Commit Graph

88999 Commits (40c4a5533f2d6f268947acdb3e506d81a53ebe66)

Author SHA1 Message Date
Gerd Hoffmann 819b8b13c1 modules: add tracepoints
One for module load and one for qom type lookup.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-18-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann 5111edaf9e modules: use modinfo for qemu opts load
Use module database to figure which module adds given QemuOpts group.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-17-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann 9f4a0f0978 modules: use modinfo for qom load
Use module database to figure which module implements a given QOM type.
Drop hard-coded object list.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-16-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann e897b9a735 modules: use modinfo for dependencies
Use module database for module dependencies.
Drop hard-coded dependency list.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-15-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann f8ade0dc01 modules: add block module annotations
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-14-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann 8245782fd2 modules: add s390x module annotations
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-13-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann b36ae1c1a2 modules: add ui module annotations
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-12-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann be4bf77c9c modules: add ccid module annotations
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-11-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann 320f483333 modules: add usb-redir module annotations
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-10-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann f6b12dfd80 modules: add audio module annotations
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-9-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann 882273d953 modules: add chardev module annotations
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-8-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann 561d0f4568 modules: add virtio-gpu module annotations
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-7-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann ec604e0a8a modules: add qxl module annotations
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-6-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Jose R. Ziviani af19eecf84 modules: check if all dependencies can be satisfied
Verifies if all dependencies are correctly listed in the modinfo.c too
and stop the builds if they're not.

Signed-off-by: Jose R. Ziviani <jziviani@suse.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-5-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann 5ebbfecc3e modules: generate modinfo.c
Add script to generate C source with a small
database containing the module meta-data.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-4-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann f5723ab665 modules: collect module meta-data
Add script to collect the module meta-data from the source code,
store the results in *.modinfo files.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-3-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann 22524c10c4 modules: add modinfo macros
Add macros for module info annotations.

Instead of having that module meta-data stored in lists in util/module.c
place directly in the module source code.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-2-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:22 +02:00
Paolo Bonzini 7db492a1b6 osdep: fix HAVE_BROKEN_SIZE_MAX case
While config-host.mak entries are expanded to "1" for compatibility with
create-config.sh, tests done directly in meson.build expand to the empty
string and cannot be placed to the right of the && operator.  Adjust
osdep.h after commit e46bd55d9c ("configure: convert HAVE_BROKEN_SIZE_MAX
to meson", 2021-07-06) changed the way HAVE_BROKEN_SIZE_MAX is defined.

Reported-by: Frederic Bezies <fredbezies@gmail.com>
Fixes: e46bd55d9c ("configure: convert HAVE_BROKEN_SIZE_MAX to meson", 2021-07-06)
Resolves: #463
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:19:00 +02:00
Paolo Bonzini 63a7f85306 meson: fix missing preprocessor symbols
While most libraries do not need a CONFIG_* symbol because the
"when:" clauses are enough, some do.  Add them back or stop
using them if possible.

In the case of libpmem, the statement to add the CONFIG_* symbol
was still in configure, but could not be triggered because it
checked for "no" instead of "disabled" (and it would be wrong anyway
since the test for the library has not been done yet).

Reported-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Fixes: 587d59d6cc ("configure, meson: convert virgl detection to meson", 2021-07-06)
Fixes: 83ef16821a ("configure, meson: convert libdaxctl detection to meson", 2021-07-06)
Fixes: e36e8c70f6 ("configure, meson: convert libpmem detection to meson", 2021-07-06)
Fixes: 53c22b68e3 ("configure, meson: convert liburing detection to meson", 2021-07-06)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:19:00 +02:00
Miroslav Rezanina 5cd5d8a71a configure: fix libpmem configuration option
For some reason, libpmem option setting was set to work in an opposite
way (--enable-libpmem disabled it and vice versa). Fixing this so
configuration works properly.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Connor Kuehl <ckuehl@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Connor Kuehl <ckuehl@redhat.com>
Message-Id: <20210707075144.82717-1-mrezanin@redhat.com>
Fixes: e36e8c70f6 ("configure, meson: convert libpmem detection to meson", 2021-07-06)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:19:00 +02:00
Miroslav Rezanina 12033e16e9 configure: fix libdaxctl options
For some reason, libdaxctl option setting was set to work in an opposite
way (--enable-libdaxctl disabled it and vice versa). Fixing this so
configuration works properly.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210707063124.81954-1-mrezanin@redhat.com>
Fixes: 83ef16821a ("configure, meson: convert libdaxctl detection to meson", 2021-07-06)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:19:00 +02:00
Rebecca Cran 05449abb1d hw/intc: Improve formatting of MEMTX_ERROR guest error message
Add a space in the message printed when gicr_read*/gicr_write* returns
MEMTX_ERROR in arm_gicv3_redist.c.

Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210706211432.31902-1-rebecca@nuviainc.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 16:09:12 +01:00
hnick@vmware.com 49a6f3bffb target/arm: Correct the encoding of MDCCSR_EL0 and DBGDSCRint
Signed-off-by: Nick Hudson <hnick@vmware.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 16:09:12 +01:00
Peter Maydell 5092e014f4 hw/arm/stellaris: Expand comment about handling of OLED chipselect
The stellaris board doesn't emulate the handling of the OLED
chipselect line correctly.  Expand the comment describing this,
including a sketch of the theoretical correct way to do it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 16:09:12 +01:00
Peter Maydell 0642e159d2 hw/gpio/pl061: Document a shortcoming in our implementation
The Luminary PL061s in the Stellaris LM3S9695 don't all have the same
reset value for GPIOPUR.  We can get away with not letting the board
configure the PUR reset value because we don't actually wire anything
up to the lines which should reset to pull-up.  Add a comment noting
this omission.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-07-09 16:09:12 +01:00
Peter Maydell ef4989b0a8 hw/gpio/pl061: Convert to 3-phase reset and assert GPIO lines correctly on reset
The PL061 comes out of reset with all its lines configured as input,
which means they might need to be pulled to 0 or 1 depending on the
'pullups' and 'pulldowns' properties.  Currently we do not assert
these lines on reset; they will only be set whenever the guest first
touches a register that triggers a call to pl061_update().

Convert the device to three-phase reset so we have a place where we
can safely call qemu_set_irq() to set the floating lines to their
correct values.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00
Peter Maydell d6773a1f99 hw/arm/virt: Make PL061 GPIO lines pulled low, not high
For the virt board we have two PL061 devices -- one for NonSecure which
is inputs only, and one for Secure which is outputs only. For the former,
we don't care whether its outputs are pulled low or high when the line is
configured as an input, because we don't connect them. For the latter,
we do care, because we wire the lines up to the gpio-pwr device, which
assumes that level 1 means "do the action" and 1 means "do nothing".
For consistency in case we add more outputs in future, configure both
PL061s to pull GPIO lines down to 0.

Reported-by: Maxim Uvarov <maxim.uvarov@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00
Peter Maydell c1e69e92ae hw/gpio/pl061: Make pullup/pulldown of outputs configurable
The PL061 GPIO does not itself include pullup or pulldown resistors
to set the value of a GPIO line treated as an output when it is
configured as an input (ie when the PL061 itself is not driving it).
In real hardware it is up to the board to add suitable pullups or
pulldowns.  Currently our implementation hardwires this to "outputs
pulled high", which is correct for some boards (eg the realview ones:
see figure 3-29 in the "RealView Platform Baseboard for ARM926EJ-S
User Guide" DUI0224I), but wrong for others.

In particular, the wiring in the 'virt' board and the gpio-pwr device
assumes that wires should be pulled low, because otherwise the
pull-to-high will trigger a shutdown or reset action.  (The only
reason this doesn't happen immediately on startup is due to another
bug in the PL061, where we don't assert the GPIOs to the correct
value on reset, but will do so as soon as the guest touches a
register and pl061_update() gets called.)

Add properties to the pl061 so the board can configure whether it
wants GPIO lines to have pullup, pulldown, or neither.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00
Peter Maydell ad06d56fc7 hw/gpio/pl061: Honour Luminary PL061 PUR and PDR registers
The Luminary variant of the PL061 has registers GPIOPUR and GPIOPDR
which lets the guest configure whether the GPIO lines are pull-up,
pull-down, or truly floating. Instead of assuming all lines are pulled
high, honour the PUR and PDR registers.

For the plain PL061, continue to assume that lines have an external
pull-up resistor, as we did before.

