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+/*
+ * Copyright (c) 2012, 2015 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Andreas Sandberg
+ */
+
+#ifndef __ARCH_ARM_KVM_BASE_CPU_HH__
+#define __ARCH_ARM_KVM_BASE_CPU_HH__
+
+#include <vector>
+
+#include "cpu/kvm/base.hh"
+
+struct BaseArmKvmCPUParams;
+
+class BaseArmKvmCPU : public BaseKvmCPU
+{
+ public:
+ BaseArmKvmCPU(BaseArmKvmCPUParams *params);
+ virtual ~BaseArmKvmCPU();
+
+ void startup() M5_ATTR_OVERRIDE;
+
+ protected:
+ Tick kvmRun(Tick ticks) M5_ATTR_OVERRIDE;
+
+
+ /** Cached state of the IRQ line */
+ bool irqAsserted;
+ /** Cached state of the FIQ line */
+ bool fiqAsserted;
+
+ protected:
+ typedef std::vector<uint64_t> RegIndexVector;
+
+ /**
+ * Get a list of registers supported by getOneReg() and setOneReg().
+ *
+ * This method returns a list of all registers supported by
+ * kvm. The actual list is only requested the first time this
+ * method is called. Subsequent calls return a cached copy of the
+ * register list.
+ *
+ * @return Vector of register indexes.
+ */
+ const RegIndexVector &getRegList() const;
+
+ /**
+ * Tell the kernel to initialize this CPU
+ *
+ * The kernel needs to know what type of the CPU that we want to
+ * emulate. The specified CPU type has to be compatible with the
+ * host CPU. In practice, we usually call
+ * KvmVM::kvmArmPreferredTarget() to discover the host CPU.
+ *
+ * @param target CPU type to emulate
+ */
+ void kvmArmVCpuInit(const struct kvm_vcpu_init &init);
+
+ private:
+ std::unique_ptr<struct kvm_reg_list> tryGetRegList(uint64_t nelem) const;
+
+ /**
+ * Get a list of registers supported by getOneReg() and setOneReg().
+ *
+ * @return False if the number of elements allocated in the list
+ * is too small to hold the complete register list (the required
+ * size is written to regs.n in this case). True on success.
+ */
+ bool getRegList(struct kvm_reg_list &regs) const;
+
+ /**
+ * Cached copy of the list of registers supported by KVM
+ */
+ mutable RegIndexVector _regIndexList;
+};
+
+#endif // __ARCH_ARM_KVM_BASE_CPU_HH__