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