9d1d264fb6
This function is no longer used anywhere in gem5. Small helper functions which had been put alongside vtophys on ARM and RISCV were also moved into src/arch/arm/remote_gdb.cc and src/arch/power/pagetable.hh, the only places they were used. Change-Id: Iba72f6c4b797a35a785a5bb781d602c943541fa7 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/26234 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>
136 lines
4.5 KiB
C++
136 lines
4.5 KiB
C++
/*
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* Copyright (c) 2007-2008 The Hewlett-Packard Development Company
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* All rights reserved.
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "arch/x86/linux/fs_workload.hh"
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#include "arch/x86/isa_traits.hh"
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#include "arch/x86/regs/int.hh"
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#include "base/trace.hh"
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#include "cpu/thread_context.hh"
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#include "mem/port_proxy.hh"
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#include "params/X86FsLinux.hh"
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#include "sim/byteswap.hh"
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#include "sim/system.hh"
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namespace X86ISA
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{
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FsLinux::FsLinux(Params *p) : X86ISA::FsWorkload(p), e820Table(p->e820_table)
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{}
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void
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FsLinux::initState()
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{
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X86ISA::FsWorkload::initState();
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auto phys_proxy = system->physProxy;
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// The location of the real mode data structure.
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const Addr realModeData = 0x90200;
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/*
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* Deal with the command line stuff.
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*/
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// A buffer to store the command line.
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const Addr commandLineBuff = 0x90000;
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// A pointer to the commandLineBuff stored in the real mode data.
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const Addr commandLinePointer = realModeData + 0x228;
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panic_if(commandLine.length() + 1 > realModeData - commandLineBuff,
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"Command line \"%s\" is longer than %d characters.",
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commandLine, realModeData - commandLineBuff - 1);
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phys_proxy.writeString(commandLineBuff, commandLine.c_str());
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// Generate a pointer of the right size and endianness to put into
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// commandLinePointer.
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uint32_t guestCommandLineBuff = htole((uint32_t)commandLineBuff);
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phys_proxy.writeBlob(commandLinePointer, &guestCommandLineBuff,
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sizeof(guestCommandLineBuff));
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/*
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* Screen Info.
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*/
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// We'll skip on this for now because it's only needed for framebuffers,
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// something we don't support at the moment.
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/*
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* EDID info
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*/
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// Skipping for now.
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/*
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* Saved video mode
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*/
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// Skipping for now.
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/*
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* Loader type.
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*/
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// Skipping for now.
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/*
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* E820 memory map
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*/
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// A pointer to the number of E820 entries there are.
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const Addr e820MapNrPointer = realModeData + 0x1e8;
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// A pointer to the buffer for E820 entries.
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const Addr e820MapPointer = realModeData + 0x2d0;
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e820Table->writeTo(phys_proxy, e820MapNrPointer, e820MapPointer);
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/*
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* Pass the location of the real mode data structure to the kernel
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* using register %esi. We'll use %rsi which should be equivalent.
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*/
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system->threadContexts[0]->setIntReg(INTREG_RSI, realModeData);
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}
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} // namespace X86ISA
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X86ISA::FsLinux *
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X86FsLinuxParams::create()
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{
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return new X86ISA::FsLinux(this);
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}
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