]>
git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/blob - arch/mips/include/uapi/asm/kvm.h
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
7 * Copyright (C) 2013 Cavium, Inc.
8 * Authors: Sanjay Lal <sanjayl@kymasys.com>
11 #ifndef __LINUX_KVM_MIPS_H
12 #define __LINUX_KVM_MIPS_H
14 #include <linux/types.h>
17 * KVM MIPS specific structures and definitions.
19 * Some parts derived from the x86 version of this file.
22 #define __KVM_HAVE_READONLY_MEM
24 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
27 * for KVM_GET_REGS and KVM_SET_REGS
29 * If Config[AT] is zero (32-bit CPU), the register contents are
30 * stored in the lower 32-bits of the struct kvm_regs fields and sign
31 * extended to 64-bits.
34 /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */
42 * for KVM_GET_FPU and KVM_SET_FPU
49 * For MIPS, we use KVM_SET_ONE_REG and KVM_GET_ONE_REG to access various
50 * registers. The id field is broken down as follows:
52 * bits[63..52] - As per linux/kvm.h
53 * bits[51..32] - Must be zero.
54 * bits[31..16] - Register set.
56 * Register set = 0: GP registers from kvm_regs (see definitions below).
58 * Register set = 1: CP0 registers.
59 * bits[15..8] - COP0 register set.
61 * COP0 register set = 0: Main CP0 registers.
62 * bits[7..3] - Register 'rd' index.
63 * bits[2..0] - Register 'sel' index.
65 * COP0 register set = 1: MAARs.
66 * bits[7..0] - MAAR index.
68 * Register set = 2: KVM specific registers (see definitions below).
70 * Register set = 3: FPU / MSA registers (see definitions below).
72 * Other sets registers may be added in the future. Each set would
73 * have its own identifier in bits[31..16].
76 #define KVM_REG_MIPS_GP (KVM_REG_MIPS | 0x0000000000000000ULL)
77 #define KVM_REG_MIPS_CP0 (KVM_REG_MIPS | 0x0000000000010000ULL)
78 #define KVM_REG_MIPS_KVM (KVM_REG_MIPS | 0x0000000000020000ULL)
79 #define KVM_REG_MIPS_FPU (KVM_REG_MIPS | 0x0000000000030000ULL)
83 * KVM_REG_MIPS_GP - General purpose registers from kvm_regs.
86 #define KVM_REG_MIPS_R0 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 0)
87 #define KVM_REG_MIPS_R1 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 1)
88 #define KVM_REG_MIPS_R2 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 2)
89 #define KVM_REG_MIPS_R3 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 3)
90 #define KVM_REG_MIPS_R4 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 4)
91 #define KVM_REG_MIPS_R5 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 5)
92 #define KVM_REG_MIPS_R6 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 6)
93 #define KVM_REG_MIPS_R7 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 7)
94 #define KVM_REG_MIPS_R8 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 8)
95 #define KVM_REG_MIPS_R9 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 9)
96 #define KVM_REG_MIPS_R10 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 10)
97 #define KVM_REG_MIPS_R11 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 11)
98 #define KVM_REG_MIPS_R12 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 12)
99 #define KVM_REG_MIPS_R13 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 13)
100 #define KVM_REG_MIPS_R14 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 14)
101 #define KVM_REG_MIPS_R15 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 15)
102 #define KVM_REG_MIPS_R16 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 16)
103 #define KVM_REG_MIPS_R17 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 17)
104 #define KVM_REG_MIPS_R18 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 18)
105 #define KVM_REG_MIPS_R19 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 19)
106 #define KVM_REG_MIPS_R20 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 20)
107 #define KVM_REG_MIPS_R21 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 21)
108 #define KVM_REG_MIPS_R22 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 22)
109 #define KVM_REG_MIPS_R23 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 23)
110 #define KVM_REG_MIPS_R24 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 24)
111 #define KVM_REG_MIPS_R25 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 25)
112 #define KVM_REG_MIPS_R26 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 26)
113 #define KVM_REG_MIPS_R27 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 27)
114 #define KVM_REG_MIPS_R28 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 28)
115 #define KVM_REG_MIPS_R29 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 29)
116 #define KVM_REG_MIPS_R30 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 30)
117 #define KVM_REG_MIPS_R31 (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 31)
119 #define KVM_REG_MIPS_HI (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 32)
120 #define KVM_REG_MIPS_LO (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 33)
121 #define KVM_REG_MIPS_PC (KVM_REG_MIPS_GP | KVM_REG_SIZE_U64 | 34)
125 * KVM_REG_MIPS_CP0 - Coprocessor 0 registers.
