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authorOlof Johansson <olof@lixom.net>2013-02-11 12:02:53 -0500
committerOlof Johansson <olof@lixom.net>2013-02-11 12:02:53 -0500
commit655e194cfee8ba89634228f97f1310df41b45cbb (patch)
tree85989f9f14ad53a3797ab5c70093a8181399e669 /arch/arm/include
parent1e044f0490c9d9f26ebcdd3dc63e02790b798821 (diff)
parentda141b67d29a05267a9a0d56bd7856b7f3f58d44 (diff)
Merge branch 'for-rmk/virt/kvm/core' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into next/virt
* 'for-rmk/virt/kvm/core' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux: KVM: ARM: Add maintainer entry for KVM/ARM KVM: ARM: Power State Coordination Interface implementation KVM: ARM: Handle I/O aborts KVM: ARM: Handle guest faults in KVM KVM: ARM: VFP userspace interface KVM: ARM: Demux CCSIDR in the userspace API KVM: ARM: User space API for getting/setting co-proc registers KVM: ARM: Emulation framework and CP15 emulation KVM: ARM: World-switch implementation KVM: ARM: Inject IRQs and FIQs from userspace KVM: ARM: Memory virtualization setup KVM: ARM: Hypervisor initialization KVM: ARM: Initial skeleton to compile KVM support ARM: Section based HYP idmap ARM: Add page table and page defines needed by KVM
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/idmap.h1
-rw-r--r--arch/arm/include/asm/kvm_arm.h214
-rw-r--r--arch/arm/include/asm/kvm_asm.h82
-rw-r--r--arch/arm/include/asm/kvm_coproc.h47
-rw-r--r--arch/arm/include/asm/kvm_emulate.h72
-rw-r--r--arch/arm/include/asm/kvm_host.h161
-rw-r--r--arch/arm/include/asm/kvm_mmio.h56
-rw-r--r--arch/arm/include/asm/kvm_mmu.h50
-rw-r--r--arch/arm/include/asm/kvm_psci.h23
-rw-r--r--arch/arm/include/asm/pgtable-3level-hwdef.h5
-rw-r--r--arch/arm/include/asm/pgtable-3level.h18
-rw-r--r--arch/arm/include/asm/pgtable.h7
-rw-r--r--arch/arm/include/uapi/asm/kvm.h164
13 files changed, 900 insertions, 0 deletions
diff --git a/arch/arm/include/asm/idmap.h b/arch/arm/include/asm/idmap.h
index bf863edb517d..1a66f907e5cc 100644
--- a/arch/arm/include/asm/idmap.h
+++ b/arch/arm/include/asm/idmap.h
@@ -8,6 +8,7 @@
8#define __idmap __section(.idmap.text) noinline notrace 8#define __idmap __section(.idmap.text) noinline notrace
9 9
10extern pgd_t *idmap_pgd; 10extern pgd_t *idmap_pgd;
11extern pgd_t *hyp_pgd;
11 12
12void setup_mm_for_reboot(void); 13void setup_mm_for_reboot(void);
13 14
diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h
new file mode 100644
index 000000000000..7c3d813e15df
--- /dev/null
+++ b/arch/arm/include/asm/kvm_arm.h
@@ -0,0 +1,214 @@
1/*
2 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
3 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2, as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19#ifndef __ARM_KVM_ARM_H__
20#define __ARM_KVM_ARM_H__
21
22#include <linux/types.h>
23
24/* Hyp Configuration Register (HCR) bits */
25#define HCR_TGE (1 << 27)
26#define HCR_TVM (1 << 26)
27#define HCR_TTLB (1 << 25)
28#define HCR_TPU (1 << 24)
29#define HCR_TPC (1 << 23)
30#define HCR_TSW (1 << 22)
31#define HCR_TAC (1 << 21)
32#define HCR_TIDCP (1 << 20)
33#define HCR_TSC (1 << 19)
34#define HCR_TID3 (1 << 18)
35#define HCR_TID2 (1 << 17)
36#define HCR_TID1 (1 << 16)
37#define HCR_TID0 (1 << 15)
38#define HCR_TWE (1 << 14)
39#define HCR_TWI (1 << 13)
40#define HCR_DC (1 << 12)
41#define HCR_BSU (3 << 10)
42#define HCR_BSU_IS (1 << 10)
43#define HCR_FB (1 << 9)
44#define HCR_VA (1 << 8)
45#define HCR_VI (1 << 7)
46#define HCR_VF (1 << 6)
47#define HCR_AMO (1 << 5)
48#define HCR_IMO (1 << 4)
49#define HCR_FMO (1 << 3)
50#define HCR_PTW (1 << 2)
51#define HCR_SWIO (1 << 1)
52#define HCR_VM 1
53
54/*
55 * The bits we set in HCR:
56 * TAC: Trap ACTLR
57 * TSC: Trap SMC
58 * TSW: Trap cache operations by set/way
59 * TWI: Trap WFI
60 * TIDCP: Trap L2CTLR/L2ECTLR
61 * BSU_IS: Upgrade barriers to the inner shareable domain
62 * FB: Force broadcast of all maintainance operations
63 * AMO: Override CPSR.A and enable signaling with VA
64 * IMO: Override CPSR.I and enable signaling with VI
65 * FMO: Override CPSR.F and enable signaling with VF
66 * SWIO: Turn set/way invalidates into set/way clean+invalidate
67 */
68#define HCR_GUEST_MASK (HCR_TSC | HCR_TSW | HCR_TWI | HCR_VM | HCR_BSU_IS | \
