The PAPR platform describes an OS environment that's presented by
a combination of a hypervisor and firmware. The features it specifies
require collaboration between the firmware and the hypervisor.
Since the beginning, the runtime component of the firmware (RTAS) has
been implemented as a 20
This patch adds record/replay test which boots Linux
kernel on openrisc platform. The test uses kernel binaries
taken from boot_linux_console test.
Signed-off-by: Pavel Dovgalyuk
Reviewed-by: Willian Rampazzo
---
tests/acceptance/replay_kernel.py | 11 +++
1 file changed, 11
This patch adds record/replay test which boots Linux
kernel on ppc64 platform. The test uses kernel binaries
taken from boot_linux_console test.
Signed-off-by: Pavel Dovgalyuk
---
tests/acceptance/replay_kernel.py | 13 +
1 file changed, 13 insertions(+)
diff --git
This patch adds record/replay test which boots Linux
kernel on alpha platform. The test uses kernel binaries
taken from boot_linux_console test.
Signed-off-by: Pavel Dovgalyuk
Reviewed-by: Willian Rampazzo
---
tests/acceptance/replay_kernel.py | 17 +
1 file changed, 17
From: Pavel Dovgalyuk
This patch adds a test for record/replay, which boots Linux
image from the disk and interacts with the network.
The idea and code of this test is borrowed from boot_linux.py
This test includes only x86_64 platform. Other platforms and
machines will be added later after
This patch adds record/replay test which boots Linux
kernel on nios2 platform. The test uses kernel binaries
taken from boot_linux_console test.
Signed-off-by: Pavel Dovgalyuk
Reviewed-by: Willian Rampazzo
---
tests/acceptance/replay_kernel.py | 11 +++
1 file changed, 11
This patch adds record/replay test which boots Linux
kernel on s390x platform. The test uses kernel binaries
taken from boot_linux_console test.
Signed-off-by: Pavel Dovgalyuk
Reviewed-by: Willian Rampazzo
---
tests/acceptance/replay_kernel.py | 16
1 file changed, 16
The following series adds new record/replay tests to the acceptance group.
The provided tests perform kernel boot and disk image boot scenarios.
For all of them recording and replaying phases are executed.
Tests were borrowed from existing boot_linux*.py tests.
New tests include kernel boot for
On 24.06.2021 21:15, Willian Rampazzo wrote:
On Wed, Jun 23, 2021 at 3:45 PM Willian Rampazzo wrote:
Hi Pavel,
On Thu, Jun 10, 2021 at 8:25 AM Pavel Dovgalyuk
wrote:
From: Pavel Dovgalyuk
This patch adds a test for record/replay, which boots Linux
image from the disk and interacts with
On Thu, Jun 24, 2021 at 10:57 PM Warner Losh wrote:
> This is a resend of a patch I sent back in March that was missing the
> proper
> includes due to a rebasing mistake.
>
> The issue is that all the BSDs use T_PAGEFLT to signal a page fault on x86,
> while linux uses 0xe. The patch harmonizes
These are the devices documented by the Rainier device tree. With this
we can see the guest discovering the multiplexers and probing the eeprom
devices:
i2c i2c-2: Added multiplexed i2c bus 16
i2c i2c-2: Added multiplexed i2c bus 17
i2c i2c-2: Added multiplexed i2c bus 18
i2c i2c-2: Added
The trap number for a page fault on BSD systems is T_PAGEFLT not 0xe. 0xe is
used by Linux and represents the intel hardware trap vector. The BSD kernels,
however, translate this to T_PAGEFLT in their Xpage, Xtrap0e, Xtrap14, etc fault
handlers. This is true for i386 and x86_64, though the name of
This is a resend of a patch I sent back in March that was missing the proper
includes due to a rebasing mistake.
Warner Losh (1):
tcg: Use correct trap number for page faults on *BSD systems
accel/tcg/user-exec.c | 20 ++--
1 file changed, 18 insertions(+), 2 deletions(-)
--
This is a resend of a patch I sent back in March that was missing the proper
includes due to a rebasing mistake.
