MigrateSetParameters is about setting parameters, and
MigrationParameters is about querying them. Their documentation of
@tls-creds and @tls-hostname has residual damage from a failed attempt
at de-duplicating them (see commit de63ab6124 "migrate: Share common
MigrationParameters struct" and commit 1bda8b3c69 "migration: Unshare
MigrationParameters struct for now").
MigrateSetParameters documentation issues:
* It claims plain text mode "was reported by omitting tls-creds"
before 2.9. MigrateSetParameters is not used for reporting, so this
is misleading. Delete.
* It similarly claims hostname defaulting to migration URI "was
reported by omitting tls-hostname" before 2.9. Delete as well.
Rephrase the remaining @tls-hostname contents for clarity.
Enum MigrationParameter mirrors the members of struct
MigrateSetParameters. Differences to MigrateSetParameters's member
documentation are pointless. Copy the new text to MigrationParameter.
MigrationParameters documentation issues:
* @tls-creds runs the two last sentences together without punctuation.
Fix that.
* Much of the contents on @tls-hostname only applies to setting
parameters, resulting in confusion. Replace by a suitable abridged
version of the new MigrateSetParameters text, and a note on
@tls-hostname omission in 2.8.
Additional damage is due to flawed doc fix commit
66fcb9d651 (qapi/migration: Add missing tls-authz documentation):
since it copied the missing MigrateSetParameters text from
MigrationParameters instead of MigrationParameter, the part on
recreating @tls-authz on the fly is missing. Copy that, too.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322135117.195489-2-armbru@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
[Some typos corrected]
* Mark devices with user_creatable = false that can crash QEMU otherwise
* Fix s390x TEST-AND-SET TCG instruction emulation
* Move pc955* devices to hw/gpio/
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Merge tag 'pull-request-2024-03-25' of https://gitlab.com/thuth/qemu into staging
* Fix timeouts in Travis-CI jobs
* Mark devices with user_creatable = false that can crash QEMU otherwise
* Fix s390x TEST-AND-SET TCG instruction emulation
* Move pc955* devices to hw/gpio/
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# gpg: Signature made Mon 25 Mar 2024 14:10:32 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
* tag 'pull-request-2024-03-25' of https://gitlab.com/thuth/qemu:
tests/tcg/s390x: Test TEST AND SET
target/s390x: Use mutable temporary value for op_ts
libqos/virtio.c: Correct 'flags' reading in qvirtqueue_kick
misc/pca955*: Move models under hw/gpio
aspeed: Make the ast1030-a1 SoC not user creatable
aspeed: Make the ast2600-a3 SoC not user creatable
hw/microblaze: Do not allow xlnx-zynqmp-pmu-soc to be created by the user
.travis.yml: Remove the unused xfslib-dev package
.travis.yml: Shorten the runtime of the problematic jobs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- Fabiano's patch to revert fd: support on mapped-ram
- Peter's fix on postcopy regression on unnecessary dirty syncs
- Fabiano's fix on mapped-ram rare corrupt on zero page handling
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Merge tag 'migration-20240322-pull-request' of https://gitlab.com/peterx/qemu into staging
Migration pull for 9.0-rc1
- Fabiano's patch to revert fd: support on mapped-ram
- Peter's fix on postcopy regression on unnecessary dirty syncs
- Fabiano's fix on mapped-ram rare corrupt on zero page handling
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# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 22 Mar 2024 16:13:23 GMT
# gpg: using EDDSA key B9184DC20CC457DACF7DD1A93B5FCCCDF3ABD706
# gpg: issuer "peterx@redhat.com"
# gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [marginal]
# gpg: aka "Peter Xu <peterx@redhat.com>" [marginal]
# 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: B918 4DC2 0CC4 57DA CF7D D1A9 3B5F CCCD F3AB D706
* tag 'migration-20240322-pull-request' of https://gitlab.com/peterx/qemu:
migration/multifd: Fix clearing of mapped-ram zero pages
migration/postcopy: Fix high frequency sync
migration: Revert mapped-ram multifd support to fd: URI
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Coverity points out that g_setenv() can fail and we don't
check for this in qtest_inproc_init(). In practice this will
only fail if a memory allocation failed in setenv() or if
the caller passed an invalid architecture name (e.g. one
with an '=' in it), so rather than requiring the callsite
to check for failure, make g_setenv() failure fatal here,
similarly to what we did in commit aca68d95c5.
