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1.1 root 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 <[email protected]>
18: */
19:
20: #ifndef __LINUX_KVM_POWERPC_H
21: #define __LINUX_KVM_POWERPC_H
22:
23: #include <linux/types.h>
24:
25: struct 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: */
156: struct 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:
253: struct kvm_fpu {
254: __u64 fpr[32];
255: };
256:
257: struct kvm_debug_exit_arch {
258: };
259:
260: /* for KVM_SET_GUEST_DEBUG */
261: struct 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 */
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