128 #define KVM_REG_MIPS_MAAR (KVM_REG_MIPS_CP0 | (1 << 8))
129 #define KVM_REG_MIPS_CP0_MAAR(n) (KVM_REG_MIPS_MAAR | \
130 KVM_REG_SIZE_U64 | (n))
134 * KVM_REG_MIPS_KVM - KVM specific control registers.
139 * DC: Set 0: Master disable CP0_Count and set COUNT_RESUME to now
140 * Set 1: Master re-enable CP0_Count with unchanged bias, handling timer
141 * interrupts since COUNT_RESUME
142 * This can be used to freeze the timer to get a consistent snapshot of
143 * the CP0_Count and timer interrupt pending state, while also resuming
144 * safely without losing time or guest timer interrupts.
145 * Other: Reserved, do not change.
147 #define KVM_REG_MIPS_COUNT_CTL (KVM_REG_MIPS_KVM | KVM_REG_SIZE_U64 | 0)
148 #define KVM_REG_MIPS_COUNT_CTL_DC 0x00000001
151 * CP0_Count resume monotonic nanoseconds
152 * The monotonic nanosecond time of the last set of COUNT_CTL.DC (master
153 * disable). Any reads and writes of Count related registers while
154 * COUNT_CTL.DC=1 will appear to occur at this time. When COUNT_CTL.DC is
155 * cleared again (master enable) any timer interrupts since this time will be
157 * Modifications to times in the future are rejected.
159 #define KVM_REG_MIPS_COUNT_RESUME (KVM_REG_MIPS_KVM | KVM_REG_SIZE_U64 | 1)
161 * CP0_Count rate in Hz
162 * Specifies the rate of the CP0_Count timer in Hz. Modifications occur without
163 * discontinuities in CP0_Count.
165 #define KVM_REG_MIPS_COUNT_HZ (KVM_REG_MIPS_KVM | KVM_REG_SIZE_U64 | 2)
169 * KVM_REG_MIPS_FPU - Floating Point and MIPS SIMD Architecture (MSA) registers.
171 * bits[15..8] - Register subset (see definitions below).
172 * bits[7..5] - Must be zero.
173 * bits[4..0] - Register number within register subset.
176 #define KVM_REG_MIPS_FPR (KVM_REG_MIPS_FPU | 0x0000000000000000ULL)
177 #define KVM_REG_MIPS_FCR (KVM_REG_MIPS_FPU | 0x0000000000000100ULL)
178 #define KVM_REG_MIPS_MSACR (KVM_REG_MIPS_FPU | 0x0000000000000200ULL)
181 * KVM_REG_MIPS_FPR - Floating point / Vector registers.
183 #define KVM_REG_MIPS_FPR_32(n) (KVM_REG_MIPS_FPR | KVM_REG_SIZE_U32 | (n))
184 #define KVM_REG_MIPS_FPR_64(n) (KVM_REG_MIPS_FPR | KVM_REG_SIZE_U64 | (n))
185 #define KVM_REG_MIPS_VEC_128(n) (KVM_REG_MIPS_FPR | KVM_REG_SIZE_U128 | (n))
188 * KVM_REG_MIPS_FCR - Floating point control registers.
190 #define KVM_REG_MIPS_FCR_IR (KVM_REG_MIPS_FCR | KVM_REG_SIZE_U32 | 0)
191 #define KVM_REG_MIPS_FCR_CSR (KVM_REG_MIPS_FCR | KVM_REG_SIZE_U32 | 31)
194 * KVM_REG_MIPS_MSACR - MIPS SIMD Architecture (MSA) control registers.
196 #define KVM_REG_MIPS_MSA_IR (KVM_REG_MIPS_MSACR | KVM_REG_SIZE_U32 | 0)
197 #define KVM_REG_MIPS_MSA_CSR (KVM_REG_MIPS_MSACR | KVM_REG_SIZE_U32 | 1)
201 * KVM MIPS specific structures and definitions
204 struct kvm_debug_exit_arch
{
208 /* for KVM_SET_GUEST_DEBUG */
209 struct kvm_guest_debug_arch
{
212 /* definition of registers in kvm_run */
213 struct kvm_sync_regs
{
216 /* dummy definition */
220 struct kvm_mips_interrupt
{
226 #endif /* __LINUX_KVM_MIPS_H */