UMONITOR, UMWAIT and TPAUSE are a set of user wait instructions.
UMONITOR arms address monitoring hardware using an address. A store
to an address within the specified address range triggers the
monitoring hardware to wake up the processor waiting in umwait.
UMWAIT instructs the processor to ente
UMWAIT and TPAUSE instructions use IA32_UMWAIT_CONTROL at MSR index
E1H to determines the maximum time in TSC-quanta that the processor
can reside in either C0.1 or C0.2.
This patch is to Add support for save/load IA32_UMWAIT_CONTROL MSR in
guest.
Co-developed-by: Jingqi Liu
Signed-off-by: Jingq
The ast2500 uses the watchdog to reset the SDRAM controller. This
operation is usually performed by u-boot's memory training procedure,
and it is enabled by setting a bit in the SCU and then causing the
watchdog to expire. Therefore, we need the watchdog to be able to
access the SCU's register spac
On 6/21/19 8:09 AM, Cleber Rosa wrote:
> It's a fact that some tests may not be 100% reliable in all
> environments. While it's a tough call to remove a useful test that
> from the tree because it may fail every 1/100th time (or so), having
> human attention drawn to known issues is very bad for h
>
> Hello Eric,
>
> > A new command may be okay, however,
>
> thanks, I've fix the typos and updated the patch to use an Enum, which
> indeed makes more sense.
>
> I've also updated "spice-query" command to provide the current value
> of the "video-codec" property,
> but it made me wonder if I
On 2019/6/21 下午2:43, Zhang, Chen wrote:
Anyone have any comments about this series?
Thanks
Zhang Chen
I will probably review and give feedback sometime next week.
Thanks
-Original Message-
From: Qemu-devel [mailto:qemu-devel-
bounces+chen.zhang=intel@nongnu.org] On Behalf
Relevant 32-bit output:
tests/acceptance/linux_ssh_mips_malta.py:LinuxSSH.test_mips_malta32eb_kernel3_2_0
[ 34.968000] Using buffer write method
[ 38.324000] Searching for RedBoot partition table in physmap-flash.0 at
offset 0x3f
[ 38.328000] No RedBoot partition table detected in phys
Relevant 64-bit output:
tests/acceptance/linux_ssh_mips_malta.py:LinuxSSH.test_mips_malta64eb_kernel3_2_0
[0.00] Initializing cgroup subsys cpuset
[0.00] Initializing cgroup subsys cpu
[0.00] Linux version 3.2.0-4-5kc-malta (debian-ker...@lists.debian.org)
(gcc version 4.
Public bug reported:
commit 33d609990621dea6c7d056c86f707b8811320ac1
While running tests/acceptance/linux_ssh_mips_malta.py, the big-endian
tests fail:
physmap-flash.0: Found 1 x32 devices at 0x0 in 32-bit bank. Manufacturer ID
0x00 Chip ID 0x00
Intel/Sharp Extended Query Table at 0
> -Original Message-
> From: Jason Wang [mailto:jasow...@redhat.com]
> Sent: Friday, June 21, 2019 3:25 PM
> To: Zhang, Chen ; Li Zhijian ;
> Dr. David Alan Gilbert ; Juan Quintela
> ; zhanghailiang ;
> qemu-dev ; Stefano Stabellini
> ; Paul Durrant
> Cc: Zhang Chen
> Subject: Re: [PATC
On Tue, May 14, 2019 at 03:21:08PM +0100, Dr. David Alan Gilbert wrote:
>* Wei Yang (richardw.y...@linux.intel.com) wrote:
>> Since start of cpu_physical_memory_sync_dirty_bitmap is always 0, we can
>> remove this parameter and simplify the calculation a bit.
>>
>> Signed-off-by: Wei Yang
>
>So I
On Tue, Jun 11, 2019 at 10:33:29AM +0200, Juan Quintela wrote:
>Wei Yang wrote:
>> On Tue, Apr 02, 2019 at 08:31:06AM +0800, Wei Yang wrote:
>>>MigrationState->bytes_xfer is only set to 0 in migrate_init().
