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-rw-r--r--hw/xen_backend.c21
-rw-r--r--hw/xen_backend.h6
-rw-r--r--hw/xen_common.h95
-rw-r--r--hw/xen_disk.c4
-rw-r--r--hw/xen_domainbuild.c3
5 files changed, 99 insertions, 30 deletions
diff --git a/hw/xen_backend.c b/hw/xen_backend.c
index 9f4ec4b40e..5f58a3fe64 100644
--- a/hw/xen_backend.c
+++ b/hw/xen_backend.c
@@ -43,7 +43,8 @@
/* ------------------------------------------------------------- */
/* public */
-int xen_xc;
+XenXC xen_xc = XC_HANDLER_INITIAL_VALUE;
+XenGnttab xen_xcg = XC_HANDLER_INITIAL_VALUE;
struct xs_handle *xenstore = NULL;
const char *xen_protocol;
@@ -214,8 +215,8 @@ static struct XenDevice *xen_be_get_xendev(const char *type, int dom, int dev,
xendev->debug = debug;
xendev->local_port = -1;
- xendev->evtchndev = xc_evtchn_open();
- if (xendev->evtchndev < 0) {
+ xendev->evtchndev = xen_xc_evtchn_open(NULL, 0);
+ if (xendev->evtchndev == XC_HANDLER_INITIAL_VALUE) {
xen_be_printf(NULL, 0, "can't open evtchn device\n");
qemu_free(xendev);
return NULL;
@@ -223,15 +224,15 @@ static struct XenDevice *xen_be_get_xendev(const char *type, int dom, int dev,
fcntl(xc_evtchn_fd(xendev->evtchndev), F_SETFD, FD_CLOEXEC);
if (ops->flags & DEVOPS_FLAG_NEED_GNTDEV) {
- xendev->gnttabdev = xc_gnttab_open();
- if (xendev->gnttabdev < 0) {
+ xendev->gnttabdev = xen_xc_gnttab_open(NULL, 0);
+ if (xendev->gnttabdev == XC_HANDLER_INITIAL_VALUE) {
xen_be_printf(NULL, 0, "can't open gnttab device\n");
xc_evtchn_close(xendev->evtchndev);
qemu_free(xendev);
return NULL;
}
} else {
- xendev->gnttabdev = -1;
+ xendev->gnttabdev = XC_HANDLER_INITIAL_VALUE;
}
QTAILQ_INSERT_TAIL(&xendevs, xendev, next);
@@ -277,10 +278,10 @@ static struct XenDevice *xen_be_del_xendev(int dom, int dev)
qemu_free(xendev->fe);
}
- if (xendev->evtchndev >= 0) {
+ if (xendev->evtchndev != XC_HANDLER_INITIAL_VALUE) {
xc_evtchn_close(xendev->evtchndev);
}
- if (xendev->gnttabdev >= 0) {
+ if (xendev->gnttabdev != XC_HANDLER_INITIAL_VALUE) {
xc_gnttab_close(xendev->gnttabdev);
}
@@ -664,8 +665,8 @@ int xen_be_init(void)
goto err;
}
- xen_xc = xc_interface_open();
- if (xen_xc == -1) {
+ xen_xc = xen_xc_interface_open(0, 0, 0);
+ if (xen_xc == XC_HANDLER_INITIAL_VALUE) {
xen_be_printf(NULL, 0, "can't open xen interface\n");
goto err;
}
diff --git a/hw/xen_backend.h b/hw/xen_backend.h
index 1b428e3bf4..6401c85a7e 100644
--- a/hw/xen_backend.h
+++ b/hw/xen_backend.h
@@ -45,8 +45,8 @@ struct XenDevice {
int remote_port;
int local_port;
- int evtchndev;
- int gnttabdev;
+ XenEvtchn evtchndev;
+ XenGnttab gnttabdev;
struct XenDevOps *ops;
QTAILQ_ENTRY(XenDevice) next;
@@ -55,7 +55,7 @@ struct XenDevice {
/* ------------------------------------------------------------- */
/* variables */
-extern int xen_xc;
+extern XenXC xen_xc;
extern struct xs_handle *xenstore;
extern const char *xen_protocol;
diff --git a/hw/xen_common.h b/hw/xen_common.h
index 8a55b44f0b..47b8afea02 100644
--- a/hw/xen_common.h
+++ b/hw/xen_common.h
@@ -1,6 +1,8 @@
#ifndef QEMU_HW_XEN_COMMON_H
#define QEMU_HW_XEN_COMMON_H 1
+#include "config-host.h"
+
#include <stddef.h>
#include <inttypes.h>
@@ -13,22 +15,87 @@
#include "qemu-queue.h"
/*
- * tweaks needed to build with different xen versions
- * 0x00030205 -> 3.1.0
- * 0x00030207 -> 3.2.0
- * 0x00030208 -> unstable
+ * We don't support Xen prior to 3.3.0.
*/
-#include <xen/xen-compat.h>
-#if __XEN_LATEST_INTERFACE_VERSION__ < 0x00030205
-# define evtchn_port_or_error_t int
-#endif
-#if __XEN_LATEST_INTERFACE_VERSION__ < 0x00030207
-# define xc_map_foreign_pages xc_map_foreign_batch
+
+/* 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
-#if __XEN_LATEST_INTERFACE_VERSION__ < 0x00030208
-# define xen_mb() mb()
-# define xen_rmb() rmb()
-# define xen_wmb() wmb()
+
+
+/* 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;
+}
+
+
+/* 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
#endif /* QEMU_HW_XEN_COMMON_H */
diff --git a/hw/xen_disk.c b/hw/xen_disk.c
index 2b3a8feac7..233c8c99c6 100644
--- a/hw/xen_disk.c
+++ b/hw/xen_disk.c
@@ -242,7 +242,7 @@ err:
static void ioreq_unmap(struct ioreq *ioreq)
{
- int gnt = ioreq->blkdev->xendev.gnttabdev;
+ XenGnttab gnt = ioreq->blkdev->xendev.gnttabdev;
int i;
if (ioreq->v.niov == 0) {
@@ -275,7 +275,7 @@ static void ioreq_unmap(struct ioreq *ioreq)
static int ioreq_map(struct ioreq *ioreq)
{
- int gnt = ioreq->blkdev->xendev.gnttabdev;
+ XenGnttab gnt = ioreq->blkdev->xendev.gnttabdev;
int i;
if (ioreq->v.niov == 0) {
diff --git a/hw/xen_domainbuild.c b/hw/xen_domainbuild.c
index 4093587df1..a6a12e5930 100644
--- a/hw/xen_domainbuild.c
+++ b/hw/xen_domainbuild.c
@@ -175,8 +175,9 @@ static int xen_domain_watcher(void)
for (i = 3; i < n; i++) {
if (i == fd[0])
continue;
- if (i == xen_xc)
+ if (i == xc_fd(xen_xc)) {
continue;
+ }
close(i);
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-20 19:30:36 +0000