The code will remap all PAMs, even if just one is updated, resulting
in reduced performance. Wrap in a transaction to detect that those
other PAMs have not changed.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
This prevents spurious unmapping and remapping of the vga windows,
which reduces performance.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
Add a new memory space for PCI instead of using system memory.
This also fixes a bug where VGA region vga.chain4 is
accidentally mapped to 0xa0000 instead of 0x1ff000a0000.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Prepares for uint32 replacement.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Prepares for uint16 replacement.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Allow overriding the location of Samba's smbd.
Pretty much every OS I look at has some means of
changing this path (patching) so lets just make
it easier for OS developers creating packages
and/or end users to override the location.
Signed-off-by: Brad Smith <brad@comstyle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Most changes were made using these commands:
git grep -la '__attribute__((packed))'|xargs perl -pi -e 's/__attribute__\(\(packed\)\)/QEMU_PACKED/'
git grep -la '__attribute__ ((packed))'|xargs perl -pi -e 's/__attribute__ \(\(packed\)\)/QEMU_PACKED/'
git grep -la '__attribute__((__packed__))'|xargs perl -pi -e 's/__attribute__\(\(__packed__\)\)/QEMU_PACKED/'
git grep -la '__attribute__ ((__packed__))'|xargs perl -pi -e 's/__attribute__ \(\(__packed__\)\)/QEMU_PACKED/'
git grep -la '__attribute((packed))'|xargs perl -pi -e 's/__attribute\(\(packed\)\)/QEMU_PACKED/'
Whitespace in linux-user/syscall_defs.h was fixed manually
to avoid warnings from scripts/checkpatch.pl.
Manual changes were also applied to hw/pc.c.
I did not fix indentation with tabs in block/vvfat.c.
The patch will show 4 errors with scripts/checkpatch.pl.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
A packed struct needs different gcc attributes for compilations
with MinGW compilers because glib-2.0 adds compiler flag
-mms-bitfields which modifies the packing algorithm.
Attribute gcc_struct reverses the negative effects of -mms-bitfields.
QEMU_PACKED sets this attribute and must be used for any packed
struct which is affected by -mms-bitfields.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Fix install(1) usage to be compatible with OpenBSD's install(1).
When creating a directory via the -d flag the -p flag cannot be
used at the same time. Also in the context of installing QEMU it
doesn't make sense to use the -p flag anyway so use the [default]
-c flag instead.
Signed-off-by: Brad Smith <brad@comstyle.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This has been discussed before in the past. The special casing really makes no
sense anymore. This seems like a good change to make for 1.0.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Enabling the I/O thread by default seems like an important part of declaring
1.0. Besides allowing true SMP support with KVM, the I/O thread means that the
TCG VCPU doesn't have to multiplex itself with the I/O dispatch routines which
currently requires a (racey) signal based alarm system.
I know there have been concerns about performance. I think so far the ones that
have come up (virtio-net) are most likely due to secondary reasons like
decreased batching.
I think we ought to force enabling I/O thread early in 1.0 development and
commit to resolving any lingering issues.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The second if statement should consider the original al register value,
and not the new one.
Signed-off-by: Boris Figovsky <boris.figovksy@ravellosystems.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
cppcheck reports this error:
qemu/hw/sh_intc.c:390: error: Possible null pointer dereference:
s - otherwise it is redundant to check if s is null at line 385
If s were NULL, the printf() statement would crash.
Setting braces fixes this bug.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Reviewed-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Avoid duplicate object files during the link. There are legitimate
cases where a link command-line would include duplicate object files
because two independent subsystems both depend on common infrastructure.
Use GNU make's $(sort) function to remove duplicate object files from
the link command-line.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch changes qemu_set_fd_handler to be implemented in terms of
g_io_add_watch(). The semantics are a bit different so some glue is required.
qemu_set_fd_handler2 is much harder to convert because of its use of polling.
The glib main loop has the major of advantage of having a proven thread safe
architecture. By using the glib main loop instead of our own, it will allow us
to eventually introduce multiple I/O threads.
I'm pretty sure that this will work on Win32, but I would appreciate some help
testing. I think the semantics of g_io_channel_unix_new() are really just tied
to the notion of a "unix fd" and not necessarily unix itself.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This allows GSources to be used to register callback events in QEMU. This is
useful as it allows us to take greater advantage of glib and also because it
allows us to write code that is more easily testable outside of QEMU since we
can make use of glib's main loop in unit tests.
All new code should use glib's callback mechanisms for registering fd events
which are very well documented at:
http://developer.gnome.org/glib/stable/glib-The-Main-Event-Loop.html
And:
http://developer.gnome.org/gio/stable/
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Move the declaration and initialisation of some variables in
tcg_out_qemu_ld and tcg_out_qemu_st inside CONFIG_SOFTMMU, to
avoid the "variable set but not used" warning of gcc 4.6.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: malc <av1474@comtv.ru>
The simpletrace.process() function invokes analyzer methods with the
wrong number of arguments if a timestamp should be included. This patch
fixes the issue so that trace analysis scripts can make use of
timestamps.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Given that all events with programmatically-controlled state are disabled by
default, we can delete the "disable" property from all events.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Uses the generic interface provided in "trace/control.h" in order to provide
a programmatic interface as well as command line and monitor controls.
Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Note that this refers to the backend-specific state (whether the output must be
generated), not the event "disabled" property (which always uses the "nop"
backend).
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Any event with the keyword/property "disable" generates an empty trace event
using the "nop" backend, regardless of the current backend.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
The "-trace events" argument can be used to provide a file with a list of trace
event names that will be enabled prior to starting execution, thus providing
early tracing.
This saves the user from manually toggling event states through the monitor
interface or whichever backend-specific interface.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
The current interface is generic for this small set of operations, and thus
other backends can easily modify the "trace/control.c" file to add their own
implementation.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Generalize the 'st_print_trace_events' and 'st_change_trace_event_state' into
backend-specific 'trace_print_events' and 'trace_event_set_state' (respectively)
in the "trace/control.h" file.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
This adds/modifies the following functions:
* get_name: Get _only_ the event name
* has_property: Return whether an event has a property (keyword before the event
name)
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
A default implementation for backend-specific routines is provided in
"trace/default.c", which backends can override by setting "trace_default=no" in
"configure".
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Provides a more hierarchical view of the variable domain.
Also adds the CONFIG_TRACE_* variables for all backends.
[Stefan added missing 'test' in stap if statement]
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Helper programs like qemu-ga use tracing primitives, but qemu-timer-common.o
(also used by simpletrace.o) is not necessarily included in the linkage line.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Using '$^' to establish the files to link with will remove any repeated entries
in the list of dependencies.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Avi Kivity