Resolves: Coverity CID 1497485
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240312183810.557768-8-peter.maydell@linaro.org
In test_compute_wait() we do
double units = bkt.max / 10;
which does an integer division and then assigns it to a double variable,
and similarly later on in the expression for an assertion.
Use 10.0 so that we do a floating point division and calculate the
exact value, rather than doing an integer division.
Spotted by Coverity.
Resolves: Coverity CID 1432564
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240312183810.557768-7-peter.maydell@linaro.org
Add a small test to prevent regressions.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240318202722.20675-2-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Otherwise TCG would assume the register that holds t1 would be constant
and reuse whenever it needs the value within it.
Cc: qemu-stable@nongnu.org
Fixes: f1ea739bd5 ("target/s390x: Use tcg_constant_* in local contexts")
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[iii: Adjust a newline and capitalization, add tags]
Signed-off-by: Ido Plat <ido.plat@ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-ID: <20240318202722.20675-1-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
In qvirtqueue_kick(), the 'flags' were previously being incorrectly read from
vq->avail instead of the correct vq->used location. This update ensures 'flags'
are read from the correct location as per the virtio standard.
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20240320090442.267525-1-zheyuma97@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The PCA9552 and PCA9554 devices are both I2C GPIO controllers and the
PCA9552 also can drive LEDs. Do all the necessary adjustments to move
the models under hw/gpio.
Cc: Glenn Miles <milesg@linux.vnet.ibm.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Message-ID: <20240325134833.1484265-1-clg@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
There's no way for the macio_nvram device to report failure to write
data, but we can at least report it to the user with error_report()
as we do in other devices like xlnx-efuse.
Spotted by Coverity.
Resolves: Coverity CID 1507628
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240312183810.557768-6-peter.maydell@linaro.org
In pca9554_get_pin() and pca9554_set_pin(), we try to detect an
incorrect pin value, but we get the condition wrong, using ">"
when ">=" was intended.
This has no actual effect, because in pca9554_initfn() we
use the correct test when creating the properties and so
we'll never be called with an out of range value. However,
Coverity complains about the mismatch between the check and
the later use of the pin value in a shift operation.
Use the correct condition.
Resolves: Coverity CID 1534917
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20240312183810.557768-5-peter.maydell@linaro.org
In net_init_af_xdp() we parse the arguments and allocate
a buffer of ints into sock_fds. However, although we
free this in the error exit path, we don't ever free it
in the successful return path. Coverity spots this leak.
Switch to g_autofree so we don't need to manually free the
array.
Resolves: Coverity CID 1534906
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20240312183810.557768-4-peter.maydell@linaro.org
In socket_check_afunix_support() we call socket(PF_UNIX, SOCK_STREAM, 0)
to see if it works, but we call close() on the result whether it
worked or not. Only close the fd if the socket() call succeeded.
Spotted by Coverity.
Resolves: Coverity CID 1497481
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20240312183810.557768-3-peter.maydell@linaro.org
In test_rx() and test_tx() we allocate a GString *cmd_line
but never free it. This is pretty harmless in a test case, but
Coverity spotted it.
