[mirror_qemu.git] / include / hw / xen / xen_common.h

#ifndef QEMU_HW_XEN_COMMON_H
#define QEMU_HW_XEN_COMMON_H 1

#include "config-host.h"

#include <stddef.h>
#include <inttypes.h>

/*
 * If we have new enough libxenctrl then we do not want/need these compat
 * interfaces, despite what the user supplied cflags might say. They
 * must be undefined before including xenctrl.h
 */
#undef XC_WANT_COMPAT_EVTCHN_API
#undef XC_WANT_COMPAT_GNTTAB_API
#undef XC_WANT_COMPAT_MAP_FOREIGN_API

#include <xenctrl.h>
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420
#  include <xs.h>
#else
#  include <xenstore.h>
#endif
#include <xen/io/xenbus.h>

#include "hw/hw.h"
#include "hw/xen/xen.h"
#include "hw/pci/pci.h"
#include "qemu/queue.h"
#include "trace.h"

/*
 * We don't support Xen prior to 3.3.0.
 */

/* Xen before 4.0 */
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
static inline void *xc_map_foreign_bulk(int xc_handle, uint32_t dom, int prot,
                                        xen_pfn_t *arr, int *err,
                                        unsigned int num)
{
    return xc_map_foreign_batch(xc_handle, dom, prot, arr, num);
}
#endif


/* Xen before 4.1 */
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 410

typedef int XenXC;
typedef int xenevtchn_handle;
typedef int xengnttab_handle;
typedef int xenforeignmemory_handle;

#  define XC_INTERFACE_FMT "%i"
#  define XC_HANDLER_INITIAL_VALUE    -1

static inline xenevtchn_handle *xenevtchn_open(void *logger,
                                               unsigned int open_flags)
{
    xenevtchn_handle *h = malloc(sizeof(*h));
    if (!h) {
        return NULL;
    }
    *h = xc_evtchn_open();
    if (*h == -1) {
        free(h);
        h = NULL;
    }
    return h;
}
static inline int xenevtchn_close(xenevtchn_handle *h)
{
    int rc = xc_evtchn_close(*h);
    free(h);
    return rc;
}
#define xenevtchn_fd(h) xc_evtchn_fd(*h)
#define xenevtchn_pending(h) xc_evtchn_pending(*h)
#define xenevtchn_notify(h, p) xc_evtchn_notify(*h, p)
#define xenevtchn_bind_interdomain(h, d, p) xc_evtchn_bind_interdomain(*h, d, p)
#define xenevtchn_unmask(h, p) xc_evtchn_unmask(*h, p)
#define xenevtchn_unbind(h, p) xc_evtchn_unmask(*h, p)

static inline xengnttab_handle *xengnttab_open(void *logger,
                                               unsigned int open_flags)
{
    xengnttab_handle *h = malloc(sizeof(*h));
    if (!h) {
        return NULL;
    }
    *h = xc_gnttab_open();
    if (*h == -1) {
        free(h);
        h = NULL;
    }
    return h;
}
static inline int xengnttab_close(xengnttab_handle *h)
{
    int rc = xc_gnttab_close(*h);
    free(h);
    return rc;
}
#define xengnttab_set_max_grants(h, n) xc_gnttab_set_max_grants(*h, n)
#define xengnttab_map_grant_ref(h, d, r, p) xc_gnttab_map_grant_ref(*h, d, r, p)
#define xengnttab_map_grant_refs(h, c, d, r, p) \
    xc_gnttab_map_grant_refs(*h, c, d, r, p)
#define xengnttab_unmap(h, a, n) xc_gnttab_munmap(*h, a, n)

static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
                                          unsigned int open_flags)
{
    return xc_interface_open();
}

/* See below for xenforeignmemory_* APIs */

static inline int xc_domain_populate_physmap_exact
    (XenXC xc_handle, uint32_t domid, unsigned long nr_extents,
     unsigned int extent_order, unsigned int mem_flags, xen_pfn_t *extent_start)
{
    return xc_domain_memory_populate_physmap
        (xc_handle, domid, nr_extents, extent_order, mem_flags, extent_start);
}

static inline int xc_domain_add_to_physmap(int xc_handle, uint32_t domid,
                                           unsigned int space, unsigned long idx,
                                           xen_pfn_t gpfn)
{
    struct xen_add_to_physmap xatp = {
        .domid = domid,
        .space = space,
        .idx = idx,
        .gpfn = gpfn,
    };

    return xc_memory_op(xc_handle, XENMEM_add_to_physmap, &xatp);
}

static inline struct xs_handle *xs_open(unsigned long flags)
{
    return xs_daemon_open();
}

static inline void xs_close(struct xs_handle *xsh)
{
    if (xsh != NULL) {
        xs_daemon_close(xsh);
    }
}


/* Xen 4.1 thru 4.6 */
#elif CONFIG_XEN_CTRL_INTERFACE_VERSION < 471

typedef xc_interface *XenXC;
typedef xc_interface *xenforeignmemory_handle;
typedef xc_evtchn xenevtchn_handle;
typedef xc_gnttab xengnttab_handle;

