This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / xen / interface / hvm / vmx_assist.h

diff --git a/include/xen/interface/hvm/vmx_assist.h b/include/xen/interface/hvm/vmx_assist.h
new file mode 100644 (file)
index 0000000..f987b0f
--- /dev/null
+++ b/include/xen/interface/hvm/vmx_assist.h
@@ -0,0 +1,98 @@
+/*
+ * vmx_assist.h: Context definitions for the VMXASSIST world switch.
+ *
+ * Leendert van Doorn, leendert@watson.ibm.com
+ * Copyright (c) 2005, International Business Machines Corporation.
+ */
+
+#ifndef _VMX_ASSIST_H_
+#define _VMX_ASSIST_H_
+
+#define VMXASSIST_BASE         0xD0000
+#define VMXASSIST_MAGIC        0x17101966
+#define VMXASSIST_MAGIC_OFFSET (VMXASSIST_BASE+8)
+
+#define VMXASSIST_NEW_CONTEXT (VMXASSIST_BASE + 12)
+#define VMXASSIST_OLD_CONTEXT (VMXASSIST_NEW_CONTEXT + 4)
+
+#ifndef __ASSEMBLY__
+
+union vmcs_arbytes {
+    struct arbyte_fields {
+        unsigned int seg_type : 4,
+            s         : 1,
+            dpl       : 2,
+            p         : 1,
+            reserved0 : 4,
+            avl       : 1,
+            reserved1 : 1,
+            default_ops_size: 1,
+            g         : 1,
+            null_bit  : 1,
+            reserved2 : 15;
+    } fields;
+    unsigned int bytes;
+};
+
+/*
+ * World switch state
+ */
+struct vmx_assist_context {
+    uint32_t  eip;        /* execution pointer */
+    uint32_t  esp;        /* stack pointer */
+    uint32_t  eflags;     /* flags register */
+    uint32_t  cr0;
+    uint32_t  cr3;        /* page table directory */
+    uint32_t  cr4;
+    uint32_t  idtr_limit; /* idt */
+    uint32_t  idtr_base;
+    uint32_t  gdtr_limit; /* gdt */
+    uint32_t  gdtr_base;
+    uint32_t  cs_sel;     /* cs selector */
+    uint32_t  cs_limit;
+    uint32_t  cs_base;
+    union vmcs_arbytes cs_arbytes;
+    uint32_t  ds_sel;     /* ds selector */
+    uint32_t  ds_limit;
+    uint32_t  ds_base;
+    union vmcs_arbytes ds_arbytes;
+    uint32_t  es_sel;     /* es selector */
+    uint32_t  es_limit;
+    uint32_t  es_base;
+    union vmcs_arbytes es_arbytes;
+    uint32_t  ss_sel;     /* ss selector */
+    uint32_t  ss_limit;
+    uint32_t  ss_base;
+    union vmcs_arbytes ss_arbytes;
+    uint32_t  fs_sel;     /* fs selector */
+    uint32_t  fs_limit;
+    uint32_t  fs_base;
+    union vmcs_arbytes fs_arbytes;
+    uint32_t  gs_sel;     /* gs selector */
+    uint32_t  gs_limit;
+    uint32_t  gs_base;
+    union vmcs_arbytes gs_arbytes;
+    uint32_t  tr_sel;     /* task selector */
+    uint32_t  tr_limit;
+    uint32_t  tr_base;
+    union vmcs_arbytes tr_arbytes;
+    uint32_t  ldtr_sel;   /* ldtr selector */
+    uint32_t  ldtr_limit;
+    uint32_t  ldtr_base;
+    union vmcs_arbytes ldtr_arbytes;
+};
+typedef struct vmx_assist_context vmx_assist_context_t;
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _VMX_ASSIST_H_ */
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * tab-width: 4
+ * indent-tabs-mode: nil
+ * End:
+ */