Resolves: Coverity CID 1507122
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20240312183810.557768-2-peter.maydell@linaro.org
Aspeed SoCs are complex devices that can not be specified on the
command line. Fix that to avoid QEMU aborts.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2227
Fixes: 356b230ed1 ("aspeed/soc : Add AST1030 support")
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240319150903.413662-2-clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Aspeed SoCs are complex devices that can not be specified on the
command line. Fix that to avoid QEMU aborts.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2227
Fixes: f25c0ae107 ("aspeed/soc: Add AST2600 support")
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240319150903.413662-1-clg@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Using xlnx-zynqmp-pmu-soc on the command line causes QEMU to crash:
./qemu-system-microblazeel -M petalogix-ml605 -device xlnx-zynqmp-pmu-soc
**
ERROR:tcg/tcg.c:813:tcg_register_thread: assertion failed: (n < tcg_max_ctxs)
Bail out!
Aborted (core dumped)
Mark the device with "user_creatable = false" to avoid that this can happen.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2229
Message-ID: <20240322183153.1023359-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Drop the "xfslibs-dev" package which should not be necessary anymore
since commit a5730b8bd3 ("block/file-posix: Simplify the XFS_IOC_DIOINFO
handling").
Message-ID: <20240320104144.823425-3-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
The "[s390x] GCC (other-system)" and the "[s390x] GCC check-tcg"
jobs are hitting the 50 minutes timeout in Travis quite frequently
since a while.
To fix it, we've got to drop a lot of the targets from the target
list in the jobs to make them work again.
With regards to the "check-tcg" test, we can move the check with
"s390x-linux-user" to the "user" job instead which also builds
the s390x-linux-user target.
And while we're at it, remove the "--enable-fdt=system" configure
switch (since this is not required nowadays anymore).
Message-ID: <20240320104144.823425-2-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
When the zero page detection is done in the multifd threads, we need
to iterate the second part of the pages->offset array and clear the
file bitmap for each zero page. The piece of code we merged to do that
is wrong.
The reason this has passed all the tests is because the bitmap is
initialized with zeroes already, so clearing the bits only really has
an effect during live migration and when a data page goes from having
data to no data.
Fixes: 303e6f54f9 ("migration/multifd: Implement zero page transmission on the multifd thread.")
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240321201242.6009-1-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
With current code base I can observe extremely high sync count during
precopy, as long as one enables postcopy-ram=on before switchover to
postcopy.
To provide some context of when QEMU decides to do a full sync: it checks
must_precopy (which implies "data must be sent during precopy phase"), and
as long as it is lower than the threshold size we calculated (out of
bandwidth and expected downtime) QEMU will kick off the slow/exact sync.
However, when postcopy is enabled (even if still during precopy phase), RAM
only reports all pages as can_postcopy, and report must_precopy==0. Then
"must_precopy <= threshold_size" mostly always triggers and enforces a slow
sync for every call to migration_iteration_run() when postcopy is enabled
even if not used. That is insane.
It turns out it was a regress bug introduced in the previous refactoring in
8.0 as reported by Nina [1]:
(a) c8df4a7aef ("migration: Split save_live_pending() into state_pending_*")
Then a workaround patch is applied at the end of release (8.0-rc4) to fix it:
(b) 28ef5339c3 ("migration: fix ram_state_pending_exact()")
However that "workaround" was overlooked when during the cleanup in this
9.0 release in this commit..
(c) b0504edd40 ("migration: Drop unnecessary check in ram's pending_exact()")
Then the issue was re-exposed as reported by Nina [1].
The problem with (b) is that it only fixed the case for RAM, rather than
all the rest of iterators. Here a slow sync should only be required if all
dirty data (precopy+postcopy) is less than the threshold_size that QEMU
calculated. It is even debatable whether a sync is needed when switched to
postcopy. Currently ram_state_pending_exact() will be mostly noop if
switched to postcopy, and that logic seems to apply too for all the rest of
iterators, as sync dirty bitmap during a postcopy doesn't make much sense.
However let's leave such change for later, as we're in rc phase.
So rather than reusing commit (b), this patch provides the complete fix for
all iterators. When at it, cleanup a little bit on the lines around.
