Taking the address of a field in a packed struct is a bad idea, because
it might not be actually aligned enough for that pointer type (and
thus cause a crash on dereference on some host architectures). Newer
versions of clang warn about this. Avoid the bug by not using the
"modify in place" byte swapping functions.
There are a few places where the in-place swap function is
used on something other than a packed struct field; we convert
those anyway, for consistency.
This patch was produced with the following spatch script:
@@
expression E;
@@
-be16_to_cpus(&E);
+E = be16_to_cpu(E);
@@
expression E;
@@
-be32_to_cpus(&E);
+E = be32_to_cpu(E);
@@
expression E;
@@
-be64_to_cpus(&E);
+E = be64_to_cpu(E);
@@
expression E;
@@
-cpu_to_be16s(&E);
+E = cpu_to_be16(E);
@@
expression E;
@@
-cpu_to_be32s(&E);
+E = cpu_to_be32(E);
@@
expression E;
@@
-cpu_to_be64s(&E);
+E = cpu_to_be64(E);
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: John Snow <jsnow@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Taking the address of a field in a packed struct is a bad idea, because
it might not be actually aligned enough for that pointer type (and
thus cause a crash on dereference on some host architectures). Newer
versions of clang warn about this. Avoid the bug by not using the
"modify in place" byte swapping functions.
There are a few places where the in-place swap function is
used on something other than a packed struct field; we convert
those anyway, for consistency.
This patch was produced with the following spatch script
(and hand-editing to fold a few resulting overlength lines):
@@
expression E;
@@
-be16_to_cpus(&E);
+E = be16_to_cpu(E);
@@
expression E;
@@
-be32_to_cpus(&E);
+E = be32_to_cpu(E);
@@
expression E;
@@
-be64_to_cpus(&E);
+E = be64_to_cpu(E);
@@
expression E;
@@
-cpu_to_be16s(&E);
+E = cpu_to_be16(E);
@@
expression E;
@@
-cpu_to_be32s(&E);
+E = cpu_to_be32(E);
@@
expression E;
@@
-cpu_to_be64s(&E);
+E = cpu_to_be64(E);
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: John Snow <jsnow@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Use %zu instead of %zd for unsigned numbers.
This fixes two error messages from the LSTM static code analyzer:
This argument should be of type 'ssize_t' but is of type 'unsigned long'
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
When using the vvfat driver with a directory that contains too many files,
QEMU currently crashes. This can be triggered like this for example:
mkdir /tmp/vvfattest
cd /tmp/vvfattest
for ((x=0;x<=513;x++)); do mkdir $x; done
qemu-system-x86_64 -drive \
file.driver=vvfat,file.dir=.,read-only=on,media=cdrom
Seems like read_directory() is changing the mapping->path variable. Make
sure we use the right pointer instead.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The divdeu instruction was added to ISA 2.06 (Power7).
Exclude this block from older cpus.
Fixes: 27ae5109a2 (softfloat: Specialize udiv_qrnnd for ppc64)
Reported-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* microbit: Add the UART to our nRF51 SoC model
* Add a virtual Xilinx Versal board "xlnx-versal-virt"
* hw/arm/virt: Set VIRT_COMPAT_3_0 compat
* MAINTAINERS: Remove bouncing email in ARM ACPI
* strongarm: mask off high[31:28] bits from dir and state registers
* target/arm: Conditionalize some asserts on aarch32 support
* hw/arm/xilinx_zynq: Use the ARRAY_SIZE macro
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20181102' into staging
target-arm queue:
* microbit: Add the UART to our nRF51 SoC model
* Add a virtual Xilinx Versal board "xlnx-versal-virt"
* hw/arm/virt: Set VIRT_COMPAT_3_0 compat
* MAINTAINERS: Remove bouncing email in ARM ACPI
* strongarm: mask off high[31:28] bits from dir and state registers
* target/arm: Conditionalize some asserts on aarch32 support
* hw/arm/xilinx_zynq: Use the ARRAY_SIZE macro
# gpg: Signature made Fri 02 Nov 2018 17:14:43 GMT
# gpg: using RSA key 3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20181102:
hw/arm: versal: Add a virtual Xilinx Versal board
hw/arm: versal: Add a model of Xilinx Versal SoC
target/arm: Conditionalize some asserts on aarch32 support
hw/arm/xilinx_zynq: Use the ARRAY_SIZE macro
strongarm: mask off high[31:28] bits from dir and state registers
MAINTAINERS: Remove bouncing email in ARM ACPI
tests/boot-serial-test: Add microbit board testcase
hw/arm/nrf51_soc: Connect UART to nRF51 SoC
hw/char: Implement nRF51 SoC UART
hw/arm/virt: Set VIRT_COMPAT_3_0 compat
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a virtual Xilinx Versal board.