#  define XC_INTERFACE_FMT "%p"
#  define XC_HANDLER_INITIAL_VALUE    NULL

#define xenevtchn_open(l, f) xc_evtchn_open(l, f);
#define xenevtchn_close(h) xc_evtchn_close(h)
#define xenevtchn_fd(h) xc_evtchn_fd(h)
#define xenevtchn_pending(h) xc_evtchn_pending(h)
#define xenevtchn_notify(h, p) xc_evtchn_notify(h, p)
#define xenevtchn_bind_interdomain(h, d, p) xc_evtchn_bind_interdomain(h, d, p)
#define xenevtchn_unmask(h, p) xc_evtchn_unmask(h, p)
#define xenevtchn_unbind(h, p) xc_evtchn_unbind(h, p)

#define xengnttab_open(l, f) xc_gnttab_open(l, f)
#define xengnttab_close(h) xc_gnttab_close(h)
#define xengnttab_set_max_grants(h, n) xc_gnttab_set_max_grants(h, n)
#define xengnttab_map_grant_ref(h, d, r, p) xc_gnttab_map_grant_ref(h, d, r, p)
#define xengnttab_unmap(h, a, n) xc_gnttab_munmap(h, a, n)
#define xengnttab_map_grant_refs(h, c, d, r, p) \
    xc_gnttab_map_grant_refs(h, c, d, r, p)

static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
                                          unsigned int open_flags)
{
    return xc_interface_open(logger, dombuild_logger, open_flags);
}

/* See below for xenforeignmemory_* APIs */

#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 471 */

typedef xc_interface *XenXC;

#  define XC_INTERFACE_FMT "%p"
#  define XC_HANDLER_INITIAL_VALUE    NULL

#include <xenevtchn.h>
#include <xengnttab.h>
#include <xenforeignmemory.h>

static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
                                          unsigned int open_flags)
{
    return xc_interface_open(logger, dombuild_logger, open_flags);
}
#endif

/* Xen before 4.2 */
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420
static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,
        uint64_t addr, uint32_t data)
{
    return -ENOSYS;
}
/* The followings are only to compile op_discard related code on older
 * Xen releases. */
#define BLKIF_OP_DISCARD 5
struct blkif_request_discard {
    uint64_t nr_sectors;
    uint64_t sector_number;
};
#else
static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,
        uint64_t addr, uint32_t data)
{
    return xc_hvm_inject_msi(xen_xc, dom, addr, data);
}
#endif

void destroy_hvm_domain(bool reboot);

/* shutdown/destroy current domain because of an error */
void xen_shutdown_fatal_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);

#ifdef HVM_PARAM_VMPORT_REGS_PFN
static inline int xen_get_vmport_regs_pfn(XenXC xc, domid_t dom,
                                          xen_pfn_t *vmport_regs_pfn)
{
    int rc;
    uint64_t value;
    rc = xc_hvm_param_get(xc, dom, HVM_PARAM_VMPORT_REGS_PFN, &value);
    if (rc >= 0) {
        *vmport_regs_pfn = (xen_pfn_t) value;
    }
    return rc;
}
#else
static inline int xen_get_vmport_regs_pfn(XenXC xc, domid_t dom,
                                          xen_pfn_t *vmport_regs_pfn)
{
    return -ENOSYS;
}
#endif

/* Xen before 4.6 */
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 460

#ifndef HVM_IOREQSRV_BUFIOREQ_ATOMIC
#define HVM_IOREQSRV_BUFIOREQ_ATOMIC 2
#endif

#endif

/* Xen before 4.5 */
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 450

#ifndef HVM_PARAM_BUFIOREQ_EVTCHN
#define HVM_PARAM_BUFIOREQ_EVTCHN 26
#endif

#define IOREQ_TYPE_PCI_CONFIG 2

typedef uint16_t ioservid_t;

static inline void xen_map_memory_section(XenXC xc, domid_t dom,
                                          ioservid_t ioservid,
                                          MemoryRegionSection *section)
{
}

static inline void xen_unmap_memory_section(XenXC xc, domid_t dom,
                                            ioservid_t ioservid,
                                            MemoryRegionSection *section)
{
}

static inline void xen_map_io_section(XenXC xc, domid_t dom,
                                      ioservid_t ioservid,
                                      MemoryRegionSection *section)
{
}

static inline void xen_unmap_io_section(XenXC xc, domid_t dom,
                                        ioservid_t ioservid,
                                        MemoryRegionSection *section)
{
}

static inline void xen_map_pcidev(XenXC xc, domid_t dom,
                                  ioservid_t ioservid,
                                  PCIDevice *pci_dev)
{
}

static inline void xen_unmap_pcidev(XenXC xc, domid_t dom,
                                    ioservid_t ioservid,
                                    PCIDevice *pci_dev)
{
}

static inline int xen_create_ioreq_server(XenXC xc, domid_t dom,
                                          ioservid_t *ioservid)
{
    return 0;
}

static inline void xen_destroy_ioreq_server(XenXC xc, domid_t dom,
                                            ioservid_t ioservid)
{
}

static inline int xen_get_ioreq_server_info(XenXC xc, domid_t dom,
                                            ioservid_t ioservid,
                                            xen_pfn_t *ioreq_pfn,
                                            xen_pfn_t *bufioreq_pfn,
                                            evtchn_port_t *bufioreq_evtchn)
{
    unsigned long param;
    int rc;

    rc = xc_get_hvm_param(xc, dom, HVM_PARAM_IOREQ_PFN, &param);
    if (rc < 0) {
        fprintf(stderr, "failed to get HVM_PARAM_IOREQ_PFN\n");
        return -1;
    }

