tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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_EXIT_WITH_SERROR_BIT 31
24#define ARM_EXCEPTION_CODE(x) ((x) & ~(1U << ARM_EXIT_WITH_SERROR_BIT))
25#define ARM_SERROR_PENDING(x) !!((x) & (1U << ARM_EXIT_WITH_SERROR_BIT))
26
27#define ARM_EXCEPTION_IRQ 0
28#define ARM_EXCEPTION_EL1_SERROR 1
29#define ARM_EXCEPTION_TRAP 2
30/* The hyp-stub will return this for any kvm_call_hyp() call */
31#define ARM_EXCEPTION_HYP_GONE HVC_STUB_ERR
32
33#define KVM_ARM64_DEBUG_DIRTY_SHIFT 0
34#define KVM_ARM64_DEBUG_DIRTY (1 << KVM_ARM64_DEBUG_DIRTY_SHIFT)
35
36#define kvm_ksym_ref(sym) \
37 ({ \
38 void *val = &sym; \
39 if (!is_kernel_in_hyp_mode()) \
40 val = phys_to_virt((u64)&sym - kimage_voffset); \
41 val; \
42 })
43
44#ifndef __ASSEMBLY__
45struct kvm;
46struct kvm_vcpu;
47
48extern char __kvm_hyp_init[];
49extern char __kvm_hyp_init_end[];
50
51extern char __kvm_hyp_vector[];
52
53extern void __kvm_flush_vm_context(void);
54extern void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa);
55extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
56extern void __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu);
57
58extern void __kvm_timer_set_cntvoff(u32 cntvoff_low, u32 cntvoff_high);
59
60extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu);
61
62extern u64 __vgic_v3_get_ich_vtr_el2(void);
63extern u64 __vgic_v3_read_vmcr(void);
64extern void __vgic_v3_write_vmcr(u32 vmcr);
65extern void __vgic_v3_init_lrs(void);
66
67extern u32 __kvm_get_mdcr_el2(void);
68
69extern u32 __init_stage2_translation(void);
70
71extern void __qcom_hyp_sanitize_btac_predictors(void);
72
73#endif
74
75#endif /* __ARM_KVM_ASM_H__ */