69 HCR_FB | HCR_TAC | HCR_AMO | HCR_IMO | HCR_FMO | \
70 HCR_SWIO | HCR_TIDCP)
71#define HCR_VIRT_EXCP_MASK (HCR_VA | HCR_VI | HCR_VF)
72
73/* System Control Register (SCTLR) bits */
74#define SCTLR_TE (1 << 30)
75#define SCTLR_EE (1 << 25)
76#define SCTLR_V (1 << 13)
77
78/* Hyp System Control Register (HSCTLR) bits */
79#define HSCTLR_TE (1 << 30)
80#define HSCTLR_EE (1 << 25)
81#define HSCTLR_FI (1 << 21)
82#define HSCTLR_WXN (1 << 19)
83#define HSCTLR_I (1 << 12)
84#define HSCTLR_C (1 << 2)
85#define HSCTLR_A (1 << 1)
86#define HSCTLR_M 1
87#define HSCTLR_MASK (HSCTLR_M | HSCTLR_A | HSCTLR_C | HSCTLR_I | \
88 HSCTLR_WXN | HSCTLR_FI | HSCTLR_EE | HSCTLR_TE)
89
90/* TTBCR and HTCR Registers bits */
91#define TTBCR_EAE (1 << 31)
92#define TTBCR_IMP (1 << 30)
93#define TTBCR_SH1 (3 << 28)
94#define TTBCR_ORGN1 (3 << 26)
95#define TTBCR_IRGN1 (3 << 24)
96#define TTBCR_EPD1 (1 << 23)
97#define TTBCR_A1 (1 << 22)
98#define TTBCR_T1SZ (3 << 16)
99#define TTBCR_SH0 (3 << 12)
100#define TTBCR_ORGN0 (3 << 10)
101#define TTBCR_IRGN0 (3 << 8)
102#define TTBCR_EPD0 (1 << 7)
103#define TTBCR_T0SZ 3
104#define HTCR_MASK (TTBCR_T0SZ | TTBCR_IRGN0 | TTBCR_ORGN0 | TTBCR_SH0)
105
106/* Hyp System Trap Register */
107#define HSTR_T(x) (1 << x)
108#define HSTR_TTEE (1 << 16)
109#define HSTR_TJDBX (1 << 17)
110
111/* Hyp Coprocessor Trap Register */
112#define HCPTR_TCP(x) (1 << x)
113#define HCPTR_TCP_MASK (0x3fff)
114#define HCPTR_TASE (1 << 15)
115#define HCPTR_TTA (1 << 20)
116#define HCPTR_TCPAC (1 << 31)
117
118/* Hyp Debug Configuration Register bits */
119#define HDCR_TDRA (1 << 11)
120#define HDCR_TDOSA (1 << 10)
121#define HDCR_TDA (1 << 9)
122#define HDCR_TDE (1 << 8)
123#define HDCR_HPME (1 << 7)
124#define HDCR_TPM (1 << 6)
125#define HDCR_TPMCR (1 << 5)
126#define HDCR_HPMN_MASK (0x1F)
127
128/*
129 * The architecture supports 40-bit IPA as input to the 2nd stage translations
130 * and PTRS_PER_S2_PGD becomes 1024, because each entry covers 1GB of address
131 * space.
132 */
133#define KVM_PHYS_SHIFT (40)
134#define KVM_PHYS_SIZE (1ULL << KVM_PHYS_SHIFT)
135#define KVM_PHYS_MASK (KVM_PHYS_SIZE - 1ULL)
136#define PTRS_PER_S2_PGD (1ULL << (KVM_PHYS_SHIFT - 30))
137#define S2_PGD_ORDER get_order(PTRS_PER_S2_PGD * sizeof(pgd_t))
138#define S2_PGD_SIZE (1 << S2_PGD_ORDER)
139
140/* Virtualization Translation Control Register (VTCR) bits */
141#define VTCR_SH0 (3 << 12)
142#define VTCR_ORGN0 (3 << 10)
143#define VTCR_IRGN0 (3 << 8)
144#define VTCR_SL0 (3 << 6)
145#define VTCR_S (1 << 4)
146#define VTCR_T0SZ (0xf)
147#define VTCR_MASK (VTCR_SH0 | VTCR_ORGN0 | VTCR_IRGN0 | VTCR_SL0 | \
148 VTCR_S | VTCR_T0SZ)
149#define VTCR_HTCR_SH (VTCR_SH0 | VTCR_ORGN0 | VTCR_IRGN0)
150#define VTCR_SL_L2 (0 << 6) /* Starting-level: 2 */
151#define VTCR_SL_L1 (1 << 6) /* Starting-level: 1 */
152#define KVM_VTCR_SL0 VTCR_SL_L1
153/* stage-2 input address range defined as 2^(32-T0SZ) */
154#define KVM_T0SZ (32 - KVM_PHYS_SHIFT)
155#define KVM_VTCR_T0SZ (KVM_T0SZ & VTCR_T0SZ)
156#define KVM_VTCR_S ((KVM_VTCR_T0SZ << 1) & VTCR_S)
157
158/* Virtualization Translation Table Base Register (VTTBR) bits */
159#if KVM_VTCR_SL0 == VTCR_SL_L2 /* see ARM DDI 0406C: B4-1720 */
160#define VTTBR_X (14 - KVM_T0SZ)
161#else
162#define VTTBR_X (5 - KVM_T0SZ)
163#endif
164#define VTTBR_BADDR_SHIFT (VTTBR_X - 1)
165#define VTTBR_BADDR_MASK (((1LLU << (40 - VTTBR_X)) - 1) << VTTBR_BADDR_SHIFT)
166#define VTTBR_VMID_SHIFT (48LLU)
167#define VTTBR_VMID_MASK (0xffLLU << VTTBR_VMID_SHIFT)
168
169/* Hyp Syndrome Register (HSR) bits */
170#define HSR_EC_SHIFT (26)
171#define HSR_EC (0x3fU << HSR_EC_SHIFT)
172#define HSR_IL (1U << 25)
173#define HSR_ISS (HSR_IL - 1)
174#define HSR_ISV_SHIFT (24)
175#define HSR_ISV (1U << HSR_ISV_SHIFT)
176#define HSR_SRT_SHIFT (16)
177#define HSR_SRT_MASK (0xf << HSR_SRT_SHIFT)
178#define HSR_FSC (0x3f)
179#define HSR_FSC_TYPE (0x3c)
180#define HSR_SSE (1 << 21)
181#define HSR_WNR (1 << 6)
182#define HSR_CV_SHIFT (24)
183#define HSR_CV (1U << HSR_CV_SHIFT)
184#define HSR_COND_SHIFT (20)
185#define HSR_COND (0xfU << HSR_COND_SHIFT)
186
187#define FSC_FAULT (0x04)
188#define FSC_PERM (0x0c)
189
