Add functions to support configure interrupt.
The configure interrupt process will start in vhost_dev_start
and stop in vhost_dev_stop.
Also add the functions to support vhost_config_pending and
vhost_config_mask.
Signed-off-by: Cindy Lu
---
hw/virtio/vhost.c | 78 ++
To reuse the interrupt process in configure interrupt
Need to decouple the single vector from the interrupt process.
We add new function kvm_virtio_pci_vector_use_one and _release_one.
These functions are used for the single vector, the whole process will
finish in the loop with vq number.
Signed-
Add configure interrupt support in virtio-mmio bus.
add function to set configure guest notifier.
Signed-off-by: Cindy Lu
---
hw/virtio/virtio-mmio.c | 27 +++
1 file changed, 27 insertions(+)
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c
index d240efef9
Add the functions to support the configure interrupt in virtio
The function virtio_config_guest_notifier_read will notify the
guest if there is an configure interrupt.
The function virtio_config_set_guest_notifier_fd_handler is
to set the fd hander for the notifier
Signed-off-by: Cindy Lu
---
hw
To support configure interrupt for vhost-vdpa
Introduce VIRTIO_CONFIG_IRQ_IDX -1 as configure interrupt's queue index,
Then we can reuse the functions guest_notifier_mask and guest_notifier_pending.
Add the check of queue index in these drivers, if the driver does not support
configure interrupt, t
Add functions to support configure interrupt in virtio_net
Add the functions to support vhost_net_config_pending
and vhost_net_config_mask.
Signed-off-by: Cindy Lu
---
hw/net/vhost_net.c | 9 +
hw/net/virtio-net.c | 4 ++--
include/net/vhost_net.h | 2 ++
3 files changed, 13 ins
Add new call back function in vhost-vdpa, The function
vhost_set_config_call can set the event fd to kernel.
This function will be called in the vhost_dev_start
and vhost_dev_stop
Signed-off-by: Cindy Lu
---
hw/virtio/trace-events | 1 +
hw/virtio/vhost-vdpa.c | 8
2 files changed, 9 in
To reuse the notifier process. We add the virtio_pci_get_notifier
to get the notifier and vector. The INPUT for this function is IDX,
The OUTPUT is the notifier and the vector
Signed-off-by: Cindy Lu
---
hw/virtio/virtio-pci.c | 88 +++---
1 file changed, 57 i
These patches introduced the support for configure interrupt
These codes are tested on x86_64 and aarch64 platforms.
the test scenario is based on vp-vdpa/vdpa_sim /virtio net device, with
the irqfd and without irqfd.
Tested in virtio-pci bus and virtio-mmio bus
Change in v2:
Add support for vi
On 7/21/22 13:18, Thomas Huth wrote:
We currently require at least GCC 7.4 or Clang 6.0 for compiling QEMU.
GCC has __builtin_mul_overflow since version 5 already, and Clang 6.0
also provides this built-in function (see its documentation on this page:
https://releases.llvm.org/6.0.0/tools/clang/d
On 7/21/22 09:30, Song Gao wrote:
Fix a compiler warning on openbsd:
../src/hw/loongarch/acpi-build.c:416:12: warning: variable 'aml_len'
set but not used [-Wunused-but-set-variable]
size_t aml_len = 0;
^
Reported-by: Peter Maydell
Signed-off-by: Song Gao
---
Reviewed-by: Ri
Le 17/07/2022 à 18:21, Helge Deller a écrit :
When writing back the fd[1] pipe file handle to emulated userspace
memory, use sizeof(abi_int) as offset insted of the hosts's int type.
There is no functional change in this patch.
Signed-off-by: Helge Deller
diff --git a/linux-user/syscall.c b/li
On 7/20/22 00:47, Peter Maydell wrote:
Coverity notes that we forgot to check the error return from
lock_user() in one place in the handling of the UHI_plog semihosting
call. Add the missing error handling.
report_fault() is rather brutal in that it will call abort(), but
this is the same error
On 7/18/22 15:31, Peter Maydell wrote:
In commit 7390e0e9ab8475, we added support for SME loads and stores.
