This patch adds an additional "retired" queue in which FIFO command
entry objects are placed after execution. This queue of objects is then
returned to the pusher's new "available" queue for re-use.
This improves the performance of the system by avoiding the costly
overhead associated with the general-purpose use of `malloc` and `free`
for previous allocation of FIFO command queue objects.
This patch does the following:
- Fixes up things for Qemu 2.x compat
- Factors out the high-level NV2A blocks into separate files
- Updates g-lru-cache for latest glib compat (github.com/chergert/glrucache@c10af24)
- Changes texture hashing algorithm from FNV to xxH v0.6.5
32cba22 i8259: in edge triggered mode apparently a training edge should cancel the interrupt
ad6aef5 nforce chipset seems to allow setting irq0-3 to level triggered
When IOMMU is enabled, we store virtqueue metadata as iova (though it
may has _phys suffix) and access them through dma helpers. Any
translation failures could be reported by IOMMU.
In this case, trying to validate iova against gpa won't work and will
cause a false error reporting. So this patch bypasses the ring
verification if IOMMU is enabled which is similar to the behavior
before 0ca1fd2d68 that calls vhost_memory_map() which is a nop when
IOMMU is enabled.
Fixes: 0ca1fd2d68 ("vhost: Simplify ring verification checks")
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The CMSDK APB UART INTSTATUS register bits are all write-one-to-clear.
We were getting this correct for the TXO and RXO bits (which need
special casing because their state lives in the STATE register),
but had forgotten to handle the normal bits for RX and TX which
we do store in our s->intstatus field.
Perform the W1C operation on the bits in s->intstatus too.
Fixes: https://bugs.launchpad.net/qemu/+bug/1760262
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180410134203.17552-1-peter.maydell@linaro.org
In icount mode, instructions that access io memory spaces in the middle
of the translation block invoke TB recompilation. After recompilation,
such instructions become last in the TB and are allowed to access io
memory spaces.
When the code includes instruction like i386 'xchg eax, 0xffffd080'
which accesses APIC, QEMU goes into an infinite loop of the recompilation.
This instruction includes two memory accesses - one read and one write.
After the first access, APIC calls cpu_report_tpr_access, which restores
the CPU state to get the current eip. But cpu_restore_state_from_tb
resets the cpu->can_do_io flag which makes the second memory access invalid.
Therefore the second memory access causes a recompilation of the block.
Then these operations repeat again and again.
This patch moves resetting cpu->can_do_io flag from
cpu_restore_state_from_tb to cpu_loop_exit* functions.
It also adds a parameter for cpu_restore_state which controls restoring
icount. There is no need to restore icount when we only query CPU state
without breaking the TB. Restoring it in such cases leads to the
incorrect flow of the virtual time.
In most cases new parameter is true (icount should be recalculated).
But there are two cases in i386 and openrisc when the CPU state is only
queried without the need to break the TB. This patch fixes both of
these cases.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <20180409091320.12504.35329.stgit@pasha-VirtualBox>
[rth: Make can_do_io setting unconditional; move from cpu_exec;
make cpu_loop_exit_{noexc,restore} call cpu_loop_exit.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Here's a rather late pull request with a handful of fixes for 2.12.
These have been blocked for some time, because I wasn't able to
complete my usual test set due to the SCSI problem fixed in 37c5174
"scsi-disk: Don't enlarge min_io_size to max_io_size".
Since we're in hard freeze, these are all bugfixes. Most are also
regressions, although in one case it's only a "regression" because a
longstanding bug has been exposed by a new machine type (sam460ex) in
the testcases. There are also a couple of sam460ex fixes that aren't
regressions since the board didn't exist before. On the flipside
though, they're low risk because they only touch board specific code
for a board that doesn't exist in any released version.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.12-20180410' into staging
ppc patch queue 2018-04-10
Here's a rather late pull request with a handful of fixes for 2.12.
These have been blocked for some time, because I wasn't able to
complete my usual test set due to the SCSI problem fixed in 37c5174
"scsi-disk: Don't enlarge min_io_size to max_io_size".
Since we're in hard freeze, these are all bugfixes. Most are also
regressions, although in one case it's only a "regression" because a
longstanding bug has been exposed by a new machine type (sam460ex) in
the testcases. There are also a couple of sam460ex fixes that aren't
regressions since the board didn't exist before. On the flipside
though, they're low risk because they only touch board specific code
for a board that doesn't exist in any released version.
# gpg: Signature made Tue 10 Apr 2018 08:13:52 BST
# gpg: using RSA key 6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.12-20180410:
roms/u-boot-sam460ex: Change to qemu git mirror and update
sam460ex: Fix timer frequency and clock multipliers
tests/boot-serial: Test the sam460ex board
spapr: Initialize reserved areas list in FDT in H_CAS handler
target/ppc: Fix backwards migration of msr_mask
hw/misc/macio: Fix crash when listing device properties of macio device
target/ppc: Initialize lazy_tlb_flush correctly
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
ASAN reported:
hw/block/pflash_cfi02.c:245:33: runtime error: index 82 out of bounds for type 'uint8_t [82]'
Since the 'cfi_len' member is not used, remove it to keep the code safer.
