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38 lines
1.1 KiB
38 lines
1.1 KiB
// 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 <[email protected]> |
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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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