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The TMP105 datasheet says that in Interrupt Mode (when TM==1) the device
signals an alert when the temperature equals or exceeds the T_high value and
then remains high until a device register is read or the device responds to
the SMBUS Alert Response address, or the device is put into Shutdown Mode.
Thereafter the Alert pin will only be re-signalled when temperature falls
below T_low; alert can then be cleared in the same set of ways, and the
device returns to its initial "alert when temperature goes above T_high"
mode. (If this textual description is confusing, see figure 3 in the
TI datasheet at https://www.ti.com/lit/gpn/tmp105 .)
We were misimplementing this as a simple "always alert if temperature is
above T_high or below T_low" condition, which gives a spurious alert on
startup if using the "T_high = 80 degrees C, T_low = 75 degrees C" reset
limit values.
Implement the correct (hysteresis) behaviour by tracking whether we
are currently looking for the temperature to rise over T_high or
for it to fall below T_low. Our implementation of the comparator
mode (TM==0) wasn't wrong, but rephrase it to match the way that
interrupt mode is now handled for clarity.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20201110150023.25533-3-peter.maydell@linaro.org
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The TMP105 datasheet (https://www.ti.com/lit/gpn/tmp105) says that the
power-up reset values for the T_low and T_high registers are 80 degrees C
and 75 degrees C, which are 0x500 and 0x4B0 hex according to table 5. These
values are then shifted right by four bits to give the register reset
values, since both registers store the 12 bits of temperature data in bits
[15..4] of a 16 bit register.
We were resetting these registers to zero, which is problematic for Linux
guests which enable the alert interrupt and then immediately take an
unexpected overtemperature alert because the current temperature is above
freezing...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20201110150023.25533-2-peter.maydell@linaro.org
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In commit 76346b6264a9b01979 we tried to add a configure check that
the libgio pkg-config data was correct, which builds an executable
linked against it. Unfortunately this doesn't catch the problem
(missing static library dependency info), because a "do nothing" test
source file doesn't have any symbol references that cause the linker
to pull in .o files from libgio.a, and so we don't see the "missing
symbols from libmount" error that a full QEMU link triggers.
(The ineffective test went unnoticed because of a typo that
effectively disabled libgio unconditionally, but after commit
3569a5dfc11f2 fixed that, a static link of the system emulator on
Ubuntu stopped working again.)
Improve the gio test by having the test source fragment reference a
g_dbus function (which is what is indirectly causing us to end up
wanting functions from libmount).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20201116104617.18333-1-peter.maydell@linaro.org
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Fix Coverity CID 1435957: Memory - illegal accesses (OVERRUN):
>>> Overrunning array "suffixes" of 7 8-byte elements at element
index 7 (byte offset 63) using index "idx" (which evaluates to 7).
Note, the biggest input value freq_to_str() can accept is UINT64_MAX,
which is ~18.446 EHz, less than 1000 EHz.
Reported-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Message-id: 20201101215755.2021421-1-f4bug@amsat.org
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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This patch fixes CID 1432800 by removing an unnecessary check.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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In the mtspr helper we attempt to check for "is the timer disabled"
with "if (env->ttmr & TIMER_NONE)". This is wrong because TIMER_NONE
is zero and the condition is always false (Coverity complains about
the dead code.)
The correct check would be to test whether the TTMR_M field in the
register is equal to TIMER_NONE instead. However, the
cpu_openrisc_timer_update() function checks whether the timer is
enabled (it looks at cpu->env.is_counting, which is set to 0 via
cpu_openrisc_count_stop() when the TTMR_M field is set to
TIMER_NONE), so there's no need to check for "timer disabled" in the
target/openrisc code. Instead, simply remove the dead code.
Fixes: Coverity CID 1005812
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Stafford Horne <shorne@gmail.com>
Message-id: 20201103114654.18540-1-peter.maydell@linaro.org
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In commit 5edab03d4040 we added tracepoints to the ps2 keyboard
and mouse emulation. However we didn't remove all the debug-by-printf
support. In fact there is only one printf() remaining, and it is
redundant with the trace_ps2_write_mouse() event next to it.
Remove the printf() and the now-unused DEBUG* macros.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20201101133258.4240-1-peter.maydell@linaro.org
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We should use printf format specifier "%u" instead of "%d" for
argument of type "unsigned int".
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Message-id: 20201111073651.72804-1-alex.chen@huawei.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The removal of the selection of A15MPCORE from ARM_VIRT also
removed what A15MPCORE selects, ARM_GIC. We still need ARM_GIC.
