| Age | Commit message (Collapse) | Author |
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Currently, we split the write commands' data from the middle. If it does not
work, try to move the pivot left by one byte and retry until there is no
space.
But, this method has two flaws:
1. It may fail to trim all unnecessary bytes on the right side.
For example, there is an IO write command:
write addr uuxxxxuu
u is the unnecessary byte for the crash. Unlike ram write commands, in most
case, a split IO write won't trigger the same crash, So if we split from the
middle, we will get:
write addr uu (will be removed in next round)
write addr xxxxuu
For xxxxuu, since split it from the middle and retry to the leftmost byte
won't get the same crash, we will be stopped from removing the last two
bytes.
2. The algorithm complexity is O(n) since we move the pivot byte by byte.
To solve the first issue, we can try a symmetrical position on the right if
we fail on the left. As for the second issue, instead moving by one byte, we
can approach the boundary exponentially, achieving O(log(n)).
Give an example:
xxxxuu len=6
+
|
+
xxx,xuu 6/2=3 fail
+
+--------------+-------------+
| |
+ +
xx,xxuu 6/2^2=1 fail xxxxu,u 6-1=5 success
+ +
+------------------+----+ |
| | +-------------+ u removed
+ +
xx,xxu 5/2=2 fail xxxx,u 6-2=4 success
+
|
+-----------+ u removed
In some rare cases, this algorithm will fail to trim all unnecessary bytes:
xxxxxxxxxuxxxxxx
xxxxxxxx-xuxxxxxx Fail
xxxx-xxxxxuxxxxxx Fail
xxxxxxxxxuxx-xxxx Fail
...
I think the trade-off is worth it.
Signed-off-by: Qiuhao Li <Qiuhao.Li@outlook.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <SYCPR01MB3502D26F1BEB680CBBC169E5FCAB0@SYCPR01MB3502.ausprd01.prod.outlook.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Instead of removing IO instructions one by one, we can try deleting multiple
instructions at once. According to the locality of reference, we double the
number of instructions to remove for the next round and recover it to one
once we fail.
This patch is usually significant for large input.
Test with quadrupled trace input at:
https://bugs.launchpad.net/qemu/+bug/1890333/comments/1
Patched 1/6 version:
real 0m45.904s
user 0m16.874s
sys 0m10.042s
Refined version:
real 0m11.412s
user 0m6.888s
sys 0m3.325s
Signed-off-by: Qiuhao Li <Qiuhao.Li@outlook.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <SYCPR01MB350280A67BB55C3FADF173E3FCAB0@SYCPR01MB3502.ausprd01.prod.outlook.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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We spend much time waiting for the timeout program during the minimization
process until it passes a time limit. This patch hacks the CLOSED (indicates
the redirection file closed) notification in QTest's output if it doesn't
crash.
Test with quadrupled trace input at:
https://bugs.launchpad.net/qemu/+bug/1890333/comments/1
Original version:
real 1m37.246s
user 0m13.069s
sys 0m8.399s
Refined version:
real 0m45.904s
user 0m16.874s
sys 0m10.042s
Note:
Sometimes the mutated or the same trace may trigger a different crash
summary (second-to-last line) but indicates the same bug. For example, Bug
1910826 [1], which will trigger a stack overflow, may output summaries
like:
SUMMARY: AddressSanitizer: stack-overflow
/home/qiuhao/hack/qemu/build/../softmmu/physmem.c:488 in
flatview_do_translate
or
SUMMARY: AddressSanitizer: stack-overflow
(/home/qiuhao/hack/qemu/build/qemu-system-i386+0x27ca049) in __asan_memcpy
Etc.
