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2019-05-12still cannot run fence+ift...hitsbIru Cai
2019-05-12finally runs dhrystoneIru Cai
Change-Id: I7466a825f8726682622d237460311a1c4b23b8ad
2019-05-12only spec load when hitIru Cai
2019-05-11try not expose if L1 hitis-ift-cachehitIru Cai
2019-05-07set cache latencyIru Cai
Change-Id: I4ab87792f2caa93a4553c094b35b1454191a1c44
2019-04-22fix the violation checking for IFT+fenceIru Cai
When using IFT, fenceDelay means the load is deferred, but some load can be between fences and executed, so fenceDelayed instructions should be checked.
2019-04-17add a test scriptIru Cai
2019-04-17fix allowSpecBuffHit and trackBranch optionsIru Cai
2019-04-17add a trackBranch optionIru Cai
2019-04-17IFT for fence schemeIru Cai
2019-04-16victim function v10Iru Cai
2019-04-16track instruction after tainted branchesIru Cai
2019-04-16use -static to build attack codeIru Cai
Change-Id: I51fedbade826835d1f1655944351aa47a0a80c70
2019-04-15Add IFT debug flagsIru Cai
2019-04-12add IEW DPRINTFIru Cai
2019-04-12exp_script: make use of USE_IFT varibleIru Cai
Change-Id: I0df3cf5f7793390467ce40043df1a606fdec7eb7
2019-04-12keep time to expose as original scheme when inst->needPostFetch()Iru Cai
because when inst->needPostFetch(), it means that the spec load is already issued this also fixes the mysterious bug caused by the IFT code
2019-04-12add IFT optionsIru Cai
2019-04-10add evice+reload attack codeIru Cai
2019-04-10clear taint when previous branch resolvedIru Cai
2019-04-08we need to ++loadsToVLD when (!inst->readyToExpose() && inst->needPostFetch())Iru Cai
2019-04-08implement taint propagationIru Cai
2019-04-03check loads using tainted registers, set USL dst as taintedIru Cai
2019-04-02methods to set taintIru Cai
2019-04-02add taint mapIru Cai
2019-04-02print load instIru Cai
2019-04-01fix getvaddr nullptr stuff, add a non-spec load printingis-rebase11-LSQUnitIru Cai
2019-03-26try to make out some experiment scripts for meIru Cai
2019-03-21Request::getVaddr()Iru Cai
Change-Id: Ife5c04941a9181da30e5cc692dec7cfd53feb71f
2019-03-20attack code and exp scriptIru Cai
2019-03-20invisispec-1.0 configsIru Cai
2019-03-20invisispec-1.0 sourceIru Cai
2018-12-11cpu-o3: Fix bug in LSQUnit(uint32_t, uint32_t) ctorTony Gutierrez
Change 9af1214 added a new ctor to the LSQUnit, however there is a typo/bug because it sizes the SQEntries member variable to lqEntries + 1, as opposed to sqEntries + 1. This change corrects the issue by using sqEntries. Change-Id: I19dfaa5c0e335bd7b84343a92034147d7c5d914e Reviewed-on: https://gem5-review.googlesource.com/c/15015 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-12-10systemc: Update test output for longer lived processes.Gabe Black
In the systemc spec, process handles can be invalidated if they have no children and are terminated. The implementation is not required to do so however, and for the sake of simplicity gem5 currently does not. To quote: "When the underlying process instance terminates, if the process instance has no surviving children, an implementation may choose to invalidate any associated process handles, but it is not obliged to do so." Two tests have reference output which is affected by this (legal) difference in behavior. In one case, the test creates new processes which reuse the names of processes that have been terminated. Since gem5 doesn't invalidate the old processes, a standard mechanism is activated which renames the processes to something which is unique. The other test has this same problem, and also prints the hierarchy of processes several times during the test. In that hierarchy, the terminated tests with no live children are still present, where in the old reference output they've been removed. This change updates the reference output to match gem5's behavior. Change-Id: I363448de10080bdce01a4df92f991c67b31a2401 Reviewed-on: https://gem5-review.googlesource.com/c/14919 Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de> Maintainer: Gabe Black <gabeblack@google.com>
2018-12-10systemc: Update the ordering in the reference output for some tests.Gabe Black
There are a number of cases where systemc leaves the decision of what order things happen up to the kernel, and any ordering is legal and conformant with the spec as long as it's repeatable. The reference outputs reflect a particular choice of ordering which is implementation specific, and while considerable effort has been made to make the gem5 ordering match the Accellera ordering, at a certain point that's no longer practical or desirable. This change manually updates the reference output for the tests that haven't been excluded for other reasons which have this sort of ordering problem. They have been individually examined, and as best as I can tell changing the output this way does not mask any underlying error. One or two real problems were discovered in addition to the ordering issues, and those were fixed in earlier changes. Change-Id: I915269998de3f33d5ab5d1fd754a830fd620184d Reviewed-on: https://gem5-review.googlesource.com/c/14918 Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de> Maintainer: Gabe Black <gabeblack@google.com>
2018-12-10systemc: Ignore process control functions on terminated processes.Gabe Black
These functions can descend to the children of a terminated process, but should have no effect on that process itself. Change-Id: I6e4bdec8c492dd03d05bc1397aa080e8a51397c1 Reviewed-on: https://gem5-review.googlesource.com/c/14917 Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de> Maintainer: Gabe Black <gabeblack@google.com>
2018-12-10systemc: Update signals before initing processes.Gabe Black
We were supposed to do one update phase before adding all processes which didn't have dont_initialize() called to the run queue. We were doing that in the opposite order. Change-Id: I6dd4108040d455dc78029da029a2eb5e7af819cb Reviewed-on: https://gem5-review.googlesource.com/c/14915 Reviewed-by: Matthias Jung <jungma@eit.uni-kl.de> Maintainer: Gabe Black <gabeblack@google.com>
2018-12-08base, systemc: Fix clang compilationGiacomo Travaglini