Fixes: bec3c97e0cf9 ("hw/arm/virt: Remove dependency on Cortex-A15 MPCore peripherals")
Reported-by: Miroslav Rezanina <mrezanin@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20201111143440.112763-1-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Patches for 5.2.0-rc2:
- quorum: Fix crash with rewrite-corrupted and without read-write user
- io_uring: do not use pointer after free
- file-posix: Use fallback path for -EBUSY from FALLOC_FL_PUNCH_HOLE
- iotests: Fix failure on Python 3.9 due to use of a deprecated function
- char-stdio: Fix QMP default for 'signal'
# gpg: Signature made Tue 17 Nov 2020 11:43:17 GMT
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream:
iotests/081: Test rewrite-corrupted without WRITE
iotests/081: Filter image format after testdir
quorum: Require WRITE perm with rewrite-corrupted
io_uring: do not use pointer after free
file-posix: allow -EBUSY errors during write zeros on raw block devices
iotests: Replace deprecated ConfigParser.readfp()
char-stdio: Fix QMP default for 'signal'
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Test what happens when a rewrite-corrupted quorum node performs such a
rewrite, while there is no parent that has taken the WRITE permission.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20201113211718.261671-4-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Otherwise, this breaks whenever the test directory contains the image
format (e.g. "/tmp/test-raw-file" is filtered to "/tmp/test-IMGFMT-file"
instead of "TEST_DIR").
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20201113211718.261671-3-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Using rewrite-corrupted means quorum may issue writes to its children
just from receiving read requests from its parents. Thus, it must take
the WRITE permission when rewrite-corrupted is used.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20201113211718.261671-2-mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Even though only the pointer value is only printed, it is untidy
and Coverity complains.
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20201113154102.1460459-1-pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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On Linux, fallocate(fd, FALLOC_FL_PUNCH_HOLE) when it is used on a block device,
without O_DIRECT can return -EBUSY if it races with another write to the same page.
Since this is rare and discard is not a critical operation, ignore this error
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20201111153913.41840-2-mlevitsk@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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iotest 277 fails on Fedora 33 (Python 3.9) because a deprecation warning
changes the output:
nbd-fault-injector.py:230: DeprecationWarning: This method will be
removed in future versions. Use 'parser.read_file()' instead.
In fact, readfp() has already been deprecated in Python 3.2 and the
replacement has existed since the same version, so we can now
unconditionally switch to read_file().
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20201113100602.15936-1-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Commit 02c4bdf1 tried to make signal=on the default for stdio chardevs
except for '-serial mon:stdio', but it forgot about QMP and accidentally
switched the QMP default from true (except for -nographic) to false
(always). The documentation was kept unchanged and still describes the
opposite of the old behaviour (which is an even older documentation
bug).
Fix all of this by making signal=true the default in ChardevStdio and
documenting it as such.
Fixes: 02c4bdf1d2ca8c02a9bae16398f260b5c08d08bf
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20201023101222.250147-2-kwolf@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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into staging
SD/MMC patches
- Correctly handle 2 GB SCSD Memory Cards (Bin Meng)
CI jobs result:
. https://cirrus-ci.com/build/4688743904837632
. https://gitlab.com/philmd/qemu/-/pipelines/216829732
. https://travis-ci.org/github/philmd/qemu/builds/744026099
# gpg: Signature made Tue 17 Nov 2020 10:51:13 GMT
# gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE
* remotes/philmd-gitlab/tags/sdmmc-20201117:
hw/sd: Fix 2 GiB card CSD register values
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Per the SD spec, to indicate a 2 GiB card, BLOCK_LEN shall be 1024
bytes, hence the READ_BL_LEN field in the CSD register shall be 10
instead of 9.
This fixes the acceptance test error for the NetBSD 9.0 test of the
Orange Pi PC that has an expanded SD card image of 2 GiB size.
Fixes: 6d2d4069c47e ("hw/sd: Correct the maximum size of a Standard Capacity SD Memory Card")
Reported-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-Id: <20201025152357.11865-1-bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
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'remotes/huth-gitlab/tags/pull-request-2020-11-17' into staging
* Fixes for compiling on Haiku, and add Haiku VM for compile-testing
* Update NetBSD VM to version 9.1
* Misc fixes (e.g. categorize some devices)
# gpg: Signature made Tue 17 Nov 2020 09:20:31 GMT
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* remotes/huth-gitlab/tags/pull-request-2020-11-17:
max111x: put it into the 'misc' category
nand: put it into the 'storage' category
ads7846: put it into the 'input' category
ssd0323: put it into the 'display' category
gitlab-ci: Use $CI_REGISTRY instead of hard-coding registry.gitlab.com
target/microblaze: Fix possible array out of bounds in mmu_write()
tests/vm: update NetBSD to 9.1
tests/vm: Add Haiku test based on their vagrant images
configure: Add a proper check for sys/ioccom.h and use it in tpm_ioctl.h
configure: Do not build pc-bios/optionrom on Haiku
configure: Fix the _BSD_SOURCE define for the Haiku build
qemu/bswap: Remove unused qemu_bswap_len()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The category of the max111x device is not set, put it into the 'misc'
category.