Cc: qemu-stable@nongnu.org
Reported-by: AddressSanitizer
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* fpu: Fix rounding mode for floatN_to_uintM_round_to_zero
* tcg: Fix guest state corruption when running 64-bit Arm
guests on a 32-bit host (especially when using icount)
* linux-user/signal.c: Ensure AArch64 signal frame isn't too small
* cpus.c: ensure running CPU recalculates icount deadlines on timer expiry
* target/arm: Report unsupported MPU region sizes more clearly
* hw/arm/fsl-imx: Fix introspection problem with fsl-imx6 and fsl-imx7
* hw/arm/allwinner-a10: Do not use nd_table in instance_init function
* hw/sd/bcm2835_sdhost: Don't raise spurious interrupts
* hw/sd/bcm2835_sdhost: Add tracepoints
* target-arm: Check undefined opcodes for SWP in A32 decoder
* hw/arm/integratorcp: Don't do things that could be fatal in the instance_init
* hw/arm: Allow manually specified /psci node
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20180410' into staging
target-arm queue:
* fpu: Fix rounding mode for floatN_to_uintM_round_to_zero
* tcg: Fix guest state corruption when running 64-bit Arm
guests on a 32-bit host (especially when using icount)
* linux-user/signal.c: Ensure AArch64 signal frame isn't too small
* cpus.c: ensure running CPU recalculates icount deadlines on timer expiry
* target/arm: Report unsupported MPU region sizes more clearly
* hw/arm/fsl-imx: Fix introspection problem with fsl-imx6 and fsl-imx7
* hw/arm/allwinner-a10: Do not use nd_table in instance_init function
* hw/sd/bcm2835_sdhost: Don't raise spurious interrupts
* hw/sd/bcm2835_sdhost: Add tracepoints
* target-arm: Check undefined opcodes for SWP in A32 decoder
* hw/arm/integratorcp: Don't do things that could be fatal in the instance_init
* hw/arm: Allow manually specified /psci node
# gpg: Signature made Tue 10 Apr 2018 13:16:12 BST
# gpg: using RSA key 3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20180410:
fpu: Fix rounding mode for floatN_to_uintM_round_to_zero
tcg: Introduce tcg_set_insn_start_param
linux-user/signal.c: Ensure AArch64 signal frame isn't too small
cpus.c: ensure running CPU recalculates icount deadlines on timer expiry
target/arm: Report unsupported MPU region sizes more clearly
hw/arm/fsl-imx: Fix introspection problem with fsl-imx6 and fsl-imx7
hw/arm/allwinner-a10: Do not use nd_table in instance_init function
hw/sd/bcm2835_sdhost: Don't raise spurious interrupts
hw/sd/bcm2835_sdhost: Add tracepoints
target-arm: Check undefined opcodes for SWP in A32 decoder
hw/arm/integratorcp: Don't do things that could be fatal in the instance_init
hw/arm: Allow manually specified /psci node
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
QEMU currently exits unexpectedly when trying to introspect the fsl-imx6
and fsl-imx7 devices on systems with many SMP CPUs:
$ echo "{'execute':'qmp_capabilities'}"\
"{'execute':'device-list-properties',"\
" 'arguments':{'typename':'fsl,imx6'}}" \
| arm-softmmu/qemu-system-arm -M virt,accel=qtest -qmp stdio -smp 8
{"QMP": {"version": {"qemu": {"micro": 91, "minor": 11, "major": 2},
"package": "build-all"}, "capabilities": []}}
{"return": {}}
fsl,imx6: Only 4 CPUs are supported (8 requested)
And:
$ echo "{'execute':'qmp_capabilities'}"\
"{'execute':'device-list-properties',"\
" 'arguments':{'typename':'fsl,imx7'}}" \
| arm-softmmu/qemu-system-arm -M raspi2,accel=qtest -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 91, "minor": 11, "major": 2},
"package": "build-all"}, "capabilities": []}}
{"return": {}}
fsl,imx7: Only 2 CPUs are supported (4 requested)
This happens because these devices are doing an exit() from their
instance_init function - which should never be done since instance_init
can be called at any time for device introspection! Fix it by moving
the deadly check into the realize() function instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1522908551-14885-1-git-send-email-thuth@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The instance_init function of a device can be called at any time, even
if the device is not going to be used (i.e. not going to be realized).
So a instance_init function must not do things that could cause QEMU
to exit, like calling qemu_check_nic_model(&nd_table[0], ...) for example.
But this is what the instance_init function of the allwinner-a10 device
is currently doing - and this causes QEMU to quit unexpectedly when
you run the 'device-list-properties' QMP command for example:
$ echo "{'execute':'qmp_capabilities'}"\
"{'execute':'device-list-properties',"\
" 'arguments':{'typename':'allwinner-a10'}}" \
| arm-softmmu/qemu-system-arm -M mps2-an505,accel=qtest -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 91, "minor": 11, "major": 2},
"package": "build-all"}, "capabilities": []}}
{"return": {}}
Unsupported NIC model: lan9118
... and QEMU quits after printing the last line (which should not happen
just because of running 'device-list-properties' here).
