Currently, the return code for get_phys_addr is overloaded for both
success/fail and FSR value return. This doesn't handle the case where
there is an error with a 0 FSR. This case exists in PMSAv7.
So rework get_phys_addr and friends to return a success/failure boolean
return code and populate the FSR via a caller provided uint32_t
pointer.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: a209e3d8ae00cda55260c970891f520210e26bad.1434066412.git.peter.crosthwaite@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
V6+ PMSA and VMSA share some common registers that are currently
in the VMSA definition block. Split them out into a new def that can
be shared to PMSA.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 284db78a43c63c9bfbb60de539672c361bcb6af8.1434066412.git.peter.crosthwaite@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
These registers are VMSA specific so they should be conditional on
VMSA (i.e. !MPU).
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 7bb8843e45f2635c6b7a583c5bb5da51ed4442a0.1434066412.git.peter.crosthwaite@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If doing a PMSA (MPU) system do not define the VMSA specific TLBTR CP.
The def is done separately from VMSA registers group as it is affected
by both the OMAP/STRONGARM RW errata and the MIDR backgrounding.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: b03fea3840207edf633f5c9189400c3dd6a28d14.1434066412.git.peter.crosthwaite@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Create an ARM_FEATURE_THUMB_DSP controlling the Thumb encodings of
the 85 DSP instructions (these are all Thumb2). This is enabled for
all non-M-profile CPUs with Thumb2 support, as the instructions are
mandatory for R and A profiles. On M profile they are optional and
not present in the Cortex-M3 (though they are in the M4).
The effect of this commit is that we will now treat the DSP
encodings as illegal instructions on M3, when previously we
incorrectly implemented them.
Signed-off-by: Aurelio C. Remonda <aurelioremonda@gmail.com>
Message-id: 1434311355-26554-1-git-send-email-aurelioremonda@gmail.com
[PMM: added clz/crc32/crc32c and default case to the early-decode switch;
minor format/spacing fixups; reworded commit message a bit]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Update the pxa2xx_mmci device to stop using the old_mmio read
and write callbacks in its MemoryRegionOps. This actually
simplifies the code because the separate byte/halfword/word
access functions were all calling into a single function to
do the work anyway.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1434117989-7367-6-git-send-email-peter.maydell@linaro.org
The pxa2xx-ssp device is already a QOM device but is still
using the old-style register_savevm(); convert to VMState.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1434117989-7367-5-git-send-email-peter.maydell@linaro.org
The pxa2xx_ssp device was missing a reset method; add one.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter..crosthwaite@xilinx.com>
Message-id: 1434117989-7367-4-git-send-email-peter.maydell@linaro.org
Convert the pxa2xx-fir device to QOM, including using a
VMState for its migration info.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1434117989-7367-3-git-send-email-peter.maydell@linaro.org
The pxa2xx custom coprocessor registers in cp6 and cp14 do device
accesses, so mark the non-constant regs as ARM_CP_IO so that
icount works correctly and doesn't abort.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1434117989-7367-2-git-send-email-peter.maydell@linaro.org
When we're using KVM, the kernel's internal idea of the MPIDR
affinity fields must match the values we tell it for the guest
vcpu cluster configuration in the device tree. Since at the moment
the kernel doesn't support letting userspace tell it the correct
affinity fields to use, we must read the kernel's view and
reflect that back in the device tree.
Signed-off-by: Shlomo Pongratz <shlomo.pongratz@huawei.com>
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Message-id: 02f601d0a1e6$90c7d630$b2578290$@samsung.com
[PMM: Use a local #define rather than a global variable for
the TCG ARM_CPUS_PER_CLUSTER setting. Tweak a comment. Update the
commit message.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add Shannon Zhao as the maintainer for the ARM ACPI Subsystem.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1433248318-6076-1-git-send-email-shannon.zhao@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
According to ARMv8 ARM, there are additional aliases to MIDR system register in
AArch32 state. So add them to the list.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1433321048-23793-3-git-send-email-serge.fdrv@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
According to ARM Cortex-A53/A57 TRM, REVIDR reset value should be zero. So let
REVIDR reset value be specified by CPU model and correct it for Cortex-A53/A57.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1433321048-23793-2-git-send-email-serge.fdrv@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add cortex-a53 cpu support in machine virt, so it can be used for TCG
and KVM.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1433207452-4512-3-git-send-email-shannon.zhao@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Since commit e353102(target-arm: cpu64: Add support for Cortex-A53) has
added Cortex-A53 cpu support for target-arm, this patch just enables it
for kvm-arm.
