tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License, version 2, as
4 * published by the Free Software Foundation.
5 *
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
10 *
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
14 *
15 * Copyright IBM Corp. 2007
16 *
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
18 */
19
20#ifndef __LINUX_KVM_POWERPC_H
21#define __LINUX_KVM_POWERPC_H
22
23#include <linux/types.h>
24
25struct kvm_regs {
26 __u64 pc;
27 __u64 cr;
28 __u64 ctr;
29 __u64 lr;
30 __u64 xer;
31 __u64 msr;
32 __u64 srr0;
33 __u64 srr1;
34 __u64 pid;
35
36 __u64 sprg0;
37 __u64 sprg1;
38 __u64 sprg2;
39 __u64 sprg3;
40 __u64 sprg4;
41 __u64 sprg5;
42 __u64 sprg6;
43 __u64 sprg7;
44
45 __u64 gpr[32];
46};
47
48#define KVM_SREGS_E_IMPL_NONE 0
49#define KVM_SREGS_E_IMPL_FSL 1
50
51#define KVM_SREGS_E_FSL_PIDn (1 << 0) /* PID1/PID2 */
52
53/*
54 * Feature bits indicate which sections of the sregs struct are valid,
55 * both in KVM_GET_SREGS and KVM_SET_SREGS. On KVM_SET_SREGS, registers
56 * corresponding to unset feature bits will not be modified. This allows
57 * restoring a checkpoint made without that feature, while keeping the
58 * default values of the new registers.
59 *
60 * KVM_SREGS_E_BASE contains:
61 * CSRR0/1 (refers to SRR2/3 on 40x)
62 * ESR
63 * DEAR
64 * MCSR
65 * TSR
66 * TCR
67 * DEC
68 * TB
69 * VRSAVE (USPRG0)
70 */
71#define KVM_SREGS_E_BASE (1 << 0)
72
73/*
74 * KVM_SREGS_E_ARCH206 contains:
75 *
76 * PIR
77 * MCSRR0/1
78 * DECAR
79 * IVPR
80 */
81#define KVM_SREGS_E_ARCH206 (1 << 1)
82
83/*
84 * Contains EPCR, plus the upper half of 64-bit registers
85 * that are 32-bit on 32-bit implementations.
86 */
87#define KVM_SREGS_E_64 (1 << 2)
88
89#define KVM_SREGS_E_SPRG8 (1 << 3)
90#define KVM_SREGS_E_MCIVPR (1 << 4)
91
92/*
93 * IVORs are used -- contains IVOR0-15, plus additional IVORs
94 * in combination with an appropriate feature bit.
95 */
96#define KVM_SREGS_E_IVOR (1 << 5)
97
98/*
99 * Contains MAS0-4, MAS6-7, TLBnCFG, MMUCFG.
100 * Also TLBnPS if MMUCFG[MAVN] = 1.
101 */
102#define KVM_SREGS_E_ARCH206_MMU (1 << 6)
103
104/* DBSR, DBCR, IAC, DAC, DVC */
105#define KVM_SREGS_E_DEBUG (1 << 7)
106
107/* Enhanced debug -- DSRR0/1, SPRG9 */
108#define KVM_SREGS_E_ED (1 << 8)
109
110/* Embedded Floating Point (SPE) -- IVOR32-34 if KVM_SREGS_E_IVOR */
111#define KVM_SREGS_E_SPE (1 << 9)
112
113/* External Proxy (EXP) -- EPR */
114#define KVM_SREGS_EXP (1 << 10)
115
116/* External PID (E.PD) -- EPSC/EPLC */
117#define KVM_SREGS_E_PD (1 << 11)
118
119/* Processor Control (E.PC) -- IVOR36-37 if KVM_SREGS_E_IVOR */
120#define KVM_SREGS_E_PC (1 << 12)
121
122/* Page table (E.PT) -- EPTCFG */
123#define KVM_SREGS_E_PT (1 << 13)
124
125/* Embedded Performance Monitor (E.PM) -- IVOR35 if KVM_SREGS_E_IVOR */
126#define KVM_SREGS_E_PM (1 << 14)
127
128/*
129 * Special updates:
130 *
131 * Some registers may change even while a vcpu is not running.
132 * To avoid losing these changes, by default these registers are
133 * not updated by KVM_SET_SREGS. To force an update, set the bit
134 * in u.e.update_special corresponding to the register to be updated.
135 *
136 * The update_special field is zero on return from KVM_GET_SREGS.
137 *
138 * When restoring a checkpoint, the caller can set update_special
139 * to 0xffffffff to ensure that everything is restored, even new features
140 * that the caller doesn't know about.