The stellaris board actually relies on this behaviour -- the CD line
of the ssd0323 display device is connected to GPIO output C7, and it
is only because of a different bug which we're about to fix that we
weren't incorrectly driving this line high on reset and putting the
ssd0323 into data mode.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00
Peter Maydell 455736df2c hw/gpio/pl061: Document the interface of this device
Add a comment documenting the "QEMU interface" of this device:
which MMIO regions, IRQ lines, GPIO lines, etc it exposes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00
Peter Maydell 74d359b52d hw/gpio/pl061: Add tracepoints for register read and write
Add tracepoints for reads and writes to the PL061 registers. This requires
restructuring pl061_read() to only return after the tracepoint, rather
than having lots of early-returns.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00
Peter Maydell e24a9f6a59 hw/gpio/pl061: Clean up read/write offset handling logic
Currently the pl061_read() and pl061_write() functions handle offsets
using a combination of three if() statements and a switch().  Clean
this up to use just a switch, using case ranges.

This requires that instead of catching accesses to the luminary-only
registers on a stock PL061 via a check on s->rsvd_start we use
an "is this luminary?" check in the cases for each luminary-only
register.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00
Peter Maydell 102d7d1fba hw/gpio/pl061: Convert DPRINTF to tracepoints
Convert the use of the DPRINTF debug macro in the PL061 model to
use tracepoints.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00
Ricardo Koller f4ec71d07c hw/intc/arm_gicv3_cpuif: Fix virtual irq number check in icv_[dir|eoir]_write
icv_eoir_write() and icv_dir_write() ignore invalid virtual IRQ numbers
(like LPIs).  The issue is that these functions check against the number
of implemented IRQs (QEMU's default is num_irq=288) which can be lower
than the maximum virtual IRQ number (1020 - 1).  The consequence is that
if a hypervisor creates an LR for an IRQ between 288 and 1020, then the
guest is unable to deactivate the resulting IRQ. Note that other
functions that deal with large IRQ numbers, like icv_iar_read, check
against 1020 and not against num_irq.

Fix the checks by using GICV3_MAXIRQ (1020) instead of the number of
implemented IRQs.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Message-id: 20210702233701.3369-1-ricarkol@google.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 16:09:12 +01:00
Alexandre Iooss 7cb4097f2d tests/boot-serial-test: Add STM32VLDISCOVERY board testcase
New mini-kernel test for STM32VLDISCOVERY USART1.

Signed-off-by: Alexandre Iooss <erdnaxe@crans.org>
Acked-by: Thomas Huth <thuth@redhat.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210617165647.2575955-5-erdnaxe@crans.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 16:09:12 +01:00
Alexandre Iooss 1af060e574 docs/system: arm: Add stm32 boards description
This adds the target guide for Netduino 2, Netduino Plus 2 and STM32VLDISCOVERY.

Signed-off-by: Alexandre Iooss <erdnaxe@crans.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210617165647.2575955-4-erdnaxe@crans.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 16:09:12 +01:00
Alexandre Iooss 2ac2410c5e stm32vldiscovery: Add the STM32VLDISCOVERY Machine
This is a Cortex-M3 based machine. Information can be found at:
https://www.st.com/en/evaluation-tools/stm32vldiscovery.html

Signed-off-by: Alexandre Iooss <erdnaxe@crans.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210617165647.2575955-3-erdnaxe@crans.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 16:09:12 +01:00
Alexandre Iooss 0f76debd1f stm32f100: Add the stm32f100 SoC
This SoC is similar to stm32f205 SoC.
This will be used by the STM32VLDISCOVERY to create a machine.

Signed-off-by: Alexandre Iooss <erdnaxe@crans.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210617165647.2575955-2-erdnaxe@crans.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 16:09:11 +01:00
Peter Maydell 05de778b5b pc,pci,virtio: bugfixes, improvements
vhost-user-rng support.
 Fixes all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc,pci,virtio: bugfixes, improvements

vhost-user-rng support.
Fixes all over the place.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Wed 07 Jul 2021 14:29:30 BST
# 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:
  MAINTAINERS: Add maintainer for vhost-user RNG implementation
  docs: add slot when adding new PCIe root port
  acpi/ged: fix reset cause
  tests: acpi: pc: update expected DSDT blobs
  acpi: pc: revert back to v5.2 PCI slot enumeration
  tests: acpi: prepare for changing DSDT tables
  migration: failover: reset partially_hotplugged
  virtio-pci: Changed return values for "notify", "device" and "isr" read.
  virtio-pci: Added check for virtio device in PCI config cbs.
  virtio-pci: Added check for virtio device presence in mm callbacks.
  hw/pci-host/q35: Ignore write of reserved PCIEXBAR LENGTH field
  virtio: Clarify MR transaction optimization
  virtio: disable ioeventfd for record/replay

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 14:30:01 +01:00
Alberto Garcia e60edf69e2 block: Make blockdev-reopen stable API
This patch drops the 'x-' prefix from x-blockdev-reopen.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210708114709.206487-7-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 13:19:11 +02:00
Alberto Garcia 246ebc2d6a iotests: Test reopening multiple devices at the same time
This test swaps the images used by two active block devices.

