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-rw-r--r--hw/xen_pt.h302
1 files changed, 0 insertions, 302 deletions
diff --git a/hw/xen_pt.h b/hw/xen_pt.h
deleted file mode 100644
index 1cd9f44704..0000000000
--- a/hw/xen_pt.h
+++ /dev/null
@@ -1,302 +0,0 @@
-#ifndef XEN_PT_H
-#define XEN_PT_H
-
-#include "qemu-common.h"
-#include "hw/xen_common.h"
-#include "hw/pci/pci.h"
-#include "hw/xen-host-pci-device.h"
-
-void xen_pt_log(const PCIDevice *d, const char *f, ...) GCC_FMT_ATTR(2, 3);
-
-#define XEN_PT_ERR(d, _f, _a...) xen_pt_log(d, "%s: Error: "_f, __func__, ##_a)
-
-#ifdef XEN_PT_LOGGING_ENABLED
-# define XEN_PT_LOG(d, _f, _a...) xen_pt_log(d, "%s: " _f, __func__, ##_a)
-# define XEN_PT_WARN(d, _f, _a...) \
- xen_pt_log(d, "%s: Warning: "_f, __func__, ##_a)
-#else
-# define XEN_PT_LOG(d, _f, _a...)
-# define XEN_PT_WARN(d, _f, _a...)
-#endif
-
-#ifdef XEN_PT_DEBUG_PCI_CONFIG_ACCESS
-# define XEN_PT_LOG_CONFIG(d, addr, val, len) \
- xen_pt_log(d, "%s: address=0x%04x val=0x%08x len=%d\n", \
- __func__, addr, val, len)
-#else
-# define XEN_PT_LOG_CONFIG(d, addr, val, len)
-#endif
-
-
-/* Helper */
-#define XEN_PFN(x) ((x) >> XC_PAGE_SHIFT)
-
-typedef struct XenPTRegInfo XenPTRegInfo;
-typedef struct XenPTReg XenPTReg;
-
-typedef struct XenPCIPassthroughState XenPCIPassthroughState;
-
-/* function type for config reg */
-typedef int (*xen_pt_conf_reg_init)
- (XenPCIPassthroughState *, XenPTRegInfo *, uint32_t real_offset,
- uint32_t *data);
-typedef int (*xen_pt_conf_dword_write)
- (XenPCIPassthroughState *, XenPTReg *cfg_entry,
- uint32_t *val, uint32_t dev_value, uint32_t valid_mask);
-typedef int (*xen_pt_conf_word_write)
- (XenPCIPassthroughState *, XenPTReg *cfg_entry,
- uint16_t *val, uint16_t dev_value, uint16_t valid_mask);
-typedef int (*xen_pt_conf_byte_write)
- (XenPCIPassthroughState *, XenPTReg *cfg_entry,
- uint8_t *val, uint8_t dev_value, uint8_t valid_mask);
-typedef int (*xen_pt_conf_dword_read)
- (XenPCIPassthroughState *, XenPTReg *cfg_entry,
- uint32_t *val, uint32_t valid_mask);
-typedef int (*xen_pt_conf_word_read)
- (XenPCIPassthroughState *, XenPTReg *cfg_entry,
- uint16_t *val, uint16_t valid_mask);
-typedef int (*xen_pt_conf_byte_read)
- (XenPCIPassthroughState *, XenPTReg *cfg_entry,
- uint8_t *val, uint8_t valid_mask);
-
-#define XEN_PT_BAR_ALLF 0xFFFFFFFF
-#define XEN_PT_BAR_UNMAPPED (-1)
-
-#define PCI_CAP_MAX 48
-
-
-typedef enum {
- XEN_PT_GRP_TYPE_HARDWIRED = 0, /* 0 Hardwired reg group */
- XEN_PT_GRP_TYPE_EMU, /* emul reg group */
-} XenPTRegisterGroupType;
-
-typedef enum {
- XEN_PT_BAR_FLAG_MEM = 0, /* Memory type BAR */
- XEN_PT_BAR_FLAG_IO, /* I/O type BAR */
- XEN_PT_BAR_FLAG_UPPER, /* upper 64bit BAR */
- XEN_PT_BAR_FLAG_UNUSED, /* unused BAR */
-} XenPTBarFlag;
-
-
-typedef struct XenPTRegion {
- /* BAR flag */
- XenPTBarFlag bar_flag;
- /* Translation of the emulated address */
- union {
- uint64_t maddr;
- uint64_t pio_base;
- uint64_t u;
- } access;
-} XenPTRegion;
-
-/* XenPTRegInfo declaration
- * - only for emulated register (either a part or whole bit).