141 */
142#define KVM_SREGS_E_UPDATE_MCSR (1 << 0)
143#define KVM_SREGS_E_UPDATE_TSR (1 << 1)
144#define KVM_SREGS_E_UPDATE_DEC (1 << 2)
145#define KVM_SREGS_E_UPDATE_DBSR (1 << 3)
146
147/*
148 * In KVM_SET_SREGS, reserved/pad fields must be left untouched from a
149 * previous KVM_GET_REGS.
150 *
151 * Unless otherwise indicated, setting any register with KVM_SET_SREGS
152 * directly sets its value. It does not trigger any special semantics such
153 * as write-one-to-clear. Calling KVM_SET_SREGS on an unmodified struct
154 * just received from KVM_GET_SREGS is always a no-op.
155 */
156struct kvm_sregs {
157 __u32 pvr;
158 union {
159 struct {
160 __u64 sdr1;
161 struct {
162 struct {
163 __u64 slbe;
164 __u64 slbv;
165 } slb[64];
166 } ppc64;
167 struct {
168 __u32 sr[16];
169 __u64 ibat[8];
170 __u64 dbat[8];
171 } ppc32;
172 } s;
173 struct {
174 union {
175 struct { /* KVM_SREGS_E_IMPL_FSL */
176 __u32 features; /* KVM_SREGS_E_FSL_ */
177 __u32 svr;
178 __u64 mcar;
179 __u32 hid0;
180
181 /* KVM_SREGS_E_FSL_PIDn */
182 __u32 pid1, pid2;
183 } fsl;
184 __u8 pad[256];
185 } impl;
186
187 __u32 features; /* KVM_SREGS_E_ */
188 __u32 impl_id; /* KVM_SREGS_E_IMPL_ */
189 __u32 update_special; /* KVM_SREGS_E_UPDATE_ */
190 __u32 pir; /* read-only */
191 __u64 sprg8;
192 __u64 sprg9; /* E.ED */
193 __u64 csrr0;
194 __u64 dsrr0; /* E.ED */
195 __u64 mcsrr0;
196 __u32 csrr1;
197 __u32 dsrr1; /* E.ED */
198 __u32 mcsrr1;
199 __u32 esr;
200 __u64 dear;
201 __u64 ivpr;
202 __u64 mcivpr;
203 __u64 mcsr; /* KVM_SREGS_E_UPDATE_MCSR */
204
205 __u32 tsr; /* KVM_SREGS_E_UPDATE_TSR */
206 __u32 tcr;
207 __u32 decar;
208 __u32 dec; /* KVM_SREGS_E_UPDATE_DEC */
209
210 /*
211 * Userspace can read TB directly, but the
212 * value reported here is consistent with "dec".
213 *
214 * Read-only.
215 */
216 __u64 tb;
217
218 __u32 dbsr; /* KVM_SREGS_E_UPDATE_DBSR */
219 __u32 dbcr[3];
220 __u32 iac[4];
221 __u32 dac[2];
222 __u32 dvc[2];
223 __u8 num_iac; /* read-only */
224 __u8 num_dac; /* read-only */
225 __u8 num_dvc; /* read-only */
226 __u8 pad;
227
228 __u32 epr; /* EXP */
229 __u32 vrsave; /* a.k.a. USPRG0 */
230 __u32 epcr; /* KVM_SREGS_E_64 */
231
232 __u32 mas0;
233 __u32 mas1;
234 __u64 mas2;
235 __u64 mas7_3;
236 __u32 mas4;
237 __u32 mas6;
238
239 __u32 ivor_low[16]; /* IVOR0-15 */
240 __u32 ivor_high[18]; /* IVOR32+, plus room to expand */
241
242 __u32 mmucfg; /* read-only */
243 __u32 eptcfg; /* E.PT, read-only */
244 __u32 tlbcfg[4];/* read-only */
245 __u32 tlbps[4]; /* read-only */
246
247 __u32 eplc, epsc; /* E.PD */
248 } e;
249 __u8 pad[1020];
250 } u;
251};
252
253struct kvm_fpu {
254 __u64 fpr[32];
255};
256
257struct kvm_debug_exit_arch {
258};
259
260/* for KVM_SET_GUEST_DEBUG */
261struct kvm_guest_debug_arch {
262};
263
264#define KVM_REG_MASK 0x001f
265#define KVM_REG_EXT_MASK 0xffe0
266#define KVM_REG_GPR 0x0000
267#define KVM_REG_FPR 0x0020
268#define KVM_REG_QPR 0x0040
269#define KVM_REG_FQPR 0x0060
270
271#define KVM_INTERRUPT_SET -1U
272#define KVM_INTERRUPT_UNSET -2U
273#define KVM_INTERRUPT_SET_LEVEL -3U
274
275#endif /* __LINUX_KVM_POWERPC_H */