[mirror_ubuntu-bionic-kernel.git] / arch / powerpc / include / asm / kvm.h

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright IBM Corp. 2007
 *
 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
 */

#ifndef __LINUX_KVM_POWERPC_H
#define __LINUX_KVM_POWERPC_H

#include <linux/types.h>

/* Select powerpc specific features in <linux/kvm.h> */
#define __KVM_HAVE_SPAPR_TCE

struct kvm_regs {
	__u64 pc;
	__u64 cr;
	__u64 ctr;
	__u64 lr;
	__u64 xer;
	__u64 msr;
	__u64 srr0;
	__u64 srr1;
	__u64 pid;

	__u64 sprg0;
	__u64 sprg1;
	__u64 sprg2;
	__u64 sprg3;
	__u64 sprg4;
	__u64 sprg5;
	__u64 sprg6;
	__u64 sprg7;

	__u64 gpr[32];
};

#define KVM_SREGS_E_IMPL_NONE	0
#define KVM_SREGS_E_IMPL_FSL	1

#define KVM_SREGS_E_FSL_PIDn	(1 << 0) /* PID1/PID2 */

/*
 * Feature bits indicate which sections of the sregs struct are valid,
 * both in KVM_GET_SREGS and KVM_SET_SREGS.  On KVM_SET_SREGS, registers
 * corresponding to unset feature bits will not be modified.  This allows
 * restoring a checkpoint made without that feature, while keeping the
 * default values of the new registers.
 *
 * KVM_SREGS_E_BASE contains:
 * CSRR0/1 (refers to SRR2/3 on 40x)
 * ESR
 * DEAR
 * MCSR
 * TSR
 * TCR
 * DEC
 * TB
 * VRSAVE (USPRG0)
 */
#define KVM_SREGS_E_BASE		(1 << 0)

/*
 * KVM_SREGS_E_ARCH206 contains:
 *
 * PIR
 * MCSRR0/1
 * DECAR
 * IVPR
 */
#define KVM_SREGS_E_ARCH206		(1 << 1)

/*
 * Contains EPCR, plus the upper half of 64-bit registers
 * that are 32-bit on 32-bit implementations.
 */
#define KVM_SREGS_E_64			(1 << 2)

#define KVM_SREGS_E_SPRG8		(1 << 3)
#define KVM_SREGS_E_MCIVPR		(1 << 4)

/*
 * IVORs are used -- contains IVOR0-15, plus additional IVORs
 * in combination with an appropriate feature bit.
 */
#define KVM_SREGS_E_IVOR		(1 << 5)

/*
 * Contains MAS0-4, MAS6-7, TLBnCFG, MMUCFG.
 * Also TLBnPS if MMUCFG[MAVN] = 1.
 */
#define KVM_SREGS_E_ARCH206_MMU		(1 << 6)

/* DBSR, DBCR, IAC, DAC, DVC */
#define KVM_SREGS_E_DEBUG		(1 << 7)

/* Enhanced debug -- DSRR0/1, SPRG9 */
#define KVM_SREGS_E_ED			(1 << 8)

/* Embedded Floating Point (SPE) -- IVOR32-34 if KVM_SREGS_E_IVOR */
#define KVM_SREGS_E_SPE			(1 << 9)

/* External Proxy (EXP) -- EPR */
#define KVM_SREGS_EXP			(1 << 10)

/* External PID (E.PD) -- EPSC/EPLC */
#define KVM_SREGS_E_PD			(1 << 11)

/* Processor Control (E.PC) -- IVOR36-37 if KVM_SREGS_E_IVOR */
#define KVM_SREGS_E_PC			(1 << 12)

/* Page table (E.PT) -- EPTCFG */
#define KVM_SREGS_E_PT			(1 << 13)

/* Embedded Performance Monitor (E.PM) -- IVOR35 if KVM_SREGS_E_IVOR */
#define KVM_SREGS_E_PM			(1 << 14)