The issue is that all the BSDs use T_PAGEFLT to signal a page fault on x86,
while linux uses 0xe. The patch harmonizes the different ways this can be
spelled, as explained in the patch
On Thu, 24 Jun 2021, Mark Cave-Ayland wrote:
> Thanks for the link and the detailed testing information. I've been
> trying to understand why you had to set the MAC address in the ARC
> firmware so I had a bit of an experiment here.
>
> The reason that you need to do this is because of the
Hi Khairul,
> +gdk_monitor = gdk_display_get_monitor(window_display,
> +
> opts->u.gtk.full_screen_on_monitor
> + - 1);
> +if (gdk_monitor != NULL) {
> +
Hello there! I noticed the message which appears when building qemu on
Haiku. I'd hate for Haiku to lose qemu, so I would like to help!
What is needed in terms of a build system for continuous integration? I'm
not familiar with CI systems, other than simply knowing what they do.
--
Regards,
Use the connection protocol,src port,dst port,src ip,dst ip as the key
to passthrough certain network traffic in object with network packet
processing function.
Signed-off-by: Zhang Chen
---
net/net.c | 199 +-
1 file changed, 197
Add passthrough list for each CompareState.
Signed-off-by: Zhang Chen
---
net/colo-compare.c | 28
net/colo-compare.h | 12
2 files changed, 40 insertions(+)
diff --git a/net/colo-compare.c b/net/colo-compare.c
index dcd24bb113..64e72c82f1 100644
---
Add hmp_passthrough_filter_add and hmp_passthrough_filter_del make user
can maintain object network passthrough list in human monitor
Signed-off-by: Zhang Chen
---
hmp-commands.hx | 26 +++
include/monitor/hmp.h | 2 ++
monitor/hmp-cmds.c| 76
Rename structure with COLO index and move it to .h file,
It make other modules can reuse COLO code.
Signed-off-by: Zhang Chen
---
net/colo-compare.c | 132 -
net/colo-compare.h | 86 +
2 files changed, 109 insertions(+),
No need to carry the flag all the time in many scenarios.
Signed-off-by: Zhang Chen
---
include/qemu/sockets.h | 1 +
util/qemu-sockets.c| 14 ++
2 files changed, 15 insertions(+)
diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h
index 0c34bf2398..3a0f8fa8f2 100644
Hi Jason, Please help to queue COLO-proxy patches to net branch.
Thanks
Chen
The following changes since commit b22726abdfa54592d6ad88f65b0297c0e8b363e2:
Merge remote-tracking branch
'remotes/vivier2/tags/linux-user-for-6.1-pull-request' into staging (2021-06-22
16:07:53 +0100)
are
Since the real user scenario does not need to monitor all traffic.
Add passthrough-filter-add and passthrough-filter-del to maintain
a network passthrough list in object with network packet processing
function. Add IPFlowSpec struct for all QMP commands.
Most the fields of IPFlowSpec are
在 2021/6/25 上午10:19, Qiang Liu 写道:
Hi,
On Wed, Jun 23, 2021 at 11:23 AM Jason Wang wrote:
在 2021/6/23 上午10:26, Qiang Liu 写道:
From: cyruscyliu
A malicious guest user can write VMXNET3_REG_ICR to crash QEMU. This
patch remove the g_aasert_not_reached() there and make the access pass.
Linux kernel version 5.1 brings in support for the volatile-use of
persistent memory as a hotplugged memory region (KMEM DAX).
When this feature is enabled, persistent memory can be seen as a
separate memory-only NUMA node(s). This newly-added memory can be
selected by its unique NUMA node.
Add
Hi,
On Wed, Jun 23, 2021 at 11:23 AM Jason Wang wrote:
>
>
> 在 2021/6/23 上午10:26, Qiang Liu 写道:
> > From: cyruscyliu
> >
> > A malicious guest user can write VMXNET3_REG_ICR to crash QEMU. This
> > patch remove the g_aasert_not_reached() there and make the access pass.
> >
> > Fixes: 786fd2b0f87
1) watchdog_expired is set bool which value could only be 0 or 1,
but watchdog_expired every bit mean different Timer Use.
2) Use the command -ipmitool mc get watchdog- to query
ipmi-watchdog status in guest.
...
[root@localhost ~]# ipmitool mc watchdog get
Watchdog Timer Use: SMS/OS (0x44)
On Wed, Jun 23, 2021 at 8:27 PM Paolo Bonzini wrote:
>
> Reviewed-by: Daniel P. Berrangé
> Signed-off-by: Paolo Bonzini
> ---
> configure | 27 ---
> hw/usb/meson.build | 2 +-
> meson.build| 11 +++
> meson_options.txt | 2 ++
> 4 files
* Dr. David Alan Gilbert(mailto:dgilb...@redhat.com) wrote:
> * Lin Feng (linfen...@huawei.com) wrote:
> > From: Feng Lin
> >
> > When testing migration, a Segmentation fault qemu core is generated.
> > 0 error_free (err=0x1)
> > 1 0x7f8b862df647 in qemu_fclose (f=f@entry=0x55e06c247640)
>
On 23/06/21 16:24, Jason Thorpe wrote:
Second, the firmware could set a nonzero period, and this would cause
continuous interruptions of the guest after the firmware stops, due to
s->periodic_timer firing. This is "optimized" by the bug that you are
fixing. To keep the optimization you could:
On 24/06/21 21:09, Peter Maydell wrote:
This generates a new warning on one of my boxes:
[...]
Has header "sasl/sasl.h" : YES (cached)
Library sasl2 found: YES
Has header "security/pam_appl.h" : YES
Library pam found: YES
../meson.build:926: WARNING: could not link libpam, disabling
This is
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
Replace magic values of the Power Management / SMBus function (#4)
by definitions from the datasheet. The result is less compact, and
we can follow what the code does without having to recur to the
datasheet.
I'm not sure this is an
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
When running the official PMON firmware for the Fuloong 2E, we see
8-bit and 16-bit accesses to PCI config space:
$ qemu-system-mips64el -M fuloong2e -bios pmon_2e.bin \
-trace -trace bonito\* -trace pci_cfg\*
pci_cfg_write vt82c686b-pm
@@ -930,20 +930,20 @@ DefinitionBlock ("", "DSDT", 1, "BOCHS ", "BXPC",
0x0001)
Device (S00)
{
Name (_ADR, Zero) // _ADR: Address
-Name (_SUN, Zero) // _SUN: Slot User Number
+Name (ASUN, Zero)
Signed-off-by: Igor Mammedov
---
tests/qtest/bios-tables-test-allowed-diff.h | 10 ++
1 file changed, 10 insertions(+)
diff --git a/tests/qtest/bios-tables-test-allowed-diff.h
b/tests/qtest/bios-tables-test-allowed-diff.h
index dfb8523c8b..6c83a3ef76 100644
---
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
Test the PMON firmware. As the firmware is not redistributable,
it has to be downloaded manually first. Then it can be used by
providing its path via the PMON_BIN_PATH environment variable:
$ PMON2E_BIN_PATH=~/images/fuloong2e/pmon_2e.bin \
Commit b7f23f62e40 (pci: acpi: add _DSM method to PCI devices),
regressed network interface naming for Linux guests in some cases.
This reverts PCI slot enumeration to its state before 6.0.
For details see 2/3 patch.
Thanks Stefan for troubleshooting!
Reported-by: john.suc...@ekinops.com
CC:
Commit [1] moved _SUN variable from only hot-pluggable to
all devices. This made linux kernel enumerate extra slots
that weren't present before. If extra slot happens to be
be enumerated first and there is a device in th same slot
but on other bridge, linux kernel will add -N suffix to
slot name
On Thu, Jun 24, 2021 at 12:38:03PM +0200, Gerd Hoffmann wrote:
> Add macros for module info annotations.
>
> Instead of having that module meta-data stored in lists in util/module.c
> place directly in the module source code.
>
[...]