[1] https://gitlab.com/qemu-project/qemu/-/issues/1565
Reported-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Fixes: b0504edd40 ("migration: Drop unnecessary check in ram's pending_exact()")
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240320214453.584374-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
This reverts commit decdc76772 in full
and also the relevant migration-tests from
7a09f09283.
After the addition of the new QAPI-based migration address API in 8.2
we've been converting an "fd:" URI into a SocketAddress, missing the
fact that the "fd:" syntax could also be used for a plain file instead
of a socket. This is a problem because the SocketAddress is part of
the API, so we're effectively asking users to create a "socket"
channel to pass in a plain file.
The easiest way to fix this situation is to deprecate the usage of
both SocketAddress and "fd:" when used with a plain file for
migration. Since this has been possible since 8.2, we can wait until
9.1 to deprecate it.
For 9.0, however, we should avoid adding further support to migration
to a plain file using the old "fd:" syntax or the new SocketAddress
API, and instead require the usage of either the old-style "file:" URI
or the FileMigrationArgs::filename field of the new API with the
"/dev/fdset/NN" syntax, both of which are already supported.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240319210941.1907-1-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
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Merge tag 'pull-loongarch-20240322' of https://gitlab.com/gaosong/qemu into staging
pull-loongarch-20240322
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# gpg: Signature made Fri 22 Mar 2024 09:59:02 GMT
# gpg: using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B8FF 1DA0 D2FD CB2D A09C 6C2C 40A2 FFF2 3926 3EDF
* tag 'pull-loongarch-20240322' of https://gitlab.com/gaosong/qemu:
target/loongarch: Fix qemu-system-loongarch64 assert failed with the option '-d int'
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Do not enable all named features by default
* A range of Vector fixes
* Update APLIC IDC after claiming iforce register
* Remove the dependency of Zvfbfmin to Zfbfmin
* Fix mode in riscv_tlb_fill
* Fix timebase-frequency when using KVM acceleration
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Merge tag 'pull-riscv-to-apply-20240322' of https://github.com/alistair23/qemu into staging
RISC-V PR for 9.0
* Do not enable all named features by default
* A range of Vector fixes
* Update APLIC IDC after claiming iforce register
* Remove the dependency of Zvfbfmin to Zfbfmin
* Fix mode in riscv_tlb_fill
* Fix timebase-frequency when using KVM acceleration
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# gpg: Signature made Fri 22 Mar 2024 08:52:23 GMT
# gpg: using RSA key 6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6AE9 02B6 A7CA 877D 6D65 9296 AF7C 9513 0C53 8013
* tag 'pull-riscv-to-apply-20240322' of https://github.com/alistair23/qemu:
target/riscv/kvm: fix timebase-frequency when using KVM acceleration
target/riscv: Fix mode in riscv_tlb_fill
target/riscv: rvv: Remove the dependency of Zvfbfmin to Zfbfmin
hw/intc: Update APLIC IDC after claiming iforce register
target/riscv/vector_helper.c: optimize loops in ldst helpers
target/riscv: enable 'vstart_eq_zero' in the end of insns
trans_rvv.c.inc: remove redundant mark_vs_dirty() calls
target/riscv: remove 'over' brconds from vector trans
target/riscv/vector_helpers: do early exit when vstart >= vl
target/riscv: always clear vstart for ldst_whole insns
target/riscv: always clear vstart in whole vec move insns
target/riscv/vector_helper.c: fix 'vmvr_v' memcpy endianess
trans_rvv.c.inc: set vstart = 0 in int scalar move insns
target/riscv/vector_helper.c: set vstart = 0 in GEN_VEXT_VSLIDEUP_VX()
target/riscv: do not enable all named features by default
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
I was too quick in sending the coroutine pool sizing change for -rc0 and still
needed to address feedback from Daniel Berrangé.