/*
 * Special updates:
 *
 * Some registers may change even while a vcpu is not running.
 * To avoid losing these changes, by default these registers are
 * not updated by KVM_SET_SREGS.  To force an update, set the bit
 * in u.e.update_special corresponding to the register to be updated.
 *
 * The update_special field is zero on return from KVM_GET_SREGS.
 *
 * When restoring a checkpoint, the caller can set update_special
 * to 0xffffffff to ensure that everything is restored, even new features
 * that the caller doesn't know about.
 */
#define KVM_SREGS_E_UPDATE_MCSR		(1 << 0)
#define KVM_SREGS_E_UPDATE_TSR		(1 << 1)
#define KVM_SREGS_E_UPDATE_DEC		(1 << 2)
#define KVM_SREGS_E_UPDATE_DBSR		(1 << 3)

/*
 * In KVM_SET_SREGS, reserved/pad fields must be left untouched from a
 * previous KVM_GET_REGS.
 *
 * Unless otherwise indicated, setting any register with KVM_SET_SREGS
 * directly sets its value.  It does not trigger any special semantics such
 * as write-one-to-clear.  Calling KVM_SET_SREGS on an unmodified struct
 * just received from KVM_GET_SREGS is always a no-op.
 */
struct kvm_sregs {
	__u32 pvr;
	union {
		struct {
			__u64 sdr1;
			struct {
				struct {
					__u64 slbe;
					__u64 slbv;
				} slb[64];
			} ppc64;
			struct {
				__u32 sr[16];
				__u64 ibat[8]; 
				__u64 dbat[8]; 
			} ppc32;
		} s;
		struct {
			union {
				struct { /* KVM_SREGS_E_IMPL_FSL */
					__u32 features; /* KVM_SREGS_E_FSL_ */
					__u32 svr;
					__u64 mcar;
					__u32 hid0;

					/* KVM_SREGS_E_FSL_PIDn */
					__u32 pid1, pid2;
				} fsl;
				__u8 pad[256];
			} impl;

			__u32 features; /* KVM_SREGS_E_ */
			__u32 impl_id;	/* KVM_SREGS_E_IMPL_ */
			__u32 update_special; /* KVM_SREGS_E_UPDATE_ */
			__u32 pir;	/* read-only */
			__u64 sprg8;
			__u64 sprg9;	/* E.ED */
			__u64 csrr0;
			__u64 dsrr0;	/* E.ED */
			__u64 mcsrr0;
			__u32 csrr1;
			__u32 dsrr1;	/* E.ED */
			__u32 mcsrr1;
			__u32 esr;
			__u64 dear;
			__u64 ivpr;
			__u64 mcivpr;
			__u64 mcsr;	/* KVM_SREGS_E_UPDATE_MCSR */

			__u32 tsr;	/* KVM_SREGS_E_UPDATE_TSR */
			__u32 tcr;
			__u32 decar;
			__u32 dec;	/* KVM_SREGS_E_UPDATE_DEC */

			/*
			 * Userspace can read TB directly, but the
			 * value reported here is consistent with "dec".
			 *
			 * Read-only.
			 */
			__u64 tb;

			__u32 dbsr;	/* KVM_SREGS_E_UPDATE_DBSR */
			__u32 dbcr[3];
			__u32 iac[4];
			__u32 dac[2];
			__u32 dvc[2];
			__u8 num_iac;	/* read-only */
			__u8 num_dac;	/* read-only */
			__u8 num_dvc;	/* read-only */
			__u8 pad;

			__u32 epr;	/* EXP */
			__u32 vrsave;	/* a.k.a. USPRG0 */
			__u32 epcr;	/* KVM_SREGS_E_64 */

			__u32 mas0;
			__u32 mas1;
			__u64 mas2;
			__u64 mas7_3;
			__u32 mas4;
			__u32 mas6;

			__u32 ivor_low[16]; /* IVOR0-15 */
			__u32 ivor_high[18]; /* IVOR32+, plus room to expand */

			__u32 mmucfg;	/* read-only */
			__u32 eptcfg;	/* E.PT, read-only */
			__u32 tlbcfg[4];/* read-only */
			__u32 tlbps[4]; /* read-only */