If we use the whole summary line as the token, we may be prevented from
further minimization. So in this patch, we only use the first three words
which indicate the type of crash:
SUMMARY: AddressSanitizer: stack-overflow
[1] https://bugs.launchpad.net/qemu/+bug/1910826
Signed-off-by: Qiuhao Li <Qiuhao.Li@outlook.com>
Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
Tested-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <SYCPR01MB350251DC04003450348FAF68FCAB0@SYCPR01MB3502.ausprd01.prod.outlook.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Commit dfbd0b873a8 inadvertently swapped the arguments
of _aligned_malloc(), correct it to fix [*]:
G_TEST_SRCDIR=C:/Users/ContainerAdministrator/AppData/Local/Temp/cirrus-ci-build/tests
G_TEST_BUILDDIR=C:/Users/ContainerAdministrator/AppData/Local/Temp/cirrus-ci-build/build/tests
tests/test-qht.exe --tap -k
ERROR test-qht - too few tests run (expected 2, got 0)
make: *** [Makefile.mtest:256: run-test-30] Error 1
[*] https://cirrus-ci.com/task/6055645751279616?command=test#L593
Fixes: dfbd0b873a8 ("util/oslib-win32: Use _aligned_malloc for qemu_try_memalign")
Reported-by: Yonggang Luo <luoyonggang@gmail.com>
Reported-by: Volker Rümelin <vr_qemu@t-online.de>
Suggested-by: Volker Rümelin <vr_qemu@t-online.de>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Message-Id: <20210111001606.1122983-1-f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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When the length of mname is less than 5, memcpy("xenfv", mname, 5) will cause
heap buffer overflow. Therefore, use strncmp to avoid this problem.
The asan showed stack:
ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000f2f4 at
pc 0x7f65d8cc2225 bp 0x7ffe93cc5a60 sp 0x7ffe93cc5208 READ of size 5 at
0x60200000f2f4 thread T0
#0 0x7f65d8cc2224 in memcmp (/lib64/libasan.so.5+0xdf224)
#1 0x5632c20be95b in qtest_cb_for_every_machine tests/qtest/libqtest.c:1282
#2 0x5632c20b7995 in main tests/qtest/test-hmp.c:160
#3 0x7f65d88fed42 in __libc_start_main (/lib64/libc.so.6+0x26d42)
#4 0x5632c20b72cd in _start (build/tests/qtest/test-hmp+0x542cd)
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20210106050625.518041-1-ganqixin@huawei.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Add build-system-opensuse jobs and opensuse-leap.docker dockerfile.
Use openSUSE Leap 15.2 container image in the gitlab-CI.
Signed-off-by: Cho, Yu-Chen <acho@suse.com>
Tested-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20201229085046.8536-1-acho@suse.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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'remotes/pmaydell/tags/pull-target-arm-20210108' into staging
target-arm queue:
* intc/arm_gic: Fix gic_irq_signaling_enabled() for vCPUs
* target/arm: Fix MTE0_ACTIVE
* target/arm: Implement v8.1M and Cortex-M55 model
* hw/arm/highbank: Drop dead KVM support code
* util/qemu-timer: Make timer_free() imply timer_del()
* various devices: Use ptimer_free() in finalize function
* docs/system: arm: Add sabrelite board description
* sabrelite: Minor fixes to allow booting U-Boot
# gpg: Signature made Fri 08 Jan 2021 15:34:25 GMT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20210108: (23 commits)
docs/system: arm: Add sabrelite board description
hw/arm: sabrelite: Connect the Ethernet PHY at address 6
hw/msic: imx6_ccm: Correct register value for silicon type
hw/misc: imx6_ccm: Update PMU_MISC0 reset value
exynos4210_mct: Use ptimer_free() in the finalize function to avoid memleaks
musicpal: Use ptimer_free() in the finalize function to avoid memleaks
mss-timer: Use ptimer_free() in the finalize function to avoid memleaks
exynos4210_pwm: Use ptimer_free() in the finalize function to avoid memleaks
exynos4210_rtc: Use ptimer_free() in the finalize function to avoid memleaks
allwinner-a10-pit: Use ptimer_free() in the finalize function to avoid memleaks
digic-timer: Use ptimer_free() in the finalize function to avoid memleaks
target/arm: Remove timer_del()/timer_deinit() before timer_free()
Remove superfluous timer_del() calls
scripts/coccinelle: New script to remove unnecessary timer_del() calls
util/qemu-timer: Make timer_free() imply timer_del()
hw/arm/highbank: Drop dead KVM support code
target/arm: Implement Cortex-M55 model
target/arm: Implement FPCXT_NS fp system register
target/arm: Correct store of FPSCR value via FPCXT_S
hw/intc/armv7m_nvic: Correct handling of CCR.BFHFNMIGN
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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This adds the target guide for SABRE Lite board, and documents how
to boot a Linux kernel and U-Boot bootloader.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20210106063504.10841-5-bmeng.cn@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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At present, when booting U-Boot on QEMU sabrelite, we see:
Net: Board Net Initialization Failed
No ethernet found.