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201112125824.763182-5-ganqixin@huawei.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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The category of the nand device is not set, put it into the 'storage'
category.
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201112125824.763182-4-ganqixin@huawei.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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The category of the ads7846 device is not set, put it into the 'input'
category.
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20201112125824.763182-3-ganqixin@huawei.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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The category of the ssd0323 device is not set, put it into the 'display'
category.
Signed-off-by: Gan Qixin <ganqixin@huawei.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201112125824.763182-2-ganqixin@huawei.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Update containers.yml to use the $CI_REGISTRY variable as other files
such as edk2.yml do.
Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20201113172519.31056-1-rebecca@nuviainc.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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The size of env->mmu.regs is 3, but the range of 'rn' is [0, 5].
To avoid data access out of bounds, only if 'rn' is less than 3, we
can print env->mmu.regs[rn]. In other cases, we can print
env->mmu.regs[MMU_R_TLBX].
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-Id: <5FA10ABA.1080109@huawei.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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update NetBSD to 9.1
Signed-off-by: Brad Smith <brad@comstyle.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20201114040150.GD13329@humpty.home.comstyle.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: Alexander von Gluck IV <kallisti5@unixzen.com>
[PMD: Avoid recreating the image each time]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
[thuth: Add ninja package, /usr/bin/env hack and --disable-slirp]
Message-Id: <20201114165137.15379-5-thuth@redhat.com>
Buglink: https://bugs.launchpad.net/qemu/+bug/1715203
Signed-off-by: Thomas Huth <thuth@redhat.com>
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On Solaris and Haiku, the _IO() macros are defined in <sys/ioccom.h>.
Add a proper check for this header to our build system, and make sure
to include the header in tpm_ioctl.h to fix a build failure on Solaris
and Haiku.
Message-Id: <20201115152317.42752-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Compilation of pc-bios/optionrom fails on Haiku with:
BUILD pvh.img
ld: pvh_main.o: in function `pvh_load_kernel':
pc-bios/optionrom/pvh_main.c:73: undefined reference to `GLOBAL_OFFSET_TABLE_'
Makefile:57: recipe for target 'pvh.img' failed
make[1]: *** [pvh.img] Error 1
Let's simply disable it, like it is already done on macOS and Solaris.
Message-Id: <20201114165137.15379-3-thuth@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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The Haiku VM that we are going to add is using _BSD_SOURCE instead
of BSD_SOURCE (without initial underscore)... according to David
Carlier, the BSD_SOURCE without underscore was likely a typo, so
let's simply add the underscore there now.
This fixes the build failure with the bswapXX() macros not being
defined after including <endian.h>.
Message-Id: <20201114165137.15379-2-thuth@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Last use of qemu_bswap_len() has been removed in commit
e5fd1eb05ec ("apb: add busA qdev property to PBM PCI bridge").
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200928131934.739451-2-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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pc,vhost: fixes
Fixes all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Tue 17 Nov 2020 09:17:12 GMT
# gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg: issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream:
vhost-user-blk/scsi: Fix broken error handling for socket call
contrib/libvhost-user: Fix bad printf format specifiers
hw/i386/acpi-build: Fix maybe-uninitialized error when ACPI hotplug off
configure: mark vhost-user Linux-only
vhost-user-blk-server: depend on CONFIG_VHOST_USER
meson: move vhost_user_blk_server to meson.build
vhost-user: fix VHOST_USER_ADD/REM_MEM_REG truncation
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# meson.build
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When socket() fails, it returns -1, 0 is the normal return value and should not return error.
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: AlexChen <alex.chen@huawei.com>
Message-Id: <5F9A5B48.9030509@huawei.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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We should use printf format specifier "%u" instead of "%d" for
argument of type "unsigned int".
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Alex Chen <alex.chen@huawei.com>
Message-Id: <5FA28106.6000901@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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GCC 9.3.0 thinks that 'method' can be left uninitialized. This code
is already in the "if (bsel || pcihp_bridge_en)" block statement,
but it isn't smart enough to figure it out.