>>>
>>>Remove this unnecessary field.
>>>
>>>Signed-off-by: Wei Yang
>>
>> Hi, David
>
>Hi
On Fri, Jun 21, 2019 at 02:44:30PM +0800, Kirti Wankhede wrote:
>
>
> On 6/21/2019 5:42 AM, Yan Zhao wrote:
> > On Thu, Jun 20, 2019 at 10:37:31PM +0800, Kirti Wankhede wrote:
> >> These functions save and restore PCI device specific data - config
> >> space of PCI device.
> >> Tested save and re
On Fri, Jun 21, 2019 at 9:16 AM Frediano Ziglio wrote:
>
> >
> > Hello Eric,
> >
> > > A new command may be okay, however,
> >
> > thanks, I've fix the typos and updated the patch to use an Enum, which
> > indeed makes more sense.
> >
> > I've also updated "spice-query" command to provide the curr
Public bug reported:
Download a ARM package from https://packages.debian.org/sid/busybox-
static
Here tested with: busybox-static_1.30.1-4_armel.deb
$ file busybox.armel
busybox.armel: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV),
statically linked, for GNU/Linux 3.2.0,
BuildID[sha1]
On Fri, 21 Jun 2019 08:56:44 +0800
Wei Yang wrote:
> On Thu, Jun 20, 2019 at 05:04:29PM +0200, Igor Mammedov wrote:
> >On Thu, 20 Jun 2019 14:18:42 +
> >Wei Yang wrote:
> >
> >> On Wed, Jun 19, 2019 at 11:04:40AM +0200, Igor Mammedov wrote:
> >> >On Wed, 19 Jun 2019 14:20:50 +0800
> >> >
From: Pavel Dovgalyuk
icount-based record/replay uses qemu_clock_deadline_ns_all to measure
the period until vCPU may be interrupted.
This function takes in account the virtual timers, because they belong
to the virtual devices that may generate interrupt request or affect
the virtual machine sta
On 21/06/2019 08:52, Joel Stanley wrote:
> The ast2500 uses the watchdog to reset the SDRAM controller. This
> operation is usually performed by u-boot's memory training procedure,
> and it is enabled by setting a bit in the SCU and then causing the
> watchdog to expire. Therefore, we need the watc
From: Pavel Dovgalyuk
This patch adds support of the reverse continue operation for gdbstub.
Reverse continue finds the last breakpoint that would happen in normal
execution from the beginning to the current moment.
Implementation of the reverse continue replays the execution twice:
to find the b
On Thu, Jun 20, 2019 at 08:59:55PM +0800, Peter Xu wrote:
> On Thu, Jun 20, 2019 at 10:35:29AM +0200, Paolo Bonzini wrote:
> > On 20/06/19 06:02, Peter Xu wrote:
> > > Seems workable, to be explicit - we can even cut it into chunks with
> > > different size to be efficient.
> >
> > Yes, this is no
From: Pavel Dovgalyuk
This patch renames replay_get_current_step() and related variables
to make these names consistent with hmp/qmp commands.
Signed-off-by: Pavel Dovgalyuk
---
blockdev.c|2 +-
include/sysemu/replay.h |2 +-
migration/savevm.c|2 +-
repla
From: Pavel Dovgalyuk
This patch updates the documentation and describes usage of the reverse
debugging in QEMU+GDB.
Signed-off-by: Pavel Dovgalyuk
---
docs/replay.txt | 33 +
1 file changed, 33 insertions(+)
diff --git a/docs/replay.txt b/docs/replay.txt
ind
From: Pavel Dovgalyuk
This patch introduces replay_break, replay_delete_break
qmp and hmp commands.
These commands allow stopping at the specified instruction.
It may be useful for debugging when there are some known
events that should be investigated.
replay_break command has one argument - numb
From: Pavel Dovgalyuk
This patch fixes shutdown of the replay process, which is terminated with
the assert when shutdown event is read from the log.
replay_finish_event reads new data_kind and therefore the value of data_kind
should be preserved to be valid at qemu_system_shutdown_request call.
