error: Link qemu-img, qemu-nbd, qemu-io with qemu-error.o
The location tracking interface is used by code shared with qemi-img,
qemu-nbd and qemu-io, so it needs to be available there. Commit 827b0813 provides it in a rather hamfisted way: it adds a dummy
implementation to qemu-tool.c.
It's cleaner to provide the real thing, and put a few more dummy
monitor functions into qemu-tool.c.
linux-user: Use RLIMIT_STACK for default stack size.
The current default stack limit of 512kB is far too small; a fair
number of gcc testsuite failures (for all guests) are directly
attributable to this. Using the -s option in every invocation of
the emulator is annoying to say the least.
A reasonable compromise seems to be to honor the system rlimit.
At least on two Linux distributions, this is set to 8MB and 10MB
respectively. If the system does not limit the stack, then we're
no worse off than before.
At the same time, rename the variable from x86_stack_size and
change the ultimate fallback size from 512kB to 8MB.
Paolo Bonzini [Fri, 19 Mar 2010 10:30:35 +0000 (11:30 +0100)]
fix race between timer firing vs. alarm_timer->pending = 0
The period for Win32 timers is very short and always the same
independent of dynticks, so it's possible that the timer fires
before qemu_run_all_timers has reset alarm_timer->pending to zero.
Reset alarm_timer->pending before rearming.
Adam Litke [Thu, 25 Mar 2010 13:58:17 +0000 (08:58 -0500)]
balloon: Fix overflow when reporting actual memory size
Beginning with its introduction, the virtio balloon has had an overflow error
that causes 'info balloon' to misreport the actual memory size when the balloon
itself becomes larger than 4G. Use a cast when converting dev->actual from
pages to kB to prevent overflows.
Before:
(qemu) info balloon
balloon: actual=5120
(qemu) balloon 1025
(qemu) info balloon
balloon: actual=1025
(qemu) balloon 1024
(qemu) info balloon
balloon: actual=5120
After:
(qemu) info balloon
balloon: actual=5120
(qemu) balloon 1025
(qemu) info balloon
balloon: actual=1025
(qemu) balloon 1024
(qemu) info balloon
balloon: actual=1024
Kevin Wolf [Fri, 12 Mar 2010 12:52:31 +0000 (13:52 +0100)]
raw-posix: Better error return values for hdev_create
Now that we output an error message according to the returned error code in
qemu-img, let's return the real error codes. "Input/output error" for
everything isn't helpful.
Alexander Graf [Thu, 25 Mar 2010 13:59:02 +0000 (14:59 +0100)]
target-s390: Don't compile in virtio-pci
As soon as virtio-pci.c gets compiled and used on S390 the internal qdev magic
gets confused and tries to give us PCI devices instead of S390 virtio devices.
Since we don't have PCI on S390, we can safely not compile virtio-pci at all.
In order to do this I added a new config option "CONFIG_VIRTIO_PCI" that I
enabled for every platform except S390. Thanks to this the change should be a
complete nop for every other platform.
Dmitry Ilyevsky [Fri, 26 Mar 2010 00:25:36 +0000 (03:25 +0300)]
target-ppc: generic PowerPC TBL
Time base SPRs TBL/TBU should be accessible in user/priv modes for reading
as specified in POWER ISA documentation. Therefore SPRs permissions were
changed in gen_tbl function.
tcg: Disambiguate qemu_ld32u with 32-bit and 64-bit outputs.
Some targets (e.g. Alpha and MIPS64) need to keep 32-bit operands
sign-extended in 64-bit registers (regardless of the "real" sign
of the operand). For that, we need to be able to distinguish
between a 32-bit load with a 32-bit result and a 32-bit load with
a given extension to a 64-bit result. This distinction already
exists for the ld* loads, but not the qemu_ld* loads.
Reserve qemu_ld32u for 64-bit outputs and introduce qemu_ld32 for
32-bit outputs. Adjust all code generators to match.
