Add a couple of traces around the kvm_set_ioeventfd* calls.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20190212134758.10514-4-dgilbert@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Always make error messages start with 'Error:' as a fallback
to make sure that anything parsing them can tell it failed.
Note: Some places don't use hmp_handle_error
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20190212134758.10514-3-dgilbert@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20181016112232.23241-1-dgilbert@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
We have now managed to eradicate all the places in the codebase
that triggered clang's -Waddress-of-packed-member warning. Remove
the compiler flag that exempted it from our usual -Werror policy.
This will prevent any new problematic code being added in future.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190208132112.31493-1-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The NetBSD support in Intel HAXM has beem merged upstream and is functional.
Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Message-Id: <20190207233704.29978-1-n54@gmx.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This looks like a leftover that was never implemented.
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190207193605.25676-2-crosa@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The option is only a dummy since a long time. We've finally deprecated
it in QEMU v3.0, so it's time to remove it now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <1549545296-18903-3-git-send-email-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The two sections have accidentally been added again during the
merge of Paolo's and Gerd's trees.
Fixes: 3e29da9fd8
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <1549545296-18903-2-git-send-email-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The lock usage was described with its introduction in commit
9005b2a758. It was necessary because PTY
write() shares more state than GIOChannel with other
operations.
This made char-pty a bit different from other chardev, that only lock
around the write operation. This was apparent in commit
7b3621f47a, which introduced an idle
source to avoid the lock.
By removing the PTY chardev state sharing on write() with previous
patch, we can remove the lock and the idle source.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190206174328.9736-7-marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
This doesn't help much compared to the 1 second poll PTY
timer. I can't think of a use case where this would help.
However, we can simplify the code around chr_write(): the write lock
is no longer needed for other char-pty callbacks (see following
patch).
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190206174328.9736-6-marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
terminal3270 uses the front-end side of the chardev. It shouldn't
create sources from backend side context (with backend
functions).
send_timing_mark_cb calls qemu_chr_fe_write_all() which should be
thread safe.
This partially reverts changes from commit
2c716ba150.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190206174328.9736-4-marcandre.lureau@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Instead of handling mux chardev in a special way in
qemu_chr_fe_set_handlers(), we may use the chr_update_read_handler
class callback instead.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190206174328.9736-2-marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
The correct name is Wacom.
Fix the typo which is present since 378af96155.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190213123446.1768-1-philmd@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This will be needed by vhost-user-test, when each test switches to
its own GMainLoop and GMainContext. Otherwise, for a reconnecting
socket the initial connection will happen on the default GMainContext,
and no one will be listening on it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190202110834.24880-1-pbonzini@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Commit caa1ee43 "vhost-user-blk: add discard/write zeroes features
support" added fields to struct virtio_blk_config. This changes
the size of the config space and breaks migration from QEMU 3.1
and older:
qemu-system-ppc64: get_pci_config_device: Bad config data: i=0x10 read: 41 device: 1 cmask: ff wmask: 80 w1cmask:0
qemu-system-ppc64: Failed to load PCIDevice:config
qemu-system-ppc64: Failed to load virtio-blk:virtio
qemu-system-ppc64: error while loading state for instance 0x0 of device 'pci@800000020000000:01.0/virtio-blk'
qemu-system-ppc64: load of migration failed: Invalid argument
Since virtio-blk doesn't support the "discard" and "write zeroes"
features, it shouldn't even expose the associated fields in the
config space actually. Just include all fields up to num_queues to
match QEMU 3.1 and older.
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1550022537-27565-1-git-send-email-changpeng.liu@intel.com
Message-Id: <1550022537-27565-1-git-send-email-changpeng.liu@intel.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
QEMU wraps the socket functions in os-win32.h, but in commit
a9d8b3ec43, the header inclusion was dropped,
breaking libslirp on Windows.
Wrap the missing functions.
Rename the wrapped function with "slirp_" prefix and "_wrap" suffix,
for consistency and to avoid a clash with existing function (such as
"slirp_socket").
Fixes: a9d8b3ec ("slirp: replace remaining qemu headers dependency")
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190212160953.29051-3-marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Tested-by: Howard Spoelstra
QEMU wraps the socket functions in os-win32.h, but in commit
a9d8b3ec43, the header inclusion was dropped,
breaking libslirp on Windows.
There are already a few socket functions that are wrapped in libslirp,
with "slirp_" prefix, but many of them are missing, and we are going
to wrap the missing functions in a second patch.
Using "slirp_" prefix avoids the conflict with socket function #define
wrappers in QEMU os-win32.h, but they are quite intrusive. In the end,
the functions should behave the same as original one, but with errno
being set. To avoid the churn, and potential confusion, remove the
"slirp_" prefix. A series of #undef is necessary until libslirp is
made standalone to prevent the #define conflict with QEMU.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190212160953.29051-2-marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
HP-UX 10.20 uses busmaster writes to the CPU EIR to signal
interrupts from the SCSI constroller. (Similar to what is known
as MSI on x86)
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20190211192039.5457-1-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
It looks like the operands where exchanged. HP bootrom tests the
following sequence:
0x00000000f0004064: ldil L%-66666800,r7
0x00000000f0004068: addi 19f,r7,r7
0x00000000f000406c: addi -1,r0,rp
0x00000000f0004070: addi f,r0,r4
0x00000000f0004074: addi 1,r4,r5
0x00000000f0004078: dcor rp,r6
0x00000000f000407c: cmpb,<>,n r6,r7,0xf000411
This returned 0x66666661 instead of the expected 0x9999999f in QEMU.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20190211181907.2219-6-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These conditions include the signed overflow bit. See page 5-3
of the Parisc 1.1 Architecture Reference Manual for details.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
[rth: More changes for c == 3, to compute (N^V)|Z properly.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We will be fixing do_cond vs signed overflow, which requires
that do_log_cond not rely on do_cond.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When QEMU is compiled with -O0, these functions are inlined
which will cause a wrong restart address generated for the TB.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20190211181907.2219-2-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Now that the implementation is entirely within the generated
decode function, eliminate the wrapper.
