39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2020 - Google LLC
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* Author: David Brazdil <dbrazdil@google.com>
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*/
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#include <asm/kvm_asm.h>
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#include <asm/kvm_hyp.h>
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#include <asm/kvm_mmu.h>
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/*
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* nVHE copy of data structures tracking available CPU cores.
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* Only entries for CPUs that were online at KVM init are populated.
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* Other CPUs should not be allowed to boot because their features were
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* not checked against the finalized system capabilities.
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*/
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u64 __ro_after_init hyp_cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
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u64 cpu_logical_map(unsigned int cpu)
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{
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BUG_ON(cpu >= ARRAY_SIZE(hyp_cpu_logical_map));
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return hyp_cpu_logical_map[cpu];
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}
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unsigned long __hyp_per_cpu_offset(unsigned int cpu)
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{
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unsigned long *cpu_base_array;
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unsigned long this_cpu_base;
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unsigned long elf_base;
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BUG_ON(cpu >= ARRAY_SIZE(kvm_arm_hyp_percpu_base));
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cpu_base_array = (unsigned long *)&kvm_arm_hyp_percpu_base;
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this_cpu_base = kern_hyp_va(cpu_base_array[cpu]);
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elf_base = (unsigned long)&__per_cpu_start;
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return this_cpu_base - elf_base;
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}
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