- * - for passthrough register that need special behavior (like interacting with
- * other component), set emu_mask to all 0 and specify r/w func properly.
- * - do NOT use ALL F for init_val, otherwise the tbl will not be registered.
- */
-
-/* emulated register information */
-struct XenPTRegInfo {
- uint32_t offset;
- uint32_t size;
- uint32_t init_val;
- /* reg read only field mask (ON:RO/ROS, OFF:other) */
- uint32_t ro_mask;
- /* reg emulate field mask (ON:emu, OFF:passthrough) */
- uint32_t emu_mask;
- /* no write back allowed */
- uint32_t no_wb;
- xen_pt_conf_reg_init init;
- /* read/write function pointer
- * for double_word/word/byte size */
- union {
- struct {
- xen_pt_conf_dword_write write;
- xen_pt_conf_dword_read read;
- } dw;
- struct {
- xen_pt_conf_word_write write;
- xen_pt_conf_word_read read;
- } w;
- struct {
- xen_pt_conf_byte_write write;
- xen_pt_conf_byte_read read;
- } b;
- } u;
-};
-
-/* emulated register management */
-struct XenPTReg {
- QLIST_ENTRY(XenPTReg) entries;
- XenPTRegInfo *reg;
- uint32_t data; /* emulated value */
-};
-
-typedef struct XenPTRegGroupInfo XenPTRegGroupInfo;
-
-/* emul reg group size initialize method */
-typedef int (*xen_pt_reg_size_init_fn)
- (XenPCIPassthroughState *, const XenPTRegGroupInfo *,
- uint32_t base_offset, uint8_t *size);
-
-/* emulated register group information */
-struct XenPTRegGroupInfo {
- uint8_t grp_id;
- XenPTRegisterGroupType grp_type;
- uint8_t grp_size;
- xen_pt_reg_size_init_fn size_init;
- XenPTRegInfo *emu_regs;
-};
-
-/* emul register group management table */
-typedef struct XenPTRegGroup {
- QLIST_ENTRY(XenPTRegGroup) entries;
- const XenPTRegGroupInfo *reg_grp;
- uint32_t base_offset;
- uint8_t size;
- QLIST_HEAD(, XenPTReg) reg_tbl_list;
-} XenPTRegGroup;
-
-
-#define XEN_PT_UNASSIGNED_PIRQ (-1)
-typedef struct XenPTMSI {
- uint16_t flags;
- uint32_t addr_lo; /* guest message address */
- uint32_t addr_hi; /* guest message upper address */
- uint16_t data; /* guest message data */
- uint32_t ctrl_offset; /* saved control offset */
- int pirq; /* guest pirq corresponding */
- bool initialized; /* when guest MSI is initialized */
- bool mapped; /* when pirq is mapped */
-} XenPTMSI;
-
-typedef struct XenPTMSIXEntry {
- int pirq;
- uint64_t addr;
- uint32_t data;
- uint32_t vector_ctrl;
- bool updated; /* indicate whether MSI ADDR or DATA is updated */
-} XenPTMSIXEntry;
-typedef struct XenPTMSIX {
- uint32_t ctrl_offset;
- bool enabled;
- int total_entries;
- int bar_index;
- uint64_t table_base;
- uint32_t table_offset_adjust; /* page align mmap */
- uint64_t mmio_base_addr;
- MemoryRegion mmio;
- void *phys_iomem_base;
- XenPTMSIXEntry msix_entry[0];
-} XenPTMSIX;
-
-struct XenPCIPassthroughState {
- PCIDevice dev;
-
- PCIHostDeviceAddress hostaddr;
- bool is_virtfn;
- XenHostPCIDevice real_device;
- XenPTRegion bases[PCI_NUM_REGIONS]; /* Access regions */
- QLIST_HEAD(, XenPTRegGroup) reg_grps;
-
