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Fix Issue #609 where extraneous debugging output was added when the user
invoked any simulation operation that involved addr_to_mem.
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Add a core parameter to the interactive str command. This makes it
possible for the spike user to specify the device whose memory contains
the NUL-terminated string to be printed.
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The original implementation only uses the value in first core and apply it
to other core. The patch makes the configuration hetergeneous for differenct
cores.
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
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1. setup allowed mmu-type from dts
2. change default mmu-type in dts from sv39 to sv48
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
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* Adding symbol lookup when --enable-commitlog is enabled
* Removed the #ifdef RISCV_ENABLE_COMMITLOG for all get_symbol related function
Only retained the in processor.cc where it is called.
Co-authored-by: Shajid Thiruvathodi <sthiruva@valtrix.in>
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We add bootargs command-line option to Spike which allows us to
provide custom kernel parameters to Linux and Xvisor.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
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The feature itself isn't implemented yet.
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1. pass dtb option from constructor
2. separate dtb generation from rom initialization
3. setup clint base from dtb
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
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Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
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This patch adds a --log argument to spike. If not given, the behaviour
is unchanged: messages logging execution of instructions and (if
commit logging is enabled) commits go to stderr.
If --log=P is given, Spike now writes these messages to a log file at
the path P. This is nice, because they are no longer tangled up with
other errors and warnings.
The code is mostly plumbing: passing a FILE* object through to the
functions that were using stderr. I've written a simple "log_file_t"
class, which opens a log file if necessary and yields it or stderr.
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This patch adds optional support clint timer incrementing at
real-time rate. This can be enabled by passing command line
parameter "--real-time-clint".
This feature can be used for:
1. Checking whether any code addition to Spike is slowing down
simulation too much
2. Comparing run-time for software on Spike with other functional
simulators (such as QEMU)
Signed-off-by: Anup Patel <anup.patel@wdc.com>
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Latest Linux does not boot Spike mainly because:
1. Spike does not set bootargs in DTS
2. Spike does not provide mechanism to load initrd for Linux
This patch addresses both above issues and we can now
get latest Linux to prompt on Spike.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
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It's very difficult to encounter this (need to manually place a device or
memory at very high addresses), but it is technically a Spike bug.
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* Adds --log-commits commandline option.
Similar to histogram support, the commit logging feature must be
enabled with a configure option: --enable-commitlog. However, unlike
that feature, there was no way to turn off the logging with a
commandline option once the functionality was built in. This (git)
commit provides that abilty.
* Changes addressing review feedback.
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the default vector parameters are defined in configuration time but can
be changed throught command-line option
Signed-off-by: Dave Wen <dave.wen@sifive.com>
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* Clean up debug module options.
1. Instead of passing each one a few levels deep, create
debug_module_config_t which contains them all.
2. Rename all those command line options so they start with --dm for
debug module.
3. Add --dm-no-halt-groups to disable halt group support.
* Update changelog.
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This is used to make sure that OpenOCD can work on targets that don't
support abstract access to CSR registers. It replaces a simpler hack,
which caused #266.
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* Implement hasel/hawindow support.
This should allow simultaneous resume and halt to work.
* Fix anyrunning/anyhalted bits.
* Add --without-hasel argument for testing.
* Make halt/resume times more equal.
Switching threads after every instruction executed in debug mode leads
to a lot of extra instructions being executed on the "other" thread when
both are really supposed to halt/resume near-simultaneously. Fixed that
by adding wfi to debug_rom.S, and implementing it to switch to the other
hart as well as check for JTAG input.
When resuming, write the hart ID to the debug ROM so that the DM knows
which hart actually resumed. (Before simultaneous resume it just assumed
the current one.)
Also got rid of resume symbol in debug_rom.S since it had no purpose.
* Preserve Debug ROM entry points.
* Make sure minstret is correct when wfi happens.
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Optionally make spike behave more like real hardware, to automatically
test OpenOCD's handling of such hardware.
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- Use physical addresses to avoid homonym ambiguity (closes #215)
- Yield reservation on store-conditional (https://github.com/riscv/riscv-isa-manual/commit/03a5e722fc0fe7b94dd0a49f550ff7b41a63f612)
- Don't yield reservation on exceptions (it's no longer required).
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Add debug module authentication.
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simulator/htif.
This allows the implementation of an alternative top-level simulator class.
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Off by default, enabled with --debug-auth.
The protocol is very simple (definitely not secure) to allow debuggers
to test their authentication feature. To authenticate a debugger must:
1. Read authdata
2. Write to authdata the value that it just read, plus 1
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This lets the user control whether the system bus access implements bus
mastering.
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Also add an implicit ebreak after the program buffer. This is not part
of the spec, but hopefully it will be.
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Support for non-contiguous hartids
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I wanted to actually put the address of the HTIF into the DTS, but that
seems to be a bit too much work: since the HTIF addresses are just
defined in an ELF file it's a bit awkward to make that work.
Instead, I'm just putting a dummy HTIF key in the DTS.
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