190/* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */
191#define HPFAR_MASK (~0xf)
192
193#define HSR_EC_UNKNOWN (0x00)
194#define HSR_EC_WFI (0x01)
195#define HSR_EC_CP15_32 (0x03)
196#define HSR_EC_CP15_64 (0x04)
197#define HSR_EC_CP14_MR (0x05)
198#define HSR_EC_CP14_LS (0x06)
199#define HSR_EC_CP_0_13 (0x07)
200#define HSR_EC_CP10_ID (0x08)
201#define HSR_EC_JAZELLE (0x09)
202#define HSR_EC_BXJ (0x0A)
203#define HSR_EC_CP14_64 (0x0C)
204#define HSR_EC_SVC_HYP (0x11)
205#define HSR_EC_HVC (0x12)
206#define HSR_EC_SMC (0x13)
207#define HSR_EC_IABT (0x20)
208#define HSR_EC_IABT_HYP (0x21)
209#define HSR_EC_DABT (0x24)
210#define HSR_EC_DABT_HYP (0x25)
211
212#define HSR_HVC_IMM_MASK ((1UL << 16) - 1)
213
214#endif /* __ARM_KVM_ARM_H__ */
diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h
new file mode 100644
index 000000000000..5e06e8177784
--- /dev/null
+++ b/arch/arm/include/asm/kvm_asm.h
@@ -0,0 +1,82 @@
1/*
2 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
3 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2, as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19#ifndef __ARM_KVM_ASM_H__
20#define __ARM_KVM_ASM_H__
21
22/* 0 is reserved as an invalid value. */
23#define c0_MPIDR 1 /* MultiProcessor ID Register */
24#define c0_CSSELR 2 /* Cache Size Selection Register */
25#define c1_SCTLR 3 /* System Control Register */
26#define c1_ACTLR 4 /* Auxilliary Control Register */
27#define c1_CPACR 5 /* Coprocessor Access Control */
28#define c2_TTBR0 6 /* Translation Table Base Register 0 */
29#define c2_TTBR0_high 7 /* TTBR0 top 32 bits */
30#define c2_TTBR1 8 /* Translation Table Base Register 1 */
31#define c2_TTBR1_high 9 /* TTBR1 top 32 bits */
32#define c2_TTBCR 10 /* Translation Table Base Control R. */
33#define c3_DACR 11 /* Domain Access Control Register */
34#define c5_DFSR 12 /* Data Fault Status Register */
35#define c5_IFSR 13 /* Instruction Fault Status Register */
36#define c5_ADFSR 14 /* Auxilary Data Fault Status R */
37#define c5_AIFSR 15 /* Auxilary Instrunction Fault Status R */
38#define c6_DFAR 16 /* Data Fault Address Register */
39#define c6_IFAR 17 /* Instruction Fault Address Register */
40#define c9_L2CTLR 18 /* Cortex A15 L2 Control Register */
41#define c10_PRRR 19 /* Primary Region Remap Register */
42#define c10_NMRR 20 /* Normal Memory Remap Register */
43#define c12_VBAR 21 /* Vector Base Address Register */
44#define c13_CID 22 /* Context ID Register */
45#define c13_TID_URW 23 /* Thread ID, User R/W */
46#define c13_TID_URO 24 /* Thread ID, User R/O */
47#define c13_TID_PRIV 25 /* Thread ID, Privileged */
48#define NR_CP15_REGS 26 /* Number of regs (incl. invalid) */
49
50#define ARM_EXCEPTION_RESET 0
51#define ARM_EXCEPTION_UNDEFINED 1
52#define ARM_EXCEPTION_SOFTWARE 2
53#define ARM_EXCEPTION_PREF_ABORT 3
54#define ARM_EXCEPTION_DATA_ABORT 4
55#define ARM_EXCEPTION_IRQ 5
56#define ARM_EXCEPTION_FIQ 6
57#define ARM_EXCEPTION_HVC 7
58
59#ifndef __ASSEMBLY__
60struct kvm;
61struct kvm_vcpu;
62
63extern char __kvm_hyp_init[];
64extern char __kvm_hyp_init_end[];
65
66extern char __kvm_hyp_exit[];
67extern char __kvm_hyp_exit_end[];
68
69extern char __kvm_hyp_vector[];
70
71extern char __kvm_hyp_code_start[];
72extern char __kvm_hyp_code_end[];
73
74extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
75
76extern void __kvm_flush_vm_context(void);
77extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
78
79extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu);
80#endif
81
82#endif /* __ARM_KVM_ASM_H__ */
diff --git a/arch/arm/include/asm/kvm_coproc.h b/arch/arm/include/asm/kvm_coproc.h
new file mode 100644
index 000000000000..4917c2f7e459
--- /dev/null
+++ b/arch/arm/include/asm/kvm_coproc.h
@@ -0,0 +1,47 @@
1/*
2 * Copyright (C) 2012 Rusty Russell IBM Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License, version 2, as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16 */
17
18#ifndef __ARM_KVM_COPROC_H__
19#define __ARM_KVM_COPROC_H__
20#include <linux/kvm_host.h>
21
22void kvm_reset_coprocs(struct kvm_vcpu *vcpu);
23
24struct kvm_coproc_target_table {
25 unsigned target;
26 const struct coproc_reg *table;
27 size_t num;
28};
29void kvm_register_target_coproc_table(struct kvm_coproc_target_table *table);