- uint32_t machine_irq;
-
- XenPTMSI *msi;
- XenPTMSIX *msix;
-
- MemoryRegion bar[PCI_NUM_REGIONS - 1];
- MemoryRegion rom;
-
- MemoryListener memory_listener;
- MemoryListener io_listener;
-};
-
-int xen_pt_config_init(XenPCIPassthroughState *s);
-void xen_pt_config_delete(XenPCIPassthroughState *s);
-XenPTRegGroup *xen_pt_find_reg_grp(XenPCIPassthroughState *s, uint32_t address);
-XenPTReg *xen_pt_find_reg(XenPTRegGroup *reg_grp, uint32_t address);
-int xen_pt_bar_offset_to_index(uint32_t offset);
-
-static inline pcibus_t xen_pt_get_emul_size(XenPTBarFlag flag, pcibus_t r_size)
-{
- /* align resource size (memory type only) */
- if (flag == XEN_PT_BAR_FLAG_MEM) {
- return (r_size + XC_PAGE_SIZE - 1) & XC_PAGE_MASK;
- } else {
- return r_size;
- }
-}
-
-/* INTx */
-/* The PCI Local Bus Specification, Rev. 3.0,
- * Section 6.2.4 Miscellaneous Registers, pp 223
- * outlines 5 valid values for the interrupt pin (intx).
- * 0: For devices (or device functions) that don't use an interrupt in
- * 1: INTA#
- * 2: INTB#
- * 3: INTC#
- * 4: INTD#
- *
- * Xen uses the following 4 values for intx
- * 0: INTA#
- * 1: INTB#
- * 2: INTC#
- * 3: INTD#
- *
- * Observing that these list of values are not the same, xen_pt_pci_read_intx()
- * uses the following mapping from hw to xen values.
- * This seems to reflect the current usage within Xen.
- *
- * PCI hardware | Xen | Notes
- * ----------------+-----+----------------------------------------------------
- * 0 | 0 | No interrupt
- * 1 | 0 | INTA#
- * 2 | 1 | INTB#
- * 3 | 2 | INTC#
- * 4 | 3 | INTD#
- * any other value | 0 | This should never happen, log error message
- */
-
-static inline uint8_t xen_pt_pci_read_intx(XenPCIPassthroughState *s)
-{
- uint8_t v = 0;
- xen_host_pci_get_byte(&s->real_device, PCI_INTERRUPT_PIN, &v);
- return v;
-}
-
-static inline uint8_t xen_pt_pci_intx(XenPCIPassthroughState *s)
-{
- uint8_t r_val = xen_pt_pci_read_intx(s);
-
- XEN_PT_LOG(&s->dev, "intx=%i\n", r_val);
- if (r_val < 1 || r_val > 4) {
- XEN_PT_LOG(&s->dev, "Interrupt pin read from hardware is out of range:"
- " value=%i, acceptable range is 1 - 4\n", r_val);
- r_val = 0;
- } else {
- r_val -= 1;
- }
-
- return r_val;
-}
-
-/* MSI/MSI-X */
-int xen_pt_msi_set_enable(XenPCIPassthroughState *s, bool en);
-int xen_pt_msi_setup(XenPCIPassthroughState *s);
-int xen_pt_msi_update(XenPCIPassthroughState *d);
-void xen_pt_msi_disable(XenPCIPassthroughState *s);
-
-int xen_pt_msix_init(XenPCIPassthroughState *s, uint32_t base);
-void xen_pt_msix_delete(XenPCIPassthroughState *s);
-int xen_pt_msix_update(XenPCIPassthroughState *s);
-int xen_pt_msix_update_remap(XenPCIPassthroughState *s, int bar_index);
-void xen_pt_msix_disable(XenPCIPassthroughState *s);
-
-static inline bool xen_pt_has_msix_mapping(XenPCIPassthroughState *s, int bar)
-{
- return s->msix && s->msix->bar_index == bar;
-}
-
-
-#endif /* !XEN_PT_H */
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