The switch_mode() function is defined in target/arm/helper.c and used
only in that file and nowhere else, so we can make it file-local
rather than global.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181012144235.19646-3-peter.maydell@linaro.org
For AArch32, exception return happens through certain kinds
of CPSR write. We don't currently have any CPU_LOG_INT logging
of these events (unlike AArch64, where we log in the ERET
instruction). Add some suitable logging.
This will log exception returns like this:
Exception return from AArch32 hyp to usr PC 0x80100374
paralleling the existing logging in the exception_return
helper for AArch64 exception returns:
Exception return from AArch64 EL2 to AArch64 EL0 PC 0x8003045c
Exception return from AArch64 EL2 to AArch32 EL0 PC 0x8003045c
(Note that an AArch32 exception return can only be
AArch32->AArch32, never to AArch64.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181012144235.19646-2-peter.maydell@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181016223115.24100-9-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181016223115.24100-8-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Having V6 alone imply jazelle was wrong for cortex-m0.
Change to an assertion for V6 & !M.
This was harmless, because the only place we tested ARM_FEATURE_JAZELLE
was for 'bxj' in disas_arm(), which is unreachable for M-profile cores.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181016223115.24100-6-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Both arm and thumb2 division are controlled by the same ISAR field,
which takes care of the arm implies thumb case. Having M imply
thumb2 division was wrong for cortex-m0, which is v6m and does not
have thumb2 at all, much less thumb2 division.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181016223115.24100-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Most of the v8 extensions are self-contained within the ISAR
registers and are not implied by other feature bits, which
makes them the easiest to convert.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181016223115.24100-4-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Instantiating mps2-an505 (cortex-m33) will fail make check when
V7VE asserts that ID_ISAR0.Divide includes ARM division. It is
also wrong to include ARM_FEATURE_LPAE.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181016223115.24100-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Create struct ARMISARegisters, to be accessed during translation.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20181016223115.24100-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch extends the qemu-kvm state sync logic with support for
KVM_GET/SET_VCPU_EVENTS, giving access to yet missing SError exception.
And also it can support the exception state migration.
The SError exception states include SError pending state and ESR value,
the kvm_put/get_vcpu_events() will be called when set or get system
registers. When do migration, if source machine has SError pending,
QEMU will do this migration regardless whether the target machine supports
to specify guest ESR value, because if target machine does not support that,
it can also inject the SError with zero ESR value.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1538067351-23931-3-git-send-email-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Device models aren't supposed to go on fishing expeditions for
backends. They should expose suitable properties for the user to set.
For onboard devices, board code sets them.
Device ssi-sd picks up its block backend in its init() method with
drive_get_next() instead. This mistake is already marked FIXME since
commit af9e40a.
Unset user_creatable to remove the mistake from our external
interface. Since the SSI bus doesn't support hotplug, only -device
can be affected. Only certain ARM machines have ssi-sd and provide an
SSI bus for it; this patch breaks -device ssi-sd for these machines.
No actual use of -device ssi-sd is known.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-id: 20181009060835.4608-1-armbru@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2018-10-22' into staging
Error reporting patches for 2018-10-22
# gpg: Signature made Mon 22 Oct 2018 13:20:23 BST
# gpg: using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653
* remotes/armbru/tags/pull-error-2018-10-22: (40 commits)
error: Drop bogus "use error_setg() instead" admonitions
vpc: Fail open on bad header checksum
block: Clean up bdrv_img_create()'s error reporting
vl: Simplify call of parse_name()
vl: Fix exit status for -drive format=help
blockdev: Convert drive_new() to Error
vl: Assert drive_new() does not fail in default_drive()
fsdev: Clean up error reporting in qemu_fsdev_add()
spice: Clean up error reporting in add_channel()
tpm: Clean up error reporting in tpm_init_tpmdev()
numa: Clean up error reporting in parse_numa()
vnc: Clean up error reporting in vnc_init_func()
ui: Convert vnc_display_init(), init_keyboard_layout() to Error
ui/keymaps: Fix handling of erroneous include files
vl: Clean up error reporting in device_init_func()
vl: Clean up error reporting in parse_fw_cfg()
vl: Clean up error reporting in mon_init_func()
vl: Clean up error reporting in machine_set_property()
vl: Clean up error reporting in chardev_init_func()
qom: Clean up error reporting in user_creatable_add_opts_foreach()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In several places we use assert(FEATURE), and assume that if FEATURE
is disabled, all following code is removed as unreachable. Which allows
us to compile-out functions that are only present with FEATURE, and
have a link-time failure if the functions remain used.
