On 10/10/21 15:24, BALATON Zoltan wrote:
> Hello,
>
> I'm trying to fix shutdown and reboot on pegasos2 which uses ACPI as
> part of the VIA VT8231 (similar to and modelled in hw/isa/vt82c686b.c)
> and found that the guest writes to ACPI PM1aCNT register come out with
> wrong endianness but not
The virtio specification virtio-v1.1-cs01 states: "Transitional devices
MUST detect Legacy drivers by detecting that VIRTIO_F_VERSION_1 has not
been acknowledged by the driver." This is exactly what QEMU as of 6.1
has done relying solely on VIRTIO_F_VERSION_1 for detecting that.
However, the
Store and load the device's state during migration. use libvfio-user's
handlers for this purpose
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
---
migration/savevm.h| 2 +
hw/remote/vfio-user-obj.c | 339
Determine the BARs used by the PCI device and register handlers to
manage the access to the same.
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
---
hw/remote/vfio-user-obj.c | 90 +++
hw/remote/trace-events
Find the PCI device with specified id. Initialize the device context
with the QEMU PCI device
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
---
hw/remote/vfio-user-obj.c | 32
1 file changed, 32 insertions(+)
create a context with the vfio-user library to run a PCI device
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
---
hw/remote/vfio-user-obj.c | 38 ++
1 file changed, 38 insertions(+)
diff --git
Forward remote device's interrupts to the guest
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
Reviewed-by: Stefan Hajnoczi
---
include/hw/remote/iohub.h | 2 ++
hw/remote/iohub.c | 5 +
hw/remote/vfio-user-obj.c | 28
Acceptance test for libvfio-user in QEMU
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
---
MAINTAINERS | 1 +
tests/acceptance/vfio-user.py | 96 +++
2 files changed, 97 insertions(+)
create
Define vfio-user object which is remote process server for QEMU. Setup
object initialization functions and properties necessary to instantiate
the object
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
---
qapi/qom.json | 20 -
Define and register callbacks to manage the RAM regions used for
device DMA
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
Reviewed-by: Stefan Hajnoczi
---
hw/remote/vfio-user-obj.c | 50 +++
Setup a handler to run vfio-user context. The context is driven by
messages to the file descriptor associated with it - get the fd for
the context and hook up the handler with it
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
---
Define and register handlers for PCI config space accesses
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
---
hw/remote/vfio-user-obj.c | 45 +++
hw/remote/trace-events| 2 ++
2 files changed, 47
Based-on:
Hi,
Thank you very much for reviewing the patches in the previous revision!
We have addressed most of comments from v2.
We are working on MSI-x support (used by PCIe devices such as “nvme”)
and a couple of comments in the migration patches. We hope these two
items will be in the
add the libvfio-user library as a submodule. build it as a cmake
subproject.
Signed-off-by: Elena Ufimtseva
Signed-off-by: John G Johnson
Signed-off-by: Jagannathan Raman
---
configure | 13 +++-
meson.build| 39
The compiler path that cmake gets from meson is corrupted. It results in
the following error:
| -- The C compiler identification is unknown
| CMake Error at CMakeLists.txt:35 (project):
| The CMAKE_C_COMPILER:
| /opt/rh/devtoolset-9/root/bin/cc;-m64;-mcx16
| is not a full path to an existing
Yanan Wang writes:
> Functionally smp_parse() is only called once and in one place
> i.e. machine_set_smp, the possible second place where it'll be
> called should be some unit tests if any.
>
> Actually we are going to introduce an unit test for the parser.
> For necessary isolation of the
This patch introduces a boolean for the device has control queue which
can accepts control command via network queue.
The first user would be the control virtqueue support for vhost.
Signed-off-by: Jason Wang
Message-Id: <20210907090322.1756-6-jasow...@redhat.com>
Reviewed-by: Michael S.
Most of the time, "queues" really means queue pairs. So this patch
switch to use "queue_pairs" to avoid confusion.
Signed-off-by: Jason Wang
Message-Id: <20210907090322.1756-8-jasow...@redhat.com>
Reviewed-by: Michael S. Tsirkin
Signed-off-by: Michael S. Tsirkin
---
hw/net/vhost_net.c
Unlike vhost-kernel, vhost-vdpa adapts a single device multiqueue
model. So we need to simply use virtqueue index as the vhost virtqueue
index. This is a must for multiqueue to work for vhost-vdpa.
Signed-off-by: Jason Wang
Message-Id: <20210907090322.1756-4-jasow...@redhat.com>
Reviewed-by:
This patch introduces a new field in the vhost_dev structure to record
the last virtqueue index for the virtio device. This will be useful
for the vhost backends with 1:N model to start or stop the device
after all the vhost_dev structures were started or stopped.
Signed-off-by: Jason Wang
Vhost-vdpa uses one device multiqueue queue (pairs) model. So we need
to classify the one time request (e.g SET_OWNER) and make sure those
request were only called once per device.
This is used for multiqueue support.