    *ioreq_pfn = param;

    rc = xc_get_hvm_param(xc, dom, HVM_PARAM_BUFIOREQ_PFN, &param);
    if (rc < 0) {
        fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_PFN\n");
        return -1;
    }

    *bufioreq_pfn = param;

    rc = xc_get_hvm_param(xc, dom, HVM_PARAM_BUFIOREQ_EVTCHN,
                          &param);
    if (rc < 0) {
        fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_EVTCHN\n");
        return -1;
    }

    *bufioreq_evtchn = param;

    return 0;
}

static inline int xen_set_ioreq_server_state(XenXC xc, domid_t dom,
                                             ioservid_t ioservid,
                                             bool enable)
{
    return 0;
}

/* Xen 4.5 */
#else

static inline void xen_map_memory_section(XenXC xc, domid_t dom,
                                          ioservid_t ioservid,
                                          MemoryRegionSection *section)
{
    hwaddr start_addr = section->offset_within_address_space;
    ram_addr_t size = int128_get64(section->size);
    hwaddr end_addr = start_addr + size - 1;

    trace_xen_map_mmio_range(ioservid, start_addr, end_addr);
    xc_hvm_map_io_range_to_ioreq_server(xc, dom, ioservid, 1,
                                        start_addr, end_addr);
}

static inline void xen_unmap_memory_section(XenXC xc, domid_t dom,
                                            ioservid_t ioservid,
                                            MemoryRegionSection *section)
{
    hwaddr start_addr = section->offset_within_address_space;
    ram_addr_t size = int128_get64(section->size);
    hwaddr end_addr = start_addr + size - 1;

    trace_xen_unmap_mmio_range(ioservid, start_addr, end_addr);
    xc_hvm_unmap_io_range_from_ioreq_server(xc, dom, ioservid, 1,
                                            start_addr, end_addr);
}

static inline void xen_map_io_section(XenXC xc, domid_t dom,
                                      ioservid_t ioservid,
                                      MemoryRegionSection *section)
{
    hwaddr start_addr = section->offset_within_address_space;
    ram_addr_t size = int128_get64(section->size);
    hwaddr end_addr = start_addr + size - 1;

    trace_xen_map_portio_range(ioservid, start_addr, end_addr);
    xc_hvm_map_io_range_to_ioreq_server(xc, dom, ioservid, 0,
                                        start_addr, end_addr);
}

static inline void xen_unmap_io_section(XenXC xc, domid_t dom,
                                        ioservid_t ioservid,
                                        MemoryRegionSection *section)
{
    hwaddr start_addr = section->offset_within_address_space;
    ram_addr_t size = int128_get64(section->size);
    hwaddr end_addr = start_addr + size - 1;

    trace_xen_unmap_portio_range(ioservid, start_addr, end_addr);
    xc_hvm_unmap_io_range_from_ioreq_server(xc, dom, ioservid, 0,
                                            start_addr, end_addr);
}

static inline void xen_map_pcidev(XenXC xc, domid_t dom,
                                  ioservid_t ioservid,
                                  PCIDevice *pci_dev)
{
    trace_xen_map_pcidev(ioservid, pci_bus_num(pci_dev->bus),
                         PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
    xc_hvm_map_pcidev_to_ioreq_server(xc, dom, ioservid,
                                      0, pci_bus_num(pci_dev->bus),
                                      PCI_SLOT(pci_dev->devfn),
                                      PCI_FUNC(pci_dev->devfn));
}

static inline void xen_unmap_pcidev(XenXC xc, domid_t dom,
                                    ioservid_t ioservid,
                                    PCIDevice *pci_dev)
{
    trace_xen_unmap_pcidev(ioservid, pci_bus_num(pci_dev->bus),
                           PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
    xc_hvm_unmap_pcidev_from_ioreq_server(xc, dom, ioservid,
                                          0, pci_bus_num(pci_dev->bus),
                                          PCI_SLOT(pci_dev->devfn),
                                          PCI_FUNC(pci_dev->devfn));
}

static inline int xen_create_ioreq_server(XenXC xc, domid_t dom,
                                          ioservid_t *ioservid)
{
    int rc = xc_hvm_create_ioreq_server(xc, dom, HVM_IOREQSRV_BUFIOREQ_ATOMIC,
                                        ioservid);

    if (rc == 0) {
        trace_xen_ioreq_server_create(*ioservid);
    }

    return rc;
}

static inline void xen_destroy_ioreq_server(XenXC xc, domid_t dom,
                                            ioservid_t ioservid)
{
    trace_xen_ioreq_server_destroy(ioservid);
    xc_hvm_destroy_ioreq_server(xc, dom, ioservid);
}

static inline int xen_get_ioreq_server_info(XenXC xc, domid_t dom,
                                            ioservid_t ioservid,
                                            xen_pfn_t *ioreq_pfn,
                                            xen_pfn_t *bufioreq_pfn,
                                            evtchn_port_t *bufioreq_evtchn)
{
    return xc_hvm_get_ioreq_server_info(xc, dom, ioservid,
                                        ioreq_pfn, bufioreq_pfn,
                                        bufioreq_evtchn);
}

static inline int xen_set_ioreq_server_state(XenXC xc, domid_t dom,
                                             ioservid_t ioservid,
                                             bool enable)
{
    trace_xen_ioreq_server_state(ioservid, enable);
    return xc_hvm_set_ioreq_server_state(xc, dom, ioservid, enable);
}

