06.08.2023 06:36, Richard Henderson wrote:
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
-mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
-PROT_READ|PROT_WRITE,
-MAP_ANON|MAP_PRIVATE,
On Sat, Aug 5, 2023 at 2:05 AM Markus Armbruster wrote:
> Andrei Gudkov writes:
>
> > Introduces alternative argument calc-time-ms, which is the
> > the same as calc-time but accepts millisecond value.
> > Millisecond granularity allows to make predictions whether
> > migration will succeed or n
On Fri, Aug 4, 2023 at 11:03 PM Andrei Gudkov
wrote:
> Introduces alternative argument calc-time-ms, which is the
> the same as calc-time but accepts millisecond value.
> Millisecond granularity allows to make predictions whether
> migration will succeed or not. To do this, calculate dirty
> rate
This variable is unused.
Reviewed-by: Helge Deller
Reviewed-by: Akihiko Odaki
Signed-off-by: Richard Henderson
---
linux-user/user-mmap.h | 1 -
linux-user/mmap.c | 2 --
2 files changed, 3 deletions(-)
diff --git a/linux-user/user-mmap.h b/linux-user/user-mmap.h
index 3fc986f92f..7265c2
Copy each guest kernel's default value, then bound it
against reserved_va or the host address space.
Tested-by: Helge Deller
Reviewed-by: Helge Deller
Signed-off-by: Richard Henderson
---
linux-user/aarch64/target_mman.h | 3 +++
linux-user/alpha/target_mman.h | 3 +++
linux-user/a
From: Akihiko Odaki
do_brk() minimizes calls into target_mmap() by aligning the address
with host page size, which is potentially larger than the target page
size. However, the current implementation of this optimization has two
bugs:
- The start of brk is rounded up with the host page size whil
From: Akihiko Odaki
Passing MAP_FIXED_NOREPLACE to host will fail for reserved_va because
the address space is reserved with mmap. Replace it with MAP_FIXED
in that case.
Signed-off-by: Akihiko Odaki
Message-Id: <20230802071754.14876-2-akihiko.od...@daynix.com>
[rth: Expand inline commentary.]
If the address and size are aligned, send larger chunks
to the memory subsystem. This will be required to make
more use of these helpers.
Reviewed-by: Philippe Mathieu-Daudé
Signed-off-by: Richard Henderson
---
accel/tcg/cputlb.c | 76 +-
1 file chan
Remove TARGET_ELF_EXEC_PAGESIZE, and 3 other TARGET_ELF_PAGE* macros
based off of that. Rely on target_mmap to handle guest vs host page
size mismatch.
Tested-by: Helge Deller
Reviewed-by: Helge Deller
Reviewed-by: Akihiko Odaki
Signed-off-by: Richard Henderson
---
linux-user/elfload.c | 17
Provide default values that are as close as possible to the
values used by the guest's kernel.
Tested-by: Helge Deller
Reviewed-by: Helge Deller
Reviewed-by: Akihiko Odaki
Signed-off-by: Richard Henderson
---
linux-user/aarch64/target_mman.h | 10 ++
linux-user/alpha/target_mman.h
Replace MMULookupPageData* with CPUTLBEntryFull, addr, size.
Move QEMU_IOTHREAD_LOCK_GUARD to the caller.
This simplifies the usage from do_ld16_beN and do_st16_leN, where
we weren't locking the entire operation, and required hoop jumping
for passing addr and size.
Reviewed-by: Philippe Mathieu-D
Rely on target_mmap to handle guest vs host page size mismatch.
Tested-by: Helge Deller
Reviewed-by: Helge Deller
Reviewed-by: Akihiko Odaki
Signed-off-by: Richard Henderson
---
linux-user/elfload.c | 54 +++-
1 file changed, 23 insertions(+), 31 deleti
The heap starts at "brk" not "start_brk". With this fixed,
image_info.start_brk is unused and may be removed.
Tested-by: Helge Deller
Reviewed-by: Helge Deller
Reviewed-by: Akihiko Odaki
Signed-off-by: Richard Henderson
---
linux-user/qemu.h | 1 -
linux-user/flatload.c | 2 +-
linux-use
The following changes since commit 6db03ccc7f4ca33c99debaac290066f4500a2dfb:
Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
(2023-08-04 14:47:00 -0700)
are available in the Git repository at:
https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20230805
From: Mikhail Tyutin
Apply save_iotlb_data() to io_readx() as well as to io_writex().