30
31int kvm_handle_cp10_id(struct kvm_vcpu *vcpu, struct kvm_run *run);
32int kvm_handle_cp_0_13_access(struct kvm_vcpu *vcpu, struct kvm_run *run);
33int kvm_handle_cp14_load_store(struct kvm_vcpu *vcpu, struct kvm_run *run);
34int kvm_handle_cp14_access(struct kvm_vcpu *vcpu, struct kvm_run *run);
35int kvm_handle_cp15_32(struct kvm_vcpu *vcpu, struct kvm_run *run);
36int kvm_handle_cp15_64(struct kvm_vcpu *vcpu, struct kvm_run *run);
37
38unsigned long kvm_arm_num_guest_msrs(struct kvm_vcpu *vcpu);
39int kvm_arm_copy_msrindices(struct kvm_vcpu *vcpu, u64 __user *uindices);
40void kvm_coproc_table_init(void);
41
42struct kvm_one_reg;
43int kvm_arm_copy_coproc_indices(struct kvm_vcpu *vcpu, u64 __user *uindices);
44int kvm_arm_coproc_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *);
45int kvm_arm_coproc_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *);
46unsigned long kvm_arm_num_coproc_regs(struct kvm_vcpu *vcpu);
47#endif /* __ARM_KVM_COPROC_H__ */
diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h
new file mode 100644
index 000000000000..fd611996bfb5
--- /dev/null
+++ b/arch/arm/include/asm/kvm_emulate.h
@@ -0,0 +1,72 @@
1/*
2 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
3 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2, as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19#ifndef __ARM_KVM_EMULATE_H__
20#define __ARM_KVM_EMULATE_H__
21
22#include <linux/kvm_host.h>
23#include <asm/kvm_asm.h>
24#include <asm/kvm_mmio.h>
25
26u32 *vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num);
27u32 *vcpu_spsr(struct kvm_vcpu *vcpu);
28
29int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run);
30void kvm_skip_instr(struct kvm_vcpu *vcpu, bool is_wide_instr);
31void kvm_inject_undefined(struct kvm_vcpu *vcpu);
32void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr);
33void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr);
34
35static inline bool vcpu_mode_is_32bit(struct kvm_vcpu *vcpu)
36{
37 return 1;
38}
39
40static inline u32 *vcpu_pc(struct kvm_vcpu *vcpu)
41{
42 return (u32 *)&vcpu->arch.regs.usr_regs.ARM_pc;
43}
44
45static inline u32 *vcpu_cpsr(struct kvm_vcpu *vcpu)
46{
47 return (u32 *)&vcpu->arch.regs.usr_regs.ARM_cpsr;
48}
49
50static inline void vcpu_set_thumb(struct kvm_vcpu *vcpu)
51{
52 *vcpu_cpsr(vcpu) |= PSR_T_BIT;
53}
54
55static inline bool mode_has_spsr(struct kvm_vcpu *vcpu)
56{
57 unsigned long cpsr_mode = vcpu->arch.regs.usr_regs.ARM_cpsr & MODE_MASK;
58 return (cpsr_mode > USR_MODE && cpsr_mode < SYSTEM_MODE);
59}
60
61static inline bool vcpu_mode_priv(struct kvm_vcpu *vcpu)
62{
63 unsigned long cpsr_mode = vcpu->arch.regs.usr_regs.ARM_cpsr & MODE_MASK;
64 return cpsr_mode > USR_MODE;;
65}
66
67static inline bool kvm_vcpu_reg_is_pc(struct kvm_vcpu *vcpu, int reg)
68{
69 return reg == 15;
70}
71
72#endif /* __ARM_KVM_EMULATE_H__ */
diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
new file mode 100644
index 000000000000..98b4d1a72923
--- /dev/null
+++ b/arch/arm/include/asm/kvm_host.h
@@ -0,0 +1,161 @@
1/*
2 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
3 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2, as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19#ifndef __ARM_KVM_HOST_H__
20#define __ARM_KVM_HOST_H__
21
22#include <asm/kvm.h>
23#include <asm/kvm_asm.h>
24#include <asm/kvm_mmio.h>
25#include <asm/fpstate.h>
26
27#define KVM_MAX_VCPUS CONFIG_KVM_ARM_MAX_VCPUS
28#define KVM_MEMORY_SLOTS 32
29#define KVM_PRIVATE_MEM_SLOTS 4
30#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
31#define KVM_HAVE_ONE_REG
32
33#define KVM_VCPU_MAX_FEATURES 1
34
35/* We don't currently support large pages. */
36#define KVM_HPAGE_GFN_SHIFT(x) 0
37#define KVM_NR_PAGE_SIZES 1
38#define KVM_PAGES_PER_HPAGE(x) (1UL<<31)
39
40struct kvm_vcpu;
41u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode);
42int kvm_target_cpu(void);
43int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
44void kvm_reset_coprocs(struct kvm_vcpu *vcpu);
45
46struct kvm_arch {
47 /* VTTBR value associated with below pgd and vmid */
48 u64 vttbr;
49
50 /*
51 * Anything that is not used directly from assembly code goes
52 * here.