CC qemu-error.o
cc1: warnings being treated as errors
/home/edgar/src/c/qemu/git/qemu/qemu-error.c: In function 'error_print_loc':
/home/edgar/src/c/qemu/git/qemu/qemu-error.c:191: error: format not a string literal and no format arguments
make: *** [qemu-error.o] Error 1
Blue Swirl [Sat, 20 Mar 2010 08:26:27 +0000 (08:26 +0000)]
Fix mingw32 build
mkdir() only takes path argument on mingw32:
CC i386-softmmu/vl.o
/src/qemu/vl.c: In function 'qmp_add_default':
/src/qemu/vl.c:3763: error: too many arguments to function 'mkdir'
/src/qemu/vl.c:3769: error: too many arguments to function 'mkdir'
Blue Swirl [Sat, 20 Mar 2010 08:11:01 +0000 (08:11 +0000)]
Fix build
CC curses.o
cc1: warnings being treated as errors
/src/qemu/curses.c: In function 'curses_display_init':
/src/qemu/curses.c:341: error: initialization from incompatible pointer type
Anthony Liguori [Wed, 17 Mar 2010 23:00:45 +0000 (18:00 -0500)]
tap: invoke downscript when we exit abnormally
Right now, downscript is not invoked reliably. If you execute 'quit' from the
monitor, it won't be invoked.
This fixes that by converting tap to use an exit_notifier to execute the
downscript. In this case, allowing an exit notifier to include state is
critically important for the conversion.
Anthony Liguori [Wed, 17 Mar 2010 22:59:26 +0000 (17:59 -0500)]
Convert atexit users to exit_notifier
All of these users have global state so we really don't see a benefit from
exit_notifier. However, using exit_notifier means that there's one less
justification for having global state in the first place.
Anthony Liguori [Wed, 10 Mar 2010 15:42:58 +0000 (09:42 -0600)]
sdl: use mouse mode notifier
Today we poll the mouse mode whenever there is a mouse movement. There is a
subtle usability problem with this though.
If we're in relative mode and grab is enabled, when we change to absolute mode,
we break grab. This gives a user a seamless transition when the new pointer
is enabled.
But because we poll for mouse change, this grab break won't occur until the user
attempts to move the mouse. By using notifiers, the grab break happens as soon
as possible.
Anthony Liguori [Wed, 10 Mar 2010 15:38:29 +0000 (09:38 -0600)]
input: make vnc use mouse mode notifiers
When we switch to absolute mode, we send out a notification (if the client
supports it). Today, we only send this notification when the client sends us
a mouse event and we're in the wrong mode.
Anthony Liguori [Tue, 9 Mar 2010 19:25:00 +0000 (13:25 -0600)]
Add notifier for mouse mode changes
Right now, DisplayState clients rely on polling the mouse mode to determine
when the device is changed to an absolute device. Use a notification list to
add an explicit notification.
Anthony Liguori [Tue, 9 Mar 2010 20:26:40 +0000 (14:26 -0600)]
Add kbd_mouse_has_absolute()
kbd_mouse_is_absolute tells us whether the current mouse handler is an absolute
device. kbd_mouse_has_absolute tells us whether we have any device that is
capable of absolute input.
This lets us tell a user that they have configured an absolute device but that
the guest is not currently using it.
Anthony Liguori [Wed, 10 Mar 2010 02:52:22 +0000 (20:52 -0600)]
Rewrite mouse handlers to use QTAILQ and to have an activation function
And convert usb-hid to use it (to avoid regression with bisection)
Right now, when we do info mice and we've added a usb tablet, we don't see it
until the guest starts using the tablet. We implement this behavior in order
to provide a means to delay registration of a mouse handler since we treat
the last registered handler as the current handler.
This is a usability problem though as we would like to give the user feedback
that they've either 1) not added an absolute device 2) there is an absolute
device but the guest isn't using it 3) we have an absolute device and it's
active.
By using QTAILQ and having an explicit activation function that moves the
handler to the front of the queue, we can implement the same semantics as
before with respect to automatically switching to usb tablet while providing
the user with a whole lot more information.
This breaks build (gcc 4.3.2):
CC usb-linux.o
cc1: warnings being treated as errors
/src/qemu/usb-linux.c: In function 'usb_linux_update_endp_table':
/src/qemu/usb-linux.c:759: error: 'type' may be used uninitialized in
this function
Blue Swirl [Thu, 18 Mar 2010 20:48:19 +0000 (20:48 +0000)]
Fix OpenBSD linker warning
qemu-option.o(.text+0x20f8): In function `qemu_opts_from_qdict_1':
/src/qemu/qemu-option.c:813: warning: strcpy() is almost always misused, please use strlcpy()
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