			__u32 eplc, epsc; /* E.PD */
		} e;
		__u8 pad[1020];
	} u;
};

struct kvm_fpu {
	__u64 fpr[32];
};

struct kvm_debug_exit_arch {
};

/* for KVM_SET_GUEST_DEBUG */
struct kvm_guest_debug_arch {
};

#define KVM_REG_MASK		0x001f
#define KVM_REG_EXT_MASK	0xffe0
#define KVM_REG_GPR		0x0000
#define KVM_REG_FPR		0x0020
#define KVM_REG_QPR		0x0040
#define KVM_REG_FQPR		0x0060

#define KVM_INTERRUPT_SET	-1U
#define KVM_INTERRUPT_UNSET	-2U
#define KVM_INTERRUPT_SET_LEVEL	-3U

/* for KVM_CAP_SPAPR_TCE */
struct kvm_create_spapr_tce {
	__u64 liobn;
	__u32 window_size;
};

#endif /* __LINUX_KVM_POWERPC_H */
Commit	Line	Data
bbf45ba5 HB	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
dd135ebb CB	20	#ifndef __LINUX_KVM_POWERPC_H
	21	#define __LINUX_KVM_POWERPC_H
	22
9f2cd967	23	#include <linux/types.h>
bbf45ba5	24
54738c09 DG	25	/* Select powerpc specific features in <linux/kvm.h> */
	26	#define __KVM_HAVE_SPAPR_TCE
	27
bbf45ba5 HB	28	struct kvm_regs {
	29	__u64 pc;
	30	__u64 cr;
	31	__u64 ctr;
	32	__u64 lr;
	33	__u64 xer;
	34	__u64 msr;
	35	__u64 srr0;
	36	__u64 srr1;
	37	__u64 pid;
	38
	39	__u64 sprg0;
	40	__u64 sprg1;
	41	__u64 sprg2;
	42	__u64 sprg3;
	43	__u64 sprg4;
	44	__u64 sprg5;
	45	__u64 sprg6;
	46	__u64 sprg7;
	47
	48	__u64 gpr[32];
	49	};
	50
5ce941ee SW	51	#define KVM_SREGS_E_IMPL_NONE 0
	52	#define KVM_SREGS_E_IMPL_FSL 1
	53
	54	#define KVM_SREGS_E_FSL_PIDn (1 << 0) /* PID1/PID2 */
	55
	56	/*
	57	* Feature bits indicate which sections of the sregs struct are valid,
	58	* both in KVM_GET_SREGS and KVM_SET_SREGS. On KVM_SET_SREGS, registers
	59	* corresponding to unset feature bits will not be modified. This allows
	60	* restoring a checkpoint made without that feature, while keeping the
	61	* default values of the new registers.
	62	*
	63	* KVM_SREGS_E_BASE contains:
	64	* CSRR0/1 (refers to SRR2/3 on 40x)
	65	* ESR
	66	* DEAR
	67	* MCSR
	68	* TSR
	69	* TCR
	70	* DEC
	71	* TB
	72	* VRSAVE (USPRG0)
	73	*/
	74	#define KVM_SREGS_E_BASE (1 << 0)
	75
	76	/*
	77	* KVM_SREGS_E_ARCH206 contains:
	78	*
	79	* PIR
	80	* MCSRR0/1
	81	* DECAR
	82	* IVPR
	83	*/
	84	#define KVM_SREGS_E_ARCH206 (1 << 1)
	85
	86	/*
	87	* Contains EPCR, plus the upper half of 64-bit registers
	88	* that are 32-bit on 32-bit implementations.
	89	*/
	90	#define KVM_SREGS_E_64 (1 << 2)
	91
	92	#define KVM_SREGS_E_SPRG8 (1 << 3)
	93	#define KVM_SREGS_E_MCIVPR (1 << 4)
	94
	95	/*
	96	* IVORs are used -- contains IVOR0-15, plus additional IVORs
	97	* in combination with an appropriate feature bit.
	98	*/