This board is based on the Xilinx Versal SoC. The exact
details of what peripherals are attached to this board
will remain in control of QEMU. QEMU will generate an
FDT on the fly for Linux and other software to auto-discover
peripherals.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181102131913.1535-3-edgar.iglesias@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a model of Xilinx Versal SoC.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20181102131913.1535-2-edgar.iglesias@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When populating id registers from kvm, on a host that doesn't support
aarch32 mode at all, neither arm_div nor jazelle will be supported either.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20181102102025.3546-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The high[31:28] bits of 'direction' and 'state' registers of
SA-1100/SA-1110 device are reserved. Setting them may lead to
OOB 's->handler[]' array access issue. Mask off [31:28] bits to
avoid it.
Reported-by: Moguofang <moguofang@huawei.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 20181030114635.31232-1-ppandit@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Shannon Zhao's email at Huawei is bouncing: remove it.
X-Failed-Recipients: zhaoshenglong@huawei.com
** Address not found **
Your message wasn't delivered to zhaoshenglong@huawei.com because the address couldn't be found, or is unable to receive mail.
Note that the section still contains his personal email (see e59f13d76b).
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Shannon Zhao <shannon.zhaosl@gmail.com>
Message-id: 20181029195931.8747-1-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
New mini-kernel test for nRF51 SoC UART.
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Wire up nRF51 UART in the corresponding SoC.
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Not implemented: CTS/NCTS, PSEL*.
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We are missing the VIRT_COMPAT_3_0 definition and setting.
Let's add them.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20181024085602.16611-1-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This tag contains a few simple patches that I'd like to target for the
QEMU soft freeze. There's only one code change: a fix to our PMP
implementation that avoids an internal truncation while computing a
partial PMP read.
I also have two updates to the MAINTAINERS file: one to add Alistair as
a RISC-V maintainer, and one to add our newly created mailing list.
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Merge remote-tracking branch 'remotes/riscv/tags/riscv-for-master-3.1-sf1' into staging
RISC-V Patches for the 3.1 Soft Freeze, Part 2
This tag contains a few simple patches that I'd like to target for the
QEMU soft freeze. There's only one code change: a fix to our PMP
implementation that avoids an internal truncation while computing a
partial PMP read.
I also have two updates to the MAINTAINERS file: one to add Alistair as
a RISC-V maintainer, and one to add our newly created mailing list.