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Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging
Pull request
I was too quick in sending the coroutine pool sizing change for -rc0 and still
needed to address feedback from Daniel Berrangé.
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# gpg: Signature made Thu 21 Mar 2024 17:22:45 GMT
# gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
coroutine: reserve 5,000 mappings
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
qemu-system-loongarch64 assert failed with the option '-d int',
the helper_idle() raise an exception EXCP_HLT, but the exception name is undefined.
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240321123606.1704900-1-gaosong@loongson.cn>
The timebase-frequency of guest OS should be the same with host
machine. The timebase-frequency value in DTS should be got from
hypervisor when using KVM acceleration.
Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Message-ID: <20240314061510.9800-1-yongxuan.wang@sifive.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Need to convert mmu_idx to privilege mode for PMP function.
Signed-off-by: Irina Ryapolova <irina.ryapolova@syntacore.com>
Fixes: b297129ae1 ("target/riscv: propagate PMP permission to TLB page")
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240320172828.23965-1-irina.ryapolova@syntacore.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
According to the Zvfbfmin definition in the RISC-V BF16 extensions spec,
the Zvfbfmin extension only requires either the V extension or the
Zve32f extension.
Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240321170929.1162507-1-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Currently, QEMU only sets the iforce register to 0 and returns early
when claiming the iforce register. However, this may leave mip.meip
remains at 1 if a spurious external interrupt triggered by iforce
register is the only pending interrupt to be claimed, and the interrupt
cannot be lowered as expected.
This commit fixes this issue by calling riscv_aplic_idc_update() to
update the IDC status after the iforce register is claimed.
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Jim Shu <jim.shu@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240321104951.12104-1-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Change the for loops in ldst helpers to do a single increment in the
counter, and assign it env->vstart, to avoid re-reading from vstart
every time.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240314175704.478276-11-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The vstart_eq_zero flag is updated at the beginning of the translation
phase from the env->vstart variable. During the execution phase all
functions will set env->vstart = 0 after a successful execution, but the
vstart_eq_zero flag remains the same as at the start of the block. This
will wrongly cause SIGILLs in translations that requires env->vstart = 0
and might be reading vstart_eq_zero = false.
This patch adds a new finalize_rvv_inst() helper that is called at the
end of each vector instruction that will both update vstart_eq_zero and
do a mark_vs_dirty().
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1976
Signed-off-by: Ivan Klokov <ivan.klokov@syntacore.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240314175704.478276-10-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
trans_vmv_v_i , trans_vfmv_v_f and the trans_##NAME macro from
GEN_VMV_WHOLE_TRANS() are calling mark_vs_dirty() in both branches of
their 'ifs'. conditionals.
Call it just once in the end like other functions are doing.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240314175704.478276-9-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
All helpers that rely on vstart >= vl are now doing early exits using
the VSTART_CHECK_EARLY_EXIT() macro. This macro will not only exit the
helper but also clear vstart.
We're still left with brconds that are skipping the helper, which is the
only place where we're clearing vstart. The pattern goes like this:
tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over);
(... calls helper that clears vstart ...)
gen_set_label(over);
return true;
This means that every time we jump to 'over' we're not clearing vstart,
which is an oversight that we're doing across the board.
Instead of setting vstart = 0 manually after each 'over' jump, remove
those brconds that are skipping helpers. The exception will be
trans_vmv_s_x() and trans_vfmv_s_f(): they don't use a helper and are
already clearing vstart manually in the 'over' label.
While we're at it, remove the (vl == 0) brconds from trans_rvbf16.c.inc
too since they're unneeded.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240314175704.478276-8-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
We're going to make changes that will required each helper to be
responsible for the 'vstart' management, i.e. we will relieve the
'vstart < vl' assumption that helpers have today.
Helpers are usually able to deal with vstart >= vl, i.e. doing nothing
aside from setting vstart = 0 at the end, but the tail update functions
will update the tail regardless of vstart being valid or not. Unifying
the tail update process in a single function that would handle the
vstart >= vl case isn't trivial (see [1] for more info).