U-Boot scans PHY at address 4/5/6/7 (see board_eth_init() in the
U-Boot source: board/boundary/nitrogen6x/nitrogen6x.c). On the real
board, the Ethernet PHY is at address 6. Adjust this by updating the
"fec-phy-num" property of the fsl_imx6 SoC object.
With this change, U-Boot sees the PHY but complains MAC address:
Net: using phy at 6
FEC [PRIME]
Error: FEC address not set.
This is due to U-Boot tries to read the MAC address from the fuse,
which QEMU does not have any valid content filled in. However this
does not prevent the Ethernet from working in QEMU. We just need to
set up the MAC address later in the U-Boot command shell, by:
=> setenv ethaddr 00:11:22:33:44:55
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20210106063504.10841-4-bmeng.cn@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Currently when U-Boot boots, it prints "??" for i.MX processor:
CPU: Freescale i.MX?? rev1.0 at 792 MHz
The register that was used to determine the silicon type is
undocumented in the latest IMX6DQRM (Rev. 6, 05/2020), but we
can refer to get_cpu_rev() in arch/arm/mach-imx/mx6/soc.c in
the U-Boot source codes that USB_ANALOG_DIGPROG is used.
Update its reset value to indicate i.MX6Q.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20210106063504.10841-3-bmeng.cn@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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U-Boot expects PMU_MISC0 register bit 7 is set (see init_bandgap()
in arch/arm/mach-imx/mx6/soc.c) during boot. This bit indicates the
bandgap has stabilized.
With this change, the latest upstream U-Boot (v2021.01-rc3) for imx6
sabrelite board (mx6qsabrelite_defconfig), with a slight change made
by switching CONFIG_OF_SEPARATE to CONFIG_OF_EMBED, boots to U-Boot
shell on QEMU with the following command:
$ qemu-system-arm -M sabrelite -smp 4 -m 1G -kernel u-boot \
-display none -serial null -serial stdio
Boot log below:
U-Boot 2021.01-rc3 (Dec 12 2020 - 17:40:02 +0800)
CPU: Freescale i.MX?? rev1.0 at 792 MHz
Reset cause: POR
Model: Freescale i.MX6 Quad SABRE Lite Board
Board: SABRE Lite
I2C: ready
DRAM: 1 GiB
force_idle_bus: sda=0 scl=0 sda.gp=0x5c scl.gp=0x55
force_idle_bus: failed to clear bus, sda=0 scl=0
force_idle_bus: sda=0 scl=0 sda.gp=0x6d scl.gp=0x6c
force_idle_bus: failed to clear bus, sda=0 scl=0
force_idle_bus: sda=0 scl=0 sda.gp=0xcb scl.gp=0x5
force_idle_bus: failed to clear bus, sda=0 scl=0
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... *** Warning - No block device, using default environment
In: serial
Out: serial
Err: serial
Net: Board Net Initialization Failed
No ethernet found.
starting USB...
Bus usb@2184000: usb dr_mode not found
USB EHCI 1.00
Bus usb@2184200: USB EHCI 1.00
scanning bus usb@2184000 for devices... 1 USB Device(s) found
scanning bus usb@2184200 for devices... 1 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
scanning usb for ethernet devices... 0 Ethernet Device(s) found
Hit any key to stop autoboot: 0
=>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20210106063504.10841-2-bmeng.cn@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When running device-introspect-test, a memory leak occurred in the
exynos4210_mct_init function, so use ptimer_free() in the finalize function to
avoid it.
