Kevin Wolf [Wed, 31 Jul 2024 12:32:05 +0000 (14:32 +0200)]
scsi-block: Don't skip callback for sgio error status/driver_status
Instead of calling into scsi_handle_rw_error() directly from
scsi_block_sgio_complete() and skipping the normal callback, go through
the normal cleanup path by calling the callback with a positive error
value.
The important difference here is not only that the code path is cleaner,
but that the callbacks set r->req.aiocb = NULL. If we skip setting this
and the error action is BLOCK_ERROR_ACTION_STOP, resuming the VM runs
into an assertion failure in scsi_read_data() or scsi_write_data()
because the dangling aiocb pointer is unexpected.
Fixes: a108557bbf ("scsi: inline sg_io_sense_from_errno() into the callers.") Buglink: https://issues.redhat.com/browse/RHEL-50000 Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240731123207.27636-3-kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Wed, 31 Jul 2024 12:32:04 +0000 (14:32 +0200)]
scsi-disk: Use positive return value for status in dma_readv/writev
In some error cases, scsi_block_sgio_complete() never calls the passed
callback, but directly completes the request. This leads to bugs because
its error paths are not exact copies of what the callback would normally
do.
In preparation to fix this, allow passing positive return values to the
callbacks that represent the status code that should be used to complete
the request.
scsi_handle_rw_error() already handles positive values for its ret
parameter because scsi_block_sgio_complete() calls directly into it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20240731123207.27636-2-kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Thu, 27 Jun 2024 18:12:45 +0000 (20:12 +0200)]
block/graph-lock: Make WITH_GRAPH_RDLOCK_GUARD() fully checked
Upstream clang 18 (and backports to clang 17 in Fedora and RHEL)
implemented support for __attribute__((cleanup())) in its Thread Safety
Analysis, so we can now actually have a proper implementation of
WITH_GRAPH_RDLOCK_GUARD() that understands when we acquire and when we
release the lock.
-Wthread-safety is now only enabled if the compiler is new enough to
understand this pattern. In theory, we could have used some #ifdefs to
keep the existing basic checks on old compilers, but as long as someone
runs a newer compiler (and our CI does), we will catch locking problems,
so it's probably not worth keeping multiple implementations for this.
The implementation can't use g_autoptr any more because the glib macros
define wrapper functions that don't have the right TSA attributes, so
the compiler would complain about them. Just use the cleanup attribute
directly instead.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20240627181245.281403-3-kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Thu, 27 Jun 2024 18:12:44 +0000 (20:12 +0200)]
block-copy: Fix missing graph lock
The graph lock needs to be held when calling bdrv_co_pdiscard(). Fix
block_copy_task_entry() to take it for the call.
WITH_GRAPH_RDLOCK_GUARD() was implemented in a weak way because of
limitations in clang's Thread Safety Analysis at the time, so that it
only asserts that the lock is held (which allows calling functions that
require the lock), but we never deal with the unlocking (so even after
the scope of the guard, the compiler assumes that the lock is still
held). This is why the compiler didn't catch this locking error.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20240627181245.281403-2-kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Markus Armbruster [Thu, 18 Jul 2024 12:36:09 +0000 (14:36 +0200)]
qapi-block-core: Clean up blockdev-snapshot-internal-sync doc
BlockdevSnapshotInternal is the arguments type of command
blockdev-snapshot-internal-sync. Its doc comment contains this note:
# .. note:: In a transaction, if @name is empty or any snapshot matching
# @name exists, the operation will fail. Only some image formats
# support it; for example, qcow2, and rbd.
"In a transaction" is misleading, and "if @name is empty or any
snapshot matching @name exists, the operation will fail" is redundant
with the command's Errors documentation. Drop.
The remainder is fine. Move it to the command's doc comment, where it
is more prominently visible, with a slight rephrasing for clarity.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240718123609.3063055-1-armbru@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Daniel Henrique Barboza [Sat, 3 Aug 2024 18:12:24 +0000 (15:12 -0300)]
roms/opensbi: Update to v1.5.1
A new minor version of OpenSBI was just released after our bump to
OpenSBI 1.5. It contains significant bug fixes that it's worth doing
a new update for QEMU 9.1.
Submodule roms/opensbi 455de672dd..43cace6c36:
> lib: sbi: check result of pmp_get() in is_pmp_entry_mapped()
> lib: sbi: fwft: fix incorrect size passed to sbi_zalloc()
> lib: sbi: dbtr: fix potential NULL pointer dereferences
> include: Adjust Sscofpmf mhpmevent mask for upper 8 bits
> lib: sbi_hsm: Save/restore menvcfg only when it exists
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240805120259.1705016-2-dbarboza@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Coverity complained about the possible out-of-bounds access with
counter_virt/counter_virt_prev because these two arrays are
accessed with privilege mode. However, these two arrays are accessed
only when virt is enabled. Thus, the privilege mode can't be M mode.
Add the asserts anyways to detect any wrong usage of these arrays
in the future.
Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Fixes: Coverity CID 1558459 Fixes: Coverity CID 1558462 Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240724-fixes-v1-1-4a64596b0d64@rivosinc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
LIU Zhiwei [Fri, 2 Aug 2024 07:24:17 +0000 (15:24 +0800)]
target/riscv: Relax fld alignment requirement
According to the risc-v specification:
"FLD and FSD are only guaranteed to execute atomically if the effective
address is naturally aligned and XLEN≥64."
We currently implement fld as MO_ATOM_IFALIGN when XLEN < 64, which does
not violate the rules. But it will hide some problems. So relax it to
MO_ATOM_NONE.
Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240802072417.659-4-zhiwei_liu@linux.alibaba.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
LIU Zhiwei [Fri, 2 Aug 2024 07:24:16 +0000 (15:24 +0800)]
target/riscv: Add MXLEN check for F/D/Q applies to zama16b
Zama16b loads and stores of no more than MXLEN bits defined in the F, D, and Q
extensions.
Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240802072417.659-3-zhiwei_liu@linux.alibaba.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
LIU Zhiwei [Fri, 2 Aug 2024 07:24:15 +0000 (15:24 +0800)]
target/riscv: Remove redundant insn length check for zama16b
Compressed encodings also applies to zama16b.
https://github.com/riscv/riscv-isa-manual/pull/1557
Suggested-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240802072417.659-2-zhiwei_liu@linux.alibaba.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
* tag 'pull-qapi-2024-08-05' of https://repo.or.cz/qemu/armbru:
qmp: Fix higher half vaddrs for [p]memsave
qapi: Refill doc comments to conform to conventions
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Josh Junon [Fri, 2 Aug 2024 14:07:03 +0000 (16:07 +0200)]
qmp: Fix higher half vaddrs for [p]memsave
Fixes higher-half address parsing for QMP commands
`[p]memsave`.
Signed-off-by: Josh Junon <junon@oro.sh>
Message-ID: <20240802140704.13591-1-junon@oro.sh> Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Subject tweaked, and one PRId64 updated to PRIu64] Signed-off-by: Markus Armbruster <armbru@redhat.com>
Markus Armbruster [Mon, 29 Jul 2024 06:52:20 +0000 (08:52 +0200)]
qapi: Refill doc comments to conform to conventions
Sweep the entire documentation again. Last done in commit 209e64d9edf (qapi: Refill doc comments to conform to current
conventions).
To check the generated documentation does not change, I compared the
generated HTML before and after this commit with "wdiff -3". Finds no
differences. Comparing with diff is not useful, as the reflown
paragraphs are visible there.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240729065220.860163-1-armbru@redhat.com>
[Straightforward conflict with commit 442110bc6f3 resolved]
Richard Henderson [Mon, 5 Aug 2024 00:32:13 +0000 (10:32 +1000)]
Merge tag 'pull-misc-20240805' of https://gitlab.com/rth7680/qemu into staging
linux-user/elfload: Fix pr_pid values in core files
util: Add qemu_close_all_open_fd
net/tap: Use qemu_close_all_open_fd
# -----BEGIN PGP SIGNATURE-----
#
# iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmawHSsdHHJpY2hhcmQu
# aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV8mhQgAlNjO1eeeQmgJvKpk
# BwXx7NnXi9d8UZCA5EASK9SQVJC3eYIlMayX9byPmZZ6XJaOBRzgIzm612HkKLYn
# yIqmLb0UhUTT+VKW7Kob/wGslB/PJWSKQ3dvZFaaLMfB6L3BtpwUAFFU5hwkODU/
# TS4qici1W+eW7hInNSH5dgA68UGPcfDBEo4ITW91DbTSZRNz9RP4b2Ak+Wgv30Ux
# 2yEVsP6rBqBSxglbafcywWbYs5sX3EvSUJo4mVm8Ku4zriAf87Y9Da3irpZ4WYgi
# 02f+/GGAv9kiGbf9jPrQTD0O8tmp4Z6JMWxEOfMsCj+KCT2fHSSqcBHTU3RN0guB
# uaxx6w==
# =U5cs
# -----END PGP SIGNATURE-----
# gpg: Signature made Mon 05 Aug 2024 10:30:35 AM AEST
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate]
* tag 'pull-misc-20240805' of https://gitlab.com/rth7680/qemu:
net/tap: Use qemu_close_all_open_fd()
qemu/osdep: Add excluded fd parameter to qemu_close_all_open_fd()
net/tap: Factorize fd closing after forking
qemu/osdep: Split qemu_close_all_open_fd() and add fallback
qemu/osdep: Move close_all_open_fds() to oslib-posix
linux-user/elfload: Fix pr_pid values in core files
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Clément Léger [Fri, 2 Aug 2024 14:54:20 +0000 (16:54 +0200)]
qemu/osdep: Add excluded fd parameter to qemu_close_all_open_fd()
In order for this function to be usable by tap.c code, add a list of
file descriptors that should not be closed.
Signed-off-by: Clément Léger <cleger@rivosinc.com>
Message-ID: <20240802145423.3232974-5-cleger@rivosinc.com>
[rth: Use max_fd in qemu_close_all_open_fd_close_range] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Clément Léger [Fri, 2 Aug 2024 14:54:18 +0000 (16:54 +0200)]
qemu/osdep: Split qemu_close_all_open_fd() and add fallback
In order to make it cleaner, split qemu_close_all_open_fd() logic into
multiple subfunctions (close with close_range(), with /proc/self/fd and
fallback).
Signed-off-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240802145423.3232974-3-cleger@rivosinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Fri, 2 Aug 2024 21:26:26 +0000 (07:26 +1000)]
Merge tag 'migration-20240802-pull-request' of https://gitlab.com/farosas/qemu into staging
Migration pull request
- Akihiko Odaki's fix for a memory leak on ppc migration
- Fabiano's fix for asserts during multifd error handling
# -----BEGIN PGP SIGNATURE-----
#
# iQJEBAABCAAuFiEEqhtIsKIjJqWkw2TPx5jcdBvsMZ0FAmas698QHGZhcm9zYXNA
# c3VzZS5kZQAKCRDHmNx0G+wxnQYFEACNaJderA8VNnyAKyAFD5hCWeZnpZj3UfvO
# l/3CLKBx2WPu+IAMQ+32b8Hpy5v1r4HRkicn0FId86dnbWflqAZJ0wilnPDrzbNG
# oJ9IgDCPobdNCI1JgGVGCddOwraKKRo6/7e7TE5ME3MPV4AZRHs0LGfYPVxGD/5L
# gbV1Zun9SvMk7u/SjE0j8ZG/L3N2rA23Ns/aNfN7KFRLWBccpJ6vKs0q9v6SQnMQ
# iAAypK3d0szCBiuD8iiawPgh6K6pwA7OZ+SmtyGanK2gfNvdJ9YZArbxM3yzqUmJ
# IAYvxXO/xy/cwdGELsjr0lrUFSH15PeQlSUKQ0WEVMv3/okd88jZv7xbyAZy2u5v
# QZXmvb4QMH3wJUZ2rGG+DuZoZIiTL20PPnujxO/kvbhmXjsp4TuDJbKkwW7nvP2Y
# ISuHCBsHcskScu0TSoZ0Fj3sSBXHV5Qw0jZiP37lgjf4eXgJzkadAUh3DCuUI62O
# lqtFxFpBODdKtYfSYR+ThZXhicZx9DOxJHJBU8bXbBi3iGpVZl9O8ywgGi8wpQzh
# cAJk9GbXp/77N94sexzTUHK9ttE00VQUvl8rad+HfZUsBE9E8MsW0zzUaZ8VAH3c
# wzjg1S08rS48c5Ju5PO8iY2Oi5apxdGy9SOyEdpxs+ZE37GbwjoY1Q7C2U+jj72E
# q4/z0NKuWw==
# =1iRF
# -----END PGP SIGNATURE-----
# gpg: Signature made Sat 03 Aug 2024 12:23:27 AM AEST
# gpg: using RSA key AA1B48B0A22326A5A4C364CFC798DC741BEC319D
# gpg: issuer "farosas@suse.de"
# gpg: Good signature from "Fabiano Rosas <farosas@suse.de>" [unknown]
# gpg: aka "Fabiano Almeida Rosas <fabiano.rosas@suse.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: AA1B 48B0 A223 26A5 A4C3 64CF C798 DC74 1BEC 319D
* tag 'migration-20240802-pull-request' of https://gitlab.com/farosas/qemu:
migration/multifd: Fix multifd_send_setup cleanup when channel creation fails
migration: Fix cleanup of iochannel in file migration
migration: Free removed SaveStateEntry
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Akihiko Odaki [Fri, 2 Aug 2024 08:37:52 +0000 (17:37 +0900)]
hvf: arm: Fix hvf_sysreg_read_cp() call
Changed val from uint64_t to a pointer to uint64_t in hvf_sysreg_read,
but didn't change its usage in hvf_sysreg_read_cp call.
