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Linux/arch/arm64/include/asm/kvm_asm.h

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  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__ */
 65 

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