This fixes SEGFAULT on qemu_plugin_hwaddr_phys_addr() call plugins
for addresses inside of MMIO region.
Signed-off-by: Dmitriy Solovev
Signed-off-by: Mikhail Tyutin
Reviewed-by: Richard Henderson
Message-Id:
From: Akihiko Odaki
Later the returned value is compared with -1, and negated errno is not
expected.
Fixes: 00faf08c95 ("linux-user: Don't use MAP_FIXED in do_brk()")
Reviewed-by: Helge Deller
Signed-off-by: Akihiko Odaki
Message-Id: <20230802071754.14876-4-akihiko.od...@daynix.com>
Signed-off
From: Helge Deller
While we attempt to load a ET_DYN executable far away from
TASK_UNMAPPED_BASE, we are not completely in control of the
address space layout. If the interpreter lands close to
the executable, leaving insufficient heap space, move brk.
Tested-by: Helge Deller
Signed-off-by: He
This variable is unused.
Signed-off-by: Richard Henderson
---
bsd-user/qemu.h | 1 -
bsd-user/mmap.c | 2 --
2 files changed, 3 deletions(-)
diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h
index edf9602f9b..8f2d6a3c78 100644
--- a/bsd-user/qemu.h
+++ b/bsd-user/qemu.h
@@ -232,7 +232,6 @@ abi_lon
Use this as extra protection for the guest mapping over
any qemu host mappings.
Tested-by: Helge Deller
Reviewed-by: Helge Deller
Reviewed-by: Akihiko Odaki
Signed-off-by: Richard Henderson
---
linux-user/elfload.c | 9 ++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/l
Follow the lead of the linux kernel in fs/binfmt_elf.c,
in which an ET_DYN executable which uses an interpreter
(usually a PIE executable) is loaded away from where the
interpreter itself will be loaded.
Tested-by: Helge Deller
Reviewed-by: Helge Deller
Reviewed-by: Akihiko Odaki
Signed-off-by:
If p_filesz == 0, then vaddr_ef == vaddr. We can reuse the
code in zero_bss rather than incompletely duplicating it in
load_elf_image.
Tested-by: Helge Deller
Reviewed-by: Helge Deller
Reviewed-by: Akihiko Odaki
Signed-off-by: Richard Henderson
---
linux-user/elfload.c | 27 +++--
From: Akihiko Odaki
The man page states:
> Note that older kernels which do not recognize the MAP_FIXED_NOREPLACE
> flag will typically (upon detecting a collision with a preexisting
> mapping) fall back to a “non-MAP_FIXED” type of behavior: they will
> return an address that is different from t
From: Akihiko Odaki
MAP_FIXED_NOREPLACE can ensure the mapped address is fixed without
concerning that the new mapping overwrites something else.
Signed-off-by: Akihiko Odaki
Message-Id: <20230802071754.14876-5-akihiko.od...@daynix.com>
[rth: Pass -1 as fd for MAP_ANON]
Reviewed-by: Richard Hen
In the single-page case we were issuing misaligned i/o to
the memory subsystem, which does not handle it properly.
Split such accesses via do_{ld,st}_mmio_*.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1800
Reviewed-by: Philippe Mathieu-Daudé
Signed-off-by: Richard Henderson
---
acc
From: Akihiko Odaki
Linux 6.4.7 does nothing when a value smaller than the initial brk is
specified.
Fixes: 86f04735ac ("linux-user: Fix brk() to release pages")
Reviewed-by: Helge Deller
Signed-off-by: Akihiko Odaki
Message-Id: <20230802071754.14876-6-akihiko.od...@daynix.com>
Signed-off-by:
From: Nathan Egge
Set V bit for hwcap if misa is set.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1793
Signed-off-by: Nathan Egge
Reviewed-by: Daniel Henrique Barboza
Tested-by: Daniel Henrique Barboza
Message-Id: <20230803131424.40744-1-ne...@xiph.org>
Signed-off-by: Richard Hend
Ensure that the chosen values for mmap_next_start and
task_unmapped_base are within the guest address space.