# gpg: Signature made Tue 30 Oct 2018 18:17:17 GMT
# gpg: using RSA key EF4CA1502CCBAB41
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>"
# gpg: aka "Palmer Dabbelt <palmer@sifive.com>"
# 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: 00CE 76D1 8349 60DF CE88 6DF8 EF4C A150 2CCB AB41
* remotes/riscv/tags/riscv-for-master-3.1-sf1:
Add qemu-riscv@nongnu.org as the RISC-V list
Add Alistair as a RISC-V Maintainer
target/riscv/pmp.c: pmpcfg_csr_read returns bogus value on RV64
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20181031a' into staging
Minor migration fixes 2018-10-31
# gpg: Signature made Wed 31 Oct 2018 16:55:40 GMT
# gpg: using RSA key 0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>"
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7
* remotes/dgilbert/tags/pull-migration-20181031a:
migration: avoid segmentfault when take a snapshot of a VM which being migrated
qapi: Fix COLOStatus and query-colo-status since version
COLO: Fix Colo doc secondeary should be secondary
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* support for --retry-path option for recovering from communication
path failures
* support for serial/device name in guest-get-fsinfo for linux/w32
* support for freezing individual mount points in guest-fsfreeze-*
* fixes for unicode paths on w32, not-present vcpus in guest-get-vcpus,
buffer overflow in guest-get-fsinfo for w32, and other minor fixes
v3:
* remove redundant check for --static in configure
* correct authorship on "qga-win: add debugging information"
v2:
* set libudev=off in configure for static builds
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=drMH
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Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2018-10-30-v3-tag' into staging
qemu-ga patch queue for soft-freeze
* support for --retry-path option for recovering from communication
path failures
* support for serial/device name in guest-get-fsinfo for linux/w32
* support for freezing individual mount points in guest-fsfreeze-*
* fixes for unicode paths on w32, not-present vcpus in guest-get-vcpus,
buffer overflow in guest-get-fsinfo for w32, and other minor fixes
v3:
* remove redundant check for --static in configure
* correct authorship on "qga-win: add debugging information"
v2:
* set libudev=off in configure for static builds
# gpg: Signature made Wed 31 Oct 2018 14:13:58 GMT
# gpg: using RSA key 3353C9CEF108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>"
# gpg: aka "Michael Roth <mdroth@utexas.edu>"
# gpg: aka "Michael Roth <mdroth@linux.vnet.ibm.com>"
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D 3FA0 3353 C9CE F108 B584
* remotes/mdroth/tags/qga-pull-2018-10-30-v3-tag: (24 commits)
qga-win: changing --retry-path option behavior
qga-win: report specific error when failing to open channel
qga-win: install service with --retry-path set by default
qga: add --retry-path option for re-initializing channel on failure
qga: move w32 service handling out of run_agent()
qga: hang GAConfig/socket_activation off of GAState global
qga: group agent init/cleanup init separate routines
qga: fix an off-by-one issue
qga-win: demystify namespace stripping
qga-win: return disk device in guest-get-fsinfo
qga-win: handle multi-disk volumes
qga-win: refactor disk info
qga-win: report disk serial number
qga-win: refactor disk properties (bus)
qga-win: add debugging information
build: rename CONFIG_QGA_NTDDDISK to CONFIG_QGA_NTDDSCSI
qga-win: fsinfo: pci-info: allow partial info
qga-win: prevent crash when executing fsinfo command
qga: linux: return disk device in guest-get-fsinfo
qga: linux: report disk serial number
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* MSR-based feature support for
MSR_IA32_ARCH_CAPABILITIES bits (Robert Hoo)
* Cascadelake-Server CPU model (Tao Xu)
* Add PKU on Skylake-Server CPU model (Tao Xu)
* Correct cpu_x86_cpuid(0xd) (Sebastian Andrzej Siewior)
* Remove dead code (Peter Maydell)
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-next-pull-request' into staging
x86 queue, 2018-10-30
* MSR-based feature support for
MSR_IA32_ARCH_CAPABILITIES bits (Robert Hoo)
* Cascadelake-Server CPU model (Tao Xu)