Fixes: e9e640148c ("hvf: arm: Raise an exception for sysreg by default") Reported-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240802-hvf-v1-1-e2c0292037e5@daynix.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2) (theoretical) If channel n-1 already started creation it will
defeat the purpose of the channels_created logic which is in place
to avoid migrate_fd_cleanup() to run while channels are still being
created.
This cannot really happen today because the current failure cases
for multifd_new_send_channel_create() are all synchronous,
resulting from qio_channel_file_new_path() getting a bad
filename. This would hit all channels equally.
But I don't want to set a trap for future people, so have all
channels try to create (even if failing), and only fail after the
channels_created semaphore has been posted.
While here, remove the error_report_err call. There's one already at
migrate_fd_cleanup later on.
Paolo Bonzini [Thu, 1 Aug 2024 23:43:37 +0000 (01:43 +0200)]
target/i386: SEV: fix mismatch in vcek-disabled property name
The vcek-disabled property of the sev-snp-guest object is misspelled
vcek-required (which I suppose would use the opposite polarity) in
the call to object_class_property_add_bool(). Fix it.
Richard Henderson [Fri, 2 Aug 2024 05:53:54 +0000 (15:53 +1000)]
Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging
# -----BEGIN PGP SIGNATURE-----
#
# iQEzBAABCAAdFiEEIV1G9IJGaJ7HfzVi7wSWWzmNYhEFAmasTgwACgkQ7wSWWzmN
# YhFUtAgAq45v7fQJ7cKKwRam/VrIkxT5cM59ODwzLSL9kPWfL6f/bJ7xM/zvLyvn
# LNBXFWWu+eNKA73f95cckZwaqZ4U6giGbiesCACn1IpgVtieLS+Lq78jsifKIAsR
# yxFvbT9oLhU0dZ1Up3+isc6V+jeAE4ZYu4KOiIt7PscTEzkJl+vSUjN4X9rRVtUD
# PzONUacL6MoTJtX8UZJZXNzLN9JTsN39Gx+LSDGQ27MDmDvE3R9BW+T0ZgF9JQZ7
# wnrL5sharqF3gxa7X55fPBI1qwY5gWcH0yyJpRdM8guA13vhtvlrhNSypip9eKWi
# HtPHUTKEB5YOvF236WRiuQPIm/GNpA==
# =7HGN
# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 02 Aug 2024 01:10:04 PM AEST
# gpg: using RSA key 215D46F48246689EC77F3562EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [undefined]
# 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: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* tag 'net-pull-request' of https://github.com/jasowang/qemu:
net: Reinstate '-net nic, model=help' output as documented in man page
net: update netdev stream man page with the reconnect parameter
net: update netdev dgram man page with unix socket
net: update netdev stream man page with unix socket
net: update netdev stream/dgram man page
virtio-net: Fix network stall at the host side waiting for kick
virtio-net: Ensure queue index fits with RSS
rtl8139: Fix behaviour for old kernels.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
David Woodhouse [Tue, 9 Jul 2024 12:34:44 +0000 (13:34 +0100)]
net: Reinstate '-net nic, model=help' output as documented in man page
While refactoring the NIC initialization code, I broke '-net nic,model=help'
which no longer outputs a list of available NIC models.
Fixes: 2cdeca04adab ("net: report list of available models according to platform") Cc: qemu-stable@nongnu.org Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Jason Wang <jasowang@redhat.com>
net: update netdev stream man page with the reconnect parameter
"-netdev stream" supports a reconnect parameter that attempts to
reconnect automatically the socket if it is disconnected. The code
has been added but the man page has not been updated.
Fixes: 148fbf0d58a6 ("net: stream: add a new option to automatically reconnect" Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
net: update netdev stream man page with unix socket
Add the description of "-netdev stream" with a unix domain socket.
The code has been added but the man page has not been updated.
Include an example how to use "-netdev stream" and "passt" in place
of "-netdev user".
("passt" is a non privileged translation proxy between layer-2, like
"-netdev stream", and layer-4 on host, like TCP, UDP, ICMP/ICMPv6 echo)
Fixes: 13c6be96618c ("net: stream: add unix socket") Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
thomas [Fri, 12 Jul 2024 03:10:53 +0000 (11:10 +0800)]
virtio-net: Fix network stall at the host side waiting for kick
Patch 06b12970174 ("virtio-net: fix network stall under load")
added double-check to test whether the available buffer size
can satisfy the request or not, in case the guest has added
some buffers to the avail ring simultaneously after the first
check. It will be lucky if the available buffer size becomes
okay after the double-check, then the host can send the packet
to the guest. If the buffer size still can't satisfy the request,
even if the guest has added some buffers, viritio-net would
stall at the host side forever.
The patch enables notification and checks whether the guest has
added some buffers since last check of available buffers when
the available buffers are insufficient. If no buffer is added,
return false, else recheck the available buffers in the loop.
If the available buffers are sufficient, disable notification
and return true.
Changes:
1. Change the return type of virtqueue_get_avail_bytes() from void
to int, it returns an opaque that represents the shadow_avail_idx
of the virtqueue on success, else -1 on error.
2. Add a new API: virtio_queue_enable_notification_and_check(),
it takes an opaque as input arg which is returned from
virtqueue_get_avail_bytes(). It enables notification firstly,
then checks whether the guest has added some buffers since
last check of available buffers or not by virtio_queue_poll(),
return ture if yes.
After some time, the host loses connection to the guest,
the guest can send packet to the host, but can't receive
packet from the host.
It's more likely to happen if SWIOTLB is enabled in the guest,
allocating and freeing bounce buffer takes some CPU ticks,
copying from/to bounce buffer takes more CPU ticks, compared
with that there is no bounce buffer in the guest.
Once the rate of producing packets from the host approximates
the rate of receiveing packets in the guest, the guest would
loop in NAPI.
receive packets ---
| |
v |
free buf virtnet_poll
| |
v |
add buf to avail ring ---
|
| need kick the host?
| NAPI continues
v
receive packets ---
| |
v |
free buf virtnet_poll
| |
v |
add buf to avail ring ---
|
v
... ...
On the other hand, the host fetches free buf from avail
ring, if the buf in the avail ring is not enough, the
host notifies the guest the event by writing the avail
idx read from avail ring to the event idx of used ring,
then the host goes to sleep, waiting for the kick signal
from the guest.
Once the guest finds the host is waiting for kick singal
(in virtqueue_kick_prepare_split()), it kicks the host.
The host may stall forever at the sequences below:
In the first loop of NAPI above, indicated in the range of
virtnet_poll above, the host is sending packets while the
guest is receiving packets and adding buffers.
step 1: The buf is not enough, for example, a big packet
needs 5 buf, but the available buf count is 3.
The host read current avail idx.
step 2: The guest adds some buf, then checks whether the
host is waiting for kick signal, not at this time.
The used ring is not empty, the guest continues
the second loop of NAPI.
step 3: The host writes the avail idx read from avail
ring to used ring as event idx via
virtio_queue_set_notification(q->rx_vq, 1).
step 4: At the end of the second loop of NAPI, recheck
whether kick is needed, as the event idx in the
used ring written by the host is beyound the
range of kick condition, the guest will not
send kick signal to the host.
Fixes: 06b12970174 ("virtio-net: fix network stall under load") Cc: qemu-stable@nongnu.org Signed-off-by: Wencheng Yang <east.moutain.yang@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
Ensure the queue index points to a valid queue when software RSS
enabled. The new calculation matches with the behavior of Linux's TAP
device with the RSS eBPF program.
Fixes: 4474e37a5b3a ("virtio-net: implement RX RSS processing") Reported-by: Zhibin Hu <huzhibin5@huawei.com> Cc: qemu-stable@nongnu.org Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
* tag 'pull-target-arm-20240801' of https://git.linaro.org/people/pmaydell/qemu-arm:
target/xtensa: Correct assert condition in handle_interrupt()
target/arm: Handle denormals correctly for FMOPA (widening)
accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
hw/arm/mps2-tz.c: fix RX/TX interrupts order
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Thu, 1 Aug 2024 10:52:39 +0000 (20:52 +1000)]
Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging
virtio,pci,pc: fixes
revert virtio pci/SR-IOV emulation at author's request
a couple of fixes in virtio,vtd
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# -----BEGIN PGP SIGNATURE-----
#
# iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmarSFUPHG1zdEByZWRo
# YXQuY29tAAoJECgfDbjSjVRp7fwH/3wNCGhgHhF5dhKRKRn8hqhxYl2rXnv0LKYI
# Rgsoxh3kw6oKBXxLG/B4V2GkqDSU8q8NuHnvGmmAUQ/uHmwTWbBbrZ+HwMMmaRhT
# Ox8kIXiVYAtw24yLKDvyoKbMLjLKb9/QqTT4rbsQ9yl5PLxwoGGJEu/ifM1MbZZY
# f5CDtj3hRArIZEjMt0Q3h+G7///BRVZxQ/0de57whGXcr349qgMpiIThvlCOj7Yf
# rQ68AGS4yk1Jk0oxiYyWjo43o8JbB5bMnCrkzDy4ZdY5Sw9zGb48CmcrBUl4J9lv
# NVDYK63dsvRS0ew7PxaEwu32MIQLJcn5s521m81/ZAhbdyzLnlI=
# =/2+K
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 01 Aug 2024 06:33:25 PM AEST
# gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg: issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [undefined]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [undefined]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# 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
* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu:
intel_iommu: Fix for IQA reg read dropped DW field
hw/i386/amd_iommu: Don't leak memory in amdvi_update_iotlb()
Revert "hw/pci: Rename has_power to enabled"
Revert "hw/ppc/spapr_pci: Do not create DT for disabled PCI device"
Revert "hw/ppc/spapr_pci: Do not reject VFs created after a PF"
Revert "pcie_sriov: Do not manually unrealize"
Revert "pcie_sriov: Ensure VF function number does not overflow"
Revert "pcie_sriov: Reuse SR-IOV VF device instances"
Revert "pcie_sriov: Release VFs failed to realize"
Revert "pcie_sriov: Remove num_vfs from PCIESriovPF"
Revert "pcie_sriov: Register VFs after migration"
Revert "hw/pci: Fix SR-IOV VF number calculation"
Revert "pcie_sriov: Ensure PF and VF are mutually exclusive"
Revert "pcie_sriov: Check PCI Express for SR-IOV PF"
Revert "pcie_sriov: Allow user to create SR-IOV device"
Revert "virtio-pci: Implement SR-IOV PF"
Revert "virtio-net: Implement SR-IOV VF"
Revert "docs: Document composable SR-IOV device"
virtio-rng: block max-bytes=0
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Peter Maydell [Wed, 31 Jul 2024 17:22:46 +0000 (18:22 +0100)]
target/xtensa: Correct assert condition in handle_interrupt()
In commit ad18376b90c8101 we added an assert that the level value was
in-bounds for the array we're about to index into. However, the
assert condition is wrong -- env->config->interrupt_vector is an
array of uint32_t, so we should bounds check the index against
ARRAY_SIZE(...), not against sizeof().
Resolves: Coverity CID 1507131 Fixes: ad18376b90c8101 ("target/xtensa: Assert that interrupt level is within bounds") Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240731172246.3682311-1-peter.maydell@linaro.org
Peter Maydell [Thu, 1 Aug 2024 09:15:03 +0000 (10:15 +0100)]
target/arm: Handle denormals correctly for FMOPA (widening)
The FMOPA (widening) SME instruction takes pairs of half-precision
floating point values, widens them to single-precision, does a
two-way dot product and accumulates the results into a
single-precision destination. We don't quite correctly handle the
FPCR bits FZ and FZ16 which control flushing of denormal inputs and
outputs. This is because at the moment we pass a single float_status
value to the helper function, which then uses that configuration for
all the fp operations it does. However, because the inputs to this
operation are float16 and the outputs are float32 we need to use the
fp_status_f16 for the float16 input widening but the normal fp_status
for everything else. Otherwise we will apply the flushing control
FPCR.FZ16 to the 32-bit output rather than the FPCR.FZ control, and
incorrectly flush a denormal output to zero when we should not (or
vice-versa).
(In commit 207d30b5fdb5b we tried to fix the FZ handling but
didn't get it right, switching from "use FPCR.FZ for everything" to
"use FPCR.FZ16 for everything".)
Pass the CPU env to the sme_fmopa_h helper instead of an fp_status
pointer, and have the helper pass an extra fp_status into the
f16_dotadd() function so that we can use the right status for the
right parts of this operation.
Cc: qemu-stable@nongnu.org Fixes: 207d30b5fdb5 ("target/arm: Use FPST_F16 for SME FMOPA (widening)")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2373 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Salil Mehta [Thu, 1 Aug 2024 09:15:03 +0000 (10:15 +0100)]
accel/kvm/kvm-all: Fixes the missing break in vCPU unpark logic
Loop should exit prematurely on successfully finding out the parked vCPU (struct
KVMParkedVcpu) in the 'struct KVMState' maintained 'kvm_parked_vcpus' list of
parked vCPUs.
Fixes: Coverity CID 1558552 Fixes: 08c3286822 ("accel/kvm: Extract common KVM vCPU {creation,parking} code") Reported-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20240725145132.99355-1-salil.mehta@huawei.com Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Message-ID: <CAFEAcA-3_d1c7XSXWkFubD-LsW5c5i95e6xxV09r2C9yGtzcdA@mail.gmail.com> Signed-off-by: Salil Mehta <salil.mehta@huawei.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Marco Palumbi [Thu, 1 Aug 2024 09:15:02 +0000 (10:15 +0100)]
hw/arm/mps2-tz.c: fix RX/TX interrupts order
The order of the RX and TX interrupts are swapped.
This commit fixes the order as per the following documents:
* https://developer.arm.com/documentation/dai0505/latest/
* https://developer.arm.com/documentation/dai0521/latest/
* https://developer.arm.com/documentation/dai0524/latest/
* https://developer.arm.com/documentation/dai0547/latest/
Cc: qemu-stable@nongnu.org Signed-off-by: Marco Palumbi <Marco.Palumbi@tii.ae>
Message-id: 20240730073123.72992-1-marco@palumbi.it Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
intel_iommu: Fix for IQA reg read dropped DW field
If VT-D hardware supports scalable mode, Linux will set the IQA DW field
(bit11). In qemu, the vtd_mem_write and vtd_update_iq_dw set DW field well.
However, vtd_mem_read the DW field wrong because "& VTD_IQA_QS" dropped the
value of DW.
Replace "&VTD_IQA_QS" with "& (VTD_IQA_QS | VTD_IQA_DW_MASK)" could save
the DW field.
Test patch as below:
config the "x-scalable-mode" option:
"-device intel-iommu,caching-mode=on,x-scalable-mode=on,aw-bits=48"
After Linux OS boot, check the IQA_REG DW Field by usage 1 or 2:
After fix:
cat /sys/kernel/debug/iommu/intel/iommu_regset |grep IQA
IQA 0x90 0x00000001001da801
Check DW field(bit11) is 1.
2. devmem2 read the IQA_REG (offset 0x90):
Before fix:
devmem2 0xfed90090
/dev/mem opened.
Memory mapped at address 0x7f72c795b000.
Value at address 0xFED90090 (0x7f72c795b090): 0x1DA001
After fix:
devmem2 0xfed90090
/dev/mem opened.
Memory mapped at address 0x7fc95281c000.
Value at address 0xFED90090 (0x7fc95281c090): 0x1DA801
Check DW field(bit11) is 1.
Signed-off-by: yeeli <seven.yi.lee@gmail.com>
Message-Id: <20240725031858.1529902-1-seven.yi.lee@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Peter Maydell [Wed, 31 Jul 2024 17:00:19 +0000 (18:00 +0100)]
hw/i386/amd_iommu: Don't leak memory in amdvi_update_iotlb()
In amdvi_update_iotlb() we will only put a new entry in the hash
table if to_cache.perm is not IOMMU_NONE. However we allocate the
memory for the new AMDVIIOTLBEntry and for the hash table key
regardless. This means that in the IOMMU_NONE case we will leak the
memory we alloacted.
Move the allocations into the if() to the point where we know we're
going to add the item to the hash table.
Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2452 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20240731170019.3590563-1-peter.maydell@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
qemu-vmsr-helper: implement --verbose/-v
qemu-vmsr-helper: fix socket loop breakage
target/i386: Clean up error cases for vmsr_read_thread_stat()
target/i386: Fix typo that assign same value twice
target/i386/cpu: Mask off SGX/SGX_LC feature words for non-PC machine
target/i386/cpu: Add dependencies of CPUID 0x12 leaves
target/i386/cpu: Explicitly express SGX_LC and SGX feature words dependency
target/i386/cpu: Remove unnecessary SGX feature words checks
target/i386: Change unavail from u32 to u64
tests/vm/openbsd: Install tomli
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Paolo Bonzini [Tue, 30 Jul 2024 16:00:01 +0000 (18:00 +0200)]
qemu-vmsr-helper: implement --verbose/-v
Similar to qemu-pr-helper, do not print errors from the socket handling loop
unless a --verbose or -v option is provided explicitly on the command line.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 30 Jul 2024 15:55:37 +0000 (17:55 +0200)]
qemu-vmsr-helper: fix socket loop breakage
Between v5 and v6 of the series, the socket loop of qemu-vmsr-helper was changed to
allow sending multiple requests on the same socket. Unfortunately, the condition
of the while loop is botched and the loop will never be entered. Clean it up, and
also unify the handling of error reporting.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Zhao Liu [Tue, 30 Jul 2024 04:55:43 +0000 (12:55 +0800)]
target/i386/cpu: Add dependencies of CPUID 0x12 leaves
As SDM stated, CPUID 0x12 leaves depend on CPUID_7_0_EBX_SGX (SGX
feature word).
Since FEAT_SGX_12_0_EAX, FEAT_SGX_12_0_EBX and FEAT_SGX_12_1_EAX define
multiple feature words, add the dependencies of those registers to
report the warning to user if SGX is absent.
Zhao Liu [Tue, 30 Jul 2024 04:55:41 +0000 (12:55 +0800)]
target/i386/cpu: Remove unnecessary SGX feature words checks
CPUID.0x7.0.ebx and CPUID.0x7.0.ecx leaves have been expressed as the
feature word lists, and the Host capability support has been checked
in x86_cpu_filter_features().
Therefore, such checks on SGX feature "words" are redundant, and
the follow-up adjustments to those feature "words" will not actually
take effect.
Remove unnecessary SGX feature words related checks.
The feature word 'r' is a u64, and "unavail" is a u32, the operation
'r &= ~unavail' clears the high 32 bits of 'r'. This causes many vmx cases
in kvm-unit-tests to fail. Changing 'unavail' from u32 to u64 fixes this
issue.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2442 Fixes: 0b2757412cb1 ("target/i386: drop AMD machine check bits from Intel CPUID") Signed-off-by: Xiong Zhang <xiong.y.zhang@linux.intel.com> Link: https://lore.kernel.org/r/20240730082927.250180-1-xiong.y.zhang@linux.intel.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Richard Henderson [Wed, 31 Jul 2024 01:19:55 +0000 (11:19 +1000)]
Merge tag 'docs-testing-20240731' of https://github.com/philmd/qemu into staging
Docs & testing patch queue
- Test QAPI firmware.json schema (Thomas)
- Handle new env.doc2path() return value (Peter)
- Improve how assets are used by some Avocado tests (Cleber)
- Remove obsolete check for macOS 10 (Peter)
* tag 'docs-testing-20240731' of https://github.com/philmd/qemu:
osdep.h: Clean up no-longer-needed back-compat for macOS 10
tests/avocado: test_arm_emcraft_sf2: handle RW requirements for asset
tests/avocado: mips: add hint for fetchasset plugin
tests/avocado: mips: fallback to HTTP given certificate expiration
docs/sphinx/depfile.py: Handle env.doc2path() returning a Path not a str
docs: add test for firmware.json QAPI
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Wed, 31 Jul 2024 01:19:32 +0000 (11:19 +1000)]
Merge tag 'pull-maintainer-9.1-rc1-300724-1' of https://gitlab.com/stsquad/qemu into staging
Minor bug fixes and documentation cleanups:
- display packages in CI builds to catch changes
- stop compiler complaining about exec stacks in test cases
- stop loongarch compiler complaining about rwx in test cases
- improve docs on running TCG tests
- remove old unneeded avocado test for memory callback testing
- move test plugins into tcg testing dir
- clean-up and move plugin documentation to emulation section
- remove dead code from cache modelling plugin
- add compatibility workaround for lockstep plugin
- make some noise when building contrib plugins
* tag 'pull-maintainer-9.1-rc1-300724-1' of https://gitlab.com/stsquad/qemu:
plugin/loader: handle basic help query
contrib/plugins: add compat for g_memdup2
contrib/plugins: be more vocal building
contrib/plugins/cache.c: Remove redundant check of l2_access
docs: split TCG plugin usage from devel section
tests/tcg: move test plugins into tcg subdir
tests/avocado: remove tcg_plugins virt_mem_icount test
docs/devel: document how to run individual TCG tests
docs/devel: update the testing introduction
tests/tcg: update README
tests/tcg/loongarch64: Use --no-warn-rwx-segments to link system tests
tests/tcg: Use --noexecstack with assembler files
gitlab: display /packages.txt in build jobs
gitlab: record installed packages in /packages.txt in containers
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Peter Maydell [Tue, 30 Jul 2024 09:59:39 +0000 (10:59 +0100)]
osdep.h: Clean up no-longer-needed back-compat for macOS 10
Our official support policy only supports the most recent two
versions of macOS (currently macOS 13 Ventura and macOS 14 Sonoma),
and we already have code that assumes at least macOS 12 Monterey or
better. In commit 2d27c91e2b72ac7 we dropped some of the back-compat
code for older macOS versions, but missed the guard in osdep.h that
is providing a fallback for macOS 10 and earlier.
Simplify the ifdef to the "ifdef __APPLE__" that we use elsewhere for
"is this macOS?".
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240730095939.2781172-1-peter.maydell@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Cleber Rosa [Fri, 26 Jul 2024 13:44:33 +0000 (09:44 -0400)]
tests/avocado: test_arm_emcraft_sf2: handle RW requirements for asset
The asset used in the mentioned test gets truncated before it's used
in the test. This means that the file gets modified, and thus the
asset's expected hash doesn't match anymore. This causes cache misses
and re-downloads every time the test is re-run.
Let's make a copy of the asset so that the one in the cache is
preserved and the cache sees a hit on re-runs.
Signed-off-by: Cleber Rosa <crosa@redhat.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20240726134438.14720-9-crosa@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Cleber Rosa [Fri, 26 Jul 2024 13:44:27 +0000 (09:44 -0400)]
tests/avocado: mips: add hint for fetchasset plugin
Avocado's fetchasset plugin runs before the actual Avocado job (and
any test). It analyses the test's code looking for occurrences of
"self.fetch_asset()" in the either the actual test or setUp() method.
It's not able to fully analyze all code, though.
The way these tests are written, make the fetchasset plugin blind to
the assets. This adds some more code duplication, true, but it will
aid the fetchasset plugin to download or verify the existence of these
assets in advance.
Signed-off-by: Cleber Rosa <crosa@redhat.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240726134438.14720-3-crosa@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Cleber Rosa [Fri, 26 Jul 2024 13:44:26 +0000 (09:44 -0400)]
tests/avocado: mips: fallback to HTTP given certificate expiration
The SSL certificate installed at mipsdistros.mips.com has expired:
0 s:CN = mipsdistros.mips.com
i:C = US, O = Amazon, OU = Server CA 1B, CN = Amazon
a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
v:NotBefore: Dec 23 00:00:00 2019 GMT; NotAfter: Jan 23 12:00:00 2021 GMT
Because this project has no control over that certificate and host,
this falls back to plain HTTP instead. The integrity of the
downloaded files can be guaranteed by the existing hashes for those
files (which are not modified here).
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Cleber Rosa <crosa@redhat.com> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240726134438.14720-2-crosa@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Peter Maydell [Mon, 29 Jul 2024 12:05:33 +0000 (13:05 +0100)]
docs/sphinx/depfile.py: Handle env.doc2path() returning a Path not a str
In newer versions of Sphinx the env.doc2path() API is going to change
to return a Path object rather than a str. This was originally visible
in Sphinx 8.0.0rc1, but has been rolled back for the final 8.0.0
release. However it will probably emit a deprecation warning and is
likely to change for good in 9.0:
https://github.com/sphinx-doc/sphinx/issues/12686
Our use in depfile.py assumes a str, and if it is passed a Path
it will fall over:
Handler <function write_depfile at 0x77a1775ff560> for event 'build-finished' threw an exception (exception: unsupported operand type(s) for +: 'PosixPath' and 'str')
Wrapping the env.doc2path() call in str() will coerce a Path object
to the str we expect, and have no effect in older Sphinx versions
that do return a str.
Cc: qemu-stable@nongnu.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2458 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240729120533.2486427-1-peter.maydell@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Thomas Weißschuh [Wed, 24 Jul 2024 12:45:53 +0000 (14:45 +0200)]
docs: add test for firmware.json QAPI
To make sure that the QAPI description stays valid, add a testcase.
Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org> Link: https://lore.kernel.org/qemu-devel/d9ce0234-4beb-4b90-b14c-76810d3b81d7@linaro.org/ Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240724-qapi-firmware-json-v7-1-12341f7e362d@linutronix.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Richard Henderson [Tue, 30 Jul 2024 12:25:37 +0000 (22:25 +1000)]
Merge tag 'pull-target-arm-20240730' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
* hw/char/bcm2835_aux: Fix assert when receive FIFO fills up
* hw/arm/smmuv3: Assert input to oas2bits() is valid
* target/arm/kvm: Set PMU for host only when available
* target/arm/kvm: Do not silently remove PMU
* hvf: arm: Properly disable PMU
* hvf: arm: Do not advance PC when raising an exception
* hw/misc/bcm2835_property: several minor bugfixes
* target/arm: Don't assert for 128-bit tile accesses when SVL is 128
* target/arm: Fix UMOPA/UMOPS of 16-bit values
* target/arm: Ignore SMCR_EL2.LEN and SVCR_EL2.LEN if EL2 is not enabled
* system/physmem: Where we assume we have a RAM MR, assert it
* sh4, i386, m68k, xtensa, tricore, arm: fix minor Coverity issues
* tag 'pull-target-arm-20240730' of https://git.linaro.org/people/pmaydell/qemu-arm: (21 commits)
system/physmem: Where we assume we have a RAM MR, assert it
target/sh4: Avoid shift into sign bit in update_itlb_use()
target/i386: Remove dead assignment to ss in do_interrupt64()
target/m68k: avoid shift into sign bit in dump_address_map()
target/xtensa: Make use of 'segment' in pptlb helper less confusing
target/tricore: Use unsigned types for bitops in helper_eq_b()
target/arm: Ignore SMCR_EL2.LEN and SVCR_EL2.LEN if EL2 is not enabled
target/arm: Avoid shifts by -1 in tszimm_shr() and tszimm_shl()
target/arm: Fix UMOPA/UMOPS of 16-bit values
target/arm: Don't assert for 128-bit tile accesses when SVL is 128
hw/misc/bcm2835_property: Reduce scope of variables in mbox push function
hw/misc/bcm2835_property: Restrict scope of start_num, number, otp_row
hw/misc/bcm2835_property: Avoid overflow in OTP access properties
hw/misc/bcm2835_property: Fix handling of FRAMEBUFFER_SET_PALETTE
hvf: arm: Do not advance PC when raising an exception
hvf: arm: Properly disable PMU
hvf: arm: Raise an exception for sysreg by default
target/arm/kvm: Do not silently remove PMU
target/arm/kvm: Set PMU for host only when available
hw/arm/smmuv3: Assert input to oas2bits() is valid
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Alex Bennée [Mon, 29 Jul 2024 14:44:14 +0000 (15:44 +0100)]
plugin/loader: handle basic help query
As the list of options isn't fixed we do all the parsing by hand.
Without any named arguments we automatically fill the "file" option
with the value give so check if it is requesting help and dump some
basic usage text.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-15-alex.bennee@linaro.org>
Alex Bennée [Mon, 29 Jul 2024 14:44:13 +0000 (15:44 +0100)]
contrib/plugins: add compat for g_memdup2
We were premature if bumping this because some of our builds are still
on older glibs. Just copy the compat handler for now and we can remove
it later.