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
With decodetree.py, the specializations would conflict so we
must have a single entry point for all variants of OR.
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Convert the BREAK instruction to start.
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Instead of returning DisasJumpType, immediately store it.
Return true in preparation for conversion to the decodetree script.
Tested-by: Helge Deller <deller@gmx.de>
Tested-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
valgrind on the test-char.c code reports that 'struct termios' contains
uninitialized memory.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190211182442.8542-17-berrange@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
The current socket chardev tests try to exercise the chardev socket
driver in both server and client mode at the same time. The chardev API
is not very well designed to handle both ends of the connection being in
the same process so this approach makes the test case quite unpleasant
to deal with.
This splits the tests into distinct cases, one to test server socket
chardevs and one to test client socket chardevs. In each case the peer
is run in a background thread using the simpler QIOChannelSocket APIs.
The main test case code can now be written in a way that mirrors the
typical usage from within QEMU.
In doing this recfactoring it is possible to greatly expand the test
coverage for the socket chardevs to test all combinations except for a
server operating in blocking wait mode.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190211182442.8542-16-berrange@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
When the 'reconnect' option is given for a client connection, the
qmp_chardev_open_socket_client method will run an asynchronous
connection attempt. The QIOChannel socket executes this is a single use
background thread, so the connection will succeed immediately (assuming
the server is listening). The chardev, however, won't get the result
from this background thread until the main loop starts running and
processes idle callbacks.
Thus when tcp_chr_wait_connected is run s->ioc will be NULL, but the
state will be TCP_CHARDEV_STATE_CONNECTING, and there may already
be an established connection that will be associated with the chardev
by the pending idle callback. tcp_chr_wait_connected doesn't check the
state, only s->ioc, so attempts to establish another connection
synchronously.
If the server allows multiple connections this is unhelpful but not a
fatal problem as the duplicate connection will get ignored by the
tcp_chr_new_client method when it sees the state is already connected.
If the server only supports a single connection, however, the
tcp_chr_wait_connected method will hang forever because the server will
not accept its synchronous connection attempt until the first connection
is closed.
To deal with this tcp_chr_wait_connected needs to synchronize with the
completion of the background connection task. To do this it needs to
create the QIOTask directly and use the qio_task_wait_thread method.
This will cancel the pending idle callback and directly dispatch the
task completion callback, allowing the connection to be associated
with the chardev. If the background connection failed, it can still
attempt a new synchronous connection.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190211182442.8542-15-berrange@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
In the previous commit
commit 1dc8a6695c
Author: Marc-André Lureau <marcandre.lureau@redhat.com>
Date: Tue Aug 16 12:33:32 2016 +0400
char: fix waiting for TLS and telnet connection
the tcp_chr_wait_connected() method was changed to check for a non-NULL
's->ioc' as a sign that there is already a connection present, as
opposed to checking the "connected" flag to supposedly fix handling of
TLS/telnet connections.
The original code would repeatedly call tcp_chr_wait_connected creating
many connections as 'connected' would never become true. The changed
code would still repeatedly call tcp_chr_wait_connected busy waiting
because s->ioc is set but the chardev will never see CHR_EVENT_OPENED.
IOW, the code is still broken with TLS/telnet, but in a different way.
Checking for a non-NULL 's->ioc' does not mean that a CHR_EVENT_OPENED
will be ready for a TLS/telnet connection. These protocols (and the
websocket protocol) all require the main loop to be running in order
to complete the protocol handshake before emitting CHR_EVENT_OPENED.
The tcp_chr_wait_connected() method is only used during early startup
before a main loop is running, so TLS/telnet/websock connections can
never complete initialization.
Making this work would require changing tcp_chr_wait_connected to run
a main loop. This is quite complex since we must not allow GSource's
that other parts of QEMU have registered to run yet. The current callers
of tcp_chr_wait_connected do not require use of the TLS/telnet/websocket
protocols, so the simplest option is to just forbid this combination
completely for now.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190211182442.8542-14-berrange@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
If establishing a client connection fails, the tcp_chr_wait_connected
method should sleep for the reconnect timeout and then retry the
attempt. This ensures the callers don't immediately abort with an
error when the initial connection fails.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20190211182442.8542-13-berrange@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Dr. David Alan Gilbert
Peter Maydell
Kamil Rytarowski
Cleber Rosa
Thomas Huth
Eric Blake
Marc-André Lureau
Philippe Mathieu-Daudé
Paolo Bonzini
Changpeng Liu
Sven Schnelle
Richard Henderson
Daniel P. Berrangé