1 files changed, 108 insertions, 0 deletions
diff --git a/xenolinux-2.4.25-sparse/arch/xeno/drivers/dom0/dom0_core.c b/xenolinux-2.4.25-sparse/arch/xeno/drivers/dom0/dom0_core.c
new file mode 100644
index 0000000000..08144d9678
--- /dev/null
+++ b/xenolinux-2.4.25-sparse/arch/xeno/drivers/dom0/dom0_core.c
@@ -0,0 +1,108 @@
+/******************************************************************************
+ * dom0_core.c
+ * 
+ * Interface to privileged domain-0 commands.
+ * 
+ * Copyright (c) 2002-2003, K A Fraser, B Dragovic
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/swap.h>
+#include <linux/smp_lock.h>
+#include <linux/swapctl.h>
+#include <linux/iobuf.h>
+#include <linux/highmem.h>
+#include <linux/pagemap.h>
+#include <linux/seq_file.h>
+
+#include <asm/pgalloc.h>
+#include <asm/pgtable.h>
+#include <asm/uaccess.h>
+#include <asm/tlb.h>
+#include <asm/proc_cmd.h>
+#include <asm/hypervisor-ifs/dom0_ops.h>
+#include <asm/xeno_proc.h>
+
+#include "../block/xl_block.h"
+
+static struct proc_dir_entry *privcmd_intf;
+
+
+static int privcmd_ioctl(struct inode *inode, struct file *file,
+                         unsigned int cmd, unsigned long data)
+{
+    int ret = 0;
+
+    switch ( cmd )
+    {
+    case IOCTL_PRIVCMD_HYPERCALL:
+    {
+        privcmd_hypercall_t hypercall;
+  
+        if ( copy_from_user(&hypercall, (void *)data, sizeof(hypercall)) )
+            return -EFAULT;
+
+        __asm__ __volatile__ (
+            "pushl %%ebx; pushl %%ecx; pushl %%edx; pushl %%esi; pushl %%edi; "
+            "movl  4(%%eax),%%ebx ;"
+            "movl  8(%%eax),%%ecx ;"
+            "movl 12(%%eax),%%edx ;"
+            "movl 16(%%eax),%%esi ;"
+            "movl 20(%%eax),%%edi ;"
+            "movl   (%%eax),%%eax ;"
+            TRAP_INSTR "; "
+            "popl %%edi; popl %%esi; popl %%edx; popl %%ecx; popl %%ebx"
+            : "=a" (ret) : "0" (&hypercall) : "memory" );
+
+    }
+    break;
+
+    default:
+        ret = -EINVAL;
+    	break;
+	}
+    return ret;
+}
+
+
+static struct file_operations privcmd_file_ops = {
+  ioctl : privcmd_ioctl
+};
+
+
+static int __init init_module(void)
+{
+    if ( !(start_info.flags & SIF_PRIVILEGED) )
+        return 0;
+
+    /* xeno control interface */
+    privcmd_intf = create_xeno_proc_entry("privcmd", 0400);
+    if ( privcmd_intf != NULL )
+    {
+        privcmd_intf->owner      = THIS_MODULE;
+        privcmd_intf->nlink      = 1;
+	privcmd_intf->proc_fops  = &privcmd_file_ops;
+    }
+
+    return 0;
+}
+
+
+static void __exit cleanup_module(void)
+{
+    if ( privcmd_intf == NULL ) return;
+    remove_xeno_proc_entry("privcmd");
+    privcmd_intf = NULL;
+}
+
+
+module_init(init_module);
+module_exit(cleanup_module);