MinGW does not mark its internal function _assert() as noreturn, so the
compiler cannot see when code is unreachable, which leads to link errors
for this host that are not present elsewhere.
The current build-time failure concerns 62823083b8, but I remember
having seen this same error before. Fix it once and for all for MinGW.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20181022181623.8810-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This new usernet option can be used to add data for option 66 (tftp
server name) in the BOOTP reply, which is useful in PXE based automatic
OS install such as OpenBSD.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
When user provides a long domainname or hostname that doesn't fit in the
DHCP packet, we mustn't overflow the response packet buffer. Instead,
report errors, following the g_warning() in the slirp->vdnssearch
branch.
Also check the strlen against 256 when initializing slirp, which limit
is also from the protocol where one byte represents the string length.
This gives an early error before the warning which is harder to notice
or diagnose.
Reported-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Fam Zheng <famz@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Fri 19 Oct 2018 04:16:03 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: (26 commits)
qemu-options: Fix bad "macaddr" property in the documentation
e1000: indicate dropped packets in HW counters
net: ignore packet size greater than INT_MAX
pcnet: fix possible buffer overflow
rtl8139: fix possible out of bound access
ne2000: fix possible out of bound access in ne2000_receive
clean up callback when del virtqueue
docs: Add COLO status diagram to COLO-FT.txt
COLO: quick failover process by kick COLO thread
COLO: notify net filters about checkpoint/failover event
filter-rewriter: handle checkpoint and failover event
filter: Add handle_event method for NetFilterClass
COLO: flush host dirty ram from cache
savevm: split the process of different stages for loadvm/savevm
qapi: Add new command to query colo status
qapi/migration.json: Rename COLO unknown mode to none mode.
qmp event: Add COLO_EXIT event to notify users while exited COLO
COLO: Flush memory data from ram cache
ram/COLO: Record the dirty pages that SVM received
COLO: Load dirty pages into SVM's RAM cache firstly
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Commit 97f40301f1 "error: Functions to report warnings and
informational messages" copied the "use error_setg() instead"
admonition from the error reporting functions to new functions even
though it doesn't actually apply there. Drop it. Also drop it from
vreport(), where it doesn't apply anymore.
Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181019123923.26649-1-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
nettle 2.7.1 was released in 2013 and all the distros that are build
target platforms for QEMU [1] include it:
RHEL-7: 2.7.1
Debian (Stretch): 3.3
Debian (Jessie): 2.7.1
OpenBSD (ports): 3.4
FreeBSD (ports): 3.4
OpenSUSE Leap 15: 3.4
Ubuntu (Xenial): 3.2
macOS (Homebrew): 3.4
Based on this, it is reasonable to require nettle >= 2.7.1 in QEMU
which allows for some conditional version checks in the code to be
removed.
[1] https://qemu.weilnetz.de/doc/qemu-doc.html#Supported-build-platforms
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
vpc_open() merely prints a warning when it finds a bad header
checksum. Turn that into a hard error.
Cc: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181017082702.5581-39-armbru@redhat.com>
[Error message capitalized for local consistency]
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
bdrv_img_create() takes an Error ** argument and uses it in the
conventional way, except for one place: when qemu_opts_do_parse()
fails, it first reports its error to stderr or the HMP monitor with
error_report_err(), then error_setg()'s a generic error.
When the caller reports that second error similarly, this produces two
consecutive error messages on stderr or the HMP monitor.
