--- /dev/null
+/*
+ * vmx_assist.h: Context definitions for the VMXASSIST world switch.
+ *
+ * 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.
+ *
+ * Leendert van Doorn, leendert@watson.ibm.com
+ * Copyright (c) 2005, International Business Machines Corporation.
+ */
+
+#ifndef _VMX_ASSIST_H_
+#define _VMX_ASSIST_H_
+
+#include <palacios/vm_guest.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__
+
+#define NR_EXCEPTION_HANDLER 32
+#define NR_INTERRUPT_HANDLERS 16
+#define NR_TRAPS (NR_EXCEPTION_HANDLER+NR_INTERRUPT_HANDLERS)
+
+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;
+
+ unsigned char rm_irqbase[2];
+};
+typedef struct vmx_assist_context vmx_assist_context_t;
+
+int v3_vmxassist_ctx_switch(struct guest_info * info);
+
+#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:
+ */