Signed-off-by: Jason Wang
Message-Id:
Hi Richard,
On 2021/10/11 01:43, Richard Henderson wrote:
> When TCG_TARGET_SIGNED_ADDR32 is set, adjust the tlb addend to
> allow the 32-bit guest address to be sign extended within the
> 64-bit host register instead of zero extended.
>
> This will simplify tcg hosts like MIPS, RISC-V, and
We assume there's no cvq in the past, this is not true when we need
control virtqueue support for vhost-user backends. So this patch
implements the control virtqueue support for vhost-net. As datapath,
the control virtqueue is also required to be coupled with the
NetClientState. The
This patch implements the control virtqueue support for vhost. This
requires virtio-net to figure out the datapath queue pairs and control
virtqueue via is_datapath and pass the number of those two types
of virtqueues to vhost_net_start()/vhost_net_stop().
Signed-off-by: Jason Wang
Message-Id:
This patch implements the multiqueue support for vhost-vdpa. This is
done simply by reading the number of queue pairs from the config space
and initialize the datapath and control path net client.
Signed-off-by: Jason Wang
Message-Id: <20210907090322.1756-11-jasow...@redhat.com>
Reviewed-by:
This patch switches to let net_vhost_vdpa_init() to return
NetClientState *. This is used for the callers to allocate multiqueue
NetClientState for multiqueue support.
Signed-off-by: Jason Wang
Message-Id: <20210907090322.1756-5-jasow...@redhat.com>
Reviewed-by: Michael S. Tsirkin
This patch switches to open device fd in net_init_vhost_vpda(). This is
used to prepare for the multiqueue support.
Reviewed-by: Stefano Garzarella
Signed-off-by: Jason Wang
Message-Id: <20210907090322.1756-2-jasow...@redhat.com>
Reviewed-by: Michael S. Tsirkin
Signed-off-by: Michael S.
Hi All:
This patch implements the multiqueue support for vhost-vDPA. The most
important requirement si the control virtqueue support. The virtio-net
and vhost-net core are tweak to support control virtqueue as if what
data queue pairs are done: a dedicated vhost_net device which is
coupled with
On 2021/10/11 01:43, Richard Henderson wrote:
> Create a new function to combine a CPUTLBEntry addend
> with the guest address to form a host address.
>
> Signed-off-by: Richard Henderson
> ---
> accel/tcg/cputlb.c | 24 ++--
> 1 file changed, 14 insertions(+), 10
On 2021/10/11 01:43, Richard Henderson wrote:
> Define as 0 for all tcg hosts. Put this in a separate header,
> because we'll want this in places that do not ordinarily have
> access to all of tcg/tcg.h.
>
> Signed-off-by: Richard Henderson
> ---
> tcg/aarch64/tcg-target-sa32.h | 1 +
>
Hi Richard,
On 2021/10/11 01:44, Richard Henderson wrote:
> All 32-bit mips operations sign-extend the output, so we are easily
> able to keep TCG_TYPE_I32 values sign-extended in host registers.
>
> Signed-off-by: Richard Henderson
> ---
> tcg/mips/tcg-target-sa32.h | 8
>
On Wed, Oct 6, 2021 at 5:32 AM Michael S. Tsirkin wrote:
>
> On Tue, Oct 05, 2021 at 10:21:43AM -0700, Richard Henderson wrote:
> > On 10/5/21 9:00 AM, Michael S. Tsirkin wrote:
> > > The following changes since commit
> > > 9618c5badaa8eed25259cf095ff880efb939fbe7:
> > >
> > >Merge
On Fri, Oct 8, 2021 at 8:38 PM Damien Hedde wrote:
>
>
>
> On 10/7/21 09:59, Philippe Mathieu-Daudé wrote:
> > On 10/7/21 08:41, Alistair Francis wrote:
> >> On Wed, Oct 6, 2021 at 10:04 PM Damien Hedde
> >> wrote:
> >>> On 10/6/21 13:49, Philippe Mathieu-Daudé wrote:
> On 10/6/21 13:37,
AFAIK there’s no public documentation from Apple on how to read values from SMC.
But Amit Singh wrote a book, Mac OS X Internals, and one of the processes
described on it is how to read OSK directly from SMC:
Can you instead provide documentation in English (pseudocode, tables of the
structs, etc.)? That's the safest bet.
Paolo
El sáb., 9 oct. 2021 7:32, Pedro Tôrres escribió:
> Hey Paolo and Phil,
>
> I understand you concerns regarding the license that Apple open-source
> code is distributed.
>
>
Use DMA transfers in the multiboot loader to copy
data.
This significantly lowers QEMU's startup latency by
a factor of about 40, for example, going from 30sec
to 0.8sec when loading modules of 120MB in size.
This change has been used successfully for some time.
Signed-off-by: Marcus Hähnel
On Thu, Oct 7, 2021 at 6:28 PM Peter Lieven wrote:
>
> the qemu rbd driver currently lacks support for bdrv_co_block_status.
> This results mainly in incorrect progress during block operations (e.g.
> qemu-img convert with an rbd image as source).