From: Pavel Dovgalyuk
Non-empty record/replay queue prevents saving and loading the VM state,
because it includes pending bottom halves and block coroutines.
But when the new VM state is loaded, we don't have to preserve the consistency
of the current state anymore. Therefore this patch just flus
From: Pavel Dovgalyuk
In record/replay mode bdrv queue is controlled by replay mechanism.
It does not allow saving or loading the snapshots
when bdrv queue is not empty. Stopping the VM is not blocked by nonempty
queue, but flushing the queue is still impossible there,
because it may cause deadlo
From: Pavel Dovgalyuk
This patch introduces docs/devel/replay.txt which describes the rules
that should be followed to make virtual devices usable in record/replay mode.
Signed-off-by: Pavel Dovgalyuk
--
v9: fixed external virtual clock description (reported by Artem Pisarenko)
---
docs/deve
From: Pavel Dovgalyuk
Most of IO instructions can be executed only at the end of the block in
icount mode. Therefore translator can set cpu_can_io flag when translating
the last instruction.
But when the blocks are chained, then this flag is not reset and may
remain set at the beginning of the ne
From: Pavel Dovgalyuk
Replay is capable of recording normal BH events, but sometimes
there are single use callbacks scheduled with aio_bh_schedule_oneshot
function. This patch enables recording and replaying such callbacks.
Block layer uses these events for calling the completion function.
Replay
From: Pavel Dovgalyuk
GDB remote protocol supports two reverse debugging commands:
reverse step and reverse continue.
This patch adds support of the first one to the gdbstub.
Reverse step is intended to step one instruction in the backwards
direction. This is not possible in regular execution.
Bu
From: Pavel Dovgalyuk
This patch enables making snapshots with blkreplay used in
block devices.
This function is required to make bdrv_snapshot_goto without
calling .bdrv_open which is not implemented.
Signed-off-by: Pavel Dovgalyuk
Acked-by: Kevin Wolf
---
block/blkreplay.c |8
On 6/21/2019 6:54 AM, Yan Zhao wrote:
> On Fri, Jun 21, 2019 at 08:25:18AM +0800, Yan Zhao wrote:
>> On Thu, Jun 20, 2019 at 10:37:28PM +0800, Kirti Wankhede wrote:
>>> Add migration support for VFIO device
>>>
>>> This Patch set include patches as below:
>>> - Define KABI for VFIO device for mi
From: Pavel Dovgalyuk
This patch removes refactoring artifacts from the replay/replay-time.c
Signed-off-by: Pavel Dovgalyuk
---
replay/replay-time.c | 36
1 file changed, 16 insertions(+), 20 deletions(-)
diff --git a/replay/replay-time.c b/replay/replay
From: pbonz...@redhat.com
This is a fix which was missed by patch
74c0b816adfc6aa1b01b4426fdf385e32e35cbac, which added current_step
parameter to the replay_advance_current_step function.
Signed-off-by: Pavel Dovgalyuk
---
replay/replay-internal.c |2 +-
1 file changed, 1 insertion(+), 1 d
GDB remote protocol supports reverse debugging of the targets.
It includes 'reverse step' and 'reverse continue' operations.
The first one finds the previous step of the execution,
and the second one is intended to stop at the last breakpoint that
would happen when the program is executed normally.
Pranith Kumar writes:
> Hi Alex/Emilio,
>
> I am really happy to see the progress you made on the plugin feature. Looking
> forward to seeing it merged soon! Please CC me on future versions of the
> patchset. I am happy to help review and contribute to this effort.
Will do.
>
> I have a few g
19.06.2019 22:27, Max Reitz wrote:
> On 29.05.19 19:56, Andrey Shinkevich wrote:
>> This patch is used in the 'block/stream: introduce a bottom node'
>> that is following. Instead of the base node, the caller may pass
>> the node that has the base as its backing image to the function
>> bdrv_is_all
From: Pavel Dovgalyuk
This patch adds an accessor function for the name of the record/replay
log file. Adding an accessor instead of making variable global,
prevents accidental modification of this variable by other modules.
