From: Jack Lange <jarusl@cs.northwestern.edu>
Date: Thu, 5 Aug 2010 18:48:46 +0000 (-0500)
Subject: File support added (interface to file support in host)
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=commitdiff_plain;h=b25296b8b79d1964be81a4ebfa8262d4ca36a63f;p=palacios.git

File support added (interface to file support in host)

Conflicts:

	Kconfig
---

diff --git a/palacios/include/palacios/vmm_file.h b/palacios/include/palacios/vmm_file.h
new file mode 100644
index 0000000..ea8dd97
--- /dev/null
+++ b/palacios/include/palacios/vmm_file.h
@@ -0,0 +1,86 @@
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2010, Peter Dinda (pdinda@cs.northwestern.edu> 
+ * Copyright (c) 2010, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Peter Dinda <pdinda@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+
+#ifndef __VMM_FILE_H__
+#define __VMM_FILE_H__
+
+#include <palacios/vmm.h>
+
+
+#ifdef __V3VEE__
+
+#define V3_FileOpen(path, mode)						\
+    ({									\
+	extern struct v3_file_hooks *file_hooks;				\
+	((file_hooks) && (file_hooks)->file_open) ?				\
+	    (file_hooks)->file_open((path), (mode)) : -1 ;		\
+    })
+
+#define V3_FileClose(fd)						\
+    ({									\
+	extern struct v3_file_hooks *file_hooks;				\
+	((file_hooks) && (file_hooks)->file_close) ?				\
+	    (file_hooks)->file_close((fd))  :  -1 ;	\
+    })
+
+#define V3_FileSize(fd)						\
+    ({									\
+	extern struct v3_file_hooks *file_hooks;				\
+	((file_hooks) && (file_hooks)->file_size) ?				\
+	    (file_hooks)->file_size((fd))  : -1 ;	\
+    })
+
+#define V3_FileRead(fd,start,buf,len)					\
+    ({									\
+	extern struct v3_file_hooks *file_hooks;				\
+	((file_hooks) && (file_hooks)->file_read) ?				\
+	    (file_hooks)->file_read((fd),(start),(buf),(length)) : -1 ;  \
+    })
+
+#define V3_FileWrite(fd,start,buf,len)					\
+    ({									\
+	extern struct v3_file_hooks *file_hooks;				\
+	((file_hooks) && (file_hooks)->file_write) ?				\
+	    (file_hooks)->file_write((fd),(start),(buf),(length)) : -1 ;  \
+    })
+
+
+#endif
+
+#define FILE_OPEN_MODE_READ	(1 << 0)
+#define FILE_OPEN_MODE_WRITE	(1 << 1)
+
+struct v3_file_hooks {
+
+    int (*file_open)(const char *path, int mode);
+    int (*file_close)(int fd);
+
+    long long (*file_size)(int fd);
+
+    // blocking reads and writes
+    long long  (*file_read)(int fd,  long long start, void *buffer, long long length);
+    long long  (*file_write)(int fd, long long start, void *buffer, long long length);
+
+};
+
+
+extern void V3_Init_File(struct v3_file_hooks * hooks);
+
+#endif
diff --git a/palacios/src/palacios/Makefile b/palacios/src/palacios/Makefile
index 2d2eda8..52497e1 100644
--- a/palacios/src/palacios/Makefile
+++ b/palacios/src/palacios/Makefile
@@ -60,8 +60,9 @@ obj-$(CONFIG_VMX) +=  	vmx.o \
 obj-$(CONFIG_INSTRUMENT_VMM) += vmm_instrument.o
 obj-$(CONFIG_TELEMETRY) += vmm_telemetry.o 
 obj-$(CONFIG_SOCKET) +=  vmm_socket.o
-obj-$(CONFIG_CONSOLE) +=  vmm_console.o
 obj-$(CONFIG_VNET) += vmm_vnet.o
+obj-$(CONFIG_FILE) += vmm_file.o
+
 
 obj-$(CONFIG_SYMBIOTIC) += vmm_symbiotic.o vmm_symspy.o
 obj-$(CONFIG_SYMCALL) += vmm_symcall.o
diff --git a/palacios/src/palacios/vmm_file.c b/palacios/src/palacios/vmm_file.c
new file mode 100644
index 0000000..ada9972
--- /dev/null
+++ b/palacios/src/palacios/vmm_file.c
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2010, Peter Dinda <pdinda@northwestern.edu> 
+ * Copyright (c) 2010, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Peter Dinda <pdinda@northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+
+#include <palacios/vmm_file.h>
+#include <palacios/vmm.h>
+#include <palacios/vmm_debug.h>
+#include <palacios/vmm_types.h>
+
+
+struct v3_file_hooks * file_hooks = 0;
+
+void V3_Init_File(struct v3_file_hooks * hooks) {
+    file_hooks = hooks;
+    PrintDebug("V3 file access inited\n");
+
+    return;
+}