When the caller does something else with it, such as send it via QMP,
the first error still goes to stderr or the HMP monitor. Fortunately,
no such caller exists.
Simply use the first error as is. Update expected output of
qemu-iotest 049 accordingly.
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20181017082702.5581-37-armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
main() checks for parse_name() failure even though it can't actually
fail. That's okay. Simplify it to check by passing &error_fatal,
like the other users of qemu_opts_foreach().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181017082702.5581-36-armbru@redhat.com>
Calling error_report() from within a function that takes an Error **
argument is suspicious. drive_new() calls error_report() even though
it can run within drive_init_func(), which takes an Error ** argument.
drive_init_func()'s caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway:
* Convert drive_new() to Error
* Update add_init_drive() to report the error received from
drive_new()
* Make main() pass &error_fatal through qemu_opts_foreach(),
drive_init_func() to drive_new()
* Make default_drive() pass &error_abort through qemu_opts_foreach(),
drive_init_func() to drive_new()
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181017082702.5581-34-armbru@redhat.com>
If creating (empty) default drives fails, it's a bug. Therefore,
assert() is more appropriate than exit(1).
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20181017082702.5581-33-armbru@redhat.com>
Calling error_report() from within a function that takes an Error **
argument is suspicious. qemu_fsdev_add() does that, and its caller
fsdev_init_func() then fails without setting an error. Its caller
main(), via qemu_opts_foreach(), is fine with it, but clean it up
anyway.
Cc: Greg Kurz <groug@kaod.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Greg Kurz <groug@kaod.org>
Message-Id: <20181017082702.5581-32-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. add_channel() does that, and then exit()s. Its caller
main(), via qemu_opts_foreach(), is fine with it, but clean it up
anyway.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-31-armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. tpm_init_tpmdev() does that, and then fails without
setting an error. Its caller main(), via tpm_init() and
qemu_opts_foreach(), is fine with it, but clean it up anyway.
Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-Id: <20181017082702.5581-30-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. parse_numa() does that, and then fails without setting
an error. Its caller main(), via qemu_opts_foreach(), is fine with
it, but clean it up anyway.
While there, give parse_numa() internal linkage.
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20181017082702.5581-29-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. vnc_init_func() does that, and then fails without
setting an error. Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.
While there, drop a "Failed to start VNC server: " error message
prefix that doesn't really add value.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181017082702.5581-28-armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
While errors in the keyboard layout named with -k are fatal, errors in
included files are reported, but otherwise ignored:
$ cat worst
include bad
include worse
$ ls -l bad worse
ls: cannot access 'bad': No such file or directory
ls: cannot access 'worse': No such file or directory
$ qemu-system-x86_64 -nodefaults -S -monitor stdio -display vnc=:0 -k bad
QEMU 3.0.50 monitor - type 'help' for more information
(qemu) Could not read keymap file: 'bad'
$ qemu-system-x86_64 -nodefaults -S -monitor stdio -display vnc=:0 -k worst
QEMU 3.0.50 monitor - type 'help' for more information
(qemu) Could not read keymap file: 'bad'
Could not read keymap file: 'worse'
Fix that.
Note that parse_keyboard_layout() allocates the keymap, except when
it's parsing an include file. To keep error handling simple, move the
memory management to its caller init_keyboard_layout().
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181017082702.5581-26-armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. device_init_func() does that, and then fails without
setting an error. Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181017082702.5581-25-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. parse_fw_cfg() does that, and then fails without
setting an error. Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-24-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. mon_init_func() does that, and then fails without
setting an error. Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-23-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. machine_set_property() does that, and then fails without
setting an error. Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-22-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. chardev_init_func() does that, and then fails without
setting an error. Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-21-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. user_creatable_add_opts_foreach() does that, and then
fails without setting an error. Its caller main(), via
qemu_opts_foreach(), is fine with it, but clean it up anyway.
Cc: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-20-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. parse_add_fd() does that, and then fails without
setting an error. Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.
