Hi Eric,
On 10/20/22 4:07 AM, Eric Auger wrote:
On 10/12/22 01:18, Gavin Shan wrote:
There are three high memory regions, which are VIRT_HIGH_REDIST2,
VIRT_HIGH_PCIE_ECAM and VIRT_HIGH_PCIE_MMIO. Their base addresses
are floating on highest RAM address. However, they can be disabled
in several
Hi Connie,
On 10/19/22 10:00 PM, Cornelia Huck wrote:
On Wed, Oct 12 2022, Gavin Shan wrote:
After the improvement to high memory region address assignment is
applied, the memory layout can be changed, introducing possible
migration breakage. For example, VIRT_HIGH_PCIE_MMIO memory region
is
Thanks Paul & Julien for reviewing. I will update this in v2.
Regards,
Vikram
From: Paul Durrant
Date: Wednesday, October 19, 2022 at 9:16 AM
To: Garhwal, Vikram , qemu-devel@nongnu.org
Cc: Stabellini, Stefano , Stefano Stabellini
, Anthony Perard , Michael
S. Tsirkin , Marcel Apfelbaum ,
P
Hi Eric,
On 10/20/22 4:18 AM, Eric Auger wrote:
On 10/12/22 01:18, Gavin Shan wrote:
After the improvement to high memory region address assignment is
applied, the memory layout can be changed, introducing possible
migration breakage. For example, VIRT_HIGH_PCIE_MMIO memory region
is disabled o
On 10/19/22 21:35, Alex Bennée wrote:
The s390x EXecute instruction is a bit weird as we synthesis the
executed instruction from what we have stored in memory. When plugins
are enabled this breaks because we detect the ld_code2() loading from
a non zero offset without the rest of the instruction
When number of CPUs utilized by guest Windows is less than defined in
QEMU (i.e., desktop versions of Windows severely limits number of CPU
sockets), patch_and_save_context routine accesses non-existent PRCB and
fails. So, limit number of processed PRCBs by NumberProcessors taken
from guest Windows
On 10/19/22 22:50, Lucas Mateus Castro(alqotel) wrote:
From: "Lucas Mateus Castro (alqotel)"
Used gvec to translate XVTSTDCSP and XVTSTDCDP.
xvtstdcsp:
reptloopimm master version prev versioncurrent version
25 40000 0,2062000,040730 (-80.2%)0,0407
Ping...
On Fri, 2022-10-07 at 21:27 +0800, Robert Hoo wrote:
> Ping...
> On Tue, 2022-09-27 at 08:30 +0800, Robert Hoo wrote:
> > On Mon, 2022-09-26 at 15:22 +0200, Igor Mammedov wrote:
> > > > > 0800200c9a66"), One, 0x05, Local0, One)
> > > > > +CreateDWordField (Local3, Zero,
On Wed, Oct 19, 2022 at 2:39 PM Cindy Lu wrote:
>
> Add support for vIOMMU. Register a memory listener to dma_as in
> dev_start
> - during region_add register a specific IOMMU notifier, and store all
> notifiers in a list.
> - during region_del, compare and delete the IOMMU notifier from the list
On 10/19/22 22:56, Christian Borntraeger wrote:
Ilya has volunteered to review TCG patches for s390x.
Signed-off-by: Christian Borntraeger
---
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index e3d5b7e09c46..ae5e8c8ecbb6 100644
--- a/MAINTAINERS
+
On 10/20/22 01:16, Greg Kurz wrote:
When QEMU is started with `-daemonize`, all stdio descriptors get
redirected to `/dev/null`. This basically means that anything
printed with error_report() and friends is lost.
One could hope that passing `-D ${logfile}` would cause the messages
to go to `${lo
On 10/20/22 01:06, Paolo Bonzini wrote:
VROUND, FSTCW and STMXCSR all have to perform the same conversion from
x86 rounding modes to softfloat constants. Since the ISA is consistent
on the meaning of the two-bit rounding modes, extract the common code
into a wrapper for set_float_rounding_mode.
On 10/20/22 01:06, Paolo Bonzini wrote:
If the destination is a memory register, op->n is -1. Going through
tcg_gen_gvec_dup_imm path is both useless (the value has been stored
by the gen_* function already) and wrong because of the out-of-bounds
access.
Signed-off-by: Paolo Bonzini
---
targ
On 10/20/22 01:06, Paolo Bonzini wrote:
F16C only consists of two instructions, which are a bit peculiar
nevertheless.
First, they access only the low half of an YMM or XMM register for the
packed-half operand; the exact size still depends on the VEX.L flag.
This is similar to the existing avx_m
On 10/20/22 01:06, Paolo Bonzini wrote:
The only issue with FMA instructions is that there are _a lot_ of them
(30 opcodes, each of which comes in up to 4 versions depending on VEX.W
and VEX.L).