53 */
54
55 /* The VMID generation used for the virt. memory system */
56 u64 vmid_gen;
57 u32 vmid;
58
59 /* Stage-2 page table */
60 pgd_t *pgd;
61};
62
63#define KVM_NR_MEM_OBJS 40
64
65/*
66 * We don't want allocation failures within the mmu code, so we preallocate
67 * enough memory for a single page fault in a cache.
68 */
69struct kvm_mmu_memory_cache {
70 int nobjs;
71 void *objects[KVM_NR_MEM_OBJS];
72};
73
74struct kvm_vcpu_arch {
75 struct kvm_regs regs;
76
77 int target; /* Processor target */
78 DECLARE_BITMAP(features, KVM_VCPU_MAX_FEATURES);
79
80 /* System control coprocessor (cp15) */
81 u32 cp15[NR_CP15_REGS];
82
83 /* The CPU type we expose to the VM */
84 u32 midr;
85
86 /* Exception Information */
87 u32 hsr; /* Hyp Syndrome Register */
88 u32 hxfar; /* Hyp Data/Inst Fault Address Register */
89 u32 hpfar; /* Hyp IPA Fault Address Register */
90
91 /* Floating point registers (VFP and Advanced SIMD/NEON) */
92 struct vfp_hard_struct vfp_guest;
93 struct vfp_hard_struct *vfp_host;
94
95 /*
96 * Anything that is not used directly from assembly code goes
97 * here.
98 */
99 /* dcache set/way operation pending */
100 int last_pcpu;
101 cpumask_t require_dcache_flush;
102
103 /* Don't run the guest on this vcpu */
104 bool pause;
105
106 /* IO related fields */
107 struct kvm_decode mmio_decode;
108
109 /* Interrupt related fields */
110 u32 irq_lines; /* IRQ and FIQ levels */
111
112 /* Hyp exception information */
113 u32 hyp_pc; /* PC when exception was taken from Hyp mode */
114
115 /* Cache some mmu pages needed inside spinlock regions */
116 struct kvm_mmu_memory_cache mmu_page_cache;
117
118 /* Detect first run of a vcpu */
119 bool has_run_once;
120};
121
122struct kvm_vm_stat {
123 u32 remote_tlb_flush;
124};
125
126struct kvm_vcpu_stat {
127 u32 halt_wakeup;
128};
129
130struct kvm_vcpu_init;
131int kvm_vcpu_set_target(struct kvm_vcpu *vcpu,
132 const struct kvm_vcpu_init *init);
133unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
134int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
135struct kvm_one_reg;
136int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
137int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
138u64 kvm_call_hyp(void *hypfn, ...);
139void force_vm_exit(const cpumask_t *mask);
140
141#define KVM_ARCH_WANT_MMU_NOTIFIER
142struct kvm;
143int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
144int kvm_unmap_hva_range(struct kvm *kvm,
145 unsigned long start, unsigned long end);
146void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
147
148unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
149int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
150
151/* We do not have shadow page tables, hence the empty hooks */
152static inline int kvm_age_hva(struct kvm *kvm, unsigned long hva)
153{
154 return 0;
155}
156
157static inline int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
158{
159 return 0;
160}
161#endif /* __ARM_KVM_HOST_H__ */
diff --git a/arch/arm/include/asm/kvm_mmio.h b/arch/arm/include/asm/kvm_mmio.h
new file mode 100644
index 000000000000..adcc0d7d3175
--- /dev/null
+++ b/arch/arm/include/asm/kvm_mmio.h
@@ -0,0 +1,56 @@
1/*
2 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
3 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2, as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19#ifndef __ARM_KVM_MMIO_H__
20#define __ARM_KVM_MMIO_H__
21
22#include <linux/kvm_host.h>
23#include <asm/kvm_asm.h>
24#include <asm/kvm_arm.h>
25
26struct kvm_decode {
27 unsigned long rt;
28 bool sign_extend;
29};
30
31/*
32 * The in-kernel MMIO emulation code wants to use a copy of run->mmio,
33 * which is an anonymous type. Use our own type instead.