* Add PKU on Skylake-Server CPU model (Tao Xu)
* Correct cpu_x86_cpuid(0xd) (Sebastian Andrzej Siewior)
* Remove dead code (Peter Maydell)
# gpg: Signature made Wed 31 Oct 2018 14:05:25 GMT
# gpg: using RSA key 2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/x86-next-pull-request:
i386: Add PKU on Skylake-Server CPU model
i386: Add new model of Cascadelake-Server
x86: define a new MSR based feature word -- FEATURE_WORDS_ARCH_CAPABILITIES
x86: Data structure changes to support MSR based features
kvm: Add support to KVM_GET_MSR_FEATURE_INDEX_LIST and KVM_GET_MSRS system ioctl
target/i386: Remove #ifdeffed-out icebp debugging hack
i386: correct cpu_x86_cpuid(0xd)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/stefanberger/tags/pull-tpm-2018-10-29-2' into staging
Merge tpm 2018/10/29 v2
# gpg: Signature made Tue 30 Oct 2018 21:40:24 GMT
# gpg: using RSA key 75AD65802A0B4211
# gpg: Good signature from "Stefan Berger <stefanb@linux.vnet.ibm.com>"
# 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: B818 B9CA DF90 89C2 D5CE C66B 75AD 6580 2A0B 4211
* remotes/stefanberger/tags/pull-tpm-2018-10-29-2:
tpm: Zero-init structure to avoid uninitialized variables in valgrind log
MAINTAINERS: Change my email address to the new domain
docs: tpm: Mention implemented TPM CRB interface emulation and specs
tests/tpm: Display if swtpm is not found or --tpm2 not supported
tests/tpm: fix tpm_util_swtpm_has_tpm2()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Coldfire defines an "Unsupported instruction" exception if execution
of a valid instruction is attempted but the required hardware is not
present in the processor.
We use it with instructions that are in fact undefined or illegal,
and the exception expected in this case by the kernel is the
illegal exception, so this patch fixes that.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20181030165554.5761-1-laurent@vivier.eu>
Some time ago, I proposed to use an (eval) in .dir-locals.el to set
the mode for all json files and Makefile. Unfortunately, this isn't
safe, and emacs will prompt the user, which isn't very friendly.
Fortunately, editorconfig provides a special config key which does
allow to set the emacs mode. Add a few missing entries and set the
emacs mode.
Update top comment to provide a short summary about the file and the
IDE plugins while at it.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Test order:
Creating server websocket chardev
Creating usual tcp chardev client
Sending handshake message from client
Receiving handshake reply
Sending ping frame with "hello" payload
Receiving pong reply
Sending binary data "world"
Checking the received data on server side
Checking of closing handshake
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Message-Id: <20181018223501.21683-4-jusual@mail.ru>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
New option "websocket" added to allow using WebSocket protocol for
chardev socket backend.
Example:
-chardev socket,websocket,server,id=...
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Message-Id: <20181018223501.21683-3-jusual@mail.ru>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Upcoming websocket support requires additional parameters in function
headers that are already overloaded. This patch replaces the bunch of
parameters with a single structure pointer.
Signed-off-by: Julia Suvorova <jusual@mail.ru>
Message-Id: <20181018223501.21683-2-jusual@mail.ru>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
A chardev socket created with the 'fd=' argument is not going to
handle reconnection properly by recycling the same fd (or not in a
supported way). Let's forbid this case.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
qemu_chr_parse_socket() fills all ChardevSocket fields, but that
doesn't reflect correctly the arguments given with the options / on
the command line. "reconnect" takes a number as argument, and the
default value is 0, which doesn't help to identify the missing
option. The other arguments have default values that are less
problematic, leave them set by default for now.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Missed in f69a8bde29.