#endif

#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 460
static inline int xen_xc_domain_add_to_physmap(XenXC xch, uint32_t domid,
                                               unsigned int space,
                                               unsigned long idx,
                                               xen_pfn_t gpfn)
{
    return xc_domain_add_to_physmap(xch, domid, space, idx, gpfn);
}
#else
static inline int xen_xc_domain_add_to_physmap(XenXC xch, uint32_t domid,
                                               unsigned int space,
                                               unsigned long idx,
                                               xen_pfn_t gpfn)
{
    /* In Xen 4.6 rc is -1 and errno contains the error value. */
    int rc = xc_domain_add_to_physmap(xch, domid, space, idx, gpfn);
    if (rc == -1)
        return errno;
    return rc;
}
#endif

#ifdef CONFIG_XEN_PV_DOMAIN_BUILD
#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 470
static inline int xen_domain_create(XenXC xc, uint32_t ssidref,
                                    xen_domain_handle_t handle, uint32_t flags,
                                    uint32_t *pdomid)
{
    return xc_domain_create(xc, ssidref, handle, flags, pdomid);
}
#else
static inline int xen_domain_create(XenXC xc, uint32_t ssidref,
                                    xen_domain_handle_t handle, uint32_t flags,
                                    uint32_t *pdomid)
{
    return xc_domain_create(xc, ssidref, handle, flags, pdomid, NULL);
}
#endif
#endif

#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 471

#define xenforeignmemory_open(l, f) &xen_xc

static inline void *xenforeignmemory_map(XenXC *h, uint32_t dom,
                                         int prot, size_t pages,
                                         const xen_pfn_t arr[/*pages*/],
                                         int err[/*pages*/])
{
    if (err)
        return xc_map_foreign_bulk(*h, dom, prot, arr, err, pages);
    else
        return xc_map_foreign_pages(*h, dom, prot, arr, pages);
}

#define xenforeignmemory_unmap(h, p, s) munmap(p, s * XC_PAGE_SIZE)