Signed-off-by: Pavel Dovgalyuk
---
include/sysemu/replay.h |2 ++
19.06.2019 19:37, Max Reitz wrote:
> On 19.06.19 16:44, Vladimir Sementsov-Ogievskiy wrote:
>> Instead of draining additional nodes in each job code, let's do it in
>> common block_job_drain, draining just all job's children.
>>
>> It's also a first step to finally get rid of blockjob->blk.
>>
>> S
From: Pavel Dovgalyuk
This patch adds replay.json file. It will be
used for adding record/replay-related data structures and commands.
Signed-off-by: Pavel Dovgalyuk
Reviewed-by: Markus Armbruster
--
v10:
- minor changes
v13:
- rebased to the new QAPI files
---
MAINTAINERS |
From: Pavel Dovgalyuk
After recent updates block devices cannot be closed on qemu exit.
This happens due to the block request polling when replay is not finished.
Therefore now we stop execution recording before closing the block devices.
Signed-off-by: Pavel Dovgalyuk
---
replay/replay.c |
From: Pavel Dovgalyuk
This patch adds hmp/qmp commands replay_seek/replay-seek that proceed
the execution to the specified instruction count.
The command automatically loads nearest snapshot and replays the execution
to find the desired instruction count.
Signed-off-by: Pavel Dovgalyuk
Acked-by
From: Pavel Dovgalyuk
This patch updates the description of the command lines for using
record/replay with attached block devices.
Signed-off-by: Pavel Dovgalyuk
---
docs/replay.txt | 12 +---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/docs/replay.txt b/docs/replay
From: Pavel Dovgalyuk
This patch introduces 'info replay' monitor command and
corresponding qmp request.
These commands request the current record/replay mode, replay log file
name, and the instruction count (number of recorded/replayed
instructions). The instruction count can be used with the
r
On 6/21/19 10:25 AM, Cédric Le Goater wrote:
> On 21/06/2019 08:52, Joel Stanley wrote:
>> The ast2500 uses the watchdog to reset the SDRAM controller. This
>> operation is usually performed by u-boot's memory training procedure,
>> and it is enabled by setting a bit in the SCU and then causing the
From: Pavel Dovgalyuk
Saving icount as a parameters of the snapshot allows navigation between
them in the execution replay scenario.
This information can be used for finding a specific snapshot for proceeding
the recorded execution to the specific moment of the time.
E.g., 'reverse step' action (
From: Pavel Dovgalyuk
This patch introduces the icount field for saving within the snapshot.
It is required for navigation between the snapshots in record/replay mode.
Signed-off-by: Pavel Dovgalyuk
Acked-by: Kevin Wolf
--
v2:
- documented format changes in docs/interop/qcow2.txt
(sugges
Am 09.04.2019 um 12:01 hat Kevin Wolf geschrieben:
> Am 02.04.2019 um 10:35 hat Denis Plotnikov geschrieben:
> > On 13.03.2019 19:04, Kevin Wolf wrote:
> > > Am 14.12.2018 um 12:54 hat Denis Plotnikov geschrieben:
> > >> On 13.12.2018 15:20, Kevin Wolf wrote:
> > >>> Am 13.12.2018 um 12:07 hat Deni
From: Pavel Dovgalyuk
This patch disables setting '-snapshot' option on by default
in record/replay mode. This is needed for creating vmstates in record
and replay modes.
