/*
* Copyright (C) 2012-2015 - ARM Ltd
* Author: Marc Zyngier <marc.zyngier@arm.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/compiler.h>
#include <linux/irqchip/arm-gic-v3.h>
#include <linux/kvm_host.h>
#include <asm/kvm_emulate.h>
#include <asm/kvm_hyp.h>
#define vtr_to_max_lr_idx(v) ((v) & 0xf)
#define vtr_to_nr_pre_bits(v) ((((u32)(v) >> 26) & 7) + 1)
#define vtr_to_nr_apr_regs(v) (1 << (vtr_to_nr_pre_bits(v) - 5))
static u64 __hyp_text __gic_v3_get_lr(unsigned int lr)
{
switch (lr & 0xf) {
case 0:
return read_gicreg(ICH_LR0_EL2);
case 1:
return read_gicreg(ICH_LR1_EL2);
case 2:
return read_gicreg(ICH_LR2_EL2);
case 3:
return read_gicreg(ICH_LR3_EL2);
case 4:
return read_gicreg(ICH_LR4_EL2);
case 5:
return read_gicreg(ICH_LR5_EL2);
case 6:
return read_gicreg(ICH_LR6_EL2);
case 7:
return read_gicreg(ICH_LR7_EL2);
case 8:
return read_gicreg(ICH_LR8_EL2);
case 9:
return read_gicreg(ICH_LR9_EL2);
case 10:
return read_gicreg(ICH_LR10_EL2);
case 11:
return read_gicreg(ICH_LR11_EL2);
case 12:
return read_gicreg(ICH_LR12_EL2);
case 13:
return read_gicreg(ICH_LR13_EL2);
case 14:
return read_gicreg(ICH_LR14_EL2);
case 15:
return read_gicreg(ICH_LR15_EL2);
}
unreachable();
}
static void __hyp_text __gic_v3_set_lr(u64 val, int lr)
{
switch (lr & 0xf) {
case 0:
write_gicreg(val, ICH_LR0_EL2);
break;
case 1:
write_gicreg(val, ICH_LR1_EL2);
break;
case 2:
write_gicreg(val, ICH_LR2_EL2);
break;
case 3:
write_gicreg(val, ICH_LR3_EL2);
break;
case 4:
write_gicreg(val, ICH_LR4_EL2);
break;
case 5:
write_gicreg(val, ICH_LR5_EL2);
break;
case 6:
write_gicreg(val, ICH_LR6_EL2);
break;
case 7:
write_gicreg(val, ICH_LR7_EL2);
break;
case 8:
write_gicreg(val, ICH_LR8_EL2);
break;
case 9:
write_gicreg(val, ICH_LR9_EL2);
break;
case 10:
write_gicreg(val, ICH_LR10_EL2);
break;
case 11:
write_gicreg(val, ICH_LR11_EL2);
break;
case 12:
write_gicreg(val, ICH_LR12_EL2);
break;
case 13:
write_gicreg(val, ICH_LR13_EL2);
break;
case 14:
write_gicreg(val, ICH_LR14_EL2);
break;
case 15:
write_gicreg(val, ICH_LR15_EL2);
break;
}
}
static void __hyp_text __vgic_v3_write_ap0rn(u32 val, int n)
{
switch (n) {
case 0:
write_gicreg(val, ICH_AP0R0_EL2);
break;
case 1:
write_gicreg(val, ICH_AP0R1_EL2);
break;
case 2:
write_gicreg(val, ICH_AP0R2_EL2);
break;
case 3:
write_gicreg(val, ICH_AP0R3_EL2);
break;
}
}
static void __hyp_text __vgic_v3_write_ap1rn(u32 val, int n)
{
switch (n) {
case 0:
write_gicreg(val, ICH_AP1R0_EL2);
break;
case 1:
write_gicreg(val, ICH_AP1R1_EL2);
break;
case 2:
write_gicreg(val, ICH_AP1R2_EL2);
break;