#endif

#endif /* QEMU_HW_XEN_COMMON_H */
Commit	Line	Data
d94f9486 AL	1	#ifndef QEMU_HW_XEN_COMMON_H
	2	#define QEMU_HW_XEN_COMMON_H 1
	3
d5b93ddf AP	4	#include "config-host.h"
d5b93ddf AP	5
d94f9486 AL	6	#include <stddef.h>
	7	#include <inttypes.h>
	8
5eeb39c2 IC	9	/*
	10	* If we have new enough libxenctrl then we do not want/need these compat
	11	* interfaces, despite what the user supplied cflags might say. They
	12	* must be undefined before including xenctrl.h
	13	*/
	14	#undef XC_WANT_COMPAT_EVTCHN_API
	15	#undef XC_WANT_COMPAT_GNTTAB_API
	16	#undef XC_WANT_COMPAT_MAP_FOREIGN_API
	17
d94f9486	18	#include <xenctrl.h>
e108a3c1 AP	19	#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420
	20	# include <xs.h>
	21	#else
	22	# include <xenstore.h>
	23	#endif
d94f9486 AL	24	#include <xen/io/xenbus.h>
d94f9486 AL	25
83c9f4ca	26	#include "hw/hw.h"
0d09e41a	27	#include "hw/xen/xen.h"
3996e85c	28	#include "hw/pci/pci.h"
1de7afc9	29	#include "qemu/queue.h"
3996e85c	30	#include "trace.h"
d94f9486 AL	31
d94f9486 AL	32	/*
d5b93ddf	33	* We don't support Xen prior to 3.3.0.
d94f9486	34	*/
d5b93ddf AP	35
	36	/* Xen before 4.0 */
	37	#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
	38	static inline void *xc_map_foreign_bulk(int xc_handle, uint32_t dom, int prot,
	39	xen_pfn_t arr, int err,
	40	unsigned int num)
	41	{
	42	return xc_map_foreign_batch(xc_handle, dom, prot, arr, num);
	43	}
d94f9486	44	#endif
d5b93ddf AP	45
	46
	47	/* Xen before 4.1 */
	48	#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 410
	49
	50	typedef int XenXC;
a2db2a1e	51	typedef int xenevtchn_handle;
c1345a88	52	typedef int xengnttab_handle;
e0cb42ae	53	typedef int xenforeignmemory_handle;
d5b93ddf AP	54
	55	# define XC_INTERFACE_FMT "%i"
	56	# define XC_HANDLER_INITIAL_VALUE -1
	57
a2db2a1e IC	58	static inline xenevtchn_handle xenevtchn_open(void logger,
	59	unsigned int open_flags)
	60	{
	61	xenevtchn_handle h = malloc(sizeof(h));
	62	if (!h) {
	63	return NULL;
	64	}
	65	*h = xc_evtchn_open();
	66	if (*h == -1) {
	67	free(h);
	68	h = NULL;
	69	}
	70	return h;
	71	}
	72	static inline int xenevtchn_close(xenevtchn_handle *h)
d5b93ddf	73	{
a2db2a1e IC	74	int rc = xc_evtchn_close(*h);
	75	free(h);
	76	return rc;
d5b93ddf	77	}
a2db2a1e IC	78	#define xenevtchn_fd(h) xc_evtchn_fd(*h)
	79	#define xenevtchn_pending(h) xc_evtchn_pending(*h)
	80	#define xenevtchn_notify(h, p) xc_evtchn_notify(*h, p)
	81	#define xenevtchn_bind_interdomain(h, d, p) xc_evtchn_bind_interdomain(*h, d, p)
	82	#define xenevtchn_unmask(h, p) xc_evtchn_unmask(*h, p)
	83	#define xenevtchn_unbind(h, p) xc_evtchn_unmask(*h, p)
d5b93ddf	84
c1345a88 IC	85	static inline xengnttab_handle xengnttab_open(void logger,
c1345a88 IC	86	unsigned int open_flags)
d5b93ddf	87	{
c1345a88 IC	88	xengnttab_handle h = malloc(sizeof(h));
	89	if (!h) {
	90	return NULL;
	91	}
	92	*h = xc_gnttab_open();
	93	if (*h == -1) {
	94	free(h);
	95	h = NULL;
	96	}
	97	return h;
d5b93ddf	98	}
c1345a88 IC	99	static inline int xengnttab_close(xengnttab_handle *h)
	100	{
	101	int rc = xc_gnttab_close(*h);
	102	free(h);
	103	return rc;
	104	}
	105	#define xengnttab_set_max_grants(h, n) xc_gnttab_set_max_grants(*h, n)
	106	#define xengnttab_map_grant_ref(h, d, r, p) xc_gnttab_map_grant_ref(*h, d, r, p)
	107	#define xengnttab_map_grant_refs(h, c, d, r, p) \
	108	xc_gnttab_map_grant_refs(*h, c, d, r, p)
	109	#define xengnttab_unmap(h, a, n) xc_gnttab_munmap(*h, a, n)
d5b93ddf AP	110
	111	static inline XenXC xen_xc_interface_open(void logger, void dombuild_logger,
	112	unsigned int open_flags)
	113	{
	114	return xc_interface_open();
	115	}
	116
e0cb42ae IC	117	/* See below for xenforeignmemory_* APIs */
e0cb42ae IC	118
432d268c JN	119	static inline int xc_domain_populate_physmap_exact
	120	(XenXC xc_handle, uint32_t domid, unsigned long nr_extents,
	121	unsigned int extent_order, unsigned int mem_flags, xen_pfn_t *extent_start)
	122	{
	123	return xc_domain_memory_populate_physmap
	124	(xc_handle, domid, nr_extents, extent_order, mem_flags, extent_start);
	125	}
	126
b87de24e AP	127	static inline int xc_domain_add_to_physmap(int xc_handle, uint32_t domid,
	128	unsigned int space, unsigned long idx,
	129	xen_pfn_t gpfn)
	130	{
