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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
* Copyright (C) 2013 Cavium, Inc.
* Authors: Sanjay Lal <sanjayl@kymasys.com>
*/
#ifndef __LINUX_KVM_MIPS_H
#define __LINUX_KVM_MIPS_H
#include <linux/types.h>
/*
* KVM MIPS specific structures and definitions.
*
* Some parts derived from the x86 version of this file.
*/
/*
* for KVM_GET_REGS and KVM_SET_REGS
*
* If Config[AT] is zero (32-bit CPU), the register contents are
* stored in the lower 32-bits of the struct kvm_regs fields and sign
* extended to 64-bits.
*/
struct kvm_regs {
/* out (KVM_GET_REGS) / in (KVM_SET_REGS) */
__u64 gpr[32];
__u64 hi;
__u64 lo;
__u64 pc;
};
/*
* for KVM_GET_FPU and KVM_SET_FPU
*
* If Status[FR] is zero (32-bit FPU), the upper 32-bits of the FPRs
* are zero filled.
*/
struct kvm_fpu {
__u64 fpr[32];
__u32 fir;
__u32 fccr;
__u32 fexr;
__u32 fenr;
__u32 fcsr;
__u32 pad;
};
/*
* For MIPS, we use KVM_SET_ONE_REG and KVM_GET_ONE_REG to access CP0
* registers. The id field is broken down as follows:
*
* bits[2..0] - Register 'sel' index.
* bits[7..3] - Register 'rd' index.
* bits[15..8] - Must be zero.
* bits[63..16] - 1 -> CP0 registers.
*
* Other sets registers may be added in the future. Each set would
* have its own identifier in bits[63..16].
*
* The addr field of struct kvm_one_reg must point to an aligned
* 64-bit wide location. For registers that are narrower than
* 64-bits, the value is stored in the low order bits of the location,
* and sign extended to 64-bits.
*
* The registers defined in struct kvm_regs are also accessible, the
* id values for these are below.
*/
#define KVM_REG_MIPS_R0 0
#define KVM_REG_MIPS_R1 1
#define KVM_REG_MIPS_R2 2
#define KVM_REG_MIPS_R3 3
#define KVM_REG_MIPS_R4 4
#define KVM_REG_MIPS_R5 5
#define KVM_REG_MIPS_R6 6
#define KVM_REG_MIPS_R7 7
#define KVM_REG_MIPS_R8 8
#define KVM_REG_MIPS_R9 9
#define KVM_REG_MIPS_R10 10
#define KVM_REG_MIPS_R11 11
#define KVM_REG_MIPS_R12 12
#define KVM_REG_MIPS_R13 13
#define KVM_REG_MIPS_R14 14
#define KVM_REG_MIPS_R15 15
#define KVM_REG_MIPS_R16 16
#define KVM_REG_MIPS_R17 17
#define KVM_REG_MIPS_R18 18
#define KVM_REG_MIPS_R19 19
#define KVM_REG_MIPS_R20 20
#define KVM_REG_MIPS_R21 21
#define KVM_REG_MIPS_R22 22
#define KVM_REG_MIPS_R23 23
#define KVM_REG_MIPS_R24 24
#define KVM_REG_MIPS_R25 25
#define KVM_REG_MIPS_R26 26
#define KVM_REG_MIPS_R27 27
#define KVM_REG_MIPS_R28 28
#define KVM_REG_MIPS_R29 29
#define KVM_REG_MIPS_R30 30
#define KVM_REG_MIPS_R31 31
#define KVM_REG_MIPS_HI 32
#define KVM_REG_MIPS_LO 33
#define KVM_REG_MIPS_PC 34
/*
* KVM MIPS specific structures and definitions
*
*/
struct kvm_debug_exit_arch {
__u64 epc;
};
/* for KVM_SET_GUEST_DEBUG */
struct kvm_guest_debug_arch {
};
/* definition of registers in kvm_run */
struct kvm_sync_regs {
};
/* dummy definition */
struct kvm_sregs {
};
struct kvm_mips_interrupt {
/* in */
__u32 cpu;
__u32 irq;
};
#endif /* __LINUX_KVM_MIPS_H */
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