6b18ec642e
This function should just return false in that case, and its callers should figure out what to do. Otherwise, when calling tryReadBlob in SE mode, a failure to read the blob makes gem5 panic instead of just returning false. Change-Id: I74b9cb98f595c52300d683842ece68c6031d9b85 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/30376 Reviewed-by: Sandipan Das <sandipan@linux.ibm.com> Reviewed-by: Matthew Poremba <matthew.poremba@amd.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>
67 lines
2.9 KiB
C++
67 lines
2.9 KiB
C++
/*
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* Copyright (c) 2011 ARM Limited
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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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* Copyright (c) 2001-2005 The Regents of The University of Michigan
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* All rights reserved.
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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 "mem/se_translating_port_proxy.hh"
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#include "sim/process.hh"
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#include "sim/system.hh"
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SETranslatingPortProxy::SETranslatingPortProxy(
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ThreadContext *tc, AllocType alloc, Request::Flags _flags) :
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TranslatingPortProxy(tc, _flags), allocating(alloc)
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{}
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bool
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SETranslatingPortProxy::fixupAddr(Addr addr, BaseTLB::Mode mode) const
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{
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auto *process = _tc->getProcessPtr();
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if (mode == BaseTLB::Write) {
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if (allocating == Always) {
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process->allocateMem(roundDown(addr, pageBytes), pageBytes);
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return true;
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} else if (allocating == NextPage && process->fixupFault(addr)) {
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// We've accessed the next page on the stack.
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return true;
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}
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}
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return false;
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}
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