aboutsummaryrefslogtreecommitdiff
path: root/include/hw/xen
diff options
context:
space:
mode:
Diffstat (limited to 'include/hw/xen')
-rw-r--r--include/hw/xen/xen.h62
-rw-r--r--include/hw/xen/xen_backend.h109
-rw-r--r--include/hw/xen/xen_common.h160
3 files changed, 331 insertions, 0 deletions
diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h
new file mode 100644
index 0000000000..6235f91fe0
--- /dev/null
+++ b/include/hw/xen/xen.h
@@ -0,0 +1,62 @@
+#ifndef QEMU_HW_XEN_H
+#define QEMU_HW_XEN_H 1
+/*
+ * public xen header
+ * stuff needed outside xen-*.c, i.e. interfaces to qemu.
+ * must not depend on any xen headers being present in
+ * /usr/include/xen, so it can be included unconditionally.
+ */
+#include <inttypes.h>
+
+#include "hw/irq.h"
+#include "qemu-common.h"
+
+/* xen-machine.c */
+enum xen_mode {
+ XEN_EMULATE = 0, // xen emulation, using xenner (default)
+ XEN_CREATE, // create xen domain
+ XEN_ATTACH // attach to xen domain created by xend
+};
+
+extern uint32_t xen_domid;
+extern enum xen_mode xen_mode;
+
+extern bool xen_allowed;
+
+static inline bool xen_enabled(void)
+{
+#if defined(CONFIG_XEN_BACKEND) && !defined(CONFIG_NO_XEN)
+ return xen_allowed;
+#else
+ return 0;
+#endif
+}
+
+int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
+void xen_piix3_set_irq(void *opaque, int irq_num, int level);
+void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len);
+void xen_hvm_inject_msi(uint64_t addr, uint32_t data);
+void xen_cmos_set_s3_resume(void *opaque, int irq, int level);
+
+qemu_irq *xen_interrupt_controller_init(void);
+
+int xen_init(void);
+int xen_hvm_init(void);
+void xen_vcpu_init(void);
+void xenstore_store_pv_console_info(int i, struct CharDriverState *chr);
+
+#if defined(NEED_CPU_H) && !defined(CONFIG_USER_ONLY)
+struct MemoryRegion;
+void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
+ struct MemoryRegion *mr);
+void xen_modified_memory(ram_addr_t start, ram_addr_t length);
+#endif
+
+struct MemoryRegion;
+void xen_register_framebuffer(struct MemoryRegion *mr);
+
+#if defined(CONFIG_XEN) && CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
+# define HVM_MAX_VCPUS 32
+#endif
+
+#endif /* QEMU_HW_XEN_H */
diff --git a/include/hw/xen/xen_backend.h b/include/hw/xen/xen_backend.h
new file mode 100644
index 0000000000..3b7d96d7a5
--- /dev/null
+++ b/include/hw/xen/xen_backend.h
@@ -0,0 +1,109 @@
+#ifndef QEMU_HW_XEN_BACKEND_H
+#define QEMU_HW_XEN_BACKEND_H 1
+
+#include "hw/xen/xen_common.h"
+#include "sysemu/sysemu.h"
+#include "net/net.h"
+
+/* ------------------------------------------------------------- */
+
+#define XEN_BUFSIZE 1024
+
+struct XenDevice;
+
+/* driver uses grant tables -> open gntdev device (xendev->gnttabdev) */
+#define DEVOPS_FLAG_NEED_GNTDEV 1
+/* don't expect frontend doing correct state transitions (aka console quirk) */
+#define DEVOPS_FLAG_IGNORE_STATE 2
+
+struct XenDevOps {
+ size_t size;
+ uint32_t flags;
+ void (*alloc)(struct XenDevice *xendev);
+ int (*init)(struct XenDevice *xendev);
+ int (*initialise)(struct XenDevice *xendev);
+ void (*connected)(struct XenDevice *xendev);
+ void (*event)(struct XenDevice *xendev);
+ void (*disconnect)(struct XenDevice *xendev);
+ int (*free)(struct XenDevice *xendev);
+ void (*backend_changed)(struct XenDevice *xendev, const char *node);
+ void (*frontend_changed)(struct XenDevice *xendev, const char *node);
+};
+
+struct XenDevice {
+ const char *type;
+ int dom;
+ int dev;
+ char name[64];
+ int debug;
+
+ enum xenbus_state be_state;
+ enum xenbus_state fe_state;
+ int online;
+ char be[XEN_BUFSIZE];
+ char *fe;
+ char *protocol;
+ int remote_port;
+ int local_port;
+
+ XenEvtchn evtchndev;
+ XenGnttab gnttabdev;
+
+ struct XenDevOps *ops;
+ QTAILQ_ENTRY(XenDevice) next;
+};
+
+/* ------------------------------------------------------------- */
+
+/* variables */
+extern XenXC xen_xc;
+extern struct xs_handle *xenstore;
+extern const char *xen_protocol;
+
+/* xenstore helper functions */
+int xenstore_write_str(const char *base, const char *node, const char *val);