This patch takes a blunt approach: do an early exit in every single
vector helper if vstart >= vl, unless the helper is guarded with
vstart_eq_zero in the translation. For those cases the helper is ready
to deal with cases where vl might be zero, i.e. throwing exceptions
based on it like vcpop_m() and first_m().
Helpers that weren't changed:
- vcpop_m(), vfirst_m(), vmsetm(), GEN_VEXT_VIOTA_M(): these are guarded
directly with vstart_eq_zero;
- GEN_VEXT_VCOMPRESS_VM(): guarded with vcompress_vm_check() that checks
vstart_eq_zero;
- GEN_VEXT_RED(): guarded with either reduction_check() or
reduction_widen_check(), both check vstart_eq_zero;
- GEN_VEXT_FRED(): guarded with either freduction_check() or
freduction_widen_check(), both check vstart_eq_zero.
Another exception is vext_ldst_whole(), who operates on effective vector
length regardless of the current settings in vtype and vl.
[1] https://lore.kernel.org/qemu-riscv/1590234b-0291-432a-a0fa-c5a6876097bc@linux.alibaba.com/
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240314175704.478276-7-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Commit 8ff8ac6329 added a conditional to guard the vext_ldst_whole()
helper if vstart >= evl. But by skipping the helper we're also not
setting vstart = 0 at the end of the insns, which is incorrect.
We'll move the conditional to vext_ldst_whole(), following in line with
the removal of all brconds vstart >= vl that the next patch will do. The
idea is to make the helpers responsible for their own vstart management.
Fix ldst_whole isns by:
- remove the brcond that skips the helper if vstart is >= evl;
- vext_ldst_whole() now does an early exit with the same check, where
evl = (vlenb * nf) >> log2_esz, but the early exit will also clear
vstart.
The 'width' param is now unneeded in ldst_whole_trans() and is also
removed. It was used for the evl calculation for the brcond and has no
other use now. The 'width' is reflected in vext_ldst_whole() via
log2_esz, which is encoded by GEN_VEXT_LD_WHOLE() as
"ctzl(sizeof(ETYPE))".
Suggested-by: Max Chou <max.chou@sifive.com>
Fixes: 8ff8ac6329 ("target/riscv: rvv: Add missing early exit condition for whole register load/store")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Max Chou <max.chou@sifive.com>
Message-ID: <20240314175704.478276-6-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
These insns have 2 paths: we'll either have vstart already cleared if
vstart_eq_zero or we'll do a brcond to check if vstart >= maxsz to call
the 'vmvr_v' helper. The helper will clear vstart if it executes until
the end, or if vstart >= vl.
For starters, the check itself is wrong: we're checking vstart >= maxsz,
when in fact we should use vstart in bytes, or 'startb' like 'vmvr_v' is
calling, to do the comparison. But even after fixing the comparison we'll
still need to clear vstart in the end, which isn't happening too.
We want to make the helpers responsible to manage vstart, including
these corner cases, precisely to avoid these situations:
- remove the wrong vstart >= maxsz cond from the translation;
- add a 'startb >= maxsz' cond in 'vmvr_v', and clear vstart if that
happens.
This way we're now sure that vstart is being cleared in the end of the
execution, regardless of the path taken.
Fixes: f714361ed7 ("target/riscv: rvv-1.0: implement vstart CSR")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240314175704.478276-5-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
vmvr_v isn't handling the case where the host might be big endian and
the bytes to be copied aren't sequential.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Fixes: f714361ed7 ("target/riscv: rvv-1.0: implement vstart CSR")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240314175704.478276-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
trans_vmv_x_s, trans_vmv_s_x, trans_vfmv_f_s and trans_vfmv_s_f aren't
setting vstart = 0 after execution. This is usually done by a helper in
vector_helper.c but these functions don't use helpers.