	131	struct xen_add_to_physmap xatp = {
	132	.domid = domid,
	133	.space = space,
	134	.idx = idx,
	135	.gpfn = gpfn,
	136	};
	137
	138	return xc_memory_op(xc_handle, XENMEM_add_to_physmap, &xatp);
	139	}
	140
0f51726a SS	141	static inline struct xs_handle *xs_open(unsigned long flags)
	142	{
	143	return xs_daemon_open();
	144	}
	145
	146	static inline void xs_close(struct xs_handle *xsh)
	147	{
	148	if (xsh != NULL) {
	149	xs_daemon_close(xsh);
	150	}
	151	}
	152
432d268c	153
5eeb39c2 IC	154	/* Xen 4.1 thru 4.6 */
5eeb39c2 IC	155	#elif CONFIG_XEN_CTRL_INTERFACE_VERSION < 471
d5b93ddf AP	156
d5b93ddf AP	157	typedef xc_interface *XenXC;
e0cb42ae	158	typedef xc_interface *xenforeignmemory_handle;
a2db2a1e	159	typedef xc_evtchn xenevtchn_handle;
c1345a88	160	typedef xc_gnttab xengnttab_handle;
d5b93ddf AP	161
	162	# define XC_INTERFACE_FMT "%p"
	163	# define XC_HANDLER_INITIAL_VALUE NULL
	164
a2db2a1e IC	165	#define xenevtchn_open(l, f) xc_evtchn_open(l, f);
	166	#define xenevtchn_close(h) xc_evtchn_close(h)
	167	#define xenevtchn_fd(h) xc_evtchn_fd(h)
	168	#define xenevtchn_pending(h) xc_evtchn_pending(h)
	169	#define xenevtchn_notify(h, p) xc_evtchn_notify(h, p)
	170	#define xenevtchn_bind_interdomain(h, d, p) xc_evtchn_bind_interdomain(h, d, p)
	171	#define xenevtchn_unmask(h, p) xc_evtchn_unmask(h, p)
	172	#define xenevtchn_unbind(h, p) xc_evtchn_unbind(h, p)
d5b93ddf	173
c1345a88 IC	174	#define xengnttab_open(l, f) xc_gnttab_open(l, f)
	175	#define xengnttab_close(h) xc_gnttab_close(h)
	176	#define xengnttab_set_max_grants(h, n) xc_gnttab_set_max_grants(h, n)
	177	#define xengnttab_map_grant_ref(h, d, r, p) xc_gnttab_map_grant_ref(h, d, r, p)
	178	#define xengnttab_unmap(h, a, n) xc_gnttab_munmap(h, a, n)
	179	#define xengnttab_map_grant_refs(h, c, d, r, p) \
	180	xc_gnttab_map_grant_refs(h, c, d, r, p)
d5b93ddf AP	181
	182	static inline XenXC xen_xc_interface_open(void logger, void dombuild_logger,
	183	unsigned int open_flags)
	184	{
	185	return xc_interface_open(logger, dombuild_logger, open_flags);
	186	}
	187
e0cb42ae IC	188	/* See below for xenforeignmemory_* APIs */
e0cb42ae IC	189
5eeb39c2 IC	190	#else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 471 */
	191
	192	typedef xc_interface *XenXC;
	193
	194	# define XC_INTERFACE_FMT "%p"
	195	# define XC_HANDLER_INITIAL_VALUE NULL
	196
	197	#include <xenevtchn.h>
	198	#include <xengnttab.h>
	199	#include <xenforeignmemory.h>
	200
	201	static inline XenXC xen_xc_interface_open(void logger, void dombuild_logger,
	202	unsigned int open_flags)
	203	{
	204	return xc_interface_open(logger, dombuild_logger, open_flags);
	205	}
d94f9486 AL	206	#endif
d94f9486 AL	207
4c9f8d1b SS	208	/* Xen before 4.2 */
	209	#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420
	210	static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,
	211	uint64_t addr, uint32_t data)
	212	{
	213	return -ENOSYS;
	214	}
f3135204 OH	215	/* The followings are only to compile op_discard related code on older
	216	* Xen releases. */
	217	#define BLKIF_OP_DISCARD 5
	218	struct blkif_request_discard {
	219	uint64_t nr_sectors;
	220	uint64_t sector_number;
	221	};
4c9f8d1b SS	222	#else
	223	static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,
	224	uint64_t addr, uint32_t data)
	225	{
	226	return xc_hvm_inject_msi(xen_xc, dom, addr, data);
	227	}
	228	#endif
	229
180640ea	230	void destroy_hvm_domain(bool reboot);
9ce94e7c	231
eaab4d60 AK	232	/* shutdown/destroy current domain because of an error */
	233	void xen_shutdown_fatal_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
	234
37f9e258 DS	235	#ifdef HVM_PARAM_VMPORT_REGS_PFN
37f9e258 DS	236	static inline int xen_get_vmport_regs_pfn(XenXC xc, domid_t dom,
d01a5a3f	237	xen_pfn_t *vmport_regs_pfn)
37f9e258	238	{
d01a5a3f SS	239	int rc;
	240	uint64_t value;
	241	rc = xc_hvm_param_get(xc, dom, HVM_PARAM_VMPORT_REGS_PFN, &value);
	242	if (rc >= 0) {
	243	*vmport_regs_pfn = (xen_pfn_t) value;
	244	}
	245	return rc;
37f9e258 DS	246	}
	247	#else
	248	static inline int xen_get_vmport_regs_pfn(XenXC xc, domid_t dom,
d01a5a3f	249	xen_pfn_t *vmport_regs_pfn)
37f9e258 DS	250	{
	251	return -ENOSYS;
	252	}
	253	#endif
	254
d8b441a3 JB	255	/* Xen before 4.6 */