Tested-by: Helge Deller
Reviewed-by: Akihiko Odaki
Signed-off-by: Richard Henderson
---
linux-user/user-mmap.h | 18 +-
linux-user/main.c | 28 +
From: Matheus Tavares Bernardino
Previously, qemu-user would always report PID 1 to GDB. This was changed
at dc14a7a6e9 (gdbstub: Report the actual qemu-user pid, 2023-06-30),
but read_thread_id() still considers GDB packets with "no PID" as "PID
1", which is not the qemu-user PID. Fix that by pa
On 8/5/23 14:56, Michael Tokarev wrote:
30.06.2023 20:53, Richard Henderson wrote:
Ping 2.
On 6/20/23 15:26, Richard Henderson wrote:
Ping.
On 5/24/23 07:46, Richard Henderson wrote:
The beginning of the structure, with pretaddr, should be just below
16-byte alignment. Disconnect fpstate fr
30.06.2023 20:53, Richard Henderson wrote:
Ping 2.
On 6/20/23 15:26, Richard Henderson wrote:
Ping.
On 5/24/23 07:46, Richard Henderson wrote:
The beginning of the structure, with pretaddr, should be just below
16-byte alignment. Disconnect fpstate from sigframe, just like the
kernel does.
On 8/5/23 13:04, Helge Deller wrote:
On 8/5/23 21:40, Helge Deller wrote:
On 8/5/23 19:58, Richard Henderson wrote:
On 8/5/23 10:43, Helge Deller wrote:
If there were a way to change no more than two lines of code,
that would be fine. But otherwise I don't see this as being
worth making the r
On 8/5/23 21:40, Helge Deller wrote:
On 8/5/23 19:58, Richard Henderson wrote:
On 8/5/23 10:43, Helge Deller wrote:
If there were a way to change no more than two lines of code,
that would be fine. But otherwise I don't see this as being
worth making the rest of the code base any more complex.
From: Nicholas Piggin
HDEC is defined to not wake from PM state. There is a check in the HDEC
timer to avoid setting the interrupt if we are in a PM state, but no
check on PM entry to lower HDEC if it already fired. This can cause a
HDECR wake up and QEMU abort with unsupported exception in Powe
From: Hawkins Jiawei
According to VirtIO standard, "The class, command and
command-specific-data are set by the driver,
and the device sets the ack byte.
There is little it can do except issue a diagnostic
if ack is not VIRTIO_NET_OK."
Therefore, QEMU should stop sending the queued SVQ commands
From: Matt Borgerson
When CR0.TS=1, execution of x87 FPU, MMX, and some SSE instructions will
cause a Device Not Available (DNA) exception (#NM). System software uses
this exception event to lazily context switch FPU state.
Before this patch, enter_mmx helpers may be generated just before #NM
ge
From: Hawkins Jiawei
QEMU uses vhost_handle_guest_kick() to forward guest's available
buffers to the vdpa device in SVQ avail ring.
In vhost_handle_guest_kick(), a `g_autofree` `elem` is used to
iterate through the available VirtQueueElements. This `elem` is
then passed to `svq->ops->avail_handl
From: Zhenzhong Duan
When vfio realize fails, INTx isn't disabled if it has been enabled.
This may confuse host side with unhandled interrupt report.
Fixes: c5478fea27ac ("vfio/pci: Respond to KVM irqchip change notifier")
Signed-off-by: Zhenzhong Duan
Reviewed-by: Joao Martins
Reviewed-by: Cé
From: Nicholas Piggin
The ASDR register was introduced in ISA v3.0. It has not been
implemented for HPT. With HPT, ASDR is the format of the slbmte RS
operand (containing VSID), which matches the ppc_slb_t field.
Fixes: 3367c62f522b ("target/ppc: Support for POWER9 native hash")
Signed-off-by: N
From: Nicholas Piggin
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
From: Hawkins Jiawei
According to VirtIO standard, "The class, command and
command-specific-data are set by the driver,
and the device sets the ack byte.
There is little it can do except issue a diagnostic
if ack is not VIRTIO_NET_OK."