ASAN shows memory leak stack:
Indirect leak of 96 byte(s) in 1 object(s) allocated from:
#0 0xffffab97e1f0 in __interceptor_calloc (/lib64/libasan.so.5+0xee1f0)
#1 0xffffab256800 in g_malloc0 (/lib64/libglib-2.0.so.0+0x56800)
#2 0xaaabf555db78 in ptimer_init /qemu/hw/core/ptimer.c:432
#3 0xaaabf56b01a0 in exynos4210_mct_init /qemu/hw/timer/exynos4210_mct.c:1505
#4 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#5 0xaaabf633a1e0 in object_new_with_type /qemu/qom/object.c:729
#6 0xaaabf6375e40 in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:153
#7 0xaaabf653d8ec in qmp_marshal_device_list_properties /qemu/qapi/qapi-commands-qdev.c:59
#8 0xaaabf6587d08 in do_qmp_dispatch_bh /qemu/qapi/qmp-dispatch.c:110
#9 0xaaabf6552708 in aio_bh_call /qemu/util/async.c:136
#10 0xaaabf6552708 in aio_bh_poll /qemu/util/async.c:164
#11 0xaaabf655f19c in aio_dispatch /qemu/util/aio-posix.c:381
#12 0xaaabf65523f4 in aio_ctx_dispatch /qemu/util/async.c:306
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When running device-introspect-test, a memory leak occurred in the
mv88w8618_pit_init function, so use ptimer_free() in the finalize function to
avoid it.
ASAN shows memory leak stack:
Indirect leak of 192 byte(s) in 4 object(s) allocated from:
#0 0xffffab97e1f0 in __interceptor_calloc (/lib64/libasan.so.5+0xee1f0)
#1 0xffffab256800 in g_malloc0 (/lib64/libglib-2.0.so.0+0x56800)
#2 0xaaabf555db84 in timer_new_full /qemu/include/qemu/timer.h:523
#3 0xaaabf555db84 in timer_new /qemu/include/qemu/timer.h:544
#4 0xaaabf555db84 in timer_new_ns /qemu/include/qemu/timer.h:562
#5 0xaaabf555db84 in ptimer_init /qemu/hw/core/ptimer.c:433
#6 0xaaabf5bb2290 in mv88w8618_timer_init /qemu/hw/arm/musicpal.c:862
#7 0xaaabf5bb2290 in mv88w8618_pit_init /qemu/hw/arm/musicpal.c:954
#8 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#9 0xaaabf633a1e0 in object_new_with_type /qemu/qom/object.c:729
#10 0xaaabf6375e40 in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:153
#11 0xaaabf5a95540 in qdev_device_help /qemu/softmmu/qdev-monitor.c:283
#12 0xaaabf5a96940 in qmp_device_add /qemu/softmmu/qdev-monitor.c:801
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When running device-introspect-test, a memory leak occurred in the
mss_timer_init function, so use ptimer_free() in the finalize function to avoid
it.
ASAN shows memory leak stack:
Indirect leak of 192 byte(s) in 2 object(s) allocated from:
#0 0xffffab97e1f0 in __interceptor_calloc (/lib64/libasan.so.5+0xee1f0)
#1 0xffffab256800 in g_malloc0 (/lib64/libglib-2.0.so.0+0x56800)
#2 0xaaabf555db78 in ptimer_init /qemu/hw/core/ptimer.c:432
#3 0xaaabf58a0010 in mss_timer_init /qemu/hw/timer/mss-timer.c:235
#4 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#5 0xaaabf633ca04 in object_initialize_child_with_propsv /qemu/qom/object.c:564
#6 0xaaabf633cc08 in object_initialize_child_with_props /qemu/qom/object.c:547
#7 0xaaabf5b8316c in m2sxxx_soc_initfn /qemu/hw/arm/msf2-soc.c:70
#8 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#9 0xaaabf633a1e0 in object_new_with_type /qemu/qom/object.c:729
#10 0xaaabf6375e40 in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:153
#11 0xaaabf653d8ec in qmp_marshal_device_list_properties /qemu/qapi/qapi-commands-qdev.c:59
#12 0xaaabf6587d08 in do_qmp_dispatch_bh /qemu/qapi/qmp-dispatch.c:110
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When running device-introspect-test, a memory leak occurred in the
exynos4210_pwm_init function, so use ptimer_free() in the finalize function to
avoid it.
