Upgrade Xen interface headers to Xen 4.2.1.

Move FreeBSD from interface version 0x00030204 to 0x00030208.
Updates are required to our grant table implementation before we
can bump this further.

sys/xen/hvm.h:
	Replace the implementation of hvm_get_parameter(), formerly located
	in sys/xen/interface/hvm/params.h.  Linux has a similar file which
	primarily stores this function.

sys/xen/xenstore/xenstore.c:
	Include new xen/hvm.h header file to get hvm_get_parameter().

sys/amd64/include/xen/xen-os.h:
sys/i386/include/xen/xen-os.h:
	Correctly protect function definition and variables from being
	included into assembly files in xen-os.h

	Xen memory barriers are now prefixed with "xen_" to avoid conflicts
	with OS native primatives.  Define Xen memory barriers in terms of
	the native FreeBSD primatives.

Sponsored by:	Spectra Logic Corporation
Reviewed by:	Roger Pau Monné
Tested by:	Roger Pau Monné
Obtained from:	Roger Pau Monné (bug fixes)

1 files changed, 80 insertions, 0 deletions

diff --git a/sys/xen/interface/mem_event.h b/sys/xen/interface/mem_event.h
new file mode 100644
index 0000000..5d0bd4c
--- /dev/null
+++ b/sys/xen/interface/mem_event.h
@@ -0,0 +1,80 @@
+/******************************************************************************
+ * mem_event.h
+ *
+ * Memory event common structures.
+ *
+ * Copyright (c) 2009 by Citrix Systems, Inc. (Patrick Colp)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _XEN_PUBLIC_MEM_EVENT_H
+#define _XEN_PUBLIC_MEM_EVENT_H
+
+#include "xen.h"
+#include "io/ring.h"
+
+/* Memory event flags */
+#define MEM_EVENT_FLAG_VCPU_PAUSED  (1 << 0)
+#define MEM_EVENT_FLAG_DROP_PAGE    (1 << 1)
+#define MEM_EVENT_FLAG_EVICT_FAIL   (1 << 2)
+#define MEM_EVENT_FLAG_FOREIGN      (1 << 3)
+#define MEM_EVENT_FLAG_DUMMY        (1 << 4)
+
+/* Reasons for the memory event request */
+#define MEM_EVENT_REASON_UNKNOWN     0    /* typical reason */
+#define MEM_EVENT_REASON_VIOLATION   1    /* access violation, GFN is address */
+#define MEM_EVENT_REASON_CR0         2    /* CR0 was hit: gfn is CR0 value */
+#define MEM_EVENT_REASON_CR3         3    /* CR3 was hit: gfn is CR3 value */
+#define MEM_EVENT_REASON_CR4         4    /* CR4 was hit: gfn is CR4 value */
+#define MEM_EVENT_REASON_INT3        5    /* int3 was hit: gla/gfn are RIP */
+#define MEM_EVENT_REASON_SINGLESTEP  6    /* single step was invoked: gla/gfn are RIP */
+
+typedef struct mem_event_st {
+    uint32_t flags;
+    uint32_t vcpu_id;
+
+    uint64_t gfn;
+    uint64_t offset;
+    uint64_t gla; /* if gla_valid */
+
+    uint32_t p2mt;
+
+    uint16_t access_r:1;
+    uint16_t access_w:1;
+    uint16_t access_x:1;
+    uint16_t gla_valid:1;
+    uint16_t available:12;
+
+    uint16_t reason;
+} mem_event_request_t, mem_event_response_t;
+
+DEFINE_RING_TYPES(mem_event, mem_event_request_t, mem_event_response_t);
+
+#endif
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */