This patch adds the ability to query for CPU
features. Currently it is limited to the architecture that
support feature probing (arm, i386, and s390x).
Ex:
athlon features:
3dnow=
3dnowext=
3dnowprefetch=
...
Suggested-by: Peter Maydell
Resolves:
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1480
Signed-off-by: Dinah Baum
Signed-off-by: Dinah Baum
---
cpu.c| 41
include/qapi/qmp/qdict.h | 1 +
qemu-options.hx | 7 ---
qobject/qdict.c | 5
Signed-off-by: Dinah Baum
---
qapi/machine-target.json | 78 +---
qapi/machine.json| 77 +++
2 files changed, 78 insertions(+), 77 deletions(-)
diff --git a/qapi/machine-target.json b/qapi/machine-target.json
index
On 18/07/2023 18:46, Jason Gunthorpe wrote:
On Sun, Jul 16, 2023 at 11:15:35AM +0300, Avihai Horon wrote:
Hi all,
The first patch in this series adds a small optimization to VFIO
migration by moving the STOP_COPY->STOP transition to
vfio_save_cleanup(). Testing with a ConnectX-7 VFIO device
On 27/07/2023 19:23, Cédric Le Goater wrote:
External email: Use caution opening links or attachments
On 7/16/23 10:15, Avihai Horon wrote:
Add pre VM state change callback to struct VMChangeStateEntry.
This sentence could be the subject.
Sure.
The pre VM state change callback is
On 7/29/23 12:32, Peter Maydell wrote:
On Fri, 28 Jul 2023 at 21:47, Daniel Henrique Barboza
wrote:
Use g_free(table[i]) instead of free(table[i]) to comply with QEMU low
level memory management guidelines.
Signed-off-by: Daniel Henrique Barboza
---
target/ppc/translate.c | 2 +-
1
On Thu Jul 27, 2023 at 10:26 PM AEST, Cédric Le Goater wrote:
> Hello Nick,
>
> On 7/26/23 20:22, Nicholas Piggin wrote:
> > When writing a value to the decrementer that raises an exception, the
> > irq is raised, but the value is not stored so the store doesn't appear
> > to have changed the
According Intel's High Definition Audio Specification (Revision 1.0a,
Section 7.3.4.10: Amplifier Capabilities), the amplifier gain levels
should be evenly spaced in dB, i.e. using a log scale instead of linear.
Here, the hda-codec reports amplifier levels from 0 to -48 dB at 1-dB
steps matching
From: Hyman Huang(黄勇)
Signed-off-by: Markus Armbruster
Signed-off-by: Hyman Huang(黄勇)
---
qapi/migration.json | 13 +
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/qapi/migration.json b/qapi/migration.json
index a74ade4d72..62ab151da2 100644
---
Hi, please review the version 3 of the series, thanks.
V3:
- craft the commit message of
"Add section for migration dirty limit and dirty page rate",
and put the section after section "Migration", suggested
by Markus.
V2:
- split the first commit in v1 into 2
- add commit message of
On 7/29/23 12:35, Peter Maydell wrote:
On Fri, 28 Jul 2023 at 21:57, Daniel Henrique Barboza
wrote:
Here's some trivial changes following Peter's call to arms against
free() and friends in gitlab issue #1798 in an attempt to enforce
our memory management guidelines [1].
To clarify, this
On 7/30/23 20:02, Richard Henderson wrote:
On 7/30/23 11:01, Richard Henderson wrote:
On 7/30/23 10:56, Helge Deller wrote:
+++ b/accel/tcg/translator.c
@@ -124,8 +124,13 @@ bool translator_use_goto_tb(DisasContextBase *db, vaddr
dest)
return false;
}
+#ifndef
Until v2.07s, the VRMA page size (L||LP) was encoded in LPCR[VRMASD].
In v3.0 that moved to the partition table PS field.
The powernv machine can now run KVM HPT guests on POWER9/10 CPUs with
this fix and the patch to add ASDR.