ASAN shows memory leak stack:
Indirect leak of 240 byte(s) in 5 object(s) allocated from:
#0 0xffffab97e1f0 in __interceptor_calloc (/lib64/libasan.so.5+0xee1f0)
#1 0xffffab256800 in g_malloc0 (/lib64/libglib-2.0.so.0+0x56800)
#2 0xaaabf555db84 in timer_new_full /qemu/include/qemu/timer.h:523
#3 0xaaabf555db84 in timer_new /qemu/include/qemu/timer.h:544
#4 0xaaabf555db84 in timer_new_ns /qemu/include/qemu/timer.h:562
#5 0xaaabf555db84 in ptimer_init /qemu/hw/core/ptimer.c:433
#6 0xaaabf56a36cc in exynos4210_pwm_init /qemu/hw/timer/exynos4210_pwm.c:401
#7 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#8 0xaaabf633a1e0 in object_new_with_type /qemu/qom/object.c:729
#9 0xaaabf6375e40 in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:153
#10 0xaaabf653d8ec in qmp_marshal_device_list_properties /qemu/qapi/qapi-commands-qdev.c:59
#11 0xaaabf6587d08 in do_qmp_dispatch_bh /qemu/qapi/qmp-dispatch.c:110
#12 0xaaabf6552708 in aio_bh_call /qemu/util/async.c:136
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When running device-introspect-test, a memory leak occurred in the
exynos4210_rtc_init function, so use ptimer_free() in the finalize function to
avoid it.
ASAN shows memory leak stack:
Indirect leak of 96 byte(s) in 1 object(s) allocated from:
#0 0xffffab97e1f0 in __interceptor_calloc (/lib64/libasan.so.5+0xee1f0)
#1 0xffffab256800 in g_malloc0 (/lib64/libglib-2.0.so.0+0x56800)
#2 0xaaabf555db78 in ptimer_init /qemu/hw/core/ptimer.c:432
#3 0xaaabf57b3934 in exynos4210_rtc_init /qemu/hw/rtc/exynos4210_rtc.c:567
#4 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#5 0xaaabf633a1e0 in object_new_with_type /qemu/qom/object.c:729
#6 0xaaabf6375e40 in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:153
#7 0xaaabf653d8ec in qmp_marshal_device_list_properties /qemu/qapi/qapi-commands-qdev.c:59
#8 0xaaabf6587d08 in do_qmp_dispatch_bh /qemu/qapi/qmp-dispatch.c:110
#9 0xaaabf6552708 in aio_bh_call /qemu/util/async.c:136
#10 0xaaabf6552708 in aio_bh_poll /qemu/util/async.c:164
#11 0xaaabf655f19c in aio_dispatch /qemu/util/aio-posix.c:381
#12 0xaaabf65523f4 in aio_ctx_dispatch /qemu/util/async.c:306
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When running device-introspect-test, a memory leak occurred in the a10_pit_init
function, so use ptimer_free() in the finalize function to avoid it.
ASAN shows memory leak stack:
Indirect leak of 288 byte(s) in 6 object(s) allocated from:
#0 0xffffab97e1f0 in __interceptor_calloc (/lib64/libasan.so.5+0xee1f0)
#1 0xffffab256800 in g_malloc0 (/lib64/libglib-2.0.so.0+0x56800)
#2 0xaaabf555db84 in timer_new_full /qemu/include/qemu/timer.h:523
#3 0xaaabf555db84 in timer_new /qemu/include/qemu/timer.h:544
#4 0xaaabf555db84 in timer_new_ns /qemu/include/qemu/timer.h:562
#5 0xaaabf555db84 in ptimer_init /qemu/hw/core/ptimer.c:433
#6 0xaaabf57415e8 in a10_pit_init /qemu/hw/timer/allwinner-a10-pit.c:278
#7 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#8 0xaaabf633ca04 in object_initialize_child_with_propsv /qemu/qom/object.c:564
#9 0xaaabf633cc08 in object_initialize_child_with_props /qemu/qom/object.c:547
#10 0xaaabf5b94680 in aw_a10_init /qemu/hw/arm/allwinner-a10.c:49
#11 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#12 0xaaabf633a1e0 in object_new_with_type /qemu/qom/object.c:729
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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When running device-introspect-test, a memory leak occurred in the
digic_timer_init function, so use ptimer_free() in the finalize function to
avoid it.
ASAN shows memory leak stack:
Indirect leak of 288 byte(s) in 3 object(s) allocated from:
#0 0xffffab97e1f0 in __interceptor_calloc (/lib64/libasan.so.5+0xee1f0)
#1 0xffffab256800 in g_malloc0 (/lib64/libglib-2.0.so.0+0x56800)
#2 0xaaabf555db78 in ptimer_init /qemu/hw/core/ptimer.c:432
#3 0xaaabf5b04084 in digic_timer_init /qemu/hw/timer/digic-timer.c:142
#4 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#5 0xaaabf633ca04 in object_initialize_child_with_propsv /qemu/qom/object.c:564
#6 0xaaabf633cc08 in object_initialize_child_with_props /qemu/qom/object.c:547
#7 0xaaabf5b40e84 in digic_init /qemu/hw/arm/digic.c:46
#8 0xaaabf6339f6c in object_initialize_with_type /qemu/qom/object.c:515
#9 0xaaabf633a1e0 in object_new_with_type /qemu/qom/object.c:729
#10 0xaaabf6375e40 in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:153
#11 0xaaabf653d8ec in qmp_marshal_device_list_properties /qemu/qapi/qapi-commands-qdev.c:59
#12 0xaaabf6587d08 in do_qmp_dispatch_bh /qemu/qapi/qmp-dispatch.c:110
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The Arm CPU finalize function uses a sequence of timer_del(), timer_deinit(),
timer_free() to free the timer. The timer_deinit() step in this was always
unnecessary, and now the timer_del() is implied by timer_free(), so we can
collapse this down to simply calling timer_free().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201215154107.3255-5-peter.maydell@linaro.org
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This commit is the result of running the timer-del-timer-free.cocci
script on the whole source tree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201215154107.3255-4-peter.maydell@linaro.org
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Now that timer_free() implicitly calls timer_del(), sequences
timer_del(mytimer);
timer_free(mytimer);
can be simplified to just
timer_free(mytimer);
Add a Coccinelle script to do this transformation.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201215154107.3255-3-peter.maydell@linaro.org
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Currently timer_free() is a simple wrapper for g_free(). This means
that the timer being freed must not be currently active, as otherwise
QEMU might crash later when the active list is processed and still
has a pointer to freed memory on it. As a result almost all calls to
timer_free() are preceded by a timer_del() call, as can be seen in
the output of
git grep -B1 '\<timer_free\>'
This is unfortunate API design as it makes it easy to accidentally
misuse (by forgetting the timer_del()), and the correct use is
annoyingly verbose.
Make timer_free() imply a timer_del().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201215154107.3255-2-peter.maydell@linaro.org
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Support for running KVM on 32-bit Arm hosts was removed in commit
82bf7ae84ce739e. You can still run a 32-bit guest on a 64-bit Arm
host CPU, but because Arm KVM requires the host and guest CPU types
to match, it is not possible to run a guest that requires a Cortex-A9
or Cortex-A15 CPU there. That means that the code in the
highbank/midway board models to support KVM is no longer used, and we
can delete it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201215144215.28482-1-peter.maydell@linaro.org
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Now that we have implemented all the features needed by the v8.1M
architecture, we can add the model of the Cortex-M55. This is the
configuration without MVE support; we'll add MVE later.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201210201433.26262-5-peter.maydell@linaro.org
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Implement the v8.1M FPCXT_NS floating-point system register. This is
a little more complicated than FPCXT_S, because it has specific
handling for "current FP state is inactive", and it only wants to do
PreserveFPState(), not the full set of actions done by
ExecuteFPCheck() which vfp_access_check() implements.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201210201433.26262-4-peter.maydell@linaro.org
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In commit 64f863baeedc8659 we implemented the v8.1M FPCXT_S register,
but we got the write behaviour wrong. On read, this register reads
bits [27:0] of FPSCR plus the CONTROL.SFPA bit. On write, it doesn't
just write back those bits -- it writes a value to the whole FPSCR,
whose upper 4 bits are zeroes.
We also incorrectly implemented the write-to-FPSCR as a simple store
to vfp.xregs; this skips the "update the softfloat flags" part of
the vfp_set_fpscr helper so the value would read back correctly but
not actually take effect.