This patch is fixing the following issues: - base: typename should be used only for types - systemc: 'GCC_VERSION' is not defined for clang Change-Id: I27c94445d65691a08a0a14a0ffe6b6942f6c455f Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/14976 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-12-07mem: Compile tracePacket only when TRACING_ON is definedGiacomo Travaglini
If TRACING_ON is not defined (e.g. when building gem5.fast), clang compilations will fail reporting an unused function. Change-Id: I959dba6e9fcf74b951e16365077939ae4d4ef924 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/14975 Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-12-07mem-cache: Workaround for setWhenReady assertionDaniel R. Carvalho
Change 174da8e2da6a896d2e97bc264f9c827a0f4c35ac added an assert that is not satisfiable with current implementation, breaking some regression tests. Change-Id: Ibafaf0c51906384364f0b2a4b931f8ec6126d858 Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/14955 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-12-06ext: Remove unused bankwiseMode variableMatteo Andreozzi
Apple LLVM version 10.0.0 (clang-1000.11.45.2) complains about unused members variables Change-Id: If1f2210c09e80b632cb3688aaa7df0594f9e49c9 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/13228 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-12-06base: Ported circlebuf to CircularQueueRekai Gonzalez-Alberquilla
Ported the existing circlebuf on top of the CircularQueue to condense shared functionality and minimise code/functionality replication. Additional contributors: Gabor Dozsa. Change-Id: Ib4e67c638f0fb66b54cef77007a03439218bda7f Signed-off-by: Giacomo Gabrielli <giacomo.gabrielli@arm.com> Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/13128 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2018-12-06base: Iterable CircularQueue implementationRekai Gonzalez-Alberquilla
The former implementation of CircleBuf is functional but a bit too tailored to match a use-case. This patches introduces a new iterable circular queue, which adds some more functionality so it can also be used for the newer LSQ implementation, where iteration and iterators are a very desirable feature. Additional contributors: Gabor Dozsa. Change-Id: I5cfb95c8abc1f5e566a114acdbf23fc52a38ce5e Signed-off-by: Giacomo Gabrielli <giacomo.gabrielli@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/13127 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
2018-12-06ext: Build googlemock with googletestGiacomo Travaglini
googlemock needs to be built together with googletest. This patch is enabling it by doing the following things * Moving googletest and googlemock under the same top level directory, so that we have a single SConscript for building them. This also matches googletest directory structure: googletest |_googletest |_googlemock * Adding a shared SConscript which is building gmock and gtest as libgtest * Removing googletest/SConscript Change-Id: I88accbdd2e80fb47efaa17819233371fbad6acaa Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/14696 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-12-06ext: Import googlemock, release version 1.8.0Giacomo Travaglini
gtest 1.8.0 is already part of gem5; this patch adds a matching gmock so that it is possible to create Mocks in gem5 unit tests. Please note: the commit is just importing the source code as it is without adding any SConscript; it is hence unbuildable at the moment. Next commits will integrate the mocking framework into the gem5 build system Change-Id: Iaf05ad91b1964aac7ea37085f839027a8d34ba3e Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/14695 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-12-05arch-x86: Add sys/syscall.h to x86 process.cc/syscall_emul.ccTony Gutierrez
Change a66d12c guards the selection of getdents() in x86's process.cc file with SYS_getdents, however process.cc does not include the right header for SYS_getdents, which leads to x86 choosing the unimplemented call. This change adds sys/syscall.h to address the problem. This change also adds sys/syscall.hh to syscall_emu.cc, which only includes syscall.hh and may not be supported on all systems. Change-Id: If1adcf41e9e455de5f2827ba98c542fdcacdc22e Reviewed-on: https://gem5-review.googlesource.com/c/14775 Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2018-12-05mem-cache: Remove writebacks parameter from serviceMSHRTargetsDaniel R. Carvalho
Change 8ba77ae8fc98a355082da2bd9fdc6ecf4928f725 introduced the writebacks parameter, but it was never used. Change-Id: I225e5b399de42d77c72fc0012d3dc93ef39b8853 Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/14896 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-12-04mem-cache: Add getter and setter to CacheBlk::whenReadyDaniel R. Carvalho
Add a getter and a setter function to access CacheBlk::whenReady to encapsulate the variable and allow error checking. This error checking consists on verifying that writes to a block after it has been inserted follow a chronological order. As a side effect, tickInserted retain its value until updated, that is, it is not reset in invalidate(). Change-Id: Idc3c5a99c3f002ee9acc2424f00e554877fd3a69 Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/14715 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-12-04base: Fix fiber compilation issue for Mac OSNikos Nikoleris
Mac OS has deprecated the use of ucontext and at the moment we are using a workaround to enable it. A side-effect is that the code is marked as _POSIX_C_SOURCE and consequently <sys/mman.h> requires the code to be also marked as _DARWIN_C_SOURCE to include the definition of MAP_ANONYMOUS. Change-Id: I65550d11a0a21cd36d832a7de6320e7e3f332a9d Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/14817 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-12-04base, sim: Add missing destructorsNikos Nikoleris
Derived classes with virtual functions need to define a virtual destructor or a protected destructor otherwise calling the base class destructor has undefined behavior. This change adds a virtual distructor in the base class. Change-Id: I1c855aa56dff6585ff99b9147bdb4eb9729a0a53 Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/14815 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
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