Fixes: 3367c62f522b ("target/ppc: Support for POWER9 native hash")
On 7/30/23 11:40, Nicholas Piggin wrote:
On Thu Jul 27, 2023 at 10:26 PM AEST, Cédric Le Goater wrote:
Hello Nick,
On 7/26/23 20:22, Nicholas Piggin wrote:
When writing a value to the decrementer that raises an exception, the
irq is raised, but the value is not stored so the store doesn't
From: Hyman Huang(黄勇)
I've built interests in dirty limit and dirty page rate
features and also have been working on projects related
to this subsystem.
Add a section to the MAINTAINERS file for migration
dirty limit and dirty page rate.
Add myself as a maintainer for this subsystem so that I
The dirty-limit migration test involves many passes
and takes about 1 minute on average, so put it in
the slow mode of migration-test. Inspired by Peter.
V2:
- put the dirty-limit migration test in slow mode and
enrich the test case comment
Dirty-limit feature was introduced in 8.1, and the
On 7/29/23 14:08, Stafford Horne wrote:
The architecture specification calls for the EPCR to be set to "Address
of next not executed instruction" when there is a floating point
exception (FPE). This was not being done, so fix it by using the same
method as syscall. Note, this may need a lot
On 7/30/23 09:30, Helge Deller wrote:
On hppa the Instruction Address Offset Queue (IAOQ) registers specifies
the next to-be-executed instructions addresses. Each generated TB writes those
registers at least once, so those registers are used heavily in generated
code.
Looking at the generated
Only architectures that implement the command will return
results, others will return an error message as before.
Signed-off-by: Dinah Baum
---
cpu.c| 20 +++
include/exec/cpu-common.h| 7
qapi/machine-target.json | 60
On Sun, 30 Jul 2023 at 08:21, Dinah Baum wrote:
>
> This patch adds the ability to query for CPU
> features. Currently it is limited to the architecture that
> support feature probing (arm, i386, and s390x).
>
> Ex:
> athlon features:
> 3dnow=
> 3dnowext=
> 3dnowprefetch=
> ...
>
>
On hppa the Instruction Address Offset Queue (IAOQ) registers specifies
the next to-be-executed instructions addresses. Each generated TB writes those
registers at least once, so those registers are used heavily in generated
code.
Looking at the generated assembly, for a x86-64 host this code
to
From: Hyman Huang(黄勇)
Reformat the dirty-limit migration doc comments to conform
to current conventions as commit a937b6aa739 (qapi: Reformat
doc comments to conform to current conventions).
Signed-off-by: Markus Armbruster
Signed-off-by: Hyman Huang(黄勇)
---
qapi/migration.json | 69
From: Hyman Huang(黄勇)
Dirty ring size configuration is not supported by guestperf tool.
Introduce dirty-ring-size (ranges in [1024, 65536]) option so
developers can play with dirty-ring and dirty-limit feature easier.
To set dirty ring size with 4096 during migration test:
$
On 7/30/23 11:01, Richard Henderson wrote:
On 7/30/23 10:56, Helge Deller wrote:
+++ b/accel/tcg/translator.c
@@ -124,8 +124,13 @@ bool translator_use_goto_tb(DisasContextBase *db, vaddr
dest)
return false;
}
+#ifndef CONFIG_USER_ONLY
/* Check for the dest on the same
On 7/30/23 10:56, Helge Deller wrote:
+++ b/accel/tcg/translator.c
@@ -124,8 +124,13 @@ bool translator_use_goto_tb(DisasContextBase *db, vaddr
dest)
return false;
}
+#ifndef CONFIG_USER_ONLY
/* Check for the dest on the same page as the start of the TB. */
return
I'm quite unclear about translator_use_goto_tb() for qemu-user
emulation(and in general).
Based on the function name, the function translator_use_goto_tb() shall
help to decide if a program should use goto_tb() and exit_tb() to jump
to the next instruction.
Currently, if the destination is
On Wed Jul 26, 2023 at 4:35 PM AEST, Joel Stanley wrote:
> On Wed, 12 Jul 2023 at 02:12, Nicholas Piggin wrote:
> >
> > On Tue Jul 11, 2023 at 9:03 PM AEST, Matheus Tavares Bernardino wrote:
> > > > Nicholas Piggin wrote:
> > > >
> > > > diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c
> > > >
On 7/16/23 10:15, Avihai Horon wrote:
Changing the device state from STOP_COPY to STOP can take time as the
device may need to free resources and do other operations as part of the
transition. Currently, this is done in vfio_save_complete_precopy() and
therefore it is counted in the migration
[ ... ]
+ * qemu_add_vm_change_state_handler_prio_full:
qemu_add_vm_change_state_handler_prio_all() may be. I don't have much better
but 'full' doesn't sound right. minor.
I followed the GLib naming convention.
For example, g_tree_new and g_tree_new_full, or g_hash_table_new and
From: Hyman Huang(黄勇)
Add migration dirty-limit capability test if kernel support
dirty ring.
Migration dirty-limit capability introduce dirty limit
capability, two parameters: x-vcpu-dirty-limit-period and
vcpu-dirty-limit are introduced to implement the live
migration with dirty limit.
The
From: Hyman Huang(黄勇)
Currently, guestperf does not cover the dirty-limit
migration, support this feature.
Note that dirty-limit requires 'dirty-ring-size' set.
To enable dirty-limit, setting x-vcpu-dirty-limit-period
as 500ms and x-vcpu-dirty-limit as 10MB/s:
$ ./tests/migration/guestperf.py
On 7/30/23 13:18, Nicholas Piggin wrote:
Until v2.07s, the VRMA page size (L||LP) was encoded in LPCR[VRMASD].
In v3.0 that moved to the partition table PS field.
The powernv machine can now run KVM HPT guests on POWER9/10 CPUs with
this fix and the patch to add ASDR.
Fixes: 3367c62f522b
Signed-off-by: Stefan Weil
---
This patch was triggered by a spelling check for the generated
QEMU documentation using codespell. It does not try to fix all
typos which still exist in the QEMU code, but has a focus on
those required to fix the documentation. Nevertheless some code
comments with
From: Klaus Jensen
Use the stl/ldl pci dma api for writing/reading doorbells. This removes
the explicit endian conversions.
Reviewed-by: Philippe Mathieu-Daudé
Reviewed-by: Cédric Le Goater
Tested-by: Cédric Le Goater
Reviewed-by: Thomas Huth
Signed-off-by: Klaus Jensen
---
hw/nvme/ctrl.c
From: Klaus Jensen
Hi,
This should also fix coverity cid 1518067 and 1518066.
The following changes since commit ccb86f079a9e4d94918086a9df18c1844347aff8:
Merge tag 'pull-nbd-2023-07-28' of https://repo.or.cz/qemu/ericb into staging
(2023-07-28 09:56:57 -0700)
are available in the Git
>> On 2023/06/12 12:42, Viktor Prutyanov wrote:
>>
Prcb may be set to 0 for some CPUs if the dump was taken before they
start. The dump may still contain valuable information for started CPUs
so don't abandon conversion in such a case.
Signed-off-by: Akihiko Odaki
On 7/30/23 10:56, Helge Deller wrote:
I'm quite unclear about translator_use_goto_tb() for qemu-user
emulation(and in general).
Based on the function name, the function translator_use_goto_tb() shall
help to decide if a program should use goto_tb() and exit_tb() to jump
to the next
Hi Alex,
> On July 28, 2023 11:41 PM, Alex Williamson wrote:
>
> On Fri, 28 Jul 2023 10:27:17 +0200
> Cédric Le Goater wrote:
>
> > On 7/28/23 10:09, Liu, Jing2 wrote:
> > > Hi Alex,
> > >
> > > Thanks very much for reviewing the patches.
> > >
> > >> On July 28, 2023 1:25 AM, Alex Williamson
Runs into core dump on arm64 and the backtrace extracted from the
core dump is shown as below. It's caused by accessing @kvm_state which
isn't initialized at that point due to commit 176d073029 ("hw/arm/virt:
Use machine_memory_devices_init()"), where the machine's memory region
is added ealier
On 7/27/23 19:00, Igor Mammedov wrote:
On Thu, 27 Jul 2023 15:16:18 +1000
Gavin Shan wrote:
On 7/27/23 09:08, Richard Henderson wrote:
On 7/25/23 17:32, Gavin Shan wrote:
-static const char *q800_machine_valid_cpu_types[] = {
+static const char * const q800_machine_valid_cpu_types[] = {
On 7/30/23 22:03, Richard Henderson wrote:
On 7/30/23 10:56, Helge Deller wrote:
I'm quite unclear about translator_use_goto_tb() for qemu-user
emulation(and in general).
