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2025-03-04hw/char/pl011: Improve RX flow tracing eventsPhilippe Mathieu-Daudé1-3/+4
Log FIFO use (availability and depth). Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Luc Michel <luc.michel@amd.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250220092903.3726-4-philmd@linaro.org>
2025-01-19hw/char/riscv_htif: Convert HTIF_DEBUG() to trace eventsPhilippe Mathieu-Daudé1-0/+4
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20250116223609.81594-1-philmd@linaro.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-01-13hw/char/imx_serial: Turn some DPRINTF() statements into trace eventsBernhard Beschow1-0/+5
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Bernhard Beschow <shentey@gmail.com> Message-ID: <20250111183711.2338-9-shentey@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-01-13hw/char/stm32f2xx_usart: replace print with traceNikita Shubin1-0/+6
Drop debug printing macros and replace them with according trace functions. Signed-off-by: Nikita Shubin <n.shubin@yadro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20241220111756.16511-1-nikita.shubin@maquefel.me> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-09-13hw/char/pl011: Rename RX FIFO methodsPhilippe Mathieu-Daudé1-2/+2
In preparation of having a TX FIFO, rename the RX FIFO methods. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240719181041.49545-12-philmd@linaro.org>
2024-04-25hw/char/stm32l4x5_usart: Add options for serial parameters settingArnaud Minier1-0/+1
Add a function to change the settings of the serial connection. Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240329174402.60382-4-arnaud.minier@telecom-paris.fr Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-25hw/char/stm32l4x5_usart: Enable serial read and writeArnaud Minier1-0/+7
Implement the ability to read and write characters to the usart using the serial port. The character transmission is based on the cmsdk-apb-uart implementation. Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240329174402.60382-3-arnaud.minier@telecom-paris.fr [PMM: fixed a few checkpatch nits] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-04-25hw/char: Implement STM32L4x5 USART skeletonArnaud Minier1-0/+4
Add the basic infrastructure (register read/write, type...) to implement the STM32L4x5 USART. Also create different types for the USART, UART and LPUART of the STM32L4x5 to deduplicate code and enable the implementation of different behaviors depending on the type. Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr> Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20240329174402.60382-2-arnaud.minier@telecom-paris.fr [PMM: update to new reset hold method signature; fixed a few checkpatch nits] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-11-07hw/xen: update Xen console to XenDevice modelDavid Woodhouse1-0/+8
This allows (non-primary) console devices to be created on the command line and hotplugged. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
2023-08-31hw/char/pl011: Display register name in trace eventsPhilippe Mathieu-Daudé1-2/+2
To avoid knowing the register addresses by heart, display their name along in the trace events. Since the MMIO region is 4K wide (0x1000 bytes), displaying the address with 3 digits is enough, so reduce the address format. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230522153144.30610-5-philmd@linaro.org>
2021-10-30hw/char/sh_serial: Add device id to trace outputBALATON Zoltan1-2/+2
Normally there are at least two sh_serial instances. Add device id to trace messages to make it clear which instance they belong to otherwise its not possible to tell which serial device is accessed. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <cc1f9ff9f4259ae799750e452f8871849c7a104c.1635541329.git.balaton@eik.bme.hu> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-10-30hw/sh4: Change debug printfs to tracesBALATON Zoltan1-0/+4
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <b776043e811ab3caf200515e1350bdcccd1cc47b.1635541329.git.balaton@eik.bme.hu> [PMD: Fixed format strings for 32-bit hosts] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-09-08escc: introduce escc_hard_reset_chn() for hardware resetMark Cave-Ayland1-0/+1
This new hardware reset function is to be called for both channels when the hardware reset bit is written to register WR9. Its initial implementation is the same as the existing escc_reset_chn() function used for device reset. Add a new trace event when the guest initiates a hard reset via the WR9 register to help diagnose guest reset issues. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20210903113223.19551-5-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-09-08escc: introduce escc_soft_reset_chn() for software resetMark Cave-Ayland1-0/+1
This new software reset function is to be called when the appropriate channel software reset bit is written to register WR9. Its initial implementation is the same as the existing escc_reset_chn() function used for device reset. Add a new trace event when the guest initiates a soft reset via the WR9 register to help diagnose guest reset issues. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20210903113223.19551-4-mark.cave-ayland@ilande.co.uk> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-06-02docs: fix references to docs/devel/tracing.rstStefano Garzarella1-1/+1
Commit e50caf4a5c ("tracing: convert documentation to rST") converted docs/devel/tracing.txt to docs/devel/tracing.rst. We still have several references to the old file, so let's fix them with the following command: sed -i s/tracing.txt/tracing.rst/ $(git grep -l docs/devel/tracing.txt) Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210517151702.109066-2-sgarzare@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-05-13Merge remote-tracking branch 'remotes/armbru/tags/pull-misc-2021-05-12' into ↵Peter Maydell1-17/+0
staging Miscellaneous patches for 2021-05-12 # gpg: Signature made Wed 12 May 2021 17:22:15 BST # gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653 # gpg: issuer "armbru@redhat.com" # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full] # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full] # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-misc-2021-05-12: Drop the deprecated unicore32 target Drop the deprecated lm32 target block: Drop the sheepdog block driver Remove the deprecated moxie target monitor/qmp: fix race on CHR_EVENT_CLOSED without OOB Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-12Drop the deprecated lm32 targetMarkus Armbruster1-17/+0
Target lm32 was deprecated in commit d8498005122, v5.2.0. See there for rationale. Some of its code lives on in device models derived from milkymist ones: hw/char/digic-uart.c and hw/display/bcm2835_fb.c. Cc: Michael Walle <michael@walle.cc> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20210503084034.3804963-2-armbru@redhat.com> Acked-by: Michael Walle <michael@walle.cc> [Trivial conflicts resolved, reST markup fixed]
2021-05-11hw/char: Add Shakti UART emulationVijai Kumar K1-0/+4
This is the initial implementation of Shakti UART. Signed-off-by: Vijai Kumar K <vijai@behindbytes.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20210401181457.73039-4-vijai@behindbytes.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-15hw/char: add goldfish-ttyLaurent Vivier1-0/+10
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 Michel1-0/+1
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-Daudé1-2/+2
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-Daudé1-0/+1
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 Armbruster1-1/+1
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 Hedde1-0/+3
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 Roeck1-0/+2
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 Roeck1-1/+2
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 Roeck1-0/+17
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 Armbruster1-1/+1
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 Armbruster1-12/+12
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 Suvorova1-0/+4
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-Daudé1-0/+4
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-Daudé1-0/+4
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-Ogievskiy1-6/+6
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-Daudé1-1/+1
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 Maydell1-0/+9
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 Maydell1-0/+9
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 Vivier1-1/+1
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. Berrange1-0/+49
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 v1.1 at 2025-09-20 22:35:27 +0000