> +/* module implements QOM type */
> +#define
Per the datasheet section "5.7.5. Accessing PCI configuration space"
the address must be 32-bit aligned. Trace eventual accesses not
aligned to 32-bit.
Signed-off-by: Philippe Mathieu-Daudé
---
hw/pci-host/bonito.c | 8
hw/pci-host/trace-events | 3 +++
2 files changed, 11
When running the official PMON firmware for the Fuloong 2E, we see
8-bit and 16-bit accesses to PCI config space:
$ qemu-system-mips64el -M fuloong2e -bios pmon_2e.bin \
-trace -trace bonito\* -trace pci_cfg\*
pci_cfg_write vt82c686b-pm 05:4 @0x90 <- 0xeee1
bonito_spciconf_small_access
Replace magic values of the Power Management / SMBus function (#4)
by definitions from the datasheet. The result is less compact, and
we can follow what the code does without having to recur to the
datasheet.
Signed-off-by: Philippe Mathieu-Daudé
---
hw/isa/vt82c686.c | 50
Test the kernel from Lemote rescue image:
http://dev.lemote.com/files/resource/download/rescue/rescue-yl
Once downloaded, set the RESCUE_YL_PATH environment variable
to point to the downloaded image and test as:
$ RESCUE_YL_PATH=~/images/fuloong2e/rescue-yl \
AVOCADO_ALLOW_UNTRUSTED_CODE=1
Test the PMON firmware. As the firmware is not redistributable,
it has to be downloaded manually first. Then it can be used by
providing its path via the PMON_BIN_PATH environment variable:
$ PMON2E_BIN_PATH=~/images/fuloong2e/pmon_2e.bin \
AVOCADO_ALLOW_UNTRUSTED_CODE=1 \
avocado
Commit 911629e6d37 ("vt82c686: Fix SMBus IO base and configuration
registers") exposed a "bug" in the Bonito north bridge. Fix it
and add tests.
Thanks to Zoltan for support while debugging :)
Philippe Mathieu-Daudé (5):
hw/isa/vt82c686: Replace magic numbers by definitions
This commit attempts to fix the first bug mentioned by Richard Henderson in
https://lists.nongnu.org/archive/html/qemu-devel/2021-05/msg06247.html
To sumarize the bug here, when radix-style mmus are translating an
address, they might need to call a second level of translation, with
hypervisor
Changed hash64 address translation to use the supplied mmu_idx instead
of using the one stored in the msr, for parity purposes (other book3s
MMUs already use it).
Signed-off-by: Bruno Larsen (billionai)
---
target/ppc/mmu-hash64.c | 43 -
Changed hash32 address translation to use the supplied mmu_idx, instead
of using what was stored in the msr, for parity purposes (radix64
already uses that).
Signed-off-by: Bruno Larsen (billionai)
---
target/ppc/mmu-hash32.c | 18 +-
target/ppc/mmu-hash32.h | 2 +-
This is the final part of the MMU fixes that were needed to support
disable-tcg, focusing on a possible bug on the second level address
translation of radix64 MMUs, and some changes to hash32 and hash64 to
work the same as rtadix64.
Changes for v3:
* removed patches that were already applied
*
Alexandre IOOSS writes:
> [[PGP Signed Part:Undecided]]
> On 6/22/21 12:37 PM, Alex Bennée wrote:
>> Alexandre IOOSS writes:
>>
>>> [[PGP Signed Part:Undecided]]
>>> On 6/22/21 10:48 AM, Alex Bennée wrote:
Alexandre Iooss writes:
> [...]
> +
> +The execlog tool traces
Philippe Mathieu-Daudé writes:
> Cc'ing the maintainer: Alex.
>
> On 6/23/21 5:08 PM, Kevin Mambu wrote:
>> Hi, everyone,
>> I need to put in place a plugin which is able to modify memory for a
>> specific project, and until now I managed to do so using
>> cpu_memory_rw_debug().
Out of
Peter -
Thanks for the clarification, that makes perfect sense.
In this case, using GDB is clearly the best way to go about the tracing.
I appreciate your time!
