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2021-03-17plugins: getting qemu_plugin_get_hwaddr only expose one function prototypeYonggang Luo1-5/+3
This is used for counting how much function are export to qemu plugin. Signed-off-by: Yonggang Luo <luoyonggang@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20201013002806.1447-2-luoyonggang@gmail.com> Message-Id: <20210312172821.31647-14-alex.bennee@linaro.org>
2021-03-17plugins: Expose physical addresses instead of device offsetsAaron Lindsay1-5/+12
This allows plugins to query for full virtual-to-physical address translation for a given `qemu_plugin_hwaddr` and stops exposing the offset within the device itself. As this change breaks the API, QEMU_PLUGIN_VERSION is incremented. Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210309202802.211756-1-aaron@os.amperecomputing.com> Message-Id: <20210312172821.31647-3-alex.bennee@linaro.org>
2021-02-18accel/tcg: allow plugin instrumentation to be disable via cflagsAlex Bennée1-11/+25
When icount is enabled and we recompile an MMIO access we end up double counting the instruction execution. To avoid this we introduce the CF_MEMI cflag which only allows memory instrumentation for the next TB (which won't yet have been counted). As this is part of the hashed compile flags we will only execute the generated TB while coming out of a cpu_io_recompile. While we are at it delete the old TODO. We might as well keep the translation handy as it's likely you will repeatedly hit it on each MMIO access. Reported-by: Aaron Lindsay <aaron@os.amperecomputing.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Tested-by: Aaron Lindsay <aaron@os.amperecomputing.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210213130325.14781-21-alex.bennee@linaro.org>
2021-02-18plugins: add API to return a name for a IO deviceAlex Bennée1-0/+20
This may well end up being anonymous but it should always be unique. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Clement Deschamps <clement.deschamps@greensocs.com> Reviewed-by: Emilio G. Cota <cota@braap.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210213130325.14781-3-alex.bennee@linaro.org>
2020-05-15qemu/qemu-plugin: Make qemu_plugin_hwaddr_is_io() hwaddr argument constPhilippe Mathieu-Daudé1-2/+2
Rename qemu_plugin_hwaddr_is_io() address argument 'haddr' similarly to qemu_plugin_hwaddr_device_offset(), and make it const. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20200510171119.20827-4-f4bug@amsat.org> Message-Id: <20200513173200.11830-4-alex.bennee@linaro.org>
2020-01-15plugins: Include trace/mem.h in api.cRichard Henderson1-0/+1
Code movement in an upcoming patch will show that this file was implicitly depending on trace/mem.h being included beforehand. Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reported-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-10-28plugin: add qemu_plugin_outs helperAlex Bennée1-0/+8
Having the plugins grab stdout and spew stuff there is a bit ugly and certainly makes the tests look ugly. Provide a hook back into QEMU which can be redirected as needed. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Aaron Lindsay <aaron@os.amperecomputing.com>
2019-10-28plugin: add qemu_plugin_insn_disas helperAlex Bennée1-1/+8
Give the plugins access to the QEMU dissasembler so they don't have to re-invent the wheel. We generate a warning when there are spare bytes in the decode buffer. This is usually due to the front end loading in more bytes than decoded. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-10-28plugins: implement helpers for resolving hwaddrAlex Bennée1-0/+49
We need to keep a local per-cpu copy of the data as other threads may be running. Currently we can provide insight as to if the access was IO or not and give the offset into a given device (usually the main RAMBlock). We store enough information to get details such as the MemoryRegion which might be useful in later expansions to the API. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-10-28plugin: add implementation of the apiAlex Bennée1-0/+277
[AJB: split from the core code commit] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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