Signed-off-by: Pavel Dovgalyuk
Acked-by: Kevin Wolf
---
vl.c | 10 --
1 file changed, 8 insertions(+), 2 deletio
On Fri, Jun 21, 2019 at 04:02:50PM +0800, Kirti Wankhede wrote:
>
>
> On 6/21/2019 6:54 AM, Yan Zhao wrote:
> > On Fri, Jun 21, 2019 at 08:25:18AM +0800, Yan Zhao wrote:
> >> On Thu, Jun 20, 2019 at 10:37:28PM +0800, Kirti Wankhede wrote:
> >>> Add migration support for VFIO device
> >>>
> >>> Th
On 6/21/2019 2:16 PM, Yan Zhao wrote:
> On Fri, Jun 21, 2019 at 04:02:50PM +0800, Kirti Wankhede wrote:
>>
>>
>> On 6/21/2019 6:54 AM, Yan Zhao wrote:
>>> On Fri, Jun 21, 2019 at 08:25:18AM +0800, Yan Zhao wrote:
On Thu, Jun 20, 2019 at 10:37:28PM +0800, Kirti Wankhede wrote:
> Add migr
21.06.2019 4:52, zhenwei pi wrote:
> On 6/20/19 10:03 PM, Eric Blake wrote:
>
>> On 6/20/19 3:54 AM, zhenwei pi wrote:
>>> Set/Clear block size histograms through new command
>>> x-block-size-histogram-set and show new statistics in
>>> query-blockstats results.
>>>
>> I'm guessing this is modeled
Hot-unplugging a PHB with a VFIO device connected to it crashes QEMU:
-device spapr-pci-host-bridge,index=1,id=phb1 \
-device vfio-pci,host=0034:01:00.3,id=vfio0
(qemu) device_del phb1
[ 357.207183] iommu: Removing device 0001:00:00.0 from group 1
[ 360.375523] rpadlpar_io: slot PHB 1 removed
q
Sebastien Boeuf pointed out that libvhost-user
doesn't advertise VHOST_USER_PROTOCOL_F_MQ. Today this prevents vhost-user-net
multiqueue from working.
In virtio-fs we also want to support multiqueue so I'm sending patches to add
this. It's free to advertise VHOST_USER_PROTOCOL_F_MQ for all devi
The VhostUserMsg request is reused as the reply by message processing
functions. This is risky since request fields may corrupt the reply if
the vhost-user message handler function forgets to re-initialize them.
Changing this practice would be very invasive but we can introduce a
helper function
Currently libvhost-user is hardcoded to at most 8 virtqueues. The
device backend should decide the number of virtqueues, not
libvhost-user. This is important for multiqueue device backends where
the guest driver needs an accurate number of virtqueues.
This change breaks libvhost-user and libvhos
Existing vhost-user device backends, including vhost-user-scsi and
vhost-user-blk, support multiqueue but libvhost-user currently does not
advertise this.
VHOST_USER_PROTOCOL_F_MQ enables the VHOST_USER_GET_QUEUE_NUM request
needed for a vhost-user master to query the number of queues. For
exampl
The "Multiple queue support" section makes references to vhost-user-net
"queue pairs". This is confusing for two reasons:
1. This actually applies to all device types, not just vhost-user-net.
2. VHOST_USER_GET_QUEUE_NUM returns the number of virtqueues, not the
number of queue pairs.
Reword t
20.06.2019 11:54, zhenwei pi wrote:
> Rename struct BlockLatencyHistogram to BlockHistogram, and rename
> related functions name.
> make this struct and functions be common, they can be used widely.
Hmm, we can go further, and make it just Histogram and move to separate file,
as there is nothing a
20.06.2019 11:54, zhenwei pi wrote:
> Introduce block size histogram statics for block devices.
>
> For read/write/flush operation type, the block size region
> [0, +inf) is divided into subregions by several points.
> It works like block latency histogram.
>
> Signed-off-by: zhenwei pi
> ---
>
Patchew URL:
https://patchew.org/QEMU/156110523748.25431.9310430853468653085.stgit@pasha-Precision-3630-Tower/
Hi,
This series seems to have some coding style problems. See output below for
more information:
Subject: [Qemu-devel] [PATCH for-4.1 00/24] Fix record/replay and add reverse
debugg
From: Aleksandar Markovic
hw/mips/gt64xxx_pci.c is used for Malta only, so it is logical to
place this file in Malta board section of the MAINTAINERS file.
Signed-off-by: Aleksandar Markovic
Reviewed-by: Philippe Mathieu-Daudé
Reviewed-by: Aleksandar Rikalo
Message-Id: <1561037595-14413-2-git
From: Aleksandar Markovic
Eliminate duplicate MIPS disassembler-related items in the
MAINTAINERS file, and use wildcards to shorten the list of
involved files.