34 */
35struct kvm_exit_mmio {
36 phys_addr_t phys_addr;
37 u8 data[8];
38 u32 len;
39 bool is_write;
40};
41
42static inline void kvm_prepare_mmio(struct kvm_run *run,
43 struct kvm_exit_mmio *mmio)
44{
45 run->mmio.phys_addr = mmio->phys_addr;
46 run->mmio.len = mmio->len;
47 run->mmio.is_write = mmio->is_write;
48 memcpy(run->mmio.data, mmio->data, mmio->len);
49 run->exit_reason = KVM_EXIT_MMIO;
50}
51
52int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
53int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
54 phys_addr_t fault_ipa);
55
56#endif /* __ARM_KVM_MMIO_H__ */
diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
new file mode 100644
index 000000000000..421a20b34874
--- /dev/null
+++ b/arch/arm/include/asm/kvm_mmu.h
@@ -0,0 +1,50 @@
1/*
2 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
3 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2, as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19#ifndef __ARM_KVM_MMU_H__
20#define __ARM_KVM_MMU_H__
21
22int create_hyp_mappings(void *from, void *to);
23int create_hyp_io_mappings(void *from, void *to, phys_addr_t);
24void free_hyp_pmds(void);
25
26int kvm_alloc_stage2_pgd(struct kvm *kvm);
27void kvm_free_stage2_pgd(struct kvm *kvm);
28int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
29 phys_addr_t pa, unsigned long size);
30
31int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run);
32
33void kvm_mmu_free_memory_caches(struct kvm_vcpu *vcpu);
34
35phys_addr_t kvm_mmu_get_httbr(void);
36int kvm_mmu_init(void);
37void kvm_clear_hyp_idmap(void);
38
39static inline bool kvm_is_write_fault(unsigned long hsr)
40{
41 unsigned long hsr_ec = hsr >> HSR_EC_SHIFT;
42 if (hsr_ec == HSR_EC_IABT)
43 return false;
44 else if ((hsr & HSR_ISV) && !(hsr & HSR_WNR))
45 return false;
46 else
47 return true;
48}
49
50#endif /* __ARM_KVM_MMU_H__ */
diff --git a/arch/arm/include/asm/kvm_psci.h b/arch/arm/include/asm/kvm_psci.h
new file mode 100644
index 000000000000..9a83d98bf170
--- /dev/null
+++ b/arch/arm/include/asm/kvm_psci.h
@@ -0,0 +1,23 @@
1/*
2 * Copyright (C) 2012 - ARM Ltd
3 * Author: Marc Zyngier <marc.zyngier@arm.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18#ifndef __ARM_KVM_PSCI_H__
19#define __ARM_KVM_PSCI_H__
20
21bool kvm_psci_call(struct kvm_vcpu *vcpu);
22
23#endif /* __ARM_KVM_PSCI_H__ */
diff --git a/arch/arm/include/asm/pgtable-3level-hwdef.h b/arch/arm/include/asm/pgtable-3level-hwdef.h
index d7952824c5c4..18f5cef82ad5 100644
--- a/arch/arm/include/asm/pgtable-3level-hwdef.h
+++ b/arch/arm/include/asm/pgtable-3level-hwdef.h
@@ -32,6 +32,9 @@
32#define PMD_TYPE_SECT (_AT(pmdval_t, 1) << 0) 32#define PMD_TYPE_SECT (_AT(pmdval_t, 1) << 0)
33#define PMD_BIT4 (_AT(pmdval_t, 0)) 33#define PMD_BIT4 (_AT(pmdval_t, 0))
34#define PMD_DOMAIN(x) (_AT(pmdval_t, 0)) 34#define PMD_DOMAIN(x) (_AT(pmdval_t, 0))
35#define PMD_APTABLE_SHIFT (61)
36#define PMD_APTABLE (_AT(pgdval_t, 3) << PGD_APTABLE_SHIFT)
37#define PMD_PXNTABLE (_AT(pgdval_t, 1) << 59)
35 38
36/* 39/*
37 * - section 40 * - section
@@ -41,9 +44,11 @@
41#define PMD_SECT_S (_AT(pmdval_t, 3) << 8) 44#define PMD_SECT_S (_AT(pmdval_t, 3) << 8)
42#define PMD_SECT_AF (_AT(pmdval_t, 1) << 10) 45#define PMD_SECT_AF (_AT(pmdval_t, 1) << 10)
43#define PMD_SECT_nG (_AT(pmdval_t, 1) << 11) 46#define PMD_SECT_nG (_AT(pmdval_t, 1) << 11)
47#define PMD_SECT_PXN (_AT(pmdval_t, 1) << 53)
44#define PMD_SECT_XN (_AT(pmdval_t, 1) << 54) 48#define PMD_SECT_XN (_AT(pmdval_t, 1) << 54)
45#define PMD_SECT_AP_WRITE (_AT(pmdval_t, 0)) 49#define PMD_SECT_AP_WRITE (_AT(pmdval_t, 0))
46#define PMD_SECT_AP_READ (_AT(pmdval_t, 0)) 50#define PMD_SECT_AP_READ (_AT(pmdval_t, 0))
51#define PMD_SECT_AP1 (_AT(pmdval_t, 1) << 6)
47#define PMD_SECT_TEX(x) (_AT(pmdval_t, 0)) 52#define PMD_SECT_TEX(x) (_AT(pmdval_t, 0))
48 53
49/* 54/*
diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index a3f37929940a..6ef8afd1b64c 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -104,11 +104,29 @@
104 */ 104 */
105#define L_PGD_SWAPPER (_AT(pgdval_t, 1) << 55) /* swapper_pg_dir entry */ 105#define L_PGD_SWAPPER (_AT(pgdval_t, 1) << 55) /* swapper_pg_dir entry */
106 106
107/*
108 * 2nd stage PTE definitions for LPAE.
109 */
110#define L_PTE_S2_MT_UNCACHED (_AT(pteval_t, 0x5) << 2) /* MemAttr[3:0] */
111#define L_PTE_S2_MT_WRITETHROUGH (_AT(pteval_t, 0xa) << 2) /* MemAttr[3:0] */
112#define L_PTE_S2_MT_WRITEBACK (_AT(pteval_t, 0xf) << 2) /* MemAttr[3:0] */
113#define L_PTE_S2_RDONLY (_AT(pteval_t, 1) << 6) /* HAP[1] */
114#define L_PTE_S2_RDWR (_AT(pteval_t, 2) << 6) /* HAP[2:1] */
115
116/*
117 * Hyp-mode PL2 PTE definitions for LPAE.
