Stefan Hajnoczi [Tue, 4 Dec 2012 15:12:18 +0000 (16:12 +0100)]
tests: use aio_poll() instead of aio_flush() in test-aio.c
There has been confusion between various aio wait and flush functions.
It's time to get rid of qemu_aio_flush() but in the aio test cases we
really do want this low-level functionality.
Therefore declare a local wait_for_aio() helper for the test cases.
Drop the aio_flush() test case.
Anthony Liguori [Mon, 10 Dec 2012 14:35:15 +0000 (08:35 -0600)]
Merge remote-tracking branch 'afaerber/qom-cpu' into staging
* afaerber/qom-cpu:
target-i386: Postpone cpuid_level update to realize time
target-i386: Use define for cpuid vendor string size
target-i386: Separate feature string parsing from CPU model lookup
target-i386/cpu.c: Coding style fixes
qdev: qdev_create(): use error_report() instead of hw_error()
sysemu.h: Include qemu-types.h instead of qemu-common.h
Create qemu-types.h for struct typedefs
qlist.h: Do not include qemu-common.h
qga/channel-posix.c: Include headers it needs
qapi/qmp-registry.c: Include headers it needs
ui/vnc-palette.c: Include headers it needs
user: Rename qemu-types.h to qemu-user-types.h
user: Move *-user/qemu-types.h to main directory
Anthony Liguori [Mon, 10 Dec 2012 14:33:11 +0000 (08:33 -0600)]
Merge remote-tracking branch 'kraxel/acpi.1' into staging
* kraxel/acpi.1:
acpi: drop debug port
q35: update lpc pci config space according to configured devices
apci: switch piix4 pci hotplug to memory api
acpi: remove acpi_gpe_blk
apci: switch piix4 gpe to memory api
acpi: fix piix4 smbus mapping
acpi: switch smbus to memory api
acpi: cleanup ich9 memory region
apci: switch ich9 smi to memory api
apci: switch ich9 gpe to memory api
acpi: cleanup vt82c686 memory region
acpi: cleanup piix4 memory region
apci: switch evt to memory api
apci: switch cnt to memory api
apci: switch timer to memory api
apci: switch vt82c686 to memory api
apci: switch ich9 to memory api
apci: switch piix4 to memory api
Conflicts:
hw/lpc_ich9.c
Resolved merge conflict due to apm_init adding an argument.
Anthony Liguori [Mon, 10 Dec 2012 14:31:19 +0000 (08:31 -0600)]
Merge remote-tracking branch 'kraxel/usb.74' into staging
* kraxel/usb.74:
usb-tablet: Allow connecting to ehci
ehci: Lower timer freq when the periodic schedule is idle
usb: Allow overriding of usb_desc at the device level
usb: Don't allow USB_RET_ASYNC for interrupt packets
usb: Call wakeup when data becomes available for all devices with int eps
add pc-1.4
Peter Maydell [Fri, 7 Dec 2012 15:39:13 +0000 (15:39 +0000)]
configure: Default to 'cc', not 'gcc'
Default to 'cc' as our compiler, rather than 'gcc'. We used to have
to insist on gcc when we still kept the CPU env in a fixed global
register, but this is no longer necessary and we will now compile OK
on clang as well as gcc. Using 'cc' should generally result in us
using the most standard and maintained system compiler for the
platform. (For instance on newer MacOS X 'gcc' exists but is an
elderly compiler provided mostly for legacy reasons, and 'cc'
(which is clang) is definitely the better choice.) On Linux there
will generally be no user-visible change since cc will be gcc.
This changeover necessitates a slight reworking of how we set the
'cc' variable, because GNU cross toolchains generally provide a
'${cross_prefix}gcc' but not a '${cross_prefix}cc'.
Peter Maydell [Fri, 12 Oct 2012 03:55:51 +0000 (03:55 +0000)]
linux-user: Merge pread/pwrite into pread64/pwrite64
The Linux syscalls underlying pread() and pwrite() take a 64 bit
offset on all architectures, even if some of them name the syscall
"pread/pwrite" rather than "pread64/pwrite64" for historical reasons.