	256	#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 460
	257
	258	#ifndef HVM_IOREQSRV_BUFIOREQ_ATOMIC
	259	#define HVM_IOREQSRV_BUFIOREQ_ATOMIC 2
	260	#endif
	261
	262	#endif
	263
3996e85c PD	264	/* Xen before 4.5 */
	265	#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 450
	266
	267	#ifndef HVM_PARAM_BUFIOREQ_EVTCHN
	268	#define HVM_PARAM_BUFIOREQ_EVTCHN 26
	269	#endif
	270
	271	#define IOREQ_TYPE_PCI_CONFIG 2
	272
d09952ee	273	typedef uint16_t ioservid_t;
3996e85c PD	274
	275	static inline void xen_map_memory_section(XenXC xc, domid_t dom,
	276	ioservid_t ioservid,
	277	MemoryRegionSection *section)
	278	{
	279	}
	280
	281	static inline void xen_unmap_memory_section(XenXC xc, domid_t dom,
	282	ioservid_t ioservid,
	283	MemoryRegionSection *section)
	284	{
	285	}
	286
	287	static inline void xen_map_io_section(XenXC xc, domid_t dom,
	288	ioservid_t ioservid,
	289	MemoryRegionSection *section)
	290	{
	291	}
	292
	293	static inline void xen_unmap_io_section(XenXC xc, domid_t dom,
	294	ioservid_t ioservid,
	295	MemoryRegionSection *section)
	296	{
	297	}
	298
	299	static inline void xen_map_pcidev(XenXC xc, domid_t dom,
	300	ioservid_t ioservid,
	301	PCIDevice *pci_dev)
	302	{
	303	}
	304
	305	static inline void xen_unmap_pcidev(XenXC xc, domid_t dom,
	306	ioservid_t ioservid,
	307	PCIDevice *pci_dev)
	308	{
	309	}
	310
	311	static inline int xen_create_ioreq_server(XenXC xc, domid_t dom,
	312	ioservid_t *ioservid)
	313	{
	314	return 0;
	315	}
	316
	317	static inline void xen_destroy_ioreq_server(XenXC xc, domid_t dom,
	318	ioservid_t ioservid)
	319	{
	320	}
	321
	322	static inline int xen_get_ioreq_server_info(XenXC xc, domid_t dom,
	323	ioservid_t ioservid,
	324	xen_pfn_t *ioreq_pfn,
	325	xen_pfn_t *bufioreq_pfn,
	326	evtchn_port_t *bufioreq_evtchn)
	327	{
	328	unsigned long param;
	329	int rc;
	330
	331	rc = xc_get_hvm_param(xc, dom, HVM_PARAM_IOREQ_PFN, &param);
	332	if (rc < 0) {
	333	fprintf(stderr, "failed to get HVM_PARAM_IOREQ_PFN\n");
	334	return -1;
	335	}
	336
	337	*ioreq_pfn = param;
338
339	rc = xc_get_hvm_param(xc, dom, HVM_PARAM_BUFIOREQ_PFN, &param);
340	if (rc < 0) {
341	fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_PFN\n");
342	return -1;
343	}
344
345	*bufioreq_pfn = param;
346
347	rc = xc_get_hvm_param(xc, dom, HVM_PARAM_BUFIOREQ_EVTCHN,
348	&param);
349	if (rc < 0) {
350	fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_EVTCHN\n");
351	return -1;
352	}
353
354	*bufioreq_evtchn = param;
355
356	return 0;
357	}
358
359	static inline int xen_set_ioreq_server_state(XenXC xc, domid_t dom,
360	ioservid_t ioservid,
361	bool enable)
362	{
363	return 0;
364	}
365
366	/* Xen 4.5 */
367	#else
368
369	static inline void xen_map_memory_section(XenXC xc, domid_t dom,
370	ioservid_t ioservid,
371	MemoryRegionSection *section)
372	{
373	hwaddr start_addr = section->offset_within_address_space;
374	ram_addr_t size = int128_get64(section->size);
375	hwaddr end_addr = start_addr + size - 1;
376
377	trace_xen_map_mmio_range(ioservid, start_addr, end_addr);
378	xc_hvm_map_io_range_to_ioreq_server(xc, dom, ioservid, 1,
379	start_addr, end_addr);
380	}
381
382	static inline void xen_unmap_memory_section(XenXC xc, domid_t dom,
383	ioservid_t ioservid,
384	MemoryRegionSection *section)
385	{
386	hwaddr start_addr = section->offset_within_address_space;
387	ram_addr_t size = int128_get64(section->size);
388	hwaddr end_addr = start_addr + size - 1;
389
390	trace_xen_unmap_mmio_range(ioservid, start_addr, end_addr);
391	xc_hvm_unmap_io_range_from_ioreq_server(xc, dom, ioservid, 1,
392	start_addr, end_addr);
393	}
394
395	static inline void xen_map_io_section(XenXC xc, domid_t dom,
396	ioservid_t ioservid,
397	MemoryRegionSection *section)
398	{
399	hwaddr start_addr = section->offset_within_address_space;
400	ram_addr_t size = int128_get64(section->size);
401	hwaddr end_addr = start_addr + size - 1;
402
403	trace_xen_map_portio_range(ioservid, start_addr, end_addr);
404	xc_hvm_map_io_range_to_ioreq_server(xc, dom, ioservid, 0,
405	start_addr, end_addr);
406	}
407
408	static inline void xen_unmap_io_section(XenXC xc, domid_t dom,
409	ioservid_t ioservid,
410	MemoryRegionSection *section)
411	{