Restrict the code to be used only in the "if (bsel || pcihp_bridge_en)"
block statement to fix (on Ubuntu):
../hw/i386/acpi-build.c: In function 'build_append_pci_bus_devices':
../hw/i386/acpi-build.c:496:9: error: 'method' may be used uninitialized
in this function [-Werror=maybe-uninitialized]
496 | aml_append(parent_scope, method);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Fixes: df4008c9c59 ("piix4: don't reserve hw resources when hotplug is off globally")
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20201107194045.438027-1-philmd@redhat.com>
Acked-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The vhost-user protocol uses the Linux eventfd feature and is typically
connected to Linux kvm.ko ioeventfd and irqfd file descriptors. The
protocol specification in docs/interop/vhost-user.rst does not describe
how platforms without eventfd support work.
The QEMU vhost-user devices compile on other POSIX host operating
systems because eventfd usage is abstracted in QEMU. The libvhost-user
programs in contrib/ do not compile but we failed to notice since they
are not built by default.
Make it clear that vhost-user is only supported on Linux for the time
being. If someone wishes to support it on other platforms then the
details can be added to vhost-user.rst and CI jobs can test the feature
to prevent bitrot.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20201110171121.1265142-4-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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I interpreted CONFIG_VHOST_USER as controlling only QEMU's vhost-user
device frontends. However, virtiofsd and contrib/ vhost-user device
backends are also controlled by CONFIG_VHOST_USER. Make the
vhost-user-blk server depend on CONFIG_VHOST_USER for consistency.
Now the following error is printed when the vhost-user-blk server is
enabled without CONFIG_VHOST_USER:
$ ./configure --disable-vhost-user --enable-vhost-user-blk ...
../meson.build:761:8: ERROR: Problem encountered: vhost_user_blk_server requires vhost-user support
Suggested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20201110171121.1265142-3-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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The --enable/disable-vhost-user-blk-server options were implemented in
./configure. There has been confusion about them and part of the problem
is that the shell syntax used for setting the default value is not easy
to read. Move the option over to meson where the conditions are easier
to understand:
have_vhost_user_blk_server = (targetos == 'linux')
if get_option('vhost_user_blk_server').enabled()
if targetos != 'linux'
error('vhost_user_blk_server requires linux')
endif
elif get_option('vhost_user_blk_server').disabled() or not have_system
have_vhost_user_blk_server = false
endif
This patch does not change behavior.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20201110171121.1265142-2-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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QEMU currently truncates the mmap_offset field when sending
VHOST_USER_ADD_MEM_REG and VHOST_USER_REM_MEM_REG messages. The struct
layout looks like this:
typedef struct VhostUserMemoryRegion {
uint64_t guest_phys_addr;
uint64_t memory_size;
uint64_t userspace_addr;
uint64_t mmap_offset;
} VhostUserMemoryRegion;
typedef struct VhostUserMemRegMsg {
uint32_t padding;
/* WARNING: there is a 32-bit hole here! */
VhostUserMemoryRegion region;
} VhostUserMemRegMsg;
The payload size is calculated as follows when sending the message in
hw/virtio/vhost-user.c:
msg->hdr.size = sizeof(msg->payload.mem_reg.padding) +
sizeof(VhostUserMemoryRegion);
This calculation produces an incorrect result of only 36 bytes.
sizeof(VhostUserMemRegMsg) is actually 40 bytes.
The consequence of this is that the final field, mmap_offset, is
truncated. This breaks x86_64 TCG guests on s390 hosts. Other guest/host
combinations may get lucky if either of the following holds:
1. The guest memory layout does not need mmap_offset != 0.
2. The host is little-endian and mmap_offset <= 0xffffffff so the
truncation has no effect.
Fix this by extending the existing 32-bit padding field to 64-bit. Now
the padding reflects the actual compiler padding. This can be verified
using pahole(1).
Also document the layout properly in the vhost-user specification. The
vhost-user spec did not document the exact layout. It would be
impossible to implement the spec without looking at the QEMU source
code.
Existing vhost-user frontends and device backends continue to work after
this fix has been applied. The only change in the wire protocol is that
QEMU now sets hdr.size to 40 instead of 36. If a vhost-user
implementation has a hardcoded size check for 36 bytes, then it will
fail with new QEMUs. Both QEMU and DPDK/SPDK don't check the exact
payload size, so they continue to work.