We'll set vstart after any potential 'over' brconds, and that will also
mandate a mark_vs_dirty() too.
Fixes: dedc53cbc9 ("target/riscv: rvv-1.0: integer scalar move instructions")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240314175704.478276-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The helper isn't setting env->vstart = 0 after its execution, as it is
expected from every vector instruction that completes successfully.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Message-ID: <20240314175704.478276-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Commit 3b8022269c added the capability of named features/profile
extensions to be added in riscv,isa. To do that we had to assign priv
versions for each one of them in isa_edata_arr[]. But this resulted in a
side-effect: vendor CPUs that aren't running priv_version_latest started
to experience warnings for these profile extensions [1]:
| $ qemu-system-riscv32 -M sifive_e
| qemu-system-riscv32: warning: disabling zic64b extension for hart
0x00000000 because privilege spec version does not match
| qemu-system-riscv32: warning: disabling ziccamoa extension for
hart 0x00000000 because privilege spec version does not match
This is benign as far as the CPU behavior is concerned since disabling
both extensions is a no-op (aside from riscv,isa). But the warnings are
unpleasant to deal with, especially because we're sending user warnings
for extensions that users can't enable/disable.
Instead of enabling all named features all the time, separate them by
priv version. During finalize() time, after we decided which
priv_version the CPU is running, enable/disable all the named extensions
based on the priv spec chosen. This will be enough for a bug fix, but as
a future work we should look into how we can name these extensions in a
way that we don't need an explicit ext_name => priv_ver as we're doing
here.
The named extensions being added in isa_edata_arr[] that will be
enabled/disabled based solely on priv version can be removed from
riscv_cpu_named_features[]. 'zic64b' is an extension that can be
disabled based on block sizes so it'll retain its own flag and entry.
[1] https://lists.gnu.org/archive/html/qemu-devel/2024-03/msg02592.html
Reported-by: Clément Chigot <chigot@adacore.com>
Fixes: 3b8022269c ("target/riscv: add riscv,isa to named features")
Suggested-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Tested-by: Clément Chigot <chigot@adacore.com>
Message-ID: <20240312203214.350980-1-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Daniel P. Berrangé <berrange@redhat.com> pointed out that the coroutine
pool size heuristic is very conservative. Instead of halving
max_map_count, he suggested reserving 5,000 mappings for non-coroutine
users based on observations of guests he has access to.
Fixes: 86a637e481 ("coroutine: cap per-thread local pool size")
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20240320181232.1464819-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
an attempt to spawn child process is made
* Reduce priority of POLLHUP handling for socket chardevs
to increase likelihood of pending data being processed
* Fix chardev I/O main loop integration when TLS is enabled
* Fix broken crypto test suite when distro disables
SM4 algorithm
* Improve diagnosis of failed crypto tests
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Merge tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu into staging
* Use EPERM for seccomp filter instead of killing QEMU when
an attempt to spawn child process is made
* Reduce priority of POLLHUP handling for socket chardevs
to increase likelihood of pending data being processed
* Fix chardev I/O main loop integration when TLS is enabled
* Fix broken crypto test suite when distro disables
SM4 algorithm
* Improve diagnosis of failed crypto tests
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# gpg: Signature made Tue 19 Mar 2024 20:20:33 GMT
# gpg: using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg: aka "Daniel P. Berrange <berrange@redhat.com>" [full]
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF
* tag 'misc-fixes-pull-request' of https://gitlab.com/berrange/qemu:
crypto: report which ciphers are being skipped during tests
crypto: use error_abort for unexpected failures
crypto: query gcrypt for cipher availability
crypto: factor out conversion of QAPI to gcrypt constants
Revert "chardev: use a child source for qio input source"
Revert "chardev/char-socket: Fix TLS io channels sending too much data to the backend"
chardev: lower priority of the HUP GSource in socket chardev
seccomp: report EPERM instead of killing process for spawn set
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