118 */
119#define L_PTE_HYP L_PTE_USER
120
107#ifndef __ASSEMBLY__ 121#ifndef __ASSEMBLY__
108 122
109#define pud_none(pud) (!pud_val(pud)) 123#define pud_none(pud) (!pud_val(pud))
110#define pud_bad(pud) (!(pud_val(pud) & 2)) 124#define pud_bad(pud) (!(pud_val(pud) & 2))
111#define pud_present(pud) (pud_val(pud)) 125#define pud_present(pud) (pud_val(pud))
126#define pmd_table(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \
127 PMD_TYPE_TABLE)
128#define pmd_sect(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \
129 PMD_TYPE_SECT)
112 130
113#define pud_clear(pudp) \ 131#define pud_clear(pudp) \
114 do { \ 132 do { \
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index 9c82f988c0e3..f30ac3b55ba9 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -70,6 +70,9 @@ extern void __pgd_error(const char *file, int line, pgd_t);
70 70
71extern pgprot_t pgprot_user; 71extern pgprot_t pgprot_user;
72extern pgprot_t pgprot_kernel; 72extern pgprot_t pgprot_kernel;
73extern pgprot_t pgprot_hyp_device;
74extern pgprot_t pgprot_s2;
75extern pgprot_t pgprot_s2_device;
73 76
74#define _MOD_PROT(p, b) __pgprot(pgprot_val(p) | (b)) 77#define _MOD_PROT(p, b) __pgprot(pgprot_val(p) | (b))
75 78
@@ -82,6 +85,10 @@ extern pgprot_t pgprot_kernel;
82#define PAGE_READONLY_EXEC _MOD_PROT(pgprot_user, L_PTE_USER | L_PTE_RDONLY) 85#define PAGE_READONLY_EXEC _MOD_PROT(pgprot_user, L_PTE_USER | L_PTE_RDONLY)
83#define PAGE_KERNEL _MOD_PROT(pgprot_kernel, L_PTE_XN) 86#define PAGE_KERNEL _MOD_PROT(pgprot_kernel, L_PTE_XN)
84#define PAGE_KERNEL_EXEC pgprot_kernel 87#define PAGE_KERNEL_EXEC pgprot_kernel
88#define PAGE_HYP _MOD_PROT(pgprot_kernel, L_PTE_HYP)
89#define PAGE_HYP_DEVICE _MOD_PROT(pgprot_hyp_device, L_PTE_HYP)
90#define PAGE_S2 _MOD_PROT(pgprot_s2, L_PTE_S2_RDONLY)
91#define PAGE_S2_DEVICE _MOD_PROT(pgprot_s2_device, L_PTE_USER | L_PTE_S2_RDONLY)
85 92
86#define __PAGE_NONE __pgprot(_L_PTE_DEFAULT | L_PTE_RDONLY | L_PTE_XN | L_PTE_NONE) 93#define __PAGE_NONE __pgprot(_L_PTE_DEFAULT | L_PTE_RDONLY | L_PTE_XN | L_PTE_NONE)
87#define __PAGE_SHARED __pgprot(_L_PTE_DEFAULT | L_PTE_USER | L_PTE_XN) 94#define __PAGE_SHARED __pgprot(_L_PTE_DEFAULT | L_PTE_USER | L_PTE_XN)
diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
new file mode 100644
index 000000000000..3303ff5adbf3
--- /dev/null
+++ b/arch/arm/include/uapi/asm/kvm.h
@@ -0,0 +1,164 @@
1/*
2 * Copyright (C) 2012 - Virtual Open Systems and Columbia University
3 * Author: Christoffer Dall <c.dall@virtualopensystems.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2, as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18
19#ifndef __ARM_KVM_H__
20#define __ARM_KVM_H__
21
22#include <linux/types.h>
23#include <asm/ptrace.h>
24
25#define __KVM_HAVE_GUEST_DEBUG
26#define __KVM_HAVE_IRQ_LINE
27
28#define KVM_REG_SIZE(id) \
29 (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
30
31/* Valid for svc_regs, abt_regs, und_regs, irq_regs in struct kvm_regs */
32#define KVM_ARM_SVC_sp svc_regs[0]
33#define KVM_ARM_SVC_lr svc_regs[1]
34#define KVM_ARM_SVC_spsr svc_regs[2]
35#define KVM_ARM_ABT_sp abt_regs[0]
36#define KVM_ARM_ABT_lr abt_regs[1]
37#define KVM_ARM_ABT_spsr abt_regs[2]
38#define KVM_ARM_UND_sp und_regs[0]
39#define KVM_ARM_UND_lr und_regs[1]
40#define KVM_ARM_UND_spsr und_regs[2]
41#define KVM_ARM_IRQ_sp irq_regs[0]
42#define KVM_ARM_IRQ_lr irq_regs[1]
43#define KVM_ARM_IRQ_spsr irq_regs[2]
44
45/* Valid only for fiq_regs in struct kvm_regs */
46#define KVM_ARM_FIQ_r8 fiq_regs[0]
47#define KVM_ARM_FIQ_r9 fiq_regs[1]
48#define KVM_ARM_FIQ_r10 fiq_regs[2]
49#define KVM_ARM_FIQ_fp fiq_regs[3]
50#define KVM_ARM_FIQ_ip fiq_regs[4]
51#define KVM_ARM_FIQ_sp fiq_regs[5]
