1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2020 - Google LLC 4*4882a593Smuzhiyun * Author: David Brazdil <dbrazdil@google.com> 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #include <asm/kvm_asm.h> 8*4882a593Smuzhiyun #include <asm/kvm_hyp.h> 9*4882a593Smuzhiyun #include <asm/kvm_mmu.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun /* 12*4882a593Smuzhiyun * nVHE copy of data structures tracking available CPU cores. 13*4882a593Smuzhiyun * Only entries for CPUs that were online at KVM init are populated. 14*4882a593Smuzhiyun * Other CPUs should not be allowed to boot because their features were 15*4882a593Smuzhiyun * not checked against the finalized system capabilities. 16*4882a593Smuzhiyun */ 17*4882a593Smuzhiyun u64 __ro_after_init hyp_cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID }; 18*4882a593Smuzhiyun cpu_logical_map(unsigned int cpu)19*4882a593Smuzhiyunu64 cpu_logical_map(unsigned int cpu) 20*4882a593Smuzhiyun { 21*4882a593Smuzhiyun if (cpu >= ARRAY_SIZE(hyp_cpu_logical_map)) 22*4882a593Smuzhiyun hyp_panic(); 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun return hyp_cpu_logical_map[cpu]; 25*4882a593Smuzhiyun } 26*4882a593Smuzhiyun __hyp_per_cpu_offset(unsigned int cpu)27*4882a593Smuzhiyununsigned long __hyp_per_cpu_offset(unsigned int cpu) 28*4882a593Smuzhiyun { 29*4882a593Smuzhiyun unsigned long *cpu_base_array; 30*4882a593Smuzhiyun unsigned long this_cpu_base; 31*4882a593Smuzhiyun unsigned long elf_base; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun if (cpu >= ARRAY_SIZE(kvm_arm_hyp_percpu_base)) 34*4882a593Smuzhiyun hyp_panic(); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun cpu_base_array = (unsigned long *)&kvm_arm_hyp_percpu_base; 37*4882a593Smuzhiyun this_cpu_base = kern_hyp_va(cpu_base_array[cpu]); 38*4882a593Smuzhiyun elf_base = (unsigned long)&__per_cpu_start; 39*4882a593Smuzhiyun return this_cpu_base - elf_base; 40*4882a593Smuzhiyun } 41