mirror of https://gitee.com/openkylin/linux.git
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
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/*
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* Copyright (C) 2012 - Virtual Open Systems and Columbia University
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* Author: Christoffer Dall <c.dall@virtualopensystems.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ARM64_KVM_MMIO_H__
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#define __ARM64_KVM_MMIO_H__
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#include <linux/kvm_host.h>
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#include <asm/kvm_asm.h>
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#include <asm/kvm_arm.h>
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/*
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* This is annoying. The mmio code requires this, even if we don't
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* need any decoding. To be fixed.
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*/
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struct kvm_decode {
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unsigned long rt;
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bool sign_extend;
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};
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/*
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* The in-kernel MMIO emulation code wants to use a copy of run->mmio,
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* which is an anonymous type. Use our own type instead.
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*/
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struct kvm_exit_mmio {
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phys_addr_t phys_addr;
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u8 data[8];
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u32 len;
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bool is_write;
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};
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static inline void kvm_prepare_mmio(struct kvm_run *run,
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struct kvm_exit_mmio *mmio)
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{
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run->mmio.phys_addr = mmio->phys_addr;
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run->mmio.len = mmio->len;
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run->mmio.is_write = mmio->is_write;
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memcpy(run->mmio.data, mmio->data, mmio->len);
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run->exit_reason = KVM_EXIT_MMIO;
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}
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int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
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int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
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phys_addr_t fault_ipa);
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#endif /* __ARM64_KVM_MMIO_H__ */
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