+int xenstore_write_int(const char *base, const char *node, int ival);
+int xenstore_write_int64(const char *base, const char *node, int64_t ival);
+char *xenstore_read_str(const char *base, const char *node);
+int xenstore_read_int(const char *base, const char *node, int *ival);
+
+int xenstore_write_be_str(struct XenDevice *xendev, const char *node, const char *val);
+int xenstore_write_be_int(struct XenDevice *xendev, const char *node, int ival);
+int xenstore_write_be_int64(struct XenDevice *xendev, const char *node, int64_t ival);
+char *xenstore_read_be_str(struct XenDevice *xendev, const char *node);
+int xenstore_read_be_int(struct XenDevice *xendev, const char *node, int *ival);
+char *xenstore_read_fe_str(struct XenDevice *xendev, const char *node);
+int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int *ival);
+
+const char *xenbus_strstate(enum xenbus_state state);
+struct XenDevice *xen_be_find_xendev(const char *type, int dom, int dev);
+void xen_be_check_state(struct XenDevice *xendev);
+
+/* xen backend driver bits */
+int xen_be_init(void);
+int xen_be_register(const char *type, struct XenDevOps *ops);
+int xen_be_set_state(struct XenDevice *xendev, enum xenbus_state state);
+int xen_be_bind_evtchn(struct XenDevice *xendev);
+void xen_be_unbind_evtchn(struct XenDevice *xendev);
+int xen_be_send_notify(struct XenDevice *xendev);
+void xen_be_printf(struct XenDevice *xendev, int msg_level, const char *fmt, ...)
+ GCC_FMT_ATTR(3, 4);
+
+/* actual backend drivers */
+extern struct XenDevOps xen_console_ops; /* xen_console.c */
+extern struct XenDevOps xen_kbdmouse_ops; /* xen_framebuffer.c */
+extern struct XenDevOps xen_framebuffer_ops; /* xen_framebuffer.c */
+extern struct XenDevOps xen_blkdev_ops; /* xen_disk.c */
+extern struct XenDevOps xen_netdev_ops; /* xen_nic.c */
+
+void xen_init_display(int domid);
+
+/* configuration (aka xenbus setup) */
+void xen_config_cleanup(void);
+int xen_config_dev_blk(DriveInfo *disk);
+int xen_config_dev_nic(NICInfo *nic);
+int xen_config_dev_vfb(int vdev, const char *type);
+int xen_config_dev_vkbd(int vdev);
+int xen_config_dev_console(int vdev);
+
+#endif /* QEMU_HW_XEN_BACKEND_H */
diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h
new file mode 100644
index 0000000000..2d5a25bf40
--- /dev/null
+++ b/include/hw/xen/xen_common.h
@@ -0,0 +1,160 @@
+#ifndef QEMU_HW_XEN_COMMON_H
+#define QEMU_HW_XEN_COMMON_H 1
+
+#include "config-host.h"
+
+#include <stddef.h>
+#include <inttypes.h>
+
+#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 "qemu/queue.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;
+typedef int XenGnttab;
+
+# define XC_INTERFACE_FMT "%i"
+# define XC_HANDLER_INITIAL_VALUE -1
+
+static inline XenEvtchn xen_xc_evtchn_open(void *logger,
+ unsigned int open_flags)
+{
+ return xc_evtchn_open();
+}
+
+static inline XenGnttab xen_xc_gnttab_open(void *logger,
+ unsigned int open_flags)
+{
+ return xc_gnttab_open();
+}
+
+static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
+ unsigned int open_flags)
+{
+ return xc_interface_open();
+}
+
+static inline int xc_fd(int xen_xc)
+{
+ return xen_xc;
+}
+
+
+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 */
+#else
+
+typedef xc_interface *XenXC;
+typedef xc_evtchn *XenEvtchn;
+typedef xc_gnttab *XenGnttab;
+
+# define XC_INTERFACE_FMT "%p"
+# define XC_HANDLER_INITIAL_VALUE NULL
+
+static inline XenEvtchn xen_xc_evtchn_open(void *logger,
+ unsigned int open_flags)
+{
+ return xc_evtchn_open(logger, open_flags);
+}
+
+static inline XenGnttab xen_xc_gnttab_open(void *logger,
+ unsigned int open_flags)
+{
+ return xc_gnttab_open(logger, open_flags);
+}
+
+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);
+}
+
+/* FIXME There is now way to have the xen fd */
+static inline int xc_fd(xc_interface *xen_xc)
+{
+ return -1;
+}
+#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;
+}
+#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);
+
+#endif /* QEMU_HW_XEN_COMMON_H */
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-25 18:55:14 +0000