Fixes: f1aeb14b0809e313c74244d838645ed25e85ea63 ("Transmit vhost-user memory regions individually")
Cc: Raphael Norwitz <raphael.norwitz@nutanix.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20201109174355.1069147-1-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fixes: f1aeb14b0809 ("Transmit vhost-user memory regions individually")
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
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staging
nbd patches for 2020-11-16
- silence Coverity false positive
- modernize iotests python code related to nbd
# gpg: Signature made Mon 16 Nov 2020 20:58:13 GMT
# gpg: using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg: aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A
* remotes/ericb/tags/pull-nbd-2020-11-16:
iotests: Replace deprecated ConfigParser.readfp()
nbd: Silence Coverity false positive
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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iotest 277 fails on Fedora 33 (Python 3.9) because a deprecation warning
changes the output:
nbd-fault-injector.py:230: DeprecationWarning: This method will be
removed in future versions. Use 'parser.read_file()' instead.
In fact, readfp() has already been deprecated in Python 3.2 and the
replacement has existed since the same version, so we can now
unconditionally switch to read_file().
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20201113100602.15936-1-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
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Coverity noticed (CID 1436125) that we check the return value of
nbd_extent_array_add in most places, but not at the end of
bitmap_to_extents(). The return value exists to break loops before a
future iteration, so there is nothing to check if we are already done
iterating. Adding a cast to void, plus a comment why, pacifies
Coverity.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20201111163510.713855-1-eblake@redhat.com>
[eblake: Prefer cast to void over odd && usage]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
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staging
Bug fixes
# gpg: Signature made Mon 16 Nov 2020 18:22:51 GMT
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini-gitlab/tags/for-upstream:
memory: Skip dirty tracking for un-migratable memory regions
target/i386: avoid theoretical leak on MCE injection
scsi-disk: convert more errno values back to SCSI statuses
util/vfio-helpers.c: Use ram_block_discard_disable() in qemu_vfio_open_pci()
kvm/i386: Set proper nested state format for SVM
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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It makes no sense to track dirty pages for those un-migratable memory
regions (e.g., Memory BAR region of the VFIO PCI device) and doing so
will potentially lead to some unpleasant issues during migration [1].
Skip dirty tracking for those regions by evaluating if the region is
migratable before setting dirty_log_mask (DIRTY_MEMORY_MIGRATION).
[1] https://lists.gnu.org/archive/html/qemu-devel/2020-11/msg03757.html
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Message-Id: <20201116132210.1730-1-yuzenghui@huawei.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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g_strdup_printf is used twice to write to the same variable, which
can theoretically cause a leak. In practice, it is extremely
unlikely that a guest is seeing a recursive MCE and has disabled
CR4.MCE between the first and the second error, but we can fix it
and we can also make a slight improvement on the logic: CR4.MCE=0
causes a triple fault even for a non-recursive machine check, so
let's place its test first.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Linux has some OS-specific (and sometimes weird) mappings for various SCSI
statuses and sense codes. The most important is probably RESERVATION
CONFLICT. Add them so that they can be reported back to the guest
kernel.
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Currently, when using "nvme://" for a block device, like
-drive file=nvme://0000:01:00.0/1,if=none,id=drive0 \
-device virtio-blk,drive=drive0 \
VFIO may pin all guest memory, and discarding of RAM no longer works as
expected. I was able to reproduce this easily with my
01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd
NVMe SSD Controller SM981/PM981/PM983
Similar to common VFIO, we have to disable it, making sure that:
a) virtio-balloon won't discard any memory ("silently disabled")
b) virtio-mem and nvme:// run mutually exclusive
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Wei Yang <richardw.yang@linux.intel.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20201116105947.9194-1-david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Currently, the nested state format is hardcoded to VMX. This will result
in kvm_put_nested_state() returning an error because the KVM SVM support
checks for the nested state to be KVM_STATE_NESTED_FORMAT_SVM. As a
result, kvm_arch_put_registers() errors out early.
Update the setting of the format based on the virtualization feature:
VMX - KVM_STATE_NESTED_FORMAT_VMX
SVM - KVM_STATE_NESTED_FORMAT_SVM
Also, fix the code formatting while at it.
Fixes: b16c0e20c7 ("KVM: add support for AMD nested live migration")
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <fe53d00fe0d884e812960781284cd48ae9206acc.1605546140.git.thomas.lendacky@amd.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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into staging
qemu-ga patch queue for hard-freeze
* fixes for schema data-type declarations for guest-get-disks
# gpg: Signature made Mon 16 Nov 2020 19:18:12 GMT
# gpg: using RSA key CEACC9E15534EBABB82D3FA03353C9CEF108B584
# gpg: issuer "michael.roth@amd.com"
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>" [full]
# gpg: aka "Michael Roth <mdroth@utexas.edu>" [full]
# gpg: aka "Michael Roth <mdroth@linux.vnet.ibm.com>" [full]
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D 3FA0 3353 C9CE F108 B584
* remotes/mdroth/tags/qga-pull-2020-11-16-tag:
qga: update schema for guest-get-disks 'dependents' field
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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