-S
On Thu, Jun 24, 2021 at 1:51 PM Peter Maydell
wrote:
> On Thu, 24 Jun 2021 at 18:09, Steven Raasch wrote:
> > NOTE: I do not
On 6/24/21 8:29 PM, BALATON Zoltan wrote:
> On Thu, 24 Jun 2021, BALATON Zoltan wrote:
>> On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
>>> On 6/24/21 7:00 PM, BALATON Zoltan wrote:
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
> On 6/24/21 6:16 PM, Philippe Mathieu-Daudé wrote:
On Wed, 23 Jun 2021 at 13:16, Paolo Bonzini wrote:
>
> The following changes since commit b22726abdfa54592d6ad88f65b0297c0e8b363e2:
>
> Merge remote-tracking branch
> 'remotes/vivier2/tags/linux-user-for-6.1-pull-request' into staging
> (2021-06-22 16:07:53 +0100)
>
> are available in the Git
* Lin Feng (linfen...@huawei.com) wrote:
> From: Feng Lin
>
> When testing migration, a Segmentation fault qemu core is generated.
> 0 error_free (err=0x1)
> 1 0x7f8b862df647 in qemu_fclose (f=f@entry=0x55e06c247640)
> 2 0x7f8b8516d59a in migrate_fd_cleanup (s=s@entry=0x55e06c0e1ef0)
Create sync objects and fences only for dmabufs that are blobs. Once a
fence is created (after glFlush) and is signalled,
graphic_hw_gl_flushed() will be called and virtio-gpu cmd processing
will be resumed.
Cc: Gerd Hoffmann
Signed-off-by: Vivek Kasireddy
---
hw/display/virtio-gpu-udmabuf.c |
Instead of immediately drawing and submitting, queue and wait
for the draw signal if the dmabuf submitted is a blob.
Cc: Gerd Hoffmann
Reviewed-by: Gerd Hoffmann
Signed-off-by: Vivek Kasireddy
---
include/ui/gtk.h | 2 ++
ui/gtk-egl.c | 15 +++
ui/gtk.c | 2 +-
3
When the Guest and Host are using Blob resources, there is a chance
that they may use the underlying storage associated with a Blob at
the same time leading to glitches such as flickering or tearing.
To prevent these from happening, the Host needs to ensure that it
waits until its Blit is
These egl helpers would be used for creating and waiting on
a sync object.
Cc: Gerd Hoffmann
Reviewed-by: Gerd Hoffmann
Signed-off-by: Vivek Kasireddy
---
include/ui/console.h | 2 ++
include/ui/egl-helpers.h | 2 ++
ui/egl-helpers.c | 26 ++
3 files
Since the texture release mechanism is same for both gtk-egl
and gtk-glarea, move the helper from gtk-egl to common gtk
code so that it can be shared by both gtk backends.
Cc: Gerd Hoffmann
Reviewed-by: Gerd Hoffmann
Signed-off-by: Vivek Kasireddy
---
include/ui/gtk.h | 2 --
ui/gtk-egl.c
Adding this callback provides a way to resume the processing of
cmds in fenceq and cmdq that were not processed because the UI
was waiting on a fence and blocked cmd processing.
Cc: Gerd Hoffmann
Reviewed-by: Gerd Hoffmann
Signed-off-by: Vivek Kasireddy
---
hw/display/virtio-gpu.c | 32
On Thu, Jun 24, 2021 at 12:06:14PM +0100, Peter Maydell wrote:
> On Thu, 24 Jun 2021 at 12:01, Gerd Hoffmann wrote:
> >
> > Reset requests should use SHUTDOWN_CAUSE_GUEST_RESET not
> > SHUTDOWN_CAUSE_GUEST_SHUTDOWN.
> >
> > Reported-by: Peter Maydell
> > Signed-off-by: Gerd Hoffmann
> > ---
> >
On Thu, 24 Jun 2021 at 18:09, Steven Raasch wrote:
> NOTE: I do not yet understand how gdb interacts with the virtual machine. I
> have experience with GDB, but only at a linux app-debug level. I don't grok
> how gdb on a linux host works with QEMU running a windows guest.