412	hwaddr start_addr = section->offset_within_address_space;
413	ram_addr_t size = int128_get64(section->size);
414	hwaddr end_addr = start_addr + size - 1;
415
416	trace_xen_unmap_portio_range(ioservid, start_addr, end_addr);
417	xc_hvm_unmap_io_range_from_ioreq_server(xc, dom, ioservid, 0,
418	start_addr, end_addr);
419	}
420
421	static inline void xen_map_pcidev(XenXC xc, domid_t dom,
422	ioservid_t ioservid,
423	PCIDevice *pci_dev)
424	{
425	trace_xen_map_pcidev(ioservid, pci_bus_num(pci_dev->bus),
426	PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
427	xc_hvm_map_pcidev_to_ioreq_server(xc, dom, ioservid,
428	0, pci_bus_num(pci_dev->bus),
429	PCI_SLOT(pci_dev->devfn),
430	PCI_FUNC(pci_dev->devfn));
431	}
432
433	static inline void xen_unmap_pcidev(XenXC xc, domid_t dom,
434	ioservid_t ioservid,
435	PCIDevice *pci_dev)
436	{
437	trace_xen_unmap_pcidev(ioservid, pci_bus_num(pci_dev->bus),
438	PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
439	xc_hvm_unmap_pcidev_from_ioreq_server(xc, dom, ioservid,
440	0, pci_bus_num(pci_dev->bus),
441	PCI_SLOT(pci_dev->devfn),
442	PCI_FUNC(pci_dev->devfn));
443	}
444
445	static inline int xen_create_ioreq_server(XenXC xc, domid_t dom,
446	ioservid_t *ioservid)
447	{
d8b441a3 JB	448	int rc = xc_hvm_create_ioreq_server(xc, dom, HVM_IOREQSRV_BUFIOREQ_ATOMIC,
d8b441a3 JB	449	ioservid);
3996e85c PD	450
	451	if (rc == 0) {
	452	trace_xen_ioreq_server_create(*ioservid);
	453	}
	454
	455	return rc;
	456	}
	457
	458	static inline void xen_destroy_ioreq_server(XenXC xc, domid_t dom,
	459	ioservid_t ioservid)
	460	{
	461	trace_xen_ioreq_server_destroy(ioservid);
	462	xc_hvm_destroy_ioreq_server(xc, dom, ioservid);
	463	}
	464
	465	static inline int xen_get_ioreq_server_info(XenXC xc, domid_t dom,
	466	ioservid_t ioservid,
	467	xen_pfn_t *ioreq_pfn,
	468	xen_pfn_t *bufioreq_pfn,
	469	evtchn_port_t *bufioreq_evtchn)
	470	{
	471	return xc_hvm_get_ioreq_server_info(xc, dom, ioservid,
	472	ioreq_pfn, bufioreq_pfn,
	473	bufioreq_evtchn);
	474	}
	475
	476	static inline int xen_set_ioreq_server_state(XenXC xc, domid_t dom,
	477	ioservid_t ioservid,
	478	bool enable)
	479	{
	480	trace_xen_ioreq_server_state(ioservid, enable);
	481	return xc_hvm_set_ioreq_server_state(xc, dom, ioservid, enable);
	482	}
	483
	484	#endif
	485
20a544c7 KRW	486	#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 460
	487	static inline int xen_xc_domain_add_to_physmap(XenXC xch, uint32_t domid,
	488	unsigned int space,
	489	unsigned long idx,
	490	xen_pfn_t gpfn)
	491	{
	492	return xc_domain_add_to_physmap(xch, domid, space, idx, gpfn);
	493	}
	494	#else
	495	static inline int xen_xc_domain_add_to_physmap(XenXC xch, uint32_t domid,
	496	unsigned int space,
	497	unsigned long idx,
	498	xen_pfn_t gpfn)
	499	{
	500	/* In Xen 4.6 rc is -1 and errno contains the error value. */
	501	int rc = xc_domain_add_to_physmap(xch, domid, space, idx, gpfn);
	502	if (rc == -1)
	503	return errno;
	504	return rc;
	505	}
	506	#endif
	507
64a7ad6f	508	#ifdef CONFIG_XEN_PV_DOMAIN_BUILD
cdadde39 RPM	509	#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 470
	510	static inline int xen_domain_create(XenXC xc, uint32_t ssidref,
	511	xen_domain_handle_t handle, uint32_t flags,
	512	uint32_t *pdomid)
	513	{
	514	return xc_domain_create(xc, ssidref, handle, flags, pdomid);
	515	}
	516	#else
	517	static inline int xen_domain_create(XenXC xc, uint32_t ssidref,
	518	xen_domain_handle_t handle, uint32_t flags,
	519	uint32_t *pdomid)
	520	{
	521	return xc_domain_create(xc, ssidref, handle, flags, pdomid, NULL);
	522	}
	523	#endif
64a7ad6f	524	#endif
cdadde39	525
e0cb42ae IC	526	#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 471
	527
	528	#define xenforeignmemory_open(l, f) &xen_xc
	529
	530	static inline void xenforeignmemory_map(XenXC h, uint32_t dom,
	531	int prot, size_t pages,
	532	const xen_pfn_t arr[/pages/],
	533	int err[/pages/])
	534	{
	535	if (err)
	536	return xc_map_foreign_bulk(*h, dom, prot, arr, err, pages);
	537	else
	538	return xc_map_foreign_pages(*h, dom, prot, arr, pages);
	539	}
	540
	541	#define xenforeignmemory_unmap(h, p, s) munmap(p, s * XC_PAGE_SIZE)
	542
	543	#endif
	544
d94f9486	545	#endif /* QEMU_HW_XEN_COMMON_H */