	99	#define KVM_SREGS_E_IVOR (1 << 5)
	100
	101	/*
	102	* Contains MAS0-4, MAS6-7, TLBnCFG, MMUCFG.
	103	* Also TLBnPS if MMUCFG[MAVN] = 1.
	104	*/
	105	#define KVM_SREGS_E_ARCH206_MMU (1 << 6)
	106
	107	/* DBSR, DBCR, IAC, DAC, DVC */
	108	#define KVM_SREGS_E_DEBUG (1 << 7)
	109
	110	/* Enhanced debug -- DSRR0/1, SPRG9 */
	111	#define KVM_SREGS_E_ED (1 << 8)
	112
	113	/* Embedded Floating Point (SPE) -- IVOR32-34 if KVM_SREGS_E_IVOR */
	114	#define KVM_SREGS_E_SPE (1 << 9)
115
116	/* External Proxy (EXP) -- EPR */
117	#define KVM_SREGS_EXP (1 << 10)
118
119	/* External PID (E.PD) -- EPSC/EPLC */
120	#define KVM_SREGS_E_PD (1 << 11)
121
122	/* Processor Control (E.PC) -- IVOR36-37 if KVM_SREGS_E_IVOR */
123	#define KVM_SREGS_E_PC (1 << 12)
124
125	/* Page table (E.PT) -- EPTCFG */
126	#define KVM_SREGS_E_PT (1 << 13)
127
128	/* Embedded Performance Monitor (E.PM) -- IVOR35 if KVM_SREGS_E_IVOR */
129	#define KVM_SREGS_E_PM (1 << 14)
130
131	/*
132	* Special updates:
133	*
134	* Some registers may change even while a vcpu is not running.
135	* To avoid losing these changes, by default these registers are
136	* not updated by KVM_SET_SREGS. To force an update, set the bit
137	* in u.e.update_special corresponding to the register to be updated.
138	*
139	* The update_special field is zero on return from KVM_GET_SREGS.
140	*
141	* When restoring a checkpoint, the caller can set update_special
142	* to 0xffffffff to ensure that everything is restored, even new features
143	* that the caller doesn't know about.
144	*/
145	#define KVM_SREGS_E_UPDATE_MCSR (1 << 0)
146	#define KVM_SREGS_E_UPDATE_TSR (1 << 1)
147	#define KVM_SREGS_E_UPDATE_DEC (1 << 2)
148	#define KVM_SREGS_E_UPDATE_DBSR (1 << 3)
149
150	/*
151	* In KVM_SET_SREGS, reserved/pad fields must be left untouched from a
152	* previous KVM_GET_REGS.
153	*
154	* Unless otherwise indicated, setting any register with KVM_SET_SREGS
155	* directly sets its value. It does not trigger any special semantics such
156	* as write-one-to-clear. Calling KVM_SET_SREGS on an unmodified struct
157	* just received from KVM_GET_SREGS is always a no-op.
158	*/
bbf45ba5	159	struct kvm_sregs {
ec3c11aa	160	__u32 pvr;
e15a1137 AG	161	union {
	162	struct {
	163	__u64 sdr1;
	164	struct {
	165	struct {
	166	__u64 slbe;
	167	__u64 slbv;
	168	} slb[64];
	169	} ppc64;
	170	struct {
	171	__u32 sr[16];
	172	__u64 ibat[8];
	173	__u64 dbat[8];
	174	} ppc32;
	175	} s;
5ce941ee SW	176	struct {
	177	union {
	178	struct { /* KVM_SREGS_E_IMPL_FSL */
	179	__u32 features; /* KVM_SREGS_E_FSL_ */