We can reduce the number of helpers to one third by passing four operands
(one output and three input
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Peter Maydell
Signed-off-by: Richard Henderson
---
target/arm/translate.c | 37 +
1 file changed, 21 insertions(+), 16 deletions(-)
diff --git a/target/arm/translate.c b/tar
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Philippe Mathieu-Daudé
Signed-off-by: Richard Henderson
---
target/arm/translate.c | 38 +-
1 file changed, 21 insertions(+), 17 deletions(-)
diff --git a/target/arm/transla
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Peter Maydell
Signed-off-by: Richard Henderson
---
target/arm/translate-a64.c | 41 +++---
1 file changed, 29 insertions(+), 12 deletions(-)
diff --git a/target/arm/translate-a6
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Since we always pass dc->pc_curr, fold the arithmetic to zero displacement.
Reviewed-by: Philippe Mathieu-Daudé
Signed-off-by: Richard Henderson
---
target/arm/translate-a64.c | 6 +++---
target/arm/translate.c | 10 ++
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Peter Maydell
Signed-off-by: Richard Henderson
---
target/arm/translate-a64.c | 40 --
target/arm/translate.c | 10 ++
2 files changed, 27 insertions(+), 23 delet
This is the Arm specific changes required to reduce the
amount of translation for address space randomization.
Changes for v8:
* Add a comment to both gen_goto_tb concerning the ordering
of the pc update vs the goto_tb opcode.
r~
Richard Henderson (9):
target/arm: Introduce curr_insn_len
In preparation for TARGET_TB_PCREL, reduce reliance on
absolute values by passing in pc difference.
Reviewed-by: Philippe Mathieu-Daudé
Signed-off-by: Richard Henderson
---
target/arm/translate-a32.h | 2 +-
target/arm/translate.h | 6 ++--
target/arm/translate-a64.c | 32 +---
On 10/17/22 20:01, Peter Maydell wrote:
On Tue, 11 Oct 2022 at 04:30, Richard Henderson
wrote:
Hoist the computation of the mmu_idx for the ptw up to
get_phys_addr_with_struct and get_phys_addr_twostage.
This removes the duplicate check for stage2 disabled
from the middle of the walk, performi
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Philippe Mathieu-Daudé
Signed-off-by: Richard Henderson
---
target/arm/translate.h| 5 +++--
target/arm/translate-a64.c| 28 ++-
target/arm/translate-m-nocp.c | 6 ++---
target
Signed-off-by: Richard Henderson
---
v7: Introduce DisasLabel to clean up pc_save frobbing.
Adjust pc_save around tcg_remove_ops_after.
---
target/arm/cpu-param.h| 1 +
target/arm/translate.h| 50 +++-
target/arm/cpu.c | 23
target/arm/tra
A simple helper to retrieve the length of the current insn.
Reviewed-by: Philippe Mathieu-Daudé
Signed-off-by: Richard Henderson
---
target/arm/translate.h | 5 +
target/arm/translate-vfp.c | 2 +-
target/arm/translate.c | 5 ++---
3 files changed, 8 insertions(+), 4 deletions(-)
d
On Wed, Oct 19, 2022 at 8:27 PM Eric Auger wrote:
>
> Since b68ba1ca5767 ("memory: Add IOMMU_NOTIFIER_DEVIOTLB_UNMAP
> IOMMUTLBNotificationType"), vhost attempts to register DEVIOTLB_UNMAP
> notifier. This latter is supported by the intel-iommu which supports
> device-iotlb if the corresponding op
On Wed, Oct 19, 2022 at 10:54 PM Peter Xu wrote:
>
> On Wed, Oct 19, 2022 at 04:12:22PM +0200, Eric Auger wrote:
> > Hi Peter,
> >
> > On 10/19/22 16:01, Peter Xu wrote:
> > > Hi, Eric,
> > >
> > > On Wed, Oct 19, 2022 at 01:24:15PM +0200, Eric Auger wrote:
> > >>> @@ -1484,6 +1485,13 @@ static in
On Wed, Oct 19, 2022 at 8:52 PM Eugenio Pérez wrote:
>
> This entry was duplicated on referenced commit. Removing it.
>
> Fixes: 402378407dbd ("vhost-vdpa: multiqueue support")
> Signed-off-by: Eugenio Pérez
Acked-by: Jason Wang
> ---
> net/vhost-vdpa.c | 1 -
> 1 file changed, 1 deletion(-)
On Fri, Oct 14, 2022 at 9:20 PM Laurent Vivier wrote:
>
> When virtio_net_flush_tx() reaches the tx_burst value all
> the queue is not flushed and nothing restart the timer.
>
> Fix that by doing for TX timer as we do for bottom half TX:
> rearming the timer if we find any packet to send during th
On Wed, Oct 19, 2022 at 8:52 PM Eugenio Pérez wrote:
>
> At this moment only _F_LOG is added there.
>
> However future patches add features that depend on the kind of device.
> In particular, only net devices can add VIRTIO_F_GUEST_ANNOUNCE. So
> let's allow vhost_vdpa creator to set custom emulat
On Wed