xen: Implement XEN_DOMCTL_set_max_evtchn

This is new in Xen 4.4.

From: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13738

diff --git a/coregrind/m_syswrap/syswrap-xen.c b/coregrind/m_syswrap/syswrap-xen.c
index 7561ddaa91c7f225f4c04bc221e2022d936bdb2d..02205da4f8e72e6ee2c0dd554699a6c32f0f11f8 100644 (file)
--- a/coregrind/m_syswrap/syswrap-xen.c
+++ b/coregrind/m_syswrap/syswrap-xen.c
@@ -759,6 +759,10 @@ PRE(domctl)
        }
        break;
 
+   case VKI_XEN_DOMCTL_set_max_evtchn:
+      PRE_XEN_DOMCTL_READ(set_max_evtchn, max_port);
+      break;
+
    default:
       bad_subop(tid, layout, arrghs, status, flags,
                 "__HYPERVISOR_domctl", domctl->cmd);
@@ -1149,6 +1153,7 @@ POST(domctl){
    case VKI_XEN_DOMCTL_set_cpuid:
    case VKI_XEN_DOMCTL_unpausedomain:
    case VKI_XEN_DOMCTL_sethvmcontext:
+   case VKI_XEN_DOMCTL_set_max_evtchn:
       /* No output fields */
       break;
 

diff --git a/include/vki/vki-xen-domctl.h b/include/vki/vki-xen-domctl.h
index 7cce4af37c35fc821b0121b33a8b73bbd3605ea2..2d07f415a8826e35d33807b092a8639c84272ce3 100644 (file)
--- a/include/vki/vki-xen-domctl.h
+++ b/include/vki/vki-xen-domctl.h
@@ -84,6 +84,7 @@
 #define VKI_XEN_DOMCTL_set_broken_page_p2m           67
 #define VKI_XEN_DOMCTL_setnodeaffinity               68
 #define VKI_XEN_DOMCTL_getnodeaffinity               69
+#define VKI_XEN_DOMCTL_set_max_evtchn                70
 #define VKI_XEN_DOMCTL_gdbsx_guestmemio            1000
 #define VKI_XEN_DOMCTL_gdbsx_pausevcpu             1001
 #define VKI_XEN_DOMCTL_gdbsx_unpausevcpu           1002
@@ -304,6 +305,10 @@ struct vki_xen_domctl_address_size {
     vki_uint32_t size;
 };
 
+struct vki_xen_domctl_set_max_evtchn {
+    vki_uint32_t max_port;
+};
+
 struct vki_xen_domctl {
     vki_uint32_t cmd;
     vki_uint32_t interface_version; /* XEN_DOMCTL_INTERFACE_VERSION */
@@ -359,6 +364,7 @@ struct vki_xen_domctl {
         //struct vki_xen_domctl_set_access_required access_required;
         //struct vki_xen_domctl_audit_p2m         audit_p2m;
         //struct vki_xen_domctl_set_virq_handler  set_virq_handler;
+        struct vki_xen_domctl_set_max_evtchn    set_max_evtchn;
         //struct vki_xen_domctl_gdbsx_memio       gdbsx_guest_memio;
         //struct vki_xen_domctl_set_broken_page_p2m set_broken_page_p2m;
         //struct vki_xen_domctl_gdbsx_pauseunp_vcpu gdbsx_pauseunp_vcpu;