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/*
* 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_
#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;
#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:
*/
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