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-rw-r--r--include/hw/xen/xen_common.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h
index 07731b9..95612a4 100644
--- a/include/hw/xen/xen_common.h
+++ b/include/hw/xen/xen_common.h
@@ -164,4 +164,19 @@ 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,
+ unsigned long *vmport_regs_pfn)
+{
+ return xc_get_hvm_param(xc, dom, HVM_PARAM_VMPORT_REGS_PFN,
+ vmport_regs_pfn);
+}
+#else
+static inline int xen_get_vmport_regs_pfn(XenXC xc, domid_t dom,
+ unsigned long *vmport_regs_pfn)
+{
+ return -ENOSYS;
+}
+#endif
+
#endif /* QEMU_HW_XEN_COMMON_H */