> My *assumption* is
Igor,
Thanks for the feedback. I am working to address/correct the items. I hope to
have v5 posted early next week.
eric
From: Igor Mammedov
Sent: Tuesday, June 22, 2021 10:51 AM
To: Eric DeVolder
Cc: qemu-devel@nongnu.org ; m...@redhat.com
;
ry at:
>
> https://git.linaro.org/people/pmaydell/qemu-arm.git
> tags/pull-target-arm-20210624
>
> for you to fetch changes up to 90a76c6316cfe6416fc33814a838fb3928f746ee:
>
> docs/system: arm: Add nRF boards description (2021-06-24 14:58:48 +0100)
>
> -
On 6/24/21 8:01 PM, BALATON Zoltan wrote:
> On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
>> On 6/24/21 7:00 PM, BALATON Zoltan wrote:
>>> On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
On 6/24/21 6:16 PM, Philippe Mathieu-Daudé wrote:
> On 6/24/21 6:01 PM, Philippe Mathieu-Daudé
This way, the upper layers like libvirt could have the possibility
to use QAPI to find out which audio drivers have been enabled during
compile-time of QEMU.
Signed-off-by: Thomas Huth
---
Note: Marked as RFC since it's quite a lot of ifdef'ing here...
not sure whether I really like
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
Hi Zoltan,
On 2/21/21 3:34 PM, Philippe Mathieu-Daudé wrote:
From: BALATON Zoltan
The base address of the SMBus io ports and its enabled status is set
by registers in the PCI config space but this was not correctly
emulated. Instead the
Hi Gerd,
> > >
> > > > dmabuf->buf.fd = res->dmabuf_fd;
> > > > +dmabuf->buf.blob = true;
> > >
> > > Do you actually need the 'blob' field?
> > > I think checking 'fd' instead should work too.
> > [Kasireddy, Vivek] I want these changes to be limited to blob resources
> > only as I do
On Thu, 24 Jun 2021, BALATON Zoltan wrote:
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
On 6/24/21 7:00 PM, BALATON Zoltan wrote:
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
On 6/24/21 6:16 PM, Philippe Mathieu-Daudé wrote:
On 6/24/21 6:01 PM, Philippe Mathieu-Daudé wrote:
On
Hi Gerd,
> > Why does Qemu need a new Wayland UI backend?
> > The main reason why there needs to be a plain and simple Wayland backend
> > for Qemu UI is to eliminate the Blit (aka GPU copy) that happens if using
> > a toolkit like GTK or SDL (because they use EGL). The Blit can be eliminated
> >
On Wed, Jun 23, 2021 at 3:45 PM Willian Rampazzo wrote:
>
> Hi Pavel,
>
> On Thu, Jun 10, 2021 at 8:25 AM Pavel Dovgalyuk
> wrote:
> >
> > From: Pavel Dovgalyuk
> >
> > This patch adds a test for record/replay, which boots Linux
> > image from the disk and interacts with the network.
> > The
From: Joelle van Dyne
On Darwin (iOS), there are no system level APIs for directly accessing
host block devices. We detect this at configure time.
Signed-off-by: Joelle van Dyne
Message-Id: <20210315180341.31638-...@getutm.app>
Signed-off-by: Paolo Bonzini
---
block/file-posix.c | 33
From: Joelle van Dyne
Some BSD platforms do not have this header.
Reviewed-by: Peter Maydell
Reviewed-by: Philippe Mathieu-Daudé
Signed-off-by: Joelle van Dyne
Message-Id: <20210315180341.31638-...@getutm.app>
Reviewed-by: Max Reitz
Signed-off-by: Paolo Bonzini
---
block.c | 2 +-
Similar to other handle_aiocb_* functions, handle_aiocb_ioctl needs to cater
for the possibility that ioctl is interrupted by a signal. Otherwise, the
I/O is incorrectly reported as a failure to the guest.
Reported-by: Gordon Watson
Signed-off-by: Paolo Bonzini
---
block/file-posix.c | 4 +++-
Try all the possible ioctls for disk size as long as they are
supported, to keep the #if ladder simple.
