arch/arm64/include/asm/kvm_mmio.h

   1 /*
   2  * Copyright (C) 2012 - Virtual Open Systems and Columbia University
   3  * Author: Christoffer Dall <c.dall@virtualopensystems.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License, version 2, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef __ARM64_KVM_MMIO_H__
  19 #define __ARM64_KVM_MMIO_H__
  20
  21 #include <linux/kvm_host.h>
  22 #include <asm/kvm_arm.h>
  23
  24 /*
  25  * This is annoying. The mmio code requires this, even if we don't
  26  * need any decoding. To be fixed.
  27  */
  28 struct kvm_decode {
  29         unsigned long rt;
  30         bool sign_extend;
  31 };
  32
  33 void kvm_mmio_write_buf(void *buf, unsigned int len, unsigned long data);
  34 unsigned long kvm_mmio_read_buf(const void *buf, unsigned int len);
  35
  36 int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
  37 int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
  38                  phys_addr_t fault_ipa);
  39
  40 #endif  /* __ARM64_KVM_MMIO_H__ */