_ENTRY(S390PCIBusDevice) link;
	};

	struct S390PCIBus {
	BusState qbus;
	};

	struct S390pciState {
	PCIHostState parent_obj;
	uint32_t next_idx;
	int bus_no;
	S390PCIBus *bus;
	GHashTable *iommu_table;
	GHashTable *zpci_table;
	QTAILQ_HEAD(, SeiContainer) pending_sei;
	QTAILQ_HEAD(, S390PCIBusDevice) zpci_devs;
	QTAILQ_HEAD(, S390PCIDMACount) zpci_dma_limit;
	QTAILQ_HEAD(, S390PCIGroup) zpci_groups;
	uint8_t next_sim_grp;
	};

	S390pciState *s390_get_phb(void);
	int pci_chsc_sei_nt2_get_event(void *res);
	int pci_chsc_sei_nt2_have_event(void);
	void s390_pci_sclp_configure(SCCB *sccb);
	void s390_pci_sclp_deconfigure(SCCB *sccb);
	void s390_pci_iommu_enable(S390PCIIOMMU *iommu);
	void s390_pci_iommu_disable(S390PCIIOMMU *iommu);
	void s390_pci_generate_error_event(uint16_t pec, uint32_t fh, uint32_t fid,
	uint64_t faddr, uint32_t e);
	uint16_t s390_guest_io_table_walk(uint64_t g_iota, hwaddr addr,
	S390IOTLBEntry *entry);
	S390PCIBusDevice s390_pci_find_dev_by_idx(S390pciState s, uint32_t idx);
	S390PCIBusDevice s390_pci_find_dev_by_fh(S390pciState s, uint32_t fh);
	S390PCIBusDevice s390_pci_find_dev_by_fid(S390pciState s, uint32_t fid);
	S390PCIBusDevice s390_pci_find_dev_by_target(S390pciState s,
	const char *target);
	S390PCIBusDevice s390_pci_find_next_avail_dev(S390pciState s,
	S390PCIBusDevice *pbdev);

	#endif