* 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.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

* aneesh/for-upstream:
  virtfs-proxy-helper: use setresuid and setresgid
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

* 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
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

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'.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

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.)
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Use movcond for all sorts of conditional moves, ABS, CLAMPS, MIN/MAX
opcodes.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

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.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

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.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

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.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

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.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

ATOMCTL SR controls s32c1i opcode behavior depending on targeted memory
type. See ISA, 4.3.12.4 for details.
Signed-off-by: NMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

* '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

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.
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

* 'memory-ioport' of git://github.com/afaerber/qemu-cpu:
  hw/dma.c: Replace register_ioport_*
  hw/pc.c: Replace register_ioport_*
  serial: Replace register_ioport_*
  hw/cirrus_vga.c: Replace register_ioport_*
  hw/apm.c: Replace register_ioport_*
  isa: Add isa_address_space_io()

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.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

When older versions are found the internal pixman version is prefered.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NEvgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

I removed the same sort of workaround for OpenBSD within the
configure script with commit 4dcc3f58
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.
Signed-off-by: NBrad Smith <brad@comstyle.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

After allocating 32MB or more contiguous memory, huge pages
would seem to be ideal.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

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.
Signed-off-by: NPetar Jovanovic <petarj@mips.com>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Reviewed-by: NEric Johnson <ericj@mips.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Content of register rs should be shifted for pos before applying a mask.
This change contains both fix for the instruction and to the existing test.
Signed-off-by: NPetar Jovanovic <petarj@mips.com>
Reviewed-by: NEric Johnson <ericj@mips.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

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.

Signed-off-by: Paolo Bonzini <pbonini@redhat.com
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

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.
Reported-by: NJason Wu <huanyu@xilinx.com>
Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

This message is not an error condition, its just informing the user that
the device is corking the uart traffic to not drop characters.
Reported-by: NJason Wu <huanyu@xilinx.com>
Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

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.
Reported-by: NJason Wu <huanyu@xilinx.com>
Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Replace all register_ioport_*() with the new Memory API functions.
This permits to use the new Memory stuff like listeners.
Signed-off-by: NJulien Grall <julien.grall@citrix.com>
Acked-by: NAvi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr]
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Replace all register_ioport_*() with portio_*() or a MemoryRegion.
This permits to use the new Memory stuff like listeners.
Signed-off-by: NJulien Grall <julien.grall@citrix.com>
Acked-by: NAvi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr]
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Replace all register_ioport_*() with a MemoryRegion.
This permits to use the new Memory stuff like listeners.

For more flexibility, the IO address space is passed as an argument.
Signed-off-by: NJulien Grall <julien.grall@citrix.com>
Acked-by: NAvi Kivity <avi@redhat.com>
[AF: Rebased onto serial split]
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Replace all register_ioport_*() with the new Memory API.
This permits to use the new Memory stuff like listeners.
Signed-off-by: NJulien Grall <julien.grall@citrix.com>
Acked-by: NAvi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr]
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Replace all register_ioport_*() with a MemoryRegion.
This permits to use the new Memory stuff like listeners.

Moreover, the PCI device is added as an argument for apm_init(),
so we can register IO inside the PCI IO address space.
Signed-off-by: NJulien Grall <julien.grall@citrix.com>
Acked-by: NAvi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr and q35]
Signed-off-by: NAndreas Färber <afaerber@suse.de>

This function permits to retrieve ISA IO address space.
It will be usefull when we need to pass IO address space as argument.
Signed-off-by: NJulien Grall <julien.grall@citrix.com>
Acked-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NAndreas Färber <afaerber@suse.de>

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 ]
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

tablet compat fixup
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

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.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This allows devices to present a different set of descriptors based on
device properties.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>