>
> This patch utilizes the rbd_diff_iterate2
While the host may prefer to treat 32-bit addresses as signed,
there are edge cases of guests that cannot be implemented with
addresses 0x7fff_ and 0x8000_ being non-consecutive.
Therefore, default to guest_base_signed_addr32 false, and allow
probe_guest_base to determine whether it is
All RV64 32-bit operations sign-extend the output, so we are easily
able to keep TCG_TYPE_I32 values sign-extended in host registers.
Signed-off-by: Richard Henderson
---
tcg/riscv/tcg-target-sa32.h | 6 +-
tcg/riscv/tcg-target.c.inc | 8 ++--
2 files changed, 7 insertions(+), 7
Define as 0 for all tcg hosts. Put this in a separate header,
because we'll want this in places that do not ordinarily have
access to all of tcg/tcg.h.
Signed-off-by: Richard Henderson
---
tcg/aarch64/tcg-target-sa32.h | 1 +
tcg/arm/tcg-target-sa32.h | 1 +
tcg/i386/tcg-target-sa32.h|
AArch64 has both sign and zero-extending addressing modes, which
means that either treatment of guest addresses is equally efficient.
Enabling this for AArch64 gives us testing of the feature in CI.
Signed-off-by: Richard Henderson
---
tcg/aarch64/tcg-target-sa32.h | 8 -
When using reserved_va, which is the default for a 64-bit host
and a 32-bit guest, set guest_base_signed_addr32 if requested
by TCG_TARGET_SIGNED_ADDR32, and the executable layout allows.
Signed-off-by: Richard Henderson
---
include/exec/cpu-all.h | 4 ---
linux-user/elfload.c | 62
All 32-bit mips operations sign-extend the output, so we are easily
able to keep TCG_TYPE_I32 values sign-extended in host registers.
Signed-off-by: Richard Henderson
---
tcg/mips/tcg-target-sa32.h | 8
tcg/mips/tcg-target.c.inc | 13 +++--
2 files changed, 11 insertions(+),
When TCG_TARGET_SIGNED_ADDR32 is set, adjust the tlb addend to
allow the 32-bit guest address to be sign extended within the
64-bit host register instead of zero extended.
This will simplify tcg hosts like MIPS, RISC-V, and LoongArch,
which naturally sign-extend 32-bit values, in contrast to
Create a new function to combine a CPUTLBEntry addend
with the guest address to form a host address.
Signed-off-by: Richard Henderson
---
accel/tcg/cputlb.c | 24 ++--
1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
We have 2, and nearly 3, hosts that naturally produce sign-extended
values, and have to work extra hard (with 1 or 2 insns) to produce
the zero-extended address that we expect today.
However, it's a simple matter of arithmetic for the middle-end to
require sign-extended addresses instead. For
Le 07/10/2021 à 19:47, Richard Henderson a écrit :
> This is a partial patch set attempting to set things in the
> right direction for both the UXL and RV128 patch sets.
>
> One of the things that struck me while reading the RV128 patches
> is the proliferation of riscv_cpu_is_bits functions.
On Sun, 10 Oct 2021, Michael S. Tsirkin wrote:
On Sun, Oct 10, 2021 at 03:24:32PM +0200, BALATON Zoltan wrote:
Hello,
I'm trying to fix shutdown and reboot on pegasos2 which uses ACPI as part of
the VIA VT8231 (similar to and modelled in hw/isa/vt82c686b.c) and found
that the guest writes to
On Sun, Oct 10, 2021 at 03:24:32PM +0200, BALATON Zoltan wrote:
> Hello,
>
> I'm trying to fix shutdown and reboot on pegasos2 which uses ACPI as part of
> the VIA VT8231 (similar to and modelled in hw/isa/vt82c686b.c) and found
> that the guest writes to ACPI PM1aCNT register come out with wrong
Hello,
I'm trying to fix shutdown and reboot on pegasos2 which uses ACPI as part
of the VIA VT8231 (similar to and modelled in hw/isa/vt82c686b.c) and
found that the guest writes to ACPI PM1aCNT register come out with wrong
endianness but not shure why. I have this:
$ qemu-system-ppc -M
Cole Robinson writes:
> binutils started adding a .note.gnu.property ELF section which
> makes the PVH test fail:
>
> TESThello on x86_64
> qemu-system-x86_64: Error loading uncompressed kernel without PVH ELF Note
>
> Discard .note.gnu* while keeping the PVH .note bits intact.
>
> This
Functionally smp_parse() is only called once and in one place
i.e. machine_set_smp, the possible second place where it'll be
called should be some unit tests if any.
Actually we are going to introduce an unit test for the parser.
For necessary isolation of the tested code, split smp_parse out
Hi,
This series introduces an unit test for generic smp_parse().
We have had enough discussions about what kind of SMP configurations
by the user should be considered valid and what should be invalid.
Since we have finished optimizing the SMP parsing code, then this
test normatively listed all
Now that we have a generic parser smp_parse(), let's add an unit
test for the code. All possible valid/invalid SMP configurations
that the user can specify are covered.
Signed-off-by: Yanan Wang
---
MAINTAINERS | 1 +
tests/unit/meson.build | 1 +
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