Unlike SVE loads and stores, these include handling of 128-bit
elements. The SME load/store functions call down into the existing
sve_cont_ldst_elements() function, which uses the element
On 7/17/22 21:51, Helge Deller wrote:
When writing back the fd[1] pipe file handle to emulated userspace
memory, use sizeof(abi_int) as offset insted of the hosts's int type.
There is no functional change in this patch.
Signed-off-by: Helge Deller
Reviewed-by: Richard Henderson
r~
Daniel P. Berrangé writes:
> Mostly this is to get the latest libvirt-ci content pulled in,
> but I throw two small fixes on top.
>
> Changed in v2:
>
> - Reworded various bits of the commit message
> for first patch
Queued to testing/next, thanks.
--
Alex Bennée
On 220722 2210, Claudio Fontana wrote:
> Hi Richard,
>
> On 7/22/22 21:20, Richard Liu wrote:
> > This RFC adds a virtual device for snapshot/restores within QEMU. I am
> > working
> > on this as a part of QEMU Google Summer of Code 2022. Fast snapshot/restores
> > within QEMU is helpful for code
On Fri, 22 Jul 2022 at 20:21, Michael S. Tsirkin wrote:
>
> On Fri, Jul 22, 2022 at 03:46:52PM +0800, Cindy Lu wrote:
> > Hi Micheal.
> > Would you help review these patches, not sure if this is ok to merge?
> > Thanks
> > Cindy
>
> Pls note threading is broken in the patchset. Care to repost?
>
T
This patch fixes the dedicated framebuffer mailbox interface(marked as
deprecated in official docs, but can still be fixed for emulation purposes)
by removing unneeded offset to make it works like buffer allocate tag in
bcm2835_property interface[1], some baremetal applications like the
Screen01/Sc
On Thu, Jul 21, 2022 at 06:00:44PM -0700, Atish Patra wrote:
> Historically, The mtime/mtimecmp has been part of the CPU because
> they are per hart entities. However, they actually belong to aclint
> which is a MMIO device.
>
> Move them to the ACLINT device. This also emulates the real hardware
Since commit 40244040a7ac, multi-socket configuration with plic is
broken as the hartid for second socket is calculated incorrectly.
The hartid stored in addr_config already includes the offset
for the base hartid for that socket. Adding it again would lead
to segfault while creating the plic devic
On 22/07/2022 17:40, Mark Cave-Ayland wrote:
On 22/07/2022 14:44, Marc-André Lureau wrote:
Hi
On Fri, Jul 22, 2022 at 4:28 PM Howard Spoelstra wrote:
On Fri, Jun 17, 2022 at 2:38 PM Marc-André Lureau
wrote:
Hi
On Fri, Jun 17, 2022 at 1:56 PM Gerd Hoffmann wrote:
Hi,
Can you
Add process to handle the configure interrupt, The function's
logic is the same with vq interrupt.Add extra process to check
the configure interrupt
Signed-off-by: Cindy Lu
---
hw/virtio/virtio-pci.c | 110 ++---
hw/virtio/virtio-pci.h | 4 +-
2 files change
Add configure interrupt support in virtio-mmio bus.
add function to set configure guest notifier.
Signed-off-by: Cindy Lu
---
hw/virtio/virtio-mmio.c | 27 +++
1 file changed, 27 insertions(+)
diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c
index 688eccda9
Add functions to support configure interrupt in virtio_net
Add the functions to support vhost_net_config_pending
and vhost_net_config_mask.
Signed-off-by: Cindy Lu
---
hw/net/vhost_net.c | 9 +
hw/net/virtio-net.c | 4 ++--
include/net/vhost_net.h | 2 ++
3 files changed, 13 ins
To reuse the interrupt process in configure interrupt
Need to decouple the single vector from the interrupt process.
We add new function kvm_virtio_pci_vector_use_one and _release_one.
These functions are used for the single vector, the whole process will
finish in the loop with vq number.
Signed-
Add functions to support configure interrupt.
The configure interrupt process will start in vhost_dev_start
and stop in vhost_dev_stop.
Also add the functions to support vhost_config_pending and
vhost_config_mask.
Signed-off-by: Cindy Lu
---
hw/virtio/vhost.c | 78 ++
Add the functions to support the configure interrupt in virtio
The function virtio_config_guest_notifier_read will notify the
guest if there is an configure interrupt.