So move the four QEMU target architectures (arm, i386, sparc,
unicore32) which were defining TARGET_NR_pread/pwrite to define
TARGET_NR_pread64/pwrite64 instead, and drop the TARGET_NR_pread/pwrite
implementation code completely.
(Based on examination of the kernel sources for the four architectures
this patch affects.)
Max Filippov [Wed, 5 Dec 2012 03:15:24 +0000 (07:15 +0400)]
target-xtensa: implement MISC SR
The Miscellaneous Special Registers Option provides zero to four scratch
registers within the processor readable and writable by RSR, WSR, and
XSR. These registers are privileged. They may be useful for some
application-specific exception and interrupt processing tasks in the
kernel. The MISC registers are undefined after reset.
See ISA, 4.7.3 for details.
Max Filippov [Wed, 5 Dec 2012 03:15:23 +0000 (07:15 +0400)]
target-xtensa: better control rsr/wsr/xsr access to SRs
There are read-only (DEBUGCAUSE, PRID) and write-only (INTCLEAR) SRs,
and INTERRUPT/INTSET SR allows rsr/wsr, but not xsr. Raise illeagal
opcode exception on illegal access to these SRs.
Max Filippov [Wed, 5 Dec 2012 03:15:22 +0000 (07:15 +0400)]
target-xtensa: restrict available SRs by enabled options
Beginning with the RA-2004.1 release, SR access instructions (rsr, wsr,
xsr) are associated with their corresponding SR and raise illegal opcode
exception in case the register is not configured for the core.
Max Filippov [Wed, 5 Dec 2012 03:15:21 +0000 (07:15 +0400)]
target-xtensa: implement CACHEATTR SR
In XEA1, the Options for Memory Protection and Translation and the
corresponding TLB management instructions are not available. Instead,
functionality similar to the Region Protection Option is available
through the cache attribute register. See ISA, A.2.14 for details.
Blue Swirl [Sat, 8 Dec 2012 17:50:57 +0000 (17:50 +0000)]
Merge branch 'master' of git.qemu-project.org:/pub/git/qemu
* 'master' of git.qemu-project.org:/pub/git/qemu:
target-mips: Fix incorrect shift for SHILO and SHILOV
target-mips: Fix incorrect code and test for INSV
xilinx_uartlite: Accept input after rx FIFO pop
xilinx_uartlite: suppress "cannot receive message"
xilinx_axienet: Implement R_IS behaviour
Eduardo Habkost [Tue, 4 Dec 2012 18:32:58 +0000 (16:32 -0200)]
finally kill cpudef config section support
The external CPU models were removed on QEMU 1.2, and the support for
the "cpudef" config sections was documented as deprecated, but the
actual removal of the config section was pending.
Now that QEMU 1.3 was released, we can finally kill the support for
cpudef config sections, and support only the built-in CPU models from
target-i386/cpu.c.
Peter Maydell [Wed, 31 Oct 2012 09:30:47 +0000 (09:30 +0000)]
HACKING: List areas where we may rely on impdef C behaviour
Add a section to HACKING saying which version of the C spec
we use and describing the bits of implementation defined C
compiler behaviour which C code in QEMU is allowed to rely on.
Brad Smith [Mon, 19 Nov 2012 09:22:12 +0000 (04:22 -0500)]
curses: Remove OpenBSD workaround
I removed the same sort of workaround for OpenBSD within the
configure script with commit 4dcc3f5876fa638d5c35bd47be3b717ea74cc2e7
but didn't bother to grep further to come across this same chunk
of code in the curses code itself. So the following diff removes
the same workaround chunk within the curses code.
Igor Mammedov [Mon, 22 Oct 2012 15:03:00 +0000 (17:03 +0200)]
target-i386: Postpone cpuid_level update to realize time
Delay capping cpuid_level to 7 to realize time so property setters
for cpuid_7_0_ebx_features and "level" could be used in any order/time
between x86_cpu_initfn() and x86_cpu_realize().
pc_sysfw: Plug memory leak on pc_fw_add_pflash_drv() error path
Harmless, because we the error inevitably leads to another, fatal one
in pc_system_flash_init(): PC system firmware (pflash) not available.