Extracted and cleaned up from a patch by Joelle van Dyne and
Warner Losh.
Signed-off-by: Paolo Bonzini
---
block/file-posix.c | 34 --
1 file changed, 16
From: Joelle van Dyne
iOS hosts do not have these defined so we fallback to the
default behaviour.
Co-authored-by: Warner Losh
Signed-off-by: Joelle van Dyne
Signed-off-by: Paolo Bonzini
---
block/file-posix.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
For block host devices, I/O can happen through either the kernel file
descriptor I/O system calls (preadv/pwritev, io_submit, io_uring)
or the SCSI passthrough ioctl SG_IO.
In the latter case, the size of each transfer can be limited by the
HBA, while for file descriptor I/O the kernel is able to
Block device requests must be aligned to bs->bl.request_alignment.
It makes sense for drivers to align bs->bl.max_transfer the same
way; however when there is no specified limit, blk_get_max_transfer
just returns INT_MAX. Since the contract of the function does not
specify that INT_MAX means "no
bs->sg is only true for character devices, but block devices can also
be used with scsi-block and scsi-generic. Unfortunately BLKSECTGET
returns bytes in an int for /dev/sgN devices, and sectors in a short
for block devices, so account for that in the code.
The maximum transfer also need not be
New patches:
- 3/4 (for review comments),
- 9 (split for ease of review),
- 11 (new bugfix)
v1->v2: add missing patch
v2->v3: add max_hw_transfer to BlockLimits
v3->v4: fix compilation after patch 1, tweak commit messages according
to Vladimir's review
v4->v5: round down max_transfer
osdep.h provides a ROUND_UP macro to hide bitwise operations for the
purpose of rounding a number up to a power of two; add a ROUND_DOWN
macro that does the same with truncation towards zero.
While at it, change the formatting of some comments.
Signed-off-by: Paolo Bonzini
---
Even though it was only called for devices that have bs->sg set (which
must be character devices), sg_get_max_segments looked at /sys/dev/block
which only works for block devices.
On Linux the sg driver has its own way to provide the maximum number of
iovecs in a scatter/gather list, so add
I/O to a disk via read/write is not limited by the number of segments allowed
by the host adapter; the kernel can split requests if needed, and the limit
imposed by the host adapter can be very low (256k or so) to avoid that SG_IO
returns EINVAL if memory is heavily fragmented.
Since this value
* Gerd Hoffmann (kra...@redhat.com) wrote:
> On Thu, Jun 24, 2021 at 04:01:25PM +0100, Dr. David Alan Gilbert wrote:
> > * Gerd Hoffmann (kra...@redhat.com) wrote:
> > > This patch series adds support for module meta-data. Today this is
> > > either hard-coded in qemu (see
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
On 6/24/21 7:00 PM, BALATON Zoltan wrote:
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
On 6/24/21 6:16 PM, Philippe Mathieu-Daudé wrote:
On 6/24/21 6:01 PM, Philippe Mathieu-Daudé wrote:
On 6/24/21 5:46 PM, Philippe Mathieu-Daudé
On Thu, Jun 24, 2021 at 03:55:29PM +0100, Dr. David Alan Gilbert wrote:
> * Gerd Hoffmann (kra...@redhat.com) wrote:
> > Allow commands having a NULL cmd pointer, add a function to set the
> > pointer later. Use case: allow modules implement hmp commands.