Here adding XGENE_POTENZA just makes the enum continuous.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id: 1433207452-4512-2-git-send-email-shannon.zhao@linaro.org
[PMM: Don't add the CPU types to cpus_to_try[]; this array only
lists old CPUs which were supported in pre-PREFERRED_TARGET kernels]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This isn't used by any of the code. In fact it looks like it was never
used as it came in with ARMv7 support.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1434020015-8868-1-git-send-email-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
fimd_swap_data() includes code to reverse the bits in a
64-bit integer, but an off-by-one error meant that it would
try to shift off the top of the integer. Correct the bug
(spotted by Coverity).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1432912615-23107-1-git-send-email-peter.maydell@linaro.org
This patch fixes so that gic_update always updates all the cores with
new pending irq states. If the function returns early it is possible
to get interrupts that has already been acknowledged.
Signed-off-by: Johan Karlsson <johan.karlsson@enea.com>
[PMM: rebased to apply to current master]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Since ARMv7 with LPAE support, a supersection short translation table
descriptor has had extended base address fields which hold bits 39:32 of
translated address. These fields are IMPDEF in ARMv6 and ARMv7 without
LPAE support.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id: 1433235718-30485-1-git-send-email-serge.fdrv@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The old ARMv5-style page table format includes a kind of second level
descriptor named the "extended small page" format, whose primary purpose
is to allow specification of the TEX memory attribute bits on a 4K page.
This exists on ARMv6 and also (as an implementation extension) on XScale
CPUs; it's UNPREDICTABLE on v5.
We were mishandling this in two ways:
(1) we weren't implementing it for v6 (probably never noticed because
Linux will use the new-style v6 page table format there)
(2) we were not correctly setting the page_size, which is 4K, not 1K
The latter bug went unnoticed for years because the only thing which
the page_size affects is which TLB entries get flushed when the guest
does a TLB invalidate on an address in the page, and prior to commit
2f0d8631b7 we were doing a full TLB flush very frequently due to Linux's
habit of writing the SCTLR pointlessly a lot.
(We can assume that after commit 2f0d8631b7 the bug went unnoticed
for a year because nobody's actually using the Zaurus/XScale emulation...)
Report the correct page size for these descriptors, and permit them
on ARMv6 CPUs. This fixes a problem where a kernel image for Zaurus
can boot the kernel OK but gets random segfaults when it tries to
run userspace programs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1432844085-16441-1-git-send-email-peter.maydell@linaro.org
audio: stop using global variables, small fixes.
audio: remove some obsolte and unused code.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=z4QK
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/kraxel/tags/pull-audio-20150615-1' into staging
audio: remove obsolete backends (esd, fmod, winwave).
audio: stop using global variables, small fixes.
audio: remove some obsolte and unused code.
# gpg: Signature made Mon Jun 15 13:24:44 2015 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-audio-20150615-1:
ossaudio: use trace events instead of debug config flag
alsaaudio: use trace events instead of verbose
dsoundaudio: remove primary buffer
dsoundaudio: remove *_retries kludges
audio: remove plive
audio: remove LOG_TO_MONITOR along with default_mon
MAINTAINERS: remove malc from audio
sdlaudio: do not allow multiple instances
coreaudio: do not use global variables where possible
dsoundaudio: do not use global variables
paaudio: fix possible resource leak
wavaudio: do not use global variables
ossaudio: do not use global variables
alsaaudio: do not use global variables
paaudio: do not use global variables
audio: expose drv_opaque to init_out and init_in
only enable dsound in case the header file is present
audio: remove winwave audio driver
audio: remove fmod backend
audio: remove esd backend
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Starting with version 4.9, GCC assumes it can't safely dereference null
pointers, and uses this for some optimizations. On s390, the lowcore
memory is located at address 0, so this assumption is wrong and breaks
the s390-ccw firmware. Pass -fdelete-null-pointer-checks to avoid that.
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Message-Id: <1434363843-14576-1-git-send-email-aurelien@aurel32.net>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Enabling this option just creates a playback buffer with the specified settings,
and then ignores it. It's probably some outdated hack to set audio formats on
windows. (The first created stream dictates all other streams settings, at least
on some Windows versions). Setting DAC_FIXED_SETTINGS should have the same
effect as setting (the now removed) primary buffer.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
According to MSDN this may happen when the window is not in the foreground, but
the default is 1 since a long time (which means no retries), so it should be ok.
I've found no problems during testing it on Windows 7 and wine, so this was
probably only the case with some old Windows versions.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Setting QEMU_AUDIO_LOG_TO_MONITOR=1 can crash qemu (if qemu tries to log
to the monitor before it's being initialized), and also nothing else in
qemu logs to the monitor.
This log to monitor feature was the last thing that used the default_mon
variable, so I removed it too (as using it can cause problems).