Therefore, QEMU should stop sending the queued SVQ commands
The following patches are queued for QEMU stable v8.0.4:
https://gitlab.com/qemu-project/qemu/-/commits/staging-8.0
Patch freeze is 2023-08-05, and the release is planned for 2023-08-07:
https://wiki.qemu.org/Planning/8.0
Please respond here or CC qemu-sta...@nongnu.org on any additional pa
From: Matt Borgerson
When CR0.TS=1, execution of x87 FPU, MMX, and some SSE instructions will
cause a Device Not Available (DNA) exception (#NM). System software uses
this exception event to lazily context switch FPU state.
Before this patch, enter_mmx helpers may be generated just before #NM
ge
From: Nicholas Piggin
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
On 8/5/23 19:58, Richard Henderson wrote:
On 8/5/23 10:43, Helge Deller wrote:
If there were a way to change no more than two lines of code,
that would be fine. But otherwise I don't see this as being
worth making the rest of the code base any more complex.
Ok. What about that 6-line patch be
The following patches are queued for QEMU stable v7.2.5:
https://gitlab.com/qemu-project/qemu/-/commits/staging-7.2
Patch freeze is 2023-08-05, and the release is planned for 2023-08-07:
https://wiki.qemu.org/Planning/7.2
Please respond here or CC qemu-sta...@nongnu.org on any additional pa
From: Hawkins Jiawei
According to VirtIO standard, "The class, command and
command-specific-data are set by the driver,
and the device sets the ack byte.
There is little it can do except issue a diagnostic
if ack is not VIRTIO_NET_OK."
Therefore, QEMU should stop sending the queued SVQ commands
From: Zhenzhong Duan
When vfio realize fails, INTx isn't disabled if it has been enabled.
This may confuse host side with unhandled interrupt report.
Fixes: c5478fea27ac ("vfio/pci: Respond to KVM irqchip change notifier")
Signed-off-by: Zhenzhong Duan
Reviewed-by: Joao Martins
Reviewed-by: Cé
From: Nicholas Piggin
HDEC is defined to not wake from PM state. There is a check in the HDEC
timer to avoid setting the interrupt if we are in a PM state, but no
check on PM entry to lower HDEC if it already fired. This can cause a
HDECR wake up and QEMU abort with unsupported exception in Powe
From: Nicholas Piggin
The ASDR register was introduced in ISA v3.0. It has not been
implemented for HPT. With HPT, ASDR is the format of the slbmte RS
operand (containing VSID), which matches the ppc_slb_t field.
Fixes: 3367c62f522b ("target/ppc: Support for POWER9 native hash")
Signed-off-by: N
From: Hawkins Jiawei
QEMU uses vhost_handle_guest_kick() to forward guest's available
buffers to the vdpa device in SVQ avail ring.
In vhost_handle_guest_kick(), a `g_autofree` `elem` is used to
iterate through the available VirtQueueElements. This `elem` is
then passed to `svq->ops->avail_handl
From: Hawkins Jiawei
According to VirtIO standard, "The class, command and
command-specific-data are set by the driver,
and the device sets the ack byte.
There is little it can do except issue a diagnostic
if ack is not VIRTIO_NET_OK."
Therefore, QEMU should stop sending the queued SVQ commands
Mirror the host_arch variable from meson.build, so that we
probe for the correct linux-user/include/host/ directory.
Fixes: e3e477c3bca0 ("configure: Fix cross-building for RISCV host")
Signed-off-by: Richard Henderson
---
configure | 9 -
1 file changed, 8 insertions(+), 1 deletion(-)
On 8/5/23 10:43, Helge Deller wrote:
If there were a way to change no more than two lines of code, that would be
fine. But otherwise I don't see this as being worth making the rest of the
code base any more complex.
Ok. What about that 6-line patch below for x86?
It's trivial and all what's ne
* Richard Henderson :
> On 8/5/23 09:47, Helge Deller wrote:
> > Do we want to enable such an performance optimization?
> > If so, I see two possibilities:
> >
> > a) Re-define NB_MMU_MODES per target
>
> No, we've just gotten rid of per target definitions of NB_MMU_MODES, on the
> way to being abl
On 8/4/23 13:07, Paolo Bonzini wrote:
The following changes since commit c26d005e62f4fd177dae0cd70c24cb96761edebc:
Merge tag 'hppa-linux-user-speedup-pull-request'
ofhttps://github.com/hdeller/qemu-hppa into staging (2023-08-03 18:49:45 -0700)
are available in the Git repository at:
ht
On 8/5/23 09:47, Helge Deller wrote:
Do we want to enable such an performance optimization?