52#define KVM_ARM_FIQ_lr fiq_regs[6]
53#define KVM_ARM_FIQ_spsr fiq_regs[7]
54
55struct kvm_regs {
56 struct pt_regs usr_regs;/* R0_usr - R14_usr, PC, CPSR */
57 __u32 svc_regs[3]; /* SP_svc, LR_svc, SPSR_svc */
58 __u32 abt_regs[3]; /* SP_abt, LR_abt, SPSR_abt */
59 __u32 und_regs[3]; /* SP_und, LR_und, SPSR_und */
60 __u32 irq_regs[3]; /* SP_irq, LR_irq, SPSR_irq */
61 __u32 fiq_regs[8]; /* R8_fiq - R14_fiq, SPSR_fiq */
62};
63
64/* Supported Processor Types */
65#define KVM_ARM_TARGET_CORTEX_A15 0
66#define KVM_ARM_NUM_TARGETS 1
67
68#define KVM_ARM_VCPU_POWER_OFF 0 /* CPU is started in OFF state */
69
70struct kvm_vcpu_init {
71 __u32 target;
72 __u32 features[7];
73};
74
75struct kvm_sregs {
76};
77
78struct kvm_fpu {
79};
80
81struct kvm_guest_debug_arch {
82};
83
84struct kvm_debug_exit_arch {
85};
86
87struct kvm_sync_regs {
88};
89
90struct kvm_arch_memory_slot {
91};
92
93/* If you need to interpret the index values, here is the key: */
94#define KVM_REG_ARM_COPROC_MASK 0x000000000FFF0000
95#define KVM_REG_ARM_COPROC_SHIFT 16
96#define KVM_REG_ARM_32_OPC2_MASK 0x0000000000000007
97#define KVM_REG_ARM_32_OPC2_SHIFT 0
98#define KVM_REG_ARM_OPC1_MASK 0x0000000000000078
99#define KVM_REG_ARM_OPC1_SHIFT 3
100#define KVM_REG_ARM_CRM_MASK 0x0000000000000780
101#define KVM_REG_ARM_CRM_SHIFT 7
102#define KVM_REG_ARM_32_CRN_MASK 0x0000000000007800
103#define KVM_REG_ARM_32_CRN_SHIFT 11
104
105/* Normal registers are mapped as coprocessor 16. */
106#define KVM_REG_ARM_CORE (0x0010 << KVM_REG_ARM_COPROC_SHIFT)
107#define KVM_REG_ARM_CORE_REG(name) (offsetof(struct kvm_regs, name) / 4)
108
109/* Some registers need more space to represent values. */
110#define KVM_REG_ARM_DEMUX (0x0011 << KVM_REG_ARM_COPROC_SHIFT)
111#define KVM_REG_ARM_DEMUX_ID_MASK 0x000000000000FF00
112#define KVM_REG_ARM_DEMUX_ID_SHIFT 8
113#define KVM_REG_ARM_DEMUX_ID_CCSIDR (0x00 << KVM_REG_ARM_DEMUX_ID_SHIFT)
114#define KVM_REG_ARM_DEMUX_VAL_MASK 0x00000000000000FF
115#define KVM_REG_ARM_DEMUX_VAL_SHIFT 0
116
117/* VFP registers: we could overload CP10 like ARM does, but that's ugly. */
118#define KVM_REG_ARM_VFP (0x0012 << KVM_REG_ARM_COPROC_SHIFT)
119#define KVM_REG_ARM_VFP_MASK 0x000000000000FFFF
120#define KVM_REG_ARM_VFP_BASE_REG 0x0
121#define KVM_REG_ARM_VFP_FPSID 0x1000
122#define KVM_REG_ARM_VFP_FPSCR 0x1001
123#define KVM_REG_ARM_VFP_MVFR1 0x1006
124#define KVM_REG_ARM_VFP_MVFR0 0x1007
125#define KVM_REG_ARM_VFP_FPEXC 0x1008
126#define KVM_REG_ARM_VFP_FPINST 0x1009
127#define KVM_REG_ARM_VFP_FPINST2 0x100A
128
129
130/* KVM_IRQ_LINE irq field index values */
131#define KVM_ARM_IRQ_TYPE_SHIFT 24
132#define KVM_ARM_IRQ_TYPE_MASK 0xff
133#define KVM_ARM_IRQ_VCPU_SHIFT 16
134#define KVM_ARM_IRQ_VCPU_MASK 0xff
135#define KVM_ARM_IRQ_NUM_SHIFT 0
136#define KVM_ARM_IRQ_NUM_MASK 0xffff
137
138/* irq_type field */
139#define KVM_ARM_IRQ_TYPE_CPU 0
140#define KVM_ARM_IRQ_TYPE_SPI 1
141#define KVM_ARM_IRQ_TYPE_PPI 2
142
143/* out-of-kernel GIC cpu interrupt injection irq_number field */
144#define KVM_ARM_IRQ_CPU_IRQ 0
145#define KVM_ARM_IRQ_CPU_FIQ 1
146
147/* Highest supported SPI, from VGIC_NR_IRQS */
148#define KVM_ARM_IRQ_GIC_MAX 127
149
150/* PSCI interface */
151#define KVM_PSCI_FN_BASE 0x95c1ba5e
152#define KVM_PSCI_FN(n) (KVM_PSCI_FN_BASE + (n))
153
154#define KVM_PSCI_FN_CPU_SUSPEND KVM_PSCI_FN(0)
155#define KVM_PSCI_FN_CPU_OFF KVM_PSCI_FN(1)
156#define KVM_PSCI_FN_CPU_ON KVM_PSCI_FN(2)
157#define KVM_PSCI_FN_MIGRATE KVM_PSCI_FN(3)
158
159#define KVM_PSCI_RET_SUCCESS 0
160#define KVM_PSCI_RET_NI ((unsigned long)-1)
161#define KVM_PSCI_RET_INVAL ((unsigned long)-2)
162#define KVM_PSCI_RET_DENIED ((unsigned long)-3)
163
164#endif /* __ARM_KVM_H__ */