Fix it anyway.
Michal Privoznik [Fri, 23 Nov 2012 08:52:39 +0000 (09:52 +0100)]
qemu-options: Fix space at EOL
There's no need to add a space at the end of line.
Moreover, it can make problems in some projects that
store the help output into a file (and run couple of
tests based on that) and have space at EOL forbidden.
Eduardo Habkost [Tue, 4 Dec 2012 19:34:39 +0000 (17:34 -0200)]
target-i386: Separate feature string parsing from CPU model lookup
Instead of parsing the whole cpu_model string inside
cpu_x86_find_by_name(), first split it into the CPU model name and the
full feature string, then parse the feature string into pieces.
When using CPU model classes, those two pieces of information will be
used at different moments (CPU model name will be used to find CPU
class, feature string will be used after CPU object was created), so
making the split in two steps will make it easier to refactor the code
later.
This should also help on the CPU properties work, that will just need to
replace the cpu_x86_parse_featurestr() logic (and can keep the CPU model
lookup code as-is).
Eduardo Habkost [Tue, 4 Dec 2012 13:19:34 +0000 (11:19 -0200)]
qdev: qdev_create(): use error_report() instead of hw_error()
hw_error() is specific for fatal hardware emulation errors, not for
internal errors related to the qdev object/class abstraction or object
initialization.
Replace it with an error_report() call, followed by abort().
This will also help reduce dependencies of the qdev code (as hw_error()
is from cpus.o, and depends on the CPU list from exec.o).
Eduardo Habkost [Tue, 23 Oct 2012 23:41:52 +0000 (21:41 -0200)]
Create qemu-types.h for struct typedefs
Instead of keeping all those struct typedefs in qemu-common.h, move it
to a header that can be safely included by other headers, containing
only the struct typedefs and not pulling in other dependencies.
Also, move some of the qdev-core.h typedefs to the new file, too, so
other headers don't need to include qdev-core.h only because of
DeviceState and other typedefs.
This will help us remove qemu-common.h dependencies from some headers
later.
Eduardo Habkost [Tue, 23 Oct 2012 23:37:20 +0000 (21:37 -0200)]
qga/channel-posix.c: Include headers it needs
Include:
- <errno.h> for errno
- <unistd.h> & <fcntl.h> for fcntl()
- <stdlib.h> for exit()
- "osdep.h" for qemu_open()
Some of those headers were probably being included by accident because
some other headers were including qemu-common.h, but those headers
should eventually stop including qemu-common.h.
Eduardo Habkost [Tue, 23 Oct 2012 23:35:44 +0000 (21:35 -0200)]
qapi/qmp-registry.c: Include headers it needs
Include:
- <glib.h> for g_malloc0()
- <string.h> for strcmp()
Some of those headers were probably being included by accident because
some other headers were including qemu-common.h, but those headers
should eventually stop including qemu-common.h.
Eduardo Habkost [Tue, 23 Oct 2012 23:19:18 +0000 (21:19 -0200)]
ui/vnc-palette.c: Include headers it needs
Include:
- <glib.h> for g_malloc0()
- <string.h> for memset()
Some of those headers were probably being included by accident because
some other headers were including qemu-common.h, but those headers
should eventually stop including qemu-common.h.
Petar Jovanovic [Tue, 4 Dec 2012 23:29:10 +0000 (00:29 +0100)]
target-mips: Fix incorrect shift for SHILO and SHILOV
helper_shilo has not been shifting an accumulator value correctly for negative
values in 'shift' field. Minor optimization for shift=0 case.
This change also adds tests that will trigger issue and check for regressions.
Paolo Bonzini [Thu, 11 Oct 2012 12:20:23 +0000 (14:20 +0200)]
virtfs-proxy-helper: use setresuid and setresgid
The setfsuid and setfsgid system calls are obscure and they complicate
the error checking (that glibc's warn_unused_result "feature" forces
us to do). Switch to the standard setresuid and setresgid functions.
The device return false from the can receive function when the FIFO is
full. This mean the device should check for buffered input whenever a byte is
popped from the FIFO.
The interrupt status register R_IS is the standard clear-on-write behaviour.