> >
> > Signed-off-by: Gerd Hoffmann
>
On 6/24/21 7:00 PM, BALATON Zoltan wrote:
> On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
>> On 6/24/21 6:16 PM, Philippe Mathieu-Daudé wrote:
>>> On 6/24/21 6:01 PM, Philippe Mathieu-Daudé wrote:
On 6/24/21 5:46 PM, Philippe Mathieu-Daudé wrote:
> Hi Zoltan,
>
> On 2/21/21
On Thu, Jun 24, 2021 at 06:14:39PM +0100, Dr. David Alan Gilbert wrote:
> * Leonardo Bras (leob...@redhat.com) wrote:
> > Currently, if a qemu instance is started with "-incoming defer" and
> > an incorect parameter is passed to "migrate_incoming", it will print the
> > expected error and reply
On Thu, Jun 24, 2021 at 04:01:25PM +0100, Dr. David Alan Gilbert wrote:
> * Gerd Hoffmann (kra...@redhat.com) wrote:
> > This patch series adds support for module meta-data. Today this is
> > either hard-coded in qemu (see qemu_load_module_for_opts) or handled
> > with manually maintained lists
* Dr. David Alan Gilbert (dgilb...@redhat.com) wrote:
> * Leonardo Bras (leob...@redhat.com) wrote:
> > Currently, if a qemu instance is started with "-incoming defer" and
> > an incorect parameter is passed to "migrate_incoming", it will print the
> > expected error and reply with "duplicate yank
+Yajin, Chenming
On 6/24/21 6:46 PM, Philippe Mathieu-Daudé wrote:
> On 6/24/21 6:16 PM, Philippe Mathieu-Daudé wrote:
>> On 6/24/21 6:01 PM, Philippe Mathieu-Daudé wrote:
>>> On 6/24/21 5:46 PM, Philippe Mathieu-Daudé wrote:
Hi Zoltan,
On 2/21/21 3:34 PM, Philippe Mathieu-Daudé
* Leonardo Bras (leob...@redhat.com) wrote:
> Currently, if a qemu instance is started with "-incoming defer" and
> an incorect parameter is passed to "migrate_incoming", it will print the
> expected error and reply with "duplicate yank instance" for any upcoming
> "migrate_incoming" command.
>
>
Understood with your KVM/TCG snapshot comment. I thought it was worth a try.
NOTE: I do not yet understand how gdb interacts with the virtual machine. I
have experience with GDB, but only at a linux app-debug level. I don't grok
how gdb on a linux host works with QEMU running a windows guest.
My
Ping.
On Fri, Jun 11, 2021 at 10:32 PM Ziqiao Kong wrote:
>
> Ping.
>
> On Fri, Jun 4, 2021 at 11:04 PM Ziqiao Kong wrote:
> >
> > Ping.
> >
> > Sorry again for the previous duplicate emails.
> >
> > On Sun, May 30, 2021 at 11:03 PM Ziqiao Kong wrote:
> > >
> > > A new pair of braces has to be
Ping.
On Fri, Jun 11, 2021 at 10:32 PM Ziqiao Kong wrote:
>
> Ping.
>
> On Fri, Jun 4, 2021 at 11:04 PM Ziqiao Kong wrote:
> >
> > Ping.
> >
> > Sorry again for the previous duplicate emails.
> >
> > On Sun, May 30, 2021 at 11:05 PM Ziqiao Kong wrote:
> > >
> > > Update FCS:FIP and FDS:FDP
On Thu, 24 Jun 2021, Philippe Mathieu-Daudé wrote:
On 6/24/21 6:16 PM, Philippe Mathieu-Daudé wrote:
On 6/24/21 6:01 PM, Philippe Mathieu-Daudé wrote:
On 6/24/21 5:46 PM, Philippe Mathieu-Daudé wrote:
Hi Zoltan,
On 2/21/21 3:34 PM, Philippe Mathieu-Daudé wrote:
From: BALATON Zoltan
The
On 6/24/21 6:16 PM, Philippe Mathieu-Daudé wrote:
> On 6/24/21 6:01 PM, Philippe Mathieu-Daudé wrote:
>> On 6/24/21 5:46 PM, Philippe Mathieu-Daudé wrote:
>>> Hi Zoltan,
>>>
>>> On 2/21/21 3:34 PM, Philippe Mathieu-Daudé wrote:
From: BALATON Zoltan
The base address of the SMBus io
* Li Zhijian (lizhij...@cn.fujitsu.com) wrote:
> destination:
> ../qemu/build/qemu-system-x86_64 -enable-kvm -netdev
> tap,id=hn0,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown -device
> e1000,netdev=hn0,mac=50:52:54:00:11:22 -boot c -drive
>
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