Fixes: ee293103b0 (plugins: update lockstep to use g_memdup2)
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2161 Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-14-alex.bennee@linaro.org>
Alex Bennée [Mon, 29 Jul 2024 14:44:12 +0000 (15:44 +0100)]
contrib/plugins: be more vocal building
With the conversion to meson and removing the old QEMU Makefile
baggage we became very silent when building the plugins. Bring in a
copy of the quiet-command logic (and some magic COMMAs) so we can at
least assure developers we are building them.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2457 Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-13-alex.bennee@linaro.org>
Peter Maydell [Mon, 29 Jul 2024 14:44:11 +0000 (15:44 +0100)]
contrib/plugins/cache.c: Remove redundant check of l2_access
In append_stats_line(), we have an expression
l2_access ? l2_miss_rate : 0.0
But this is inside an if (l2_access && l2_misses) { ... } block,
so Coverity points out that the false part of the ?: is dead code.
Remove the unnecessary test.
Resolves: Coverity CID 1522458 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240725164851.1930964-1-peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-12-alex.bennee@linaro.org>
Alex Bennée [Mon, 29 Jul 2024 14:44:10 +0000 (15:44 +0100)]
docs: split TCG plugin usage from devel section
The devel section is getting quite messy with the breakdown of the
example plugins which should be usable by users. As we mention plugins
in the emulation section along with semihosting move the overview
there leaving the development section about the details of writing
plugins.
While we are at make the headings nicer and convert the option lists
into nicely formatted tables.
Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-11-alex.bennee@linaro.org>
Alex Bennée [Mon, 29 Jul 2024 14:44:09 +0000 (15:44 +0100)]
tests/tcg: move test plugins into tcg subdir
You cannot use plugins without TCG enabled so it doesn't make sense to
have them separated off in the test directory structure. While we are
at it rename the directory to plugins to reflect the plural nature of
the directory and match up with contrib/plugins.
Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-10-alex.bennee@linaro.org>
Alex Bennée [Mon, 29 Jul 2024 14:44:08 +0000 (15:44 +0100)]
tests/avocado: remove tcg_plugins virt_mem_icount test
Since 4f8d886085 (tests/plugin/mem: migrate to new per_vcpu API) this
test was skipping due to not being able to run callback and inline
memory instrumentation at the same time.
However b480f7a621 (tests/plugin: add test plugin for inline
operations) tests for all this matching up so we don't need the
additional complexity in avocado.
Remove the test.
Fixes: 4f8d886085 Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-9-alex.bennee@linaro.org>
Alex Bennée [Mon, 29 Jul 2024 14:44:07 +0000 (15:44 +0100)]
docs/devel: document how to run individual TCG tests
Since 6f6ca067d2 (tests/tcg: add some help output for running
individual tests) we made it easier to run individual tests for a
given architecture. Lets reference that in the developer
documentation.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-8-alex.bennee@linaro.org>
Alex Bennée [Mon, 29 Jul 2024 14:44:06 +0000 (15:44 +0100)]
docs/devel: update the testing introduction
Move the mention of "check-help" up to the intro text and also mention
the meson test integration.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-7-alex.bennee@linaro.org>
Alex Bennée [Mon, 29 Jul 2024 14:44:05 +0000 (15:44 +0100)]
tests/tcg: update README
Update the document with details about the layout of tests. Remove the
out of date cris comments. Refer to the developer guide for details
about how to run the tests.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-6-alex.bennee@linaro.org>
Richard Henderson [Mon, 29 Jul 2024 14:44:04 +0000 (15:44 +0100)]
tests/tcg/loongarch64: Use --no-warn-rwx-segments to link system tests
Recent debian cross-linker for loongarch issues
ld: warning: hello has a LOAD segment with RWX permissions
This is partially related to tests/tcg/loongarch64/system/kernel.ld,
but is not fixed by explicitly adding a single LOAD PHDR.
Disable the warning, since it does not apply to kernel images.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240724010733.22129-3-richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-5-alex.bennee@linaro.org>
Richard Henderson [Mon, 29 Jul 2024 14:44:03 +0000 (15:44 +0100)]
tests/tcg: Use --noexecstack with assembler files
Add the --noexecstack assembler command-line option to avoid:
/usr/bin/ld: warning: boot.o: missing .note.GNU-stack section implies executable stack
/usr/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
which is enabled by default with current debian cross toolchains.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240724010733.22129-2-richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-4-alex.bennee@linaro.org>
Daniel P. Berrangé [Mon, 29 Jul 2024 14:44:02 +0000 (15:44 +0100)]
gitlab: display /packages.txt in build jobs
The lcitool created containers save the full distro package list
details into /packages.txt. The idea is that build jobs will 'cat'
this file, so that the build log has a record of what packages
were used. This is important info, because when it comes to debug
failures, the original container is often lost.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20240724095505.33544-3-berrange@redhat.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-3-alex.bennee@linaro.org>
Daniel P. Berrangé [Mon, 29 Jul 2024 14:44:01 +0000 (15:44 +0100)]
gitlab: record installed packages in /packages.txt in containers
The lcitool created containers save the full distro package list
details into /packages.txt. The idea is that build jobs will 'cat'
this file, so that the build log has a record of what packages
were used. This is important info, because when it comes to debug
failures, the original container is often lost.
This extends the manually written dockerfiles to also create the
/packages.txt file.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20240724095505.33544-2-berrange@redhat.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240729144414.830369-2-alex.bennee@linaro.org>
Richard Henderson [Tue, 30 Jul 2024 01:12:42 +0000 (11:12 +1000)]
Merge tag 'pull-misc-20240730' of https://gitlab.com/rth7680/qemu into staging
util/getauxval: Ensure setting errno if not found
util/getauxval: Use elf_aux_info on OpenBSD
linux-user: open_self_stat: Implement num_threads
target/rx: Use target_ulong for address in LI
* tag 'pull-misc-20240730' of https://gitlab.com/rth7680/qemu:
linux-user: open_self_stat: Implement num_threads
util/cpuinfo: Make use of elf_aux_info(3) on OpenBSD
linux-user/main: Check errno when getting AT_EXECFD
util/getauxval: Ensure setting errno if not found
target/rx: Use target_ulong for address in LI
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
projects / users / dwmw2 / qemu.git / log