	180	__u32 svr;
	181	__u64 mcar;
	182	__u32 hid0;
	183
	184	/* KVM_SREGS_E_FSL_PIDn */
	185	__u32 pid1, pid2;
	186	} fsl;
	187	__u8 pad[256];
	188	} impl;
	189
	190	__u32 features; /* KVM_SREGS_E_ */
	191	__u32 impl_id; /* KVM_SREGS_E_IMPL_ */
	192	__u32 update_special; /* KVM_SREGS_E_UPDATE_ */
	193	__u32 pir; /* read-only */
	194	__u64 sprg8;
	195	__u64 sprg9; /* E.ED */
	196	__u64 csrr0;
	197	__u64 dsrr0; /* E.ED */
	198	__u64 mcsrr0;
	199	__u32 csrr1;
	200	__u32 dsrr1; /* E.ED */
	201	__u32 mcsrr1;
	202	__u32 esr;
	203	__u64 dear;
	204	__u64 ivpr;
	205	__u64 mcivpr;
	206	__u64 mcsr; /* KVM_SREGS_E_UPDATE_MCSR */
	207
	208	__u32 tsr; /* KVM_SREGS_E_UPDATE_TSR */
	209	__u32 tcr;
	210	__u32 decar;
	211	__u32 dec; /* KVM_SREGS_E_UPDATE_DEC */
	212
	213	/*
	214	* Userspace can read TB directly, but the
	215	* value reported here is consistent with "dec".
	216	*
	217	* Read-only.
	218	*/
	219	__u64 tb;
	220
	221	__u32 dbsr; /* KVM_SREGS_E_UPDATE_DBSR */
	222	__u32 dbcr[3];
	223	__u32 iac[4];
	224	__u32 dac[2];
	225	__u32 dvc[2];
	226	__u8 num_iac; /* read-only */
	227	__u8 num_dac; /* read-only */
	228	__u8 num_dvc; /* read-only */
	229	__u8 pad;
	230
	231	__u32 epr; /* EXP */
	232	__u32 vrsave; /* a.k.a. USPRG0 */
	233	__u32 epcr; /* KVM_SREGS_E_64 */
	234
	235	__u32 mas0;
	236	__u32 mas1;
	237	__u64 mas2;
	238	__u64 mas7_3;
	239	__u32 mas4;
240	__u32 mas6;
241
242	__u32 ivor_low[16]; /* IVOR0-15 */
243	__u32 ivor_high[18]; /* IVOR32+, plus room to expand */
244
245	__u32 mmucfg; /* read-only */
246	__u32 eptcfg; /* E.PT, read-only */
247	__u32 tlbcfg[4];/* read-only */
248	__u32 tlbps[4]; /* read-only */
249
250	__u32 eplc, epsc; /* E.PD */
251	} e;
e15a1137 AG	252	__u8 pad[1020];
e15a1137 AG	253	} u;
bbf45ba5 HB	254	};
	255
	256	struct kvm_fpu {
	257	__u64 fpr[32];
	258	};
dd135ebb	259
d0bfb940 JK	260	struct kvm_debug_exit_arch {
	261	};
	262
	263	/* for KVM_SET_GUEST_DEBUG */
	264	struct kvm_guest_debug_arch {
	265	};
	266
b104d066 AG	267	#define KVM_REG_MASK 0x001f
	268	#define KVM_REG_EXT_MASK 0xffe0
	269	#define KVM_REG_GPR 0x0000
	270	#define KVM_REG_FPR 0x0020
	271	#define KVM_REG_QPR 0x0040
	272	#define KVM_REG_FQPR 0x0060
	273
18978768 AG	274	#define KVM_INTERRUPT_SET -1U
18978768 AG	275	#define KVM_INTERRUPT_UNSET -2U
17bd1580	276	#define KVM_INTERRUPT_SET_LEVEL -3U
18978768	277
54738c09 DG	278	/* for KVM_CAP_SPAPR_TCE */
	279	struct kvm_create_spapr_tce {
	280	__u64 liobn;
	281	__u32 window_size;
	282	};
	283
bbf45ba5	284	#endif /* __LINUX_KVM_POWERPC_H */