aboutsummaryrefslogtreecommitdiff
path: root/hw/char/trace-events
AgeCommit message (Collapse)Author
2021-03-15hw/char: add goldfish-ttyLaurent Vivier
Implement the goldfish tty device as defined in https://android.googlesource.com/platform/external/qemu/+/master/docs/GOLDFISH-VIRTUAL-HARDWARE.TXT and based on the kernel driver code: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/tty/goldfish.c Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210312214145.2936082-2-laurent@vivier.eu>
2020-10-27hw/char/pl011: add a clock inputLuc Michel
Add a clock input to the PL011 UART so we can compute the current baud rate and trace it. This is intended for developers who wish to use QEMU to e.g. debug their firmware or to figure out the baud rate configured by an unknown/closed source binary. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Luc Michel <luc@lmichel.fr> Tested-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-30hw/char/serial: Rename I/O read/write trace eventsPhilippe Mathieu-Daudé
The serial_mm_read/write() handlers from the TYPE_SERIAL_MM device call the serial_ioport_read/write() handlers with shifted offset. When looking at the trace events from this MMIO device, it is confusing to read the accesses as I/O. Simplify using generic trace event names which make sense the various uses. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200907015535.827885-5-f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30hw/char/serial: Replace commented DPRINTF() by trace eventPhilippe Mathieu-Daudé
Convert the old debug PRINTF() call to display the UART baudrate to a trace event. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200907015535.827885-3-f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-09trace-events: Fix attribution of trace points to sourceMarkus Armbruster
Some trace points are attributed to the wrong source file. Happens when we neglect to update trace-events for code motion, or add events in the wrong place, or misspell the file name. Clean up with help of scripts/cleanup-trace-events.pl. Funnies requiring manual post-processing: * accel/tcg/cputlb.c trace points are in trace-events. * block.c and blockdev.c trace points are in block/trace-events. * hw/block/nvme.c uses the preprocessor to hide its trace point use from cleanup-trace-events.pl. * hw/tpm/tpm_spapr.c uses pseudo trace point tpm_spapr_show_buffer to guard debug code. * include/hw/xen/xen_common.h trace points are in hw/xen/trace-events. * linux-user/trace-events abbreviates a tedious list of filenames to */signal.c. * net/colo-compare and net/filter-rewriter.c use pseudo trace points colo_compare_miscompare and colo_filter_rewriter_debug to guard debug code. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200806141334.3646302-5-armbru@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-04-30hw/char/cadence_uart: add clock supportDamien Hedde
Switch the cadence uart to multi-phase reset and add the reference clock input. The input clock frequency is added to the migration structure. The reference clock controls the baudrate generation. If it disabled, any input characters and events are ignored. If this clock remains unconnected, the uart behaves as before (it default to a 50MHz ref clock). Signed-off-by: Damien Hedde <damien.hedde@greensocs.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20200406135251.157596-8-damien.hedde@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-23hw/char/exynos4210_uart: Add receive DMA supportGuenter Roeck
To support receive DMA, we need to inform the DMA controller if receive data is available. Otherwise the DMA controller keeps requesting data, causing receive errors. Implement this using an interrupt line. The instantiating code then needs to connect the interrupt with the matching DMA controller GPIO pin. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Message-id: 20200123052540.6132-8-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-23hw/char/exynos4210_uart: Implement Rx FIFO level triggers and timeoutsGuenter Roeck
The driver already implements a receive FIFO, but it does not handle receive FIFO trigger levels and timeout. Implement the missing functionality. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Message-id: 20200123052540.6132-7-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-23hw/char/exynos4210_uart: Convert to support tracingGuenter Roeck
Replace debug code with tracing to aid debugging. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Message-id: 20200123052540.6132-5-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-22trace-events: Fix attribution of trace points to sourceMarkus Armbruster
Some trace points are attributed to the wrong source file. Happens when we neglect to update trace-events for code motion, or add events in the wrong place, or misspell the file name. Clean up with help of cleanup-trace-events.pl. Same funnies as in the previous commit, of course. Manually shorten its change to linux-user/trace-events to */signal.c. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-id: 20190314180929.27722-6-armbru@redhat.com Message-Id: <20190314180929.27722-6-armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-03-22trace-events: Shorten file names in commentsMarkus Armbruster
We spell out sub/dir/ in sub/dir/trace-events' comments pointing to source files. That's because when trace-events got split up, the comments were moved verbatim. Delete the sub/dir/ part from these comments. Gets rid of several misspellings. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190314180929.27722-3-armbru@redhat.com Message-Id: <20190314180929.27722-3-armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-11-02hw/char: Implement nRF51 SoC UARTJulia Suvorova
Not implemented: CTS/NCTS, PSEL*. Signed-off-by: Julia Suvorova <jusual@mail.ru> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-29hw/char/parallel: Convert from pdebug() macro to trace eventsPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-06-29hw/char/serial: Convert from DPRINTF macro to trace eventsPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-08-01trace-events: fix code style: print 0x before hex numbersVladimir Sementsov-Ogievskiy
The only exception are groups of numers separated by symbols '.', ' ', ':', '/', like 'ab.09.7d'. This patch is made by the following: > find . -name trace-events | xargs python script.py where script.py is the following python script: ========================= #!/usr/bin/env python import sys import re import fileinput rhex = '%[-+ *.0-9]*(?:[hljztL]|ll|hh)?(?:x|X|"\s*PRI[xX][^"]*"?)' rgroup = re.compile('((?:' + rhex + '[.:/ ])+' + rhex + ')') rbad = re.compile('(?<!0x)' + rhex) files = sys.argv[1:] for fname in files: for line in fileinput.input(fname, inplace=True): arr = re.split(rgroup, line) for i in range(0, len(arr), 2): arr[i] = re.sub(rbad, '0x\g<0>', arr[i]) sys.stdout.write(''.join(arr)) ========================= Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Cornelia Huck <cohuck@redhat.com> Message-id: 20170731160135.12101-5-vsementsov@virtuozzo.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-07-31docs: fix broken paths to docs/devel/tracing.txtPhilippe Mathieu-Daudé
With the move of some docs/ to docs/devel/ on ac06724a71, no references were updated. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-07-17hw/char/cmsdk-apb-uart.c: Implement CMSDK APB UARTPeter Maydell
Implement a model of the simple "APB UART" provided in the Cortex-M System Design Kit (CMSDK). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1500029487-14822-3-git-send-email-peter.maydell@linaro.org Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2016-10-17hw/char/pl011: Add trace eventsPeter Maydell
Add some trace events for the pl011 UART model. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1476294876-12340-5-git-send-email-peter.maydell@linaro.org
2016-08-12trace-events: fix first line comment in trace-eventsLaurent Vivier
Documentation is docs/tracing.txt instead of docs/trace-events.txt. find . -name trace-events -exec \ sed -i "s?See docs/trace-events.txt for syntax documentation.?See docs/tracing.txt for syntax documentation.?" \ {} \; Signed-off-by: Laurent Vivier <lvivier@redhat.com> Message-id: 1470669081-17860-1-git-send-email-lvivier@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-20trace: split out trace events for hw/char/ directoryDaniel P. Berrange
Move all trace-events for files in the hw/char/ directory to their own file. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1466066426-16657-9-git-send-email-berrange@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-18 15:45:20 +0000