Fix both of these things by doing a complete write to the FPSCR
using the helper function.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201210201433.26262-3-peter.maydell@linaro.org
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The CCR is a register most of whose bits are banked between security
states but where BFHFNMIGN is not, and we keep it in the non-secure
entry of the v7m.ccr[] array. The logic which tries to handle this
bit fails to implement the "RAZ/WI from Nonsecure if AIRCR.BFHFNMINS
is zero" requirement; correct the omission.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201210201433.26262-2-peter.maydell@linaro.org
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In 50244cc76abc we updated mte_check_fail to match the ARM
pseudocode, using the correct EL to select the TCF field.
But we failed to update MTE0_ACTIVE the same way, which led
to g_assert_not_reached().
Cc: qemu-stable@nongnu.org
Buglink: https://bugs.launchpad.net/bugs/1907137
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201221204426.88514-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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virt machine's 'smp_cpus' and machine->smp.cpus must always have the
same value. And, anywhere we have virt machine state we have machine
state. So let's remove the redundancy. Also, to make it easier to see
that machine->smp is the true source for "smp_cpus" and "max_cpus",
avoid passing them in function parameters, preferring instead to get
them from the state.
No functional change intended.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Reviewed-by: Ying Fang <fangying1@huawei.com>
Message-id: 20201215174815.51520-1-drjones@redhat.com
[PMM: minor formatting tweak to smp_cpus variable declaration]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Correct the indexing into s->cpu_ctlr for vCPUs.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20201214222154.3480243-2-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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into staging
Build fix for ppc64 centos7.
Reduce the use of scratch registers for tcg/i386.
Use _aligned_malloc for Win32.
Enable split w^x code gen buffers.
# gpg: Signature made Thu 07 Jan 2021 20:06:38 GMT
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth-gitlab/tags/pull-tcg-20210107: (47 commits)
tcg: Constify TCGLabelQemuLdst.raddr
tcg: Constify tcg_code_gen_epilogue
tcg: Remove TCG_TARGET_SUPPORT_MIRROR
tcg/arm: Support split-wx code generation
tcg/mips: Support split-wx code generation
tcg/mips: Do not assert on relocation overflow
accel/tcg: Add mips support to alloc_code_gen_buffer_splitwx_memfd
tcg/riscv: Support split-wx code generation
tcg/riscv: Remove branch-over-branch fallback
tcg/riscv: Fix branch range checks
tcg/s390: Support split-wx code generation
tcg/s390: Use tcg_tbrel_diff
tcg/sparc: Support split-wx code generation
tcg/sparc: Use tcg_tbrel_diff
tcg/ppc: Support split-wx code generation
tcg/ppc: Use tcg_out_mem_long to reset TCG_REG_TB
tcg/ppc: Use tcg_tbrel_diff
tcg: Introduce tcg_tbrel_diff
tcg/tci: Push const down through bytecode reading
disas: Push const down through host disassembly
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Now that all native tcg hosts support splitwx,
make this pointer const.
Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Now that all native tcg hosts support splitwx,
make this pointer const.
Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Now that all native tcg hosts support splitwx, remove the define.
Replace the one use with a test for CONFIG_TCG_INTERPRETER.
Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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This target was not updated with 7ecd02a06f8, and so did
not allow re-compilation with relocation overflow.
Remove reloc_26 and reloc_26_val as unused.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Re-use the 256MiB region handling from alloc_code_gen_buffer_anon,
and replace that with the shared file mapping.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Since 7ecd02a06f8, we are prepared to re-start code generation
with a smaller TB if a relocation is out of range. We no longer
need to leave a nop in the stream Just In Case.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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The offset even checks were folded into the range check incorrectly.
By offsetting by 1, and not decrementing the width, we silently
allowed out of range branches.
Assert that the offset is always even instead. Move tcg_out_goto
down into the CONFIG_SOFTMMU block so that it is not unused.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Use tcg_tbrel_diff when we need a displacement to a label,
and with a NULL argument when we need the normalizing addend.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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The maximum TB code gen size is UINT16_MAX, which the current
code does not support. Use our utility function to optimally
add an arbitrary constant.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Use tcg_tbrel_diff when we need a displacement to a label,
and with a NULL argument when we need the normalizing addend.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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