03263ac990
Conflicts: arch/arm64/include/asm/kvm_asm.h arch/arm64/include/asm/memory.h arch/arm64/kernel/head.S arch/arm64/kvm/hyp.S
73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/*
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* Copyright (C) 2012,2013 - ARM Ltd
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* Author: Marc Zyngier <marc.zyngier@arm.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ARM_KVM_ASM_H__
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#define __ARM_KVM_ASM_H__
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#include <asm/virt.h>
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#define ARM_EXCEPTION_IRQ 0
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#define ARM_EXCEPTION_TRAP 1
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/* The hyp-stub will return this for any kvm_call_hyp() call */
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#define ARM_EXCEPTION_HYP_GONE 2
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#define KVM_ARM64_DEBUG_DIRTY_SHIFT 0
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#define KVM_ARM64_DEBUG_DIRTY (1 << KVM_ARM64_DEBUG_DIRTY_SHIFT)
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#define kvm_ksym_ref(sym) phys_to_virt((u64)&sym - kimage_voffset)
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#ifndef __ASSEMBLY__
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#if __GNUC__ > 4
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#define kvm_ksym_shift (PAGE_OFFSET - KIMAGE_VADDR)
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#else
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/*
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* GCC versions 4.9 and older will fold the constant below into the addend of
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* the reference to 'sym' above if kvm_ksym_shift is declared static or if the
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* constant is used directly. However, since we use the small code model for
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* the core kernel, the reference to 'sym' will be emitted as a adrp/add pair,
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* with a +/- 4 GB range, resulting in linker relocation errors if the shift
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* is sufficiently large. So prevent the compiler from folding the shift into
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* the addend, by making the shift a variable with external linkage.
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*/
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__weak u64 kvm_ksym_shift = PAGE_OFFSET - KIMAGE_VADDR;
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#endif
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struct kvm;
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struct kvm_vcpu;
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extern char __kvm_hyp_init[];
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extern char __kvm_hyp_init_end[];
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extern char __kvm_hyp_reset[];
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extern char __kvm_hyp_vector[];
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#define __kvm_hyp_code_start __hyp_text_start
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#define __kvm_hyp_code_end __hyp_text_end
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extern void __kvm_flush_vm_context(void);
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extern void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa);
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extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
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extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu);
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extern u64 __vgic_v3_get_ich_vtr_el2(void);
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extern u32 __kvm_get_mdcr_el2(void);
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#endif
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#endif /* __ARM_KVM_ASM_H__ */
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