Signed-off-by: Aleksandar Markovic
Reviewed-by: Aleksandar Rikalo
Message-Id: <1561037595-14413-3-git-send-email-aleksandar.marko...@r
From: Aleksandar Markovic
The following changes since commit 33d609990621dea6c7d056c86f707b8811320ac1:
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
(2019-06-18 17:00:52 +0100)
are available in the git repository at:
https://github.com/AMarkovic/qemu tags/mip
From: Aleksandar Markovic
Remove if-else-switch-case-arms-related checkpatch errors.
Signed-off-by: Aleksandar Markovic
Reviewed-by: Aleksandar Rikalo
Reviewed-by: Philippe Mathieu-Daudé
Tested-by: Philippe Mathieu-Daudé
Message-Id: <1561037595-14413-5-git-send-email-aleksandar.marko...@rt-r
From: Aleksandar Markovic
Fix emulation of ILVEV. on big endian host by applying
mapping of data element indexes from one endian to another.
Signed-off-by: Aleksandar Markovic
Reviewed-by: Aleksandar Rikalo
Message-Id: <1561038349-17105-2-git-send-email-aleksandar.marko...@rt-rk.com>
---
targ
From: Aleksandar Markovic
Add tests for cases when destination register is the same as one
of source registers.
Signed-off-by: Aleksandar Markovic
Reviewed-by: Aleksandar Rikalo
Message-Id: <1561031359-6727-3-git-send-email-aleksandar.marko...@rt-rk.com>
---
tests/tcg/mips/include/wrappers_ms
From: Aleksandar Markovic
Remove some space-related checkpatch warning.
Signed-off-by: Aleksandar Markovic
Reviewed-by: Aleksandar Rikalo
Reviewed-by: Philippe Mathieu-Daudé
Tested-by: Philippe Mathieu-Daudé
Message-Id: <1561037595-14413-4-git-send-email-aleksandar.marko...@rt-rk.com>
---
t
From: Aleksandar Markovic
Fix emulation of ILVL. on big endian host by applying
mapping of data element indexes from one endian to another.
Signed-off-by: Aleksandar Markovic
Reviewed-by: Aleksandar Rikalo
Message-Id: <1561038349-17105-4-git-send-email-aleksandar.marko...@rt-rk.com>
---
targe
From: Aleksandar Markovic
Fix emulation of ILVOD. on big endian host by applying
mapping of data element indexes from one endian to another.
Signed-off-by: Aleksandar Markovic
Reviewed-by: Aleksandar Rikalo
Message-Id: <1561038349-17105-3-git-send-email-aleksandar.marko...@rt-rk.com>
---
targ
From: Aleksandar Markovic
Fix emulation of ILVR. on big endian host by applying
mapping of data element indexes from one endian to another.
Signed-off-by: Aleksandar Markovic
Reviewed-by: Aleksandar Rikalo
Message-Id: <1561038349-17105-5-git-send-email-aleksandar.marko...@rt-rk.com>
---
targe
21.06.2019 12:16, Kevin Wolf wrote:
> Am 09.04.2019 um 12:01 hat Kevin Wolf geschrieben:
>> Am 02.04.2019 um 10:35 hat Denis Plotnikov geschrieben:
>>> On 13.03.2019 19:04, Kevin Wolf wrote:
Am 14.12.2018 um 12:54 hat Denis Plotnikov geschrieben:
> On 13.12.2018 15:20, Kevin Wolf wrote:
>>
On Thu, 20 Jun 2019 at 23:23, Wainer dos Santos Moschetta
wrote:
> I came across this when running the acceptance tests in an aarch64 host.