This was unimplemented and defaulting to updating the register to the written
value. Implemented clear-on-write.
Hans de Goede [Sat, 17 Nov 2012 11:47:18 +0000 (12:47 +0100)]
usb-tablet: Allow connecting to ehci
Our ehci code has is capable of significantly lowering the wakeup rate
for the hcd emulation while the device is idle. It is possible to add
similar code ot the uhci emulation, but that simply is not there atm,
and there is no reason why a (virtual) usb-tablet can not be a USB-2 device.
Making usb-hid devices connect to the emulated ehci controller instead
of the emulated uhci controller on vms which have both lowers the cpuload
for a fully idle vm from 20% to 2-3% (on my laptop).
An alternative implementation to using a property to select the tablet
type, would be simply making it a new device type, ie usb-tablet2, but the
downside of that is that this will require libvirt changes to be available
through libvirt at all, and then management tools changes to become the
default for new vms, where as using a property will automatically get
any pc-1.3 type vms the lower cpuload.
[ kraxel: adapt compat property for post-1.3 merge ]
Hans de Goede [Sat, 17 Nov 2012 11:47:17 +0000 (12:47 +0100)]
ehci: Lower timer freq when the periodic schedule is idle
Lower the timer freq if no iso schedule packets complete for 64 frames in
a row.
We can safely do this, without adding latency, because:
1) If there is isoc traffic this will never trigger
2) For async handled interrupt packets (only usb-host), the completion handler
will immediately schedule the frame_timer from a bh
3) All devices using NAK to signal no data for interrupt endpoints now use
wakeup, which will immediately schedule the frame_timer from a bh
The advantage of this is that when we only have interrupt packets in the
periodic schedule, async_stepdown can do its work and significantly lower
the frequency at which the frame_timer runs.
Hans de Goede [Sat, 17 Nov 2012 11:47:15 +0000 (12:47 +0100)]
usb: Don't allow USB_RET_ASYNC for interrupt packets
It is tempting to use USB_RET_ASYNC for interrupt packets, rather then the
current NAK + polling approach, but this causes issues for migration, as
an async completed packet will not getting written back to guest memory until
the next poll time, and if a migration happens in between it will get lost!
Make an exception for host devices, because:
1) host-linux actually uses async completion for interrupt endpoints
2) host devices don't migrate anyways
Ideally we would convert host-linux.c to handle (input) interrupt endpoints in
a buffered manner like it does for isoc endpoints, keeping multiple urbs
submitted to ensure the devices timing requirements are met, as well as making
its interrupt ep handling the same as other usb-devices.
Hans de Goede [Sat, 17 Nov 2012 11:47:14 +0000 (12:47 +0100)]
usb: Call wakeup when data becomes available for all devices with int eps
This is necessary for proper interaction with the xhci controller, and it
will allow other hcds to lower there frame timer while waiting for interrupt
data.
Gerd Hoffmann [Tue, 27 Nov 2012 07:24:42 +0000 (08:24 +0100)]
acpi: drop debug port
I'm pretty sure this isn't needed any more. I think this predates the
switch to seabios, and the seabios DSDT table has a DBUG() aml macro
which writes stuff to the seabios debug port (0x402).
e1000: Discard packets that are too long if !SBP and !LPE
The e1000_receive function for the e1000 needs to discard packets longer than
1522 bytes if the SBP and LPE flags are disabled. The linux driver assumes
this behavior and allocates memory based on this assumption.
Anthony Liguori [Fri, 30 Nov 2012 16:24:24 +0000 (10:24 -0600)]
Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony:
coroutine-sigaltstack.c: Use stack_t, not struct sigaltstack
stream: fix ratelimit_set_speed
atapi: make change media detection for guests easier
Documentation: Update image format information
Documentation: Update block cache mode information
Anthony Liguori [Fri, 30 Nov 2012 16:20:21 +0000 (10:20 -0600)]
Merge remote-tracking branch 'kraxel/usb.73' into staging
* kraxel/usb.73:
ehci-sysbus: Attach DMA context.
usb: fail usbdevice_create() when there is no USB bus
usb: tag usb host adapters as not hotpluggable.
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