This is now possible thanks to the new ability to run
x-blockdev-reopen on multiple devices at the same time.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210708114709.206487-6-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 13:19:11 +02:00
Alberto Garcia 3908b7a899 block: Support multiple reopening with x-blockdev-reopen
[ kwolf: Fixed AioContext locking ]

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210708114709.206487-5-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 13:19:11 +02:00
Kevin Wolf 6cf42ca2f9 block: Acquire AioContexts during bdrv_reopen_multiple()
As the BlockReopenQueue can contain nodes in multiple AioContexts, only
one of which may be locked when AIO_WAIT_WHILE() can be called, we can't
let the caller lock the right contexts. Instead, individually lock the
AioContext of a single node when iterating the queue.

Reintroduce bdrv_reopen() as a wrapper for reopening a single node that
drains the node and temporarily drops the AioContext lock for
bdrv_reopen_multiple().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210708114709.206487-4-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 13:19:11 +02:00
Alberto Garcia ab5b522879 block: Add bdrv_reopen_queue_free()
Move the code to free a BlockReopenQueue to a separate function.
It will be used in a subsequent patch.

[ kwolf: Also free explicit_options and options, and explicitly
  qobject_ref() the value when it continues to be used. This makes
  future memory leaks less likely. ]

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210708114709.206487-3-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 13:19:11 +02:00
Kevin Wolf bcfd86d6a6 qcow2: Fix dangling pointer after reopen for 'file'
Without an external data file, s->data_file is a second pointer with the
same value as bs->file. When changing bs->file to a different BdrvChild
and freeing the old BdrvChild, s->data_file must also be updated,
otherwise it points to freed memory and causes crashes.

This problem was caught by iotests case 245.

Fixes: df2b7086f169239ebad5d150efa29c9bb6d4f820
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210708114709.206487-2-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 13:19:11 +02:00
Eric Blake a7cd44bef3 qemu-img: Improve error for rebase without backing format
When removeing support for qemu-img being able to create backing
chains without embedded backing formats, we caused a poor error
message as caught by iotest 114.  Improve the situation to inform the
user what went wrong.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210708155228.2666172-1-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 13:19:09 +02:00
Eric Blake 497a30dbb0 qemu-img: Require -F with -b backing image
Back in commit d9f059aa6c (qemu-img: Deprecate use of -b without -F),
we deprecated the ability to create a file with a backing image that
requires qemu to perform format probing.  Qemu can still probe older
files for backwards compatibility, but it is time to finish off the
ability to create such images, due to the potential security risk they
present.  Update a couple of iotests affected by the change.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210503213600.569128-3-eblake@redhat.com>
Reviewed-by: Connor Kuehl <ckuehl@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 13:18:32 +02:00
Eric Blake 5a385bf5c5 qcow2: Prohibit backing file changes in 'qemu-img amend'
This was deprecated back in bc5ee6da7 (qcow2: Deprecate use of
qemu-img amend to change backing file), and no one in the meantime has
given any reasons why it should be supported.  Time to make change
attempts a hard error (but for convenience, specifying the _same_
backing chain is not forbidden).  Update a couple of iotests to match.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210503213600.569128-2-eblake@redhat.com>
Reviewed-by: Connor Kuehl <ckuehl@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 12:26:05 +02:00
Vladimir Sementsov-Ogievskiy 2842ff2d81 blockdev: fix drive-backup transaction endless drained section
drive_backup_prepare() does bdrv_drained_begin() in hope that
bdrv_drained_end() will be called in drive_backup_clean(). Still we
need to set state->bs for this to work. That's done too late: a lot of
failure paths in drive_backup_prepare() miss setting state->bs. Fix
that.

Fixes: 2288ccfac9
Fixes: https://gitlab.com/qemu-project/qemu/-/issues/399
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210608171852.250775-1-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 12:26:05 +02:00
Kevin Wolf 84affad1fd vhost-user: Fix backends without multiqueue support
dev->max_queues was never initialised for backends that don't support
VHOST_USER_PROTOCOL_F_MQ, so it would use 0 as the maximum number of
queues to check against and consequently fail for any such backend.

Set it to 1 if the backend doesn't have multiqueue support.

Fixes: c90bd505a3
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210705171429.29286-1-kwolf@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-09 12:26:05 +02:00