> The arch-independent tests fail because, in general, they don't set a
> machine type. In order to avoid treating arm targets as special cases
> on avocado_q
On Fri, Jun 21, 2019 at 05:22:37PM +0800, Kirti Wankhede wrote:
>
>
> On 6/21/2019 2:16 PM, Yan Zhao wrote:
> > On Fri, Jun 21, 2019 at 04:02:50PM +0800, Kirti Wankhede wrote:
> >>
> >>
> >> On 6/21/2019 6:54 AM, Yan Zhao wrote:
> >>> On Fri, Jun 21, 2019 at 08:25:18AM +0800, Yan Zhao wrote:
> >>
Hi,
Changes in v3:
- two patches queued for a pull requests[1]:
xen: Drop includes of xen/hvm/params.h
xen: Avoid VLA
- the two others patchs has changed, to keep the headers identical (nearly;
at least the header guard isn't changed anymore)
Fix the build in osstest and some cleanup
F
A Xen public header have been imported into QEMU (by
f65eadb639 "xen: import ring.h from xen"), but there are other header
that depends on ring.h which come from the system when building QEMU.
This patch resolves the issue of having headers from the system
importing a different copie of ring.h.
T
This reverts changes to include/hw/xen/io/ring.h from commit
37677d7db39a3c250ad661d00fb7c3b59d047b1f.
Following 37677d7db3 "Clean up a few header guard symbols", QEMU start
to fail to build:
In file included from ~/xen/tools/../tools/include/xen/io/blkif.h:31:0,
from ~/xen/tools
Hi Bastian,
allright thank you. A fix is already on the way.
Best regards,
Andreas
> -Ursprüngliche Nachricht-
> Von: Bastian Koppelmann
> Gesendet: Mittwoch, 19. Juni 2019 14:25
> An: David Brenken ; qemu-devel@nongnu.org
> Cc: Biermanski, Lars (EFS-GH3) ; Hofstetter,
> Georg (EFS-GH
On Fri, Jun 21, 2019 at 11:54:40AM +0100, Anthony PERARD wrote:
> This reverts changes to include/hw/xen/io/ring.h from commit
> 37677d7db39a3c250ad661d00fb7c3b59d047b1f.
>
> Following 37677d7db3 "Clean up a few header guard symbols", QEMU start
> to fail to build:
>
> In file included from ~/xen
Optimization of altivec instructions vsl and vsr(Vector Shift Left/Rigt).
Perform shift operation (left and right respectively) on 128 bit value of
register vA by value specified in bits 125-127 of register vB. Lowest 3
bits in each byte element of register vB must be identical or result is
undefin
Optimize Altivec instruction vclzw (Vector Count Leading Zeros Word).
This instruction counts the number of leading zeros of each word element
in source register and places result in the appropriate word element of
destination register.
Counting is to be performed in four iterations of for loop(on
On Wed, 19 Jun 2019 15:05:25 -0400
Eric Farman wrote:
> On 6/13/19 5:25 AM, Cornelia Huck wrote:
> > A vfio-ccw device may provide an async command subregion for
> > issuing halt/clear subchannel requests. If it is present, use
> > it for sending halt/clear request to the device; if not, fall
> >
Optimize altivec instruction vpkpx (Vector Pack Pixel).
Rearranges 8 pixels coded in 6-5-5 pattern (4 from each source register)
into contigous array of bits in the destination register.
In each iteration of outer loop, the instruction is to be done with
the 6-5-5 pack for 2 pixels of each doublew
Adding simple macro that is calling tcg implementation of appropriate
instruction if altivec support is active.
Optimization of altivec instruction lvsl (Load Vector for Shift Left).
Place bytes sh:sh+15 of value 0x00 || 0x01 || 0x02 || ... || 0x1E || 0x1F
in destination register. Sh is calculated
Since I found this two instructions implemented with tcg, I refactored
them so they are consistent with other similar implementations that
I introduced in this patch.
Also, a new dual macro GEN_VXFORM_TRANS_DUAL is added. This macro is
used if one instruction is realized with direct translation, a
Optimize altivec instruction vgbbd (Vector Gather Bits by Bytes by Doubleword)
All ith bits (i in range 1 to 8) of each byte of doubleword element in
source register are concatenated and placed into ith byte of appropriate
doubleword element in destination register.
Following solution is done for
Optimize emulation of ten Altivec instructions: lvsl, lvsr, vsl, vsr, vpkpx,
vgbbd, vclzb, vclzh, vclzw and vclzd.
