39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
// 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>
|
|
|
|
/*
|
|
* 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 __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;
|
|
}
|