If so, I see two possibilities:
a) Re-define NB_MMU_MODES per target
No, we've just gotten rid of per target definitions of NB_MMU_MODES, on the way to being
able to support multiple targets simultaneo
This is a RFC, in which I want to bring up an option on how to reduce
the generated code size by in average 6 bytes for *every* memory-access
inside the guest. This applies to nearly every guest target on a
x86 host. Other hosts may benefit too, but I didn't checked.
In include/exec/cpu-defs.h the
05.08.2023 15:51, Nathan Egge пишет:
From: "Nathan Egge"
Signed-off-by: Nathan Egge
This needs at least some meaningful subject prefix.
With the subject like it is now, it feels like the
patch is about fixing checkpatch.py script itself.
Something like:
linux-user/syscall.c: fix coding-st
Please excuse me for jijacking this thread. I was sure it is something
relevant to the issues we were dealing with, - since I remember qemu-aarch64
segfaulting with intermediate patches in this area.
For this aarch64-user segfault, my guess is that older software isn't
prepared for -cpu max.
/mj
05.08.2023 17:01, Richard Henderson wrote:
Since it was kinda trivial to bisect, I just did. And here's the
result:
commit 59b6b42cd3446862567637f3a7ab31d69c9bef51
Author: Richard Henderson
Date: Tue Jun 6 10:19:39 2023 +0100
target/arm: Enable FEAT_LSE2 for -cpu max
Reverting this pa
On 8/5/23 06:51, Michael Tokarev wrote:
05.08.2023 16:28, Michael Tokarev wrote:
...
qemu-8.1 rc, with or without this patch set, does not work in
old aarch64 environment at all. F.e. ubuntu xenial or debian
jessie, like this:
# chroot /tmp/jessie-arm64/
qemu: uncaught target signal 11 (Segment
05.08.2023 16:28, Michael Tokarev wrote:
...
qemu-8.1 rc, with or without this patch set, does not work in
old aarch64 environment at all. F.e. ubuntu xenial or debian
jessie, like this:
# chroot /tmp/jessie-arm64/
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Segmentation f
Applied to my trivial-patches tree (for 8.2).
/mjt
05.08.2023 01:00, Richard Henderson wrpte:
Supercedes: 20230804014517.6361-1-richard.hender...@linaro.org
("[PATCH for-8.1 v8 00/17] linux-user: brk fixes")
Changes for linux-user brk v9:
Recover some changes that should have been in v8, had I
generated the patches from the correct tree:
From: "Nathan Egge"
Signed-off-by: Nathan Egge
---
linux-user/syscall.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 95727a816a..38ab2201e2 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -863,8 +86
05.08.2023 12:28, Hawkins Jiawei wrote:
..
I don't remember why, but this patch series is marked as "check later" in
my qemu-stable-to-apply email folder. Does it make sense to back-port this
series to stable-8.0?
6f34807116 vdpa: Return -EIO if device ack is VIRTIO_NET_ERR in
_load_offloads()
On 2023/8/5 14:15, Michael Tokarev wrote:
> 04.07.2023 06:34, Hawkins Jiawei wrote:
>> According to VirtIO standard, "The class, command and
>> command-specific-data are set by the driver,
>> and the device sets the ack byte.
