arch/arm/kvm/coproc_a7.c

   1 /*
   2  * Copyright (C) 2012 - Virtual Open Systems and Columbia University
   3  * Copyright (C) 2013 - ARM Ltd
   4  *
   5  * Authors: Rusty Russell <rusty@rustcorp.au>
   6  *          Christoffer Dall <c.dall@virtualopensystems.com>
   7  *          Jonathan Austin <jonathan.austin@arm.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License, version 2, as
  11  * published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  21  */
  22 #include <linux/kvm_host.h>
  23 #include <asm/kvm_coproc.h>
  24 #include <asm/kvm_emulate.h>
  25 #include <linux/init.h>
  26
  27 #include "coproc.h"
  28
  29 /*
  30  * Cortex-A7 specific CP15 registers.
  31  * CRn denotes the primary register number, but is copied to the CRm in the
  32  * user space API for 64-bit register access in line with the terminology used
  33  * in the ARM ARM.
  34  * Important: Must be sorted ascending by CRn, CRM, Op1, Op2 and with 64-bit
  35  *            registers preceding 32-bit ones.
  36  */
  37 static const struct coproc_reg a7_regs[] = {
  38         /* SCTLR: swapped by interrupt.S. */
  39         { CRn( 1), CRm( 0), Op1( 0), Op2( 0), is32,
  40                         access_vm_reg, reset_val, c1_SCTLR, 0x00C50878 },
  41 };
  42
  43 static struct kvm_coproc_target_table a7_target_table = {
  44         .target = KVM_ARM_TARGET_CORTEX_A7,
  45         .table = a7_regs,
  46         .num = ARRAY_SIZE(a7_regs),
  47 };
  48
  49 static int __init coproc_a7_init(void)
  50 {
  51         kvm_register_target_coproc_table(&a7_target_table);
  52         return 0;
  53 }
  54 late_initcall(coproc_a7_init);