Based on the function name, the function translator_use_goto_tb() shall
help to decide if a program should use
> On Jul 25, 2023, at 6:42 AM, Li Feng wrote:
>
> When the vhost-user reconnect to the backend, the notifer should be
> cleanup. Otherwise, the fd resource will be exhausted.
>
> Fixes: f9a09ca3ea ("vhost: add support for configure interrupt")
>
> Signed-off-by: Li Feng
Reviewed-by:
> On Jul 28, 2023, at 3:48 AM, Li Feng wrote:
>
> Thanks for your reply.
>
>> 2023年7月28日 上午5:21，Raphael Norwitz 写道：
>>
>>
>>
>>> On Jul 25, 2023, at 6:19 AM, Li Feng wrote:
>>>
>>> Thanks for your comments.
>>>
2023年7月25日 上午1:21，Raphael Norwitz 写道：
Very excited to see
Hi
On Sun, Jul 30, 2023 at 5:52 PM Yuanqing Li wrote:
>
> According Intel's High Definition Audio Specification (Revision 1.0a,
> Section 7.3.4.10: Amplifier Capabilities), the amplifier gain levels
> should be evenly spaced in dB, i.e. using a log scale instead of linear.
>
> Here, the
I don’t think we should be changing any vhost-scsi-common code here. I’d rather
implement wrappers around vhost_user_scsi_start/stop() around
vhost_user_scsi_common_start/stop() and check started_vu there.
Otherwise I think this is looking good.
Glad to see you caught the
> On Jul 25, 2023, at 6:42 AM, Li Feng wrote:
>
> Multile devices need this macro, move it to a common header.
>
> Signed-off-by: Li Feng
Reviewed-by: Raphael Norwitz
> ---
> hw/block/vhost-user-blk.c | 4 +---
> hw/virtio/vhost-user-gpio.c | 3 +--
> include/hw/virtio/vhost.h | 2 ++
>
> On Jul 28, 2023, at 3:49 AM, Li Feng wrote:
>
>
>
>> 2023年7月28日 下午2:04，Michael S. Tsirkin 写道：
>>
>> On Tue, Jul 25, 2023 at 06:42:45PM +0800, Li Feng wrote:
>>> Get_inflight_fd is sent only once. When reconnecting to the backend,
>>> qemu sent set_inflight_fd to the backend.
>>
>> I
riscv virt platform's memory started at 0x8000 and
straddled the 4GiB boundary. Curiously enough, this choice
of a memory layout will prevent from launching a VM with
a bit more than 2000MiB and PCIe pass-thru on an x86 host, due
to identity mapping requirements for the MSI doorbell on x86,
Hi C.
> On July 28, 2023 4:44 PM, Cédric Le Goater wrote:
>
> [ ... ]
>
> > Sorry I didn't quite understand "info.flags be tested against
> VFIO_IRQ_INFO_NORESIZE".
> > I saw kernel < 6.4 simply added NORESIZE to info.flags and latest kernel
> > adds
> if has_dyn_msix.
> > Would you please
On 28/07/2023 18.05, Chris Laplante wrote:
Exercise the DETECT mechanism of the GPIO peripheral.
Signed-off-by: Chris Laplante
Reviewed-by: Peter Maydell
---
tests/qtest/microbit-test.c | 42 +
1 file changed, 42 insertions(+)
diff --git
On 7/28/23 00:27, Richard Henderson wrote:
On 7/26/23 22:16, Gavin Shan wrote:
On 7/27/23 09:08, Richard Henderson wrote:
On 7/25/23 17:32, Gavin Shan wrote:
-static const char *q800_machine_valid_cpu_types[] = {
+static const char * const q800_machine_valid_cpu_types[] = {
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