kvm, arm: Move ARM-specific files to arch/arm/kvm/

This changeset moves the ARM-specific KVM CPU implementation to
arch/arm/kvm/. This change is expected to keep the source tree
somewhat cleaner as we start adding support for ARMv8 and KVM
in-kernel interrupt controller simulation.

--HG--
rename : src/cpu/kvm/ArmKvmCPU.py => src/arch/arm/kvm/ArmKvmCPU.py
rename : src/cpu/kvm/arm_cpu.cc => src/arch/arm/kvm/arm_cpu.cc
rename : src/cpu/kvm/arm_cpu.hh => src/arch/arm/kvm/arm_cpu.hh

1 files changed, 0 insertions, 170 deletions

diff --git a/src/cpu/kvm/arm_cpu.hh b/src/cpu/kvm/arm_cpu.hh
deleted file mode 100644
index 9d9850fef..000000000
--- a/src/cpu/kvm/arm_cpu.hh
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * Copyright (c) 2012 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 __CPU_KVM_ARM_CPU_HH__
-#define __CPU_KVM_ARM_CPU_HH__
-
-#include <set>
-#include <vector>
-
-#include "cpu/kvm/base.hh"
-#include "params/ArmKvmCPU.hh"
-
-/**
- * ARM implementation of a KVM-based hardware virtualized CPU.
- * Architecture specific limitations:
- *  * LPAE is currently not supported by gem5. We therefore panic if LPAE
- *    is enabled when returning to gem5.
- *  * The co-processor based interface to the architected timer is
- *    unsupported. We can't support this due to limitations in the KVM
- *    API on ARM.
- *  * M5 ops are currently not supported. This requires either a kernel
- *  hack or a memory mapped device that handles the guest<->m5
- *  interface.
- */
-class ArmKvmCPU : public BaseKvmCPU
-{
-  public:
-    ArmKvmCPU(ArmKvmCPUParams *params);
-    virtual ~ArmKvmCPU();
-
-    void startup();
-
-    void dump();
-
-  protected:
-    struct KvmIntRegInfo {
-        /** KVM ID */
-        const uint64_t id;
-        /** gem5 index */
-        const IntRegIndex idx;
-        /** Name in debug output */
-        const char *name;
-    };
-
-    struct KvmCoreMiscRegInfo {
-        /** KVM ID */
-        const uint64_t id;
-        /** gem5 index */
-        const MiscRegIndex idx;
-        /** Name in debug output */
-        const char *name;
-    };
-
-    typedef std::vector<uint64_t> RegIndexVector;
-
-    Tick kvmRun(Tick ticks);
-
-    void updateKvmState();
-    void updateThreadContext();
-
-    Tick onKvmExitHypercall();
-
-    /**
-     * Get a list of registers supported by getOneReg() and setOneReg().
-     */
-    const RegIndexVector &getRegList() const;
-
-    void kvmArmVCpuInit(uint32_t target);
-    void kvmArmVCpuInit(const struct kvm_vcpu_init &init);
-
-    ArmISA::MiscRegIndex decodeCoProcReg(uint64_t id) const;
-
-    ArmISA::MiscRegIndex decodeVFPCtrlReg(uint64_t id) const;
-
-    /**
-     * Determine if a register is invariant.
-     *
-     * Some registers must have the same value in both the host and
-     * the guest. Such registers are referred to as "invariant"
-     * registers in KVM. This is a restriction imposed by KVM as
-     * having different values in ID registers (e.g., the cache
-     * identification registers) would confuse the guest kernel.
-     */
-    bool isInvariantReg(uint64_t id);
-
-    static KvmIntRegInfo kvmIntRegs[];
-    static KvmCoreMiscRegInfo kvmCoreMiscRegs[];
-
-  private:
-    /**
-     * 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
-     * value is written into n in this case). True on success.
-     */
-    bool getRegList(struct kvm_reg_list &regs) const;
-
-    void dumpKvmStateCore();
-    void dumpKvmStateMisc();
-    void dumpKvmStateCoProc(uint64_t id);
-    void dumpKvmStateVFP(uint64_t id);
-
-    void updateKvmStateCore();
-    void updateKvmStateMisc();
-    void updateKvmStateCoProc(uint64_t id, bool show_warnings);
-    void updateKvmStateVFP(uint64_t id, bool show_warnings);
-
-    void updateTCStateCore();
-    void updateTCStateMisc();
-    void updateTCStateCoProc(uint64_t id, bool show_warnings);
-    void updateTCStateVFP(uint64_t id, bool show_warnings);
-
-
-    /** Cached state of the IRQ line */
-    bool irqAsserted;
-    /** Cached state of the FIQ line */
-    bool fiqAsserted;
-
-    /**
-     * Cached copy of the list of co-processor registers supported by
-     * KVM
-     */
-    mutable RegIndexVector _regIndexList;
-
-    /**
-     * List of co-processor registers that KVM requires to be
-     * identical on both the host and the guest. KVM does not allow
-     * writes to these registers.
-     */
-    static const std::set<uint64_t> invariant_regs;
-};
-
-#endif