This series buils up on and complements recent work of Thomas Murta, Mark
Cave-Ayland and Richard Henderson in the same area. It is based on devising TCG
translation implementation fo
Optimize Altivec instruction vclzh (Vector Count Leading Zeros Halfword).
This instruction counts the number of leading zeros of each halfword element
in source register and places result in the appropriate halfword element of
destination register.
In each iteration of outer for loop count operati
Optimize Altivec instruction vclzd (Vector Count Leading Zeros Doubleword).
This instruction counts the number of leading zeros of each doubleword element
in source register and places result in the appropriate doubleword element of
destination register.
Using tcg-s count leading zeros instruction
On Fri, Jun 21, 2019 at 11:54:41AM +0100, Anthony PERARD wrote:
> A Xen public header have been imported into QEMU (by
> f65eadb639 "xen: import ring.h from xen"), but there are other header
> that depends on ring.h which come from the system when building QEMU.
>
> This patch resolves the issue o
While indeed we do not want to have
return (a);
it is less clear that this applies to
return (a &&
b);
Some editors indent more nicely if you have parentheses, and some people's
eyes may appreciate that as well.
Signed-off-by: Paolo Bonzini
---
scripts/checkpatch.pl | 3 +
From: Vitaly Kuznetsov
KVM now supports reporting supported Hyper-V features through CPUID
(KVM_GET_SUPPORTED_HV_CPUID ioctl). Going forward, this is going to be
the only way to announce new functionality and this has already happened
with Direct Mode stimers.
While we could just support KVM_GET
The following changes since commit 33d609990621dea6c7d056c86f707b8811320ac1:
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
(2019-06-18 17:00:52 +0100)
are available in the git repository at:
git://github.com/bonzini/qemu.git tags/for-upstream
for you to fetch
From: Vitaly Kuznetsov
Representing Hyper-V properties as bits will allow us to check features
and dependencies between them in a natural way.
Suggested-by: Roman Kagan
Signed-off-by: Vitaly Kuznetsov
Message-Id: <20190517141924.19024-2-vkuzn...@redhat.com>
Signed-off-by: Paolo Bonzini
---
h
20.06.2019 4:03, John Snow wrote:
> We don't need or want a new sync mode for simple differences in
> semantics. Create a new mode simply named "BITMAP" that is designed to
> make use of the new Bitmap Sync Mode field.
>
> Because the only bitmap mode is 'conditional', this adds no new
> function
From: Colin Xu
QEMU tracks whether a vcpu is halted using CPUState::halted. E.g.,
after initialization or reset, halted is 0 for the BSP (vcpu 0)
and 1 for the APs (vcpu 1, 2, ...). A halted vcpu should not be
handed to the hypervisor to run (e.g. hax_vcpu_run()).
Under HAXM, Android Emulator so
From: Vitaly Kuznetsov
Currently, there is no doc describing hv-* CPU flags, people are
encouraged to get the information from Microsoft Hyper-V Top Level
Functional specification (TLFS). There is, however, a bit of QEMU
specifics.
Signed-off-by: Vitaly Kuznetsov
Message-Id: <20190517141924.190
From: Yury Kotov
Signed-off-by: Yury Kotov
Message-Id: <20190607090830.18807-1-yury-ko...@yandex-team.ru>
Signed-off-by: Paolo Bonzini
---
accel/kvm/kvm-all.c | 12
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index b0c4be
From: Liran Alon
Kernel commit c4f55198c7c2 ("kvm: x86: Introduce KVM_CAP_EXCEPTION_PAYLOAD")
introduced a new KVM capability which allows userspace to correctly
distinguish between pending and injected exceptions.
This distinguish is important in case of nested virtualization scenarios
because
From: Liran Alon
If userspace (QEMU) debug guest, when #DB is raised in guest and
intercepted by KVM, KVM forwards information on #DB to userspace
instead of injecting #DB to guest.
While doing so, KVM don't update vCPU DR6 but instead report the #DB DR6
value to userspace for further handling.
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