99 lines
2.9 KiB
C
Executable file
99 lines
2.9 KiB
C
Executable file
/*
|
|
* Copyright (C) 2012,2013 - ARM Ltd
|
|
* Author: Marc Zyngier <marc.zyngier@arm.com>
|
|
*
|
|
* Based on arch/arm/kvm/coproc_a15.c:
|
|
* Copyright (C) 2012 - Virtual Open Systems and Columbia University
|
|
* Authors: Rusty Russell <rusty@rustcorp.au>
|
|
* Christoffer Dall <c.dall@virtualopensystems.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License, version 2, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <linux/kvm_host.h>
|
|
#include <asm/cputype.h>
|
|
#include <asm/kvm_arm.h>
|
|
#include <asm/kvm_asm.h>
|
|
#include <asm/kvm_host.h>
|
|
#include <asm/kvm_emulate.h>
|
|
#include <asm/kvm_coproc.h>
|
|
#include <asm/sysreg.h>
|
|
#include <linux/init.h>
|
|
|
|
#include "sys_regs.h"
|
|
|
|
static bool access_actlr(struct kvm_vcpu *vcpu,
|
|
struct sys_reg_params *p,
|
|
const struct sys_reg_desc *r)
|
|
{
|
|
if (p->is_write)
|
|
return ignore_write(vcpu, p);
|
|
|
|
p->regval = vcpu_read_sys_reg(vcpu, ACTLR_EL1);
|
|
return true;
|
|
}
|
|
|
|
static void reset_actlr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r)
|
|
{
|
|
__vcpu_sys_reg(vcpu, ACTLR_EL1) = read_sysreg(actlr_el1);
|
|
}
|
|
|
|
/*
|
|
* Implementation specific sys-reg registers.
|
|
* Important: Must be sorted ascending by Op0, Op1, CRn, CRm, Op2
|
|
*/
|
|
static const struct sys_reg_desc genericv8_sys_regs[] = {
|
|
{ SYS_DESC(SYS_ACTLR_EL1), access_actlr, reset_actlr, ACTLR_EL1 },
|
|
};
|
|
|
|
static const struct sys_reg_desc genericv8_cp15_regs[] = {
|
|
/* ACTLR */
|
|
{ Op1(0b000), CRn(0b0001), CRm(0b0000), Op2(0b001),
|
|
access_actlr },
|
|
};
|
|
|
|
static struct kvm_sys_reg_target_table genericv8_target_table = {
|
|
.table64 = {
|
|
.table = genericv8_sys_regs,
|
|
.num = ARRAY_SIZE(genericv8_sys_regs),
|
|
},
|
|
.table32 = {
|
|
.table = genericv8_cp15_regs,
|
|
.num = ARRAY_SIZE(genericv8_cp15_regs),
|
|
},
|
|
};
|
|
|
|
static int __init sys_reg_genericv8_init(void)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 1; i < ARRAY_SIZE(genericv8_sys_regs); i++)
|
|
BUG_ON(cmp_sys_reg(&genericv8_sys_regs[i-1],
|
|
&genericv8_sys_regs[i]) >= 0);
|
|
|
|
kvm_register_target_sys_reg_table(KVM_ARM_TARGET_AEM_V8,
|
|
&genericv8_target_table);
|
|
kvm_register_target_sys_reg_table(KVM_ARM_TARGET_FOUNDATION_V8,
|
|
&genericv8_target_table);
|
|
kvm_register_target_sys_reg_table(KVM_ARM_TARGET_CORTEX_A53,
|
|
&genericv8_target_table);
|
|
kvm_register_target_sys_reg_table(KVM_ARM_TARGET_CORTEX_A57,
|
|
&genericv8_target_table);
|
|
kvm_register_target_sys_reg_table(KVM_ARM_TARGET_XGENE_POTENZA,
|
|
&genericv8_target_table);
|
|
kvm_register_target_sys_reg_table(KVM_ARM_TARGET_GENERIC_V8,
|
|
&genericv8_target_table);
|
|
|
|
return 0;
|
|
}
|
|
late_initcall(sys_reg_genericv8_init);
|