82 lines
3.6 KiB
C
82 lines
3.6 KiB
C
|
/*
|
||
|
|
* Original code:
|
||
|
|
* Copyright (C) 2012 - Virtual Open Systems and Columbia University
|
||
|
|
* Author: Christoffer Dall <c.dall@virtualopensystems.com>
|
||
|
|
*
|
||
|
|
* Mostly rewritten in C by 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 <asm/kvm_hyp.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* gcc before 4.9 doesn't understand -march=armv7ve, so we have to
|
||
|
|
* trick the assembler.
|
||
|
|
*/
|
||
|
|
__asm__(".arch_extension virt");
|
||
|
|
|
||
|
|
void __hyp_text __banked_save_state(struct kvm_cpu_context *ctxt)
|
||
|
|
{
|
||
|
|
ctxt->gp_regs.usr_regs.ARM_sp = read_special(SP_usr);
|
||
|
|
ctxt->gp_regs.usr_regs.ARM_pc = read_special(ELR_hyp);
|
||
|
|
ctxt->gp_regs.usr_regs.ARM_cpsr = read_special(SPSR);
|
||
|
|
ctxt->gp_regs.KVM_ARM_SVC_sp = read_special(SP_svc);
|
||
|
|
ctxt->gp_regs.KVM_ARM_SVC_lr = read_special(LR_svc);
|
||
|
|
ctxt->gp_regs.KVM_ARM_SVC_spsr = read_special(SPSR_svc);
|
||
|
|
ctxt->gp_regs.KVM_ARM_ABT_sp = read_special(SP_abt);
|
||
|
|
ctxt->gp_regs.KVM_ARM_ABT_lr = read_special(LR_abt);
|
||
|
|
ctxt->gp_regs.KVM_ARM_ABT_spsr = read_special(SPSR_abt);
|
||
|
|
ctxt->gp_regs.KVM_ARM_UND_sp = read_special(SP_und);
|
||
|
|
ctxt->gp_regs.KVM_ARM_UND_lr = read_special(LR_und);
|
||
|
|
ctxt->gp_regs.KVM_ARM_UND_spsr = read_special(SPSR_und);
|
||
|
|
ctxt->gp_regs.KVM_ARM_IRQ_sp = read_special(SP_irq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_IRQ_lr = read_special(LR_irq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_IRQ_spsr = read_special(SPSR_irq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_FIQ_r8 = read_special(R8_fiq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_FIQ_r9 = read_special(R9_fiq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_FIQ_r10 = read_special(R10_fiq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_FIQ_fp = read_special(R11_fiq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_FIQ_ip = read_special(R12_fiq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_FIQ_sp = read_special(SP_fiq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_FIQ_lr = read_special(LR_fiq);
|
||
|
|
ctxt->gp_regs.KVM_ARM_FIQ_spsr = read_special(SPSR_fiq);
|
||
|
|
}
|
||
|
|
|
||
|
|
void __hyp_text __banked_restore_state(struct kvm_cpu_context *ctxt)
|
||
|
|
{
|
||
|
|
write_special(ctxt->gp_regs.usr_regs.ARM_sp, SP_usr);
|
||
|
|
write_special(ctxt->gp_regs.usr_regs.ARM_pc, ELR_hyp);
|
||
|
|
write_special(ctxt->gp_regs.usr_regs.ARM_cpsr, SPSR_cxsf);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_SVC_sp, SP_svc);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_SVC_lr, LR_svc);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_SVC_spsr, SPSR_svc);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_ABT_sp, SP_abt);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_ABT_lr, LR_abt);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_ABT_spsr, SPSR_abt);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_UND_sp, SP_und);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_UND_lr, LR_und);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_UND_spsr, SPSR_und);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_IRQ_sp, SP_irq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_IRQ_lr, LR_irq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_IRQ_spsr, SPSR_irq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_FIQ_r8, R8_fiq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_FIQ_r9, R9_fiq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_FIQ_r10, R10_fiq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_FIQ_fp, R11_fiq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_FIQ_ip, R12_fiq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_FIQ_sp, SP_fiq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_FIQ_lr, LR_fiq);
|
||
|
|
write_special(ctxt->gp_regs.KVM_ARM_FIQ_spsr, SPSR_fiq);
|
||
|
|
}
|