And with the cubieboard, this even causes QEMU to abort():
$ echo "{'execute':'qmp_capabilities'}"\
"{'execute':'device-list-properties',"\
" 'arguments':{'typename':'allwinner-a10'}}" \
| arm-softmmu/qemu-system-arm -M cubieboard,accel=qtest -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 91, "minor": 11, "major": 2},
"package": "build-all"}, "capabilities": []}}
{"return": {}}
Unexpected error in error_set_from_qdev_prop_error() at hw/core/qdev-properties.c:1095:
Property 'allwinner-emac.netdev' can't take value 'hub0port0', it's in use
Aborted (core dumped)
To fix the problem we've got to move the offending code to the realize
function instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1522862420-7484-1-git-send-email-thuth@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The Linux bcm2835_sdhost driver doesn't work on QEMU, because our
model raises spurious data interrupts. Our function
bcm2835_sdhost_fifo_run() will flag an interrupt any time it is
called with s->datacnt == 0, even if the host hasn't actually issued
a data read or write command yet. This means that the driver gets a
spurious data interrupt as soon as it enables IRQs and then does
something else that causes us to call the fifo_run routine, like
writing to SDHCFG, and before it does the write to SDCMD to issue the
read. The driver's IRQ handler then spins forever complaining that
there's no data and the SD controller isn't in a state where there's
going to be any data:
[ 41.040738] sdhost-bcm2835 3f202000.mmc: fsm 1, hsts 00000000
[ 41.042059] sdhost-bcm2835 3f202000.mmc: fsm 1, hsts 00000000
(continues forever).
Move the interrupt flag setting to more plausible places:
* for BUSY, raise this as soon as a BUSYWAIT command has executed
* for DATA, raise this when the FIFO has any space free (for a write)
or any data in it (for a read)
* for BLOCK, raise this when the data count is 0 and we've
actually done some reading or writing
This is pure guesswork since the documentation for this hardware is
not public, but it is sufficient to get the Linux bcm2835_sdhost
driver to work.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180319161556.16446-3-peter.maydell@linaro.org
Add some tracepoints to the bcm2835_sdhost driver, to assist
debugging.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180319161556.16446-2-peter.maydell@linaro.org
Change the code to avoid exiting QEMU if user provided DTB contains
manually specified /psci node and skip any /psci related fixups
instead.
Fixes: 4cbca7d9b4 ("hw/arm: Move virt's PSCI DT fixup code to
arm/boot.c")
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reported-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Message-id: 20180402205654.14572-1-andrew.smirnov@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Version: GnuPG v1
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Tue 10 Apr 2018 04:36:01 BST
# gpg: using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request:
e1000: Old machine types, turn new subsection off
e1000: Choose which set of props to migrate
e1000: Migrate props via a temporary structure
e1000: wire new subsection to property
e1000: Dupe offload data on reading old stream
e1000: Convert v3 fields to subsection
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When we're using the subsection we migrate both
the 'props' and 'tso_props' data; when we're not using
the subsection (to migrate to 2.11 or old machine types) we've
got to choose what to migrate in the main structure.
If we're using the subsection migrate 'props' in the main structure.
If we're not using the subsection then migrate the last one
that changed, which gives behaviour similar to the old behaviour.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Swing the tx.props out via a temporary structure, so in future patches
we can select what we're going to send.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Wire the new subsection from the previous commit to a property
so we can turn it off easily.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Old QEMUs only had one set of offload data; when we only receive
one lot, dupe the received data - that should give us about the
same bug level as the old version.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
A bunch of new TSO fields were introduced by d62644b4 and this bumped
the VMState version; however it's easier for those trying to keep
backwards migration compatibility if these fields are added in a
subsection instead.
Move the new fields to a subsection.
Since this was added after 2.11, this change will only affect
compatbility with 2.12-rc0.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
We only emulate timer running at CPU frequency which is what most
guests expect so set the frequency to match real hardware. This also
allows setting clock multipliers which caused slowdown previously due
to wrong timer frequency.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
At the moment the device tree produced by the H_CAS handler has no
reserved map initialized at all which is not correct as at least one
empty record is required to be present as a marker of the end.
This does not cause problems now as the only consumer is SLOF which
does not look at the reserved map area.
However when DTC's "Improve libfdt's memory safety" changeset hits
the QEMU upstream, there will be errors reported and crashes observed.
This fixes the problem by adding an empty entry to the reserved map,
just like create_device_tree() does already.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The macio-newworld device can currently be used to abort QEMU unexpectedly:
$ ppc-softmmu/qemu-system-ppc -S -M ref405ep,accel=qtest -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 50, "minor": 11, "major": 2},
"package": "build-all"}, "capabilities": []}}
{ 'execute': 'qmp_capabilities' }
{"return": {}}
{ 'execute': 'device-list-properties',
'arguments': {'typename': 'macio-newworld'}}
Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:222:
Device 'serial0' is in use
Aborted (core dumped)
qdev properties should be set during realize(), not during instance_init(),
so move the related code there to fix this problem.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Jannik Vogel