Merge remote-tracking branches 'spi/fix/ep93xx', 'spi/fix/rockchip', 'spi/fix/sunxi...
[cascardo/linux.git] / arch / arm64 / include / asm / kvm_asm.h
1 /*
2  * Copyright (C) 2012,2013 - 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_ASM_H__
19 #define __ARM_KVM_ASM_H__
20
21 #include <asm/virt.h>
22
23 #define ARM_EXCEPTION_IRQ         0
24 #define ARM_EXCEPTION_TRAP        1
25 /* The hyp-stub will return this for any kvm_call_hyp() call */
26 #define ARM_EXCEPTION_HYP_GONE    2
27
28 #define KVM_ARM64_DEBUG_DIRTY_SHIFT     0
29 #define KVM_ARM64_DEBUG_DIRTY           (1 << KVM_ARM64_DEBUG_DIRTY_SHIFT)
30
31 #define kvm_ksym_ref(sym)                                               \
32         ({                                                              \
33                 void *val = &sym;                                       \
34                 if (!is_kernel_in_hyp_mode())                           \
35                         val = phys_to_virt((u64)&sym - kimage_voffset); \
36                 val;                                                    \
37          })
38
39 #ifndef __ASSEMBLY__
40 struct kvm;
41 struct kvm_vcpu;
42
43 extern char __kvm_hyp_init[];
44 extern char __kvm_hyp_init_end[];
45 extern char __kvm_hyp_reset[];
46
47 extern char __kvm_hyp_vector[];
48
49 extern void __kvm_flush_vm_context(void);
50 extern void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa);
51 extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
52
53 extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu);
54
55 extern u64 __vgic_v3_get_ich_vtr_el2(void);
56 extern void __vgic_v3_init_lrs(void);
57
58 extern u32 __kvm_get_mdcr_el2(void);
59
60 extern u32 __init_stage2_translation(void);
61
62 #endif
63
64 #endif /* __ARM_KVM_ASM_H__ */