Thanks Valgrind:
==955== 217 bytes in 1 blocks are definitely lost in loss record 275 of 321
==955== at 0x483A965: realloc (vg_replace_malloc.c:785)
==955== by 0x50B6839: __vasprintf_chk (in /usr/lib64/libc-2.28.so)
==955== by 0x49AA05C: g_vasprintf (in /usr/lib64/libglib-2.0.so.0.5800.1)
==955== by 0x4983440: g_strdup_vprintf (in /usr/lib64/libglib-2.0.so.0.5800.1)
==955== by 0x126048: qio_channel_websock_handshake_send_res (channel-websock.c:162)
==955== by 0x1266E6: qio_channel_websock_handshake_send_res_ok (channel-websock.c:362)
==955== by 0x126D3E: qio_channel_websock_handshake_process (channel-websock.c:468)
==955== by 0x126EF2: qio_channel_websock_handshake_read (channel-websock.c:511)
==955== by 0x12715B: qio_channel_websock_handshake_io (channel-websock.c:571)
==955== by 0x125027: qio_channel_fd_source_dispatch (channel-watch.c:84)
==955== by 0x496326C: g_main_context_dispatch (in /usr/lib64/libglib-2.0.so.0.5800.1)
==955== by 0x169EC3: glib_pollfds_poll (main-loop.c:215)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
While it would be possible to concatenate input files with make,
passing the original input files to decodetree.py allows us to
generate error messages which allows compilation environments
(read: emacs) to next-error to the correct input file.
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This allows trans_* expanders to be shared between decoders
for 32 and 16-bit insns, by not tying the expander to the
size of the insn that produced it.
This change requires adjusting the two existing users to match.
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Allow argument sets to be shared between two decoders by avoiding
a re-declaration error. Make sure that anonymous argument sets
and anonymous formats have unique names.
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Currently whenever the qemu-ga's service doesn't find the virtio-serial
the run_agent() loops in a QGA_RETRY_INTERVAL (default 5 seconds)
intervals and try to restart the qemu-ga which causes a synchronous loop.
Changed to wait and listen for the serial events by registering for
notifications a proper serial event handler that deals with events:
DBT_DEVICEARRIVAL indicates that the device has been inserted and
is available
DBT_DEVICEREMOVECOMPLETE indicates that the devive has been removed
Which allow us to determine when the channel path is available for the
qemu-ga to restart.
Signed-off-by: Bishara AbuHattoum <bishara@daynix.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Useful in general, but especially now that errors might occur more
frequently with --retry-path set.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
It's nicer from a management perspective that the agent can survive
hotplug/unplug of the channel device, or be started prior to the
installation of the channel device's driver without and still be able
to resume normal function afterward. On linux there are alternatives
like systemd to support this, but on w32 --retry-path is the only
option so it makes sense to set it by default when installed as a
w32 service.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This adds an option to instruct the agent to periodically attempt
re-opening the communication channel after a channel error has
occurred. The main use-case for this is providing an OS-independent
way of allowing the agent to survive situations like hotplug/unplug of
the communication channel, or initial guest set up where the agent may
be installed/started prior to the installation of the channel device's
driver.
There are nicer ways of implementing this functionality via things
like systemd services, but this option is useful for platforms like
*BSD/w32.
Currently a channel error will result in the GSource for that channel
being removed from the GMainLoop, but the main loop continuing to run.
That behavior results in a dead loop when --retry-path isn't set, and
prevents us from knowing when to attempt re-opening the channel when
it is set, so we also force the loop to exit as part of this patch.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Eventually we want a w32 service to be able to restart the qga main
loop from within service_main(). To allow for this we move service
handling out of run_agent() such that service_main() calls
run_agent() instead of the reverse.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Bishara AbuHattoum <bishara@daynix.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
For w32 services we rely on the global GAState to access resources
associated with the agent within service_main(). Currently this is
sufficient for starting the agent since we open the channel once prior
to calling service_main(), and simply start the GMainLoop to start the
agent from within service_main().
Eventually we want to be able to also [re-]open the communication
channel from within service_main(), which requires access to
config/socket_activation variables, so we hang them off GAState in
preparation for that.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
*dont move GAConfig struct, just the typedef
*fix build bisect for w32
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This patch better separates the init/cleanup routines out into
separate functions to make the start-up procedure a bit easier to
follow. This will be useful when we eventually break out the actual
start/stop of the agent's main loop into separates routines that
can be called multiple times after the init phase.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
It was not obvious what exactly the cryptic string copying does to the
GUID. This change makes the intent clearer.
Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