Also change call of cleanup_add_fd(), which can't fail, for symmetry.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-19-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. parse_sandbox() does that, and then fails without
setting an error. Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.
Cc: Eduardo Otubo <otubo@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Eduardo Otubo <otubo@redhat.com>
Message-Id: <20181017082702.5581-18-armbru@redhat.com>
The conversion of "xen-pci-passthrough" to realize() (commit
5a11d0f754, v2.6.0) neglected to convert the xen_pt_config_init()
error path. If xen_pt_config_init() fails, xen_pt_realize() reports
the error, then returns success without completing its job. I don't
know the exact impact, but it can't be good.
Belatedly convert the error path.
Fixes: 5a11d0f754
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Anthony Perard <anthony.perard@citrix.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20181017082702.5581-17-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. parse_numa_node() does that, and then exit()s. It
also passes &error_fatal to machine_set_cpu_numa_node(). Both wrong.
Attempting to configure numa when the machine doesn't support it kills
the VM:
$ qemu-system-x86_64 -nodefaults -S -display none -M none -preconfig -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 50, "minor": 0, "major": 3}, "package": "v3.0.0-837-gc5e4e49258"}, "capabilities": []}}
{"execute": "qmp_capabilities"}
{"return": {}}
{"execute": "set-numa-node", "arguments": {"type": "node"}}
NUMA is not supported by this machine-type
$ echo $?
1
Messed up when commit 64c2a8f6d3 and 7c88e65d9e (v2.10.0) added
incorrect error handling right next to correct examples. Latent bug
until commit f3be67812c (v3.0.0) made it accessible via QMP. Fairly
harmless in practice, because it's limited to RUN_STATE_PRECONFIG.
The fix is obvious: replace error_report(); exit() by error_setg();
return.
This affects parse_numa_node()'s other caller
numa_complete_configuration(): since it ignores errors, the "NUMA is
not supported by this machine-type" is now ignored, too. But that
error is as unexpected there as any other. Change it to abort on
error instead.
Fixes: f3be67812c
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20181017082702.5581-16-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. net_socket_fd_init() does that, and then fails without
setting an error. Wrong. I didn't analyze how exactly this can
break. A caller that reports the error on failure would crash.
Broken when commit c37f0bb1d0 (v2.11.0) converted the function to
Error. Fix by calling error_setg() instead of error_report().
Fixes: c37f0bb1d0
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-15-armbru@redhat.com>
When -netdev l2tpv3 fails, it first reports a specific error, then a
generic one, like this:
$ qemu-system-x86_64 -netdev l2tpv3,id=foo,src=,dst=,txsession=1
qemu-system-x86_64: -netdev l2tpv3,id=foo,src=,dst=,txsession=1: l2tpv3_open : could not resolve src, errno = Name or service not known
qemu-system-x86_64: Device 'l2tpv3' could not be initialized
With the command line, the messages go to stderr. In HMP, they go to
the monitor. In QMP, the second one becomes the error reply, and the
first one goes to stderr.
Convert net_init_tap() to Error. This suppresses the unwanted second
message, and makes the specific error the QMP error reply.
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-14-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. save_snapshot() and load_snapshot() do that, and then
fail without setting an error. Wrong. The HMP commands survive this
unscathed, since hmp_handle_error() does nothing when no error has
been set. Callers main() (on behalf of -loadvm) and
replay_vmstate_init() crash, but I'm not sure the error is possible
there.
Screwed up when commit 377b21ccea (v2.12.0) added incorrect error
handling right next to correct examples. Fix by calling error_setg()
instead of error_report().
Fixes: 377b21ccea
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-13-armbru@redhat.com>
Calling error_report() in a function that takes an Error ** argument
is suspicious. smbios_entry_add() does that, and then exit()s. It
also passes &error_fatal to qemu_opts_validate(). Both wrong, but
currently harmless, as its only caller passes &error_fatal. Messed up
in commit 1007a37e20. Clean it up.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20181017082702.5581-12-armbru@redhat.com>