>> There is little it can do except issue a diagnostic
>> if ack is not V
Gurchetan Singh writes:
> On Tue, Aug 1, 2023 at 8:18 AM Alyssa Ross wrote:
>
>> Gurchetan Singh writes:
>>
>> > On Mon, Jul 24, 2023 at 2:56 AM Alyssa Ross wrote:
>> >>
>> >> Gurchetan Singh writes:
>> >>
>> >> > In terms of API stability/versioning/packaging, once this series is
>> >> > rev
Peter Xu writes:
> On Fri, Aug 04, 2023 at 02:06:02PM +0200, Markus Armbruster wrote:
>> Peter Xu writes:
>>
>> > On Wed, Jul 26, 2023 at 08:21:35AM +0200, Markus Armbruster wrote:
>> >> Peter Xu writes:
>> >>
>> >> > Hi, Markus,
>> >> >
>> >> > On Tue, Jul 25, 2023 at 01:10:01PM +0200, Marku
Peter Xu writes:
> On Fri, Aug 04, 2023 at 05:48:49PM +0100, Daniel P. Berrangé wrote:
>> On Fri, Aug 04, 2023 at 12:46:18PM -0400, Peter Xu wrote:
>> > On Fri, Aug 04, 2023 at 05:29:19PM +0100, Daniel P. Berrangé wrote:
>> > > On Fri, Aug 04, 2023 at 12:01:54PM -0400, Peter Xu wrote:
>> > > > On
Peter Xu writes:
> On Fri, Aug 04, 2023 at 02:39:15PM +0100, Daniel P. Berrangé wrote:
>> On Wed, Jul 26, 2023 at 11:12:31AM -0400, Peter Xu wrote:
>> > On Wed, Jul 26, 2023 at 08:21:35AM +0200, Markus Armbruster wrote:
>> > > Peter Xu writes:
>> > >
>> > > > Hi, Markus,
>> > > >
>> > > > On Tu
On 05.08.23 01:03, Ilya Leoshkevich wrote:
Currently the emulation of VSTRS recognizes partial matches in presence
of \0 in the haystack, which, according to PoP, is not correct:
If the ZS flag is one and a zero byte was detected
in the second operand, then there can not be a
part
On 05.08.23 01:03, Ilya Leoshkevich wrote:
The vxe2 hwcap is not set for programs running in linux-user, but is
set by a Linux kernel running in softmmu. Add it to the former.
Signed-off-by: Ilya Leoshkevich
---
linux-user/elfload.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/linux-u
On 05.08.23 01:55, Ilya Leoshkevich wrote:
The length is always truncated to 16 bytes. Do not probe more than
that.
Cc: qemu-sta...@nongnu.org
Fixes: 0e0a5b49ad58 ("s390x/tcg: Implement VECTOR STORE WITH LENGTH")
Signed-off-by: Ilya Leoshkevich
---
target/s390x/tcg/vec_helper.c | 2 +-
1 fil
On 05.08.23 01:46, Ilya Leoshkevich wrote:
VFMIN and VFMAX should raise a specification exceptions when bits 1-3
of M5 are set.
Cc: qemu-sta...@nongnu.org
Fixes: da4807527f3b ("s390x/tcg: Implement VECTOR FP (MAXIMUM|MINIMUM)")
Signed-off-by: Ilya Leoshkevich
---
target/s390x/tcg/translate_vx
From: Hyman Huang(黄勇)
Commit "9445e1e15 virtio-blk-pci: default num_queues to -smp N"
implment sizing the number of virtio-blk-pci request virtqueues
to match the number of vCPUs automatically. Which improves IO
preformance remarkably.
To enable this feature for the existing VMs, the cloud platf
A 1:1 virtqueue:vCPU mapping implementation for virtio-*-pci disk
introduced since qemu >= 5.2.0, which improves IO performance
remarkably. To enjoy this feature for exiting running VMs without
service interruption, the common solution is to migrate VMs from the
lower version of the hypervisor to t
From: Hyman Huang(黄勇)
Commit "6a55882284 virtio-scsi-pci: default num_queues to -smp N"
implment sizing the number of virtio-scsi-pci request virtqueues
to match the number of vCPUs automatically. Which improves IO
preformance remarkably.
To enable this feature for the existing VMs, the cloud pl
From: Hyman Huang(黄勇)
Commit "a4eef0711b vhost-user-blk-pci: default num_queues to -smp N"
implment sizing the number of vhost-user-blk-pci request virtqueues
to match the number of vCPUs automatically. Which improves IO
preformance remarkably.
To enable this feature for the existing VMs, the cl
Andrew Melnychenko writes:
> Now, the binary objects may be retrieved by id.
> It would require for future qmp commands that may require specific
> eBPF blob.
>
> Added command "request-ebpf". This command returns
> eBPF program encoded base64. The program taken from the
> skeleton and essentiall
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