The function virtio_config_set_guest_notifier_fd_handler is
to set the fd hander for the notifier
Signed-off-by: Cindy Lu
---
hw
To reuse the notifier process. We add the virtio_pci_get_notifier
to get the notifier and vector. The INPUT for this function is IDX,
The OUTPUT is the notifier and the vector
Signed-off-by: Cindy Lu
---
hw/virtio/virtio-pci.c | 88 +++---
1 file changed, 57 i
To support configure interrupt for vhost-vdpa
Introduce VIRTIO_CONFIG_IRQ_IDX -1 as configure interrupt's queue index,
Then we can reuse the functions guest_notifier_mask and guest_notifier_pending.
Add the check of queue index in these drivers, if the driver does not support
configure interrupt, t
This patch introduces new VhostOps vhost_set_config_call.
This function allows the qemu to set the config
event fd to kernel driver.
Signed-off-by: Cindy Lu
---
include/hw/virtio/vhost-backend.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/hw/virtio/vhost-backend.h
b/include/h
Add new call back function in vhost-vdpa, The function
vhost_set_config_call can set the event fd to kernel.
This function will be called in the vhost_dev_start
and vhost_dev_stop
Signed-off-by: Cindy Lu
---
hw/virtio/trace-events | 1 +
hw/virtio/vhost-vdpa.c | 8
2 files changed, 9 in
These patches are interduce the support for configure interrupt
These codes are all tested on x86_64 and aarch64 platform.
In the scenario with vp-vdpa/vdpa_sim /virtio net device, with
the irqfd and without irqfd
tested in virtio-pci bus and virtio-mmio bus
Change in v2:
Add support for virtio-
From: Hyman Huang(黄勇)
Guestperf tool does not cover the dirty-limit migration
currently, support this feature.
To enable dirty-limit, setting x-vcpu-dirty-limit-period
as 500ms and vcpu-dirty-limit as 10MB/s:
$ ./tests/migration/guestperf.py \
--dirty-limit --x-vcpu-dirty-limit-period 500 \
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 te
From: Hyman Huang(黄勇)
Export dirty limit throttle time and estimated ring full
time, through which we can observe the process of dirty
limit during live migration.
Signed-off-by: Hyman Huang(黄勇)
---
include/sysemu/dirtylimit.h | 2 ++
migration/migration.c | 10 ++
monitor/hmp-c
From: Hyman Huang(黄勇)
Introduce migration dirty-limit capability, which can
be turned on before live migration and limit dirty
page rate durty live migration.
Introduce migrate_dirty_limit function to help check
if dirty-limit capability enabled during live migration.
Meanwhile, refactor vcpu_d
From: Hyman Huang(黄勇)
Introduce "x-vcpu-dirty-limit-period" migration experimental
parameter, which is used to make dirtyrate calculation period
configurable.
Signed-off-by: Hyman Huang(黄勇)
---
migration/migration.c | 16
monitor/hmp-cmds.c| 8
qapi/migration.jso
From: Hyman Huang(黄勇)
Implement dirty-limit convergence algo for live migration,
which is kind of like auto-converge algo but using dirty-limit
instead of cpu throttle to make migration convergent.
Signed-off-by: Hyman Huang(黄勇)
---
migration/ram.c| 53 +
From: Hyman Huang(黄勇)
Guestperf tool does not enable diry ring feature when test
migration by default.
To support dirty ring migration performance test, introduce
dirty-ring-size option into guestperf tools, which ranges in
[1024, 65536].
To set dirty ring size with 4096 during migration test:
From: Hyman Huang(黄勇)
Introduce "vcpu-dirty-limit" migration parameter used
to limit dirty page rate during live migration.
"vcpu-dirty-limit" and "x-vcpu-dirty-limit-period" are
two dirty-limit-related migration parameters, which can
be set before and during live migration by qmp
migrate-set-pa
From: Hyman Huang(黄勇)
Abstract
This series added a new migration capability called "dirtylimit". It can
be enabled when dirty ring is enabled, and it'll improve the vCPU performance
during the process of migration. It is based on the previous patchset:
https://lore.kernel.org/qemu-deve
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