xref: /openbmc/linux/arch/arm64/include/asm/kvm_asm.h (revision 110e6f26)
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 
26 #define KVM_ARM64_DEBUG_DIRTY_SHIFT	0
27 #define KVM_ARM64_DEBUG_DIRTY		(1 << KVM_ARM64_DEBUG_DIRTY_SHIFT)
28 
29 #define kvm_ksym_ref(sym)						\
30 	({								\
31 		void *val = &sym;					\
32 		if (!is_kernel_in_hyp_mode())				\
33 			val = phys_to_virt((u64)&sym - kimage_voffset);	\
34 		val;							\
35 	 })
36 
37 #ifndef __ASSEMBLY__
38 struct kvm;
39 struct kvm_vcpu;
40 
41 extern char __kvm_hyp_init[];
42 extern char __kvm_hyp_init_end[];
43 
44 extern char __kvm_hyp_vector[];
45 
46 extern void __kvm_flush_vm_context(void);
47 extern void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa);
48 extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
49 
50 extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu);
51 
52 extern u64 __vgic_v3_get_ich_vtr_el2(void);
53 extern void __vgic_v3_init_lrs(void);
54 
55 extern u32 __kvm_get_mdcr_el2(void);
56 
57 extern void __init_stage2_translation(void);
58 
59 #endif
60 
61 #endif /* __ARM_KVM_ASM_H__ */
62