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Since SDL uses a lot of global data, we can't create independent
instances of sdl audio backend.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
qpa_audio_init did not clean up resources properly if the initialization
failed. This hopefully fixes it.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently the opaque pointer returned by audio_driver's init is only
exposed to the driver's fini, but not to audio_pcm_ops. This way if
someone wants to share a variable with the driver and the pcm, he must
use global variables. This patch fixes it by adding a third parameter to
audio_pcm_op's init_out and init_in.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=QgYk
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer core and image format patches
# gpg: Signature made Fri Jun 12 16:08:53 2015 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream: (25 commits)
block: Fix reopen flag inheritance
block: Add BlockDriverState.inherits_from
block: Add list of children to BlockDriverState
queue.h: Add QLIST_FIX_HEAD_PTR()
block: Drain requests before swapping nodes in bdrv_swap()
block: Move flag inheritance to bdrv_open_inherit()
block: Use QemuOpts in bdrv_open_common()
block: Use macro for cache option names
vmdk: Use bdrv_open_image()
quorum: Use bdrv_open_image()
check-qdict: Test cases for new functions
qdict: Add qdict_{set,copy}_default()
qdict: Add qdict_array_entries()
iotests: Add tests for overriding BDRV_O_PROTOCOL
block: driver should override flags in bdrv_open()
block: Change bitmap truncate conditional to assertion
block: record new size in bdrv_dirty_bitmap_truncate
raw-posix: Fix .bdrv_co_get_block_status() for unaligned image size
vmdk: Use vmdk_find_index_in_cluster everywhere
vmdk: Fix index_in_cluster calculation in vmdk_co_get_block_status
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
DirectSound should be a superior choice on Windows.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
ESD is no longer developed and replaced by PulseAudio.
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Version: GnuPG v1
iQEcBAABAgAGBQJVevNrAAoJEJykq7OBq3PIn3wH/iTkoxK+8c6vHY4gAyW/3Vel
JAWyDULliLg/mJiyDyz+9hbyb3FmDsQ7Gve5laFCqSES8IChe/fAoR2dXAapHbJm
VroBii+C4MIakAjB1eSGVTMeJVgyq0SxCbEgo6MSgCNRg8pH/ne4kGMn0elsyMQm
VrxqsoW1qda0gLbybu7uRKmdZlb5Eklk0zQmBlzd25j3xgMXmo7ZcXW0d7dCi/xd
ot01aPNHWKy2FyYsI+N1SMagCedjn0FFCHMMc08W34olUOAschV+Croxi6gupbTl
RdlYNnB6BBYLgT7mxYuKKd20r4Q8Si3E5YjIsYaXIskbCOxDuryKboyheMXWqdA=
=mx5x
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
# gpg: Signature made Fri Jun 12 15:57:47 2015 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/block-pull-request:
qemu-iotests: expand test 093 to support group throttling
throttle: Update throttle infrastructure copyright
throttle: add the name of the ThrottleGroup to BlockDeviceInfo
throttle: acquire the ThrottleGroup lock in bdrv_swap()
throttle: Add throttle group support
throttle: Add throttle group infrastructure tests
throttle: Add throttle group infrastructure
throttle: Extract timers from ThrottleState into a separate structure
raw-posix: Fix .bdrv_co_get_block_status() for unaligned image size
Revert "iothread: release iothread around aio_poll"
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When reopening an image, the block layer already takes care to reopen
bs->file as well with recalculated inherited flags. The same must happen
for any other child (most notably missing before this patch: backing
files).
If bs->file (or any other child) didn't originally inherit from bs, e.g.
because it was created separately and then only referenced, it must not
inherit flags on reopen either, so check the inherited_from field before
propagation the reopen down.
VMDK already reopened its extents manually; this code can now be
dropped.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Currently, the block layer assumes that any block node can have only one
parent, and if it has a parent, that it inherits some options/flags from
this parent.
This is not true any more: With references used in block device
creation, a single node can be used by multiple parents, or it can be
created separately and not inherit flags from any parent.
To handle reopens correctly, a node must know from which parent it
inherited options. This patch adds the information to BlockDriverState.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This allows iterating over all children of a given BDS, not only
including bs->file and bs->backing_hd, but also driver-specific
ones like VMDK extents or Quorum children.
For bdrv_swap(), the list of children of the swapped BDS stays at that
BDS (because that's where the pointers stay as well). The list head
moves and pointers to it must be fixed up therefore.
The list of children in the parent of the swapped BDS is not affected by
the swap. The contents of the BDS objects is swapped, so the existing
pointer in the parent automatically points to the newly swapped in BDS.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
If the head of a list has been moved to a different memory location, the
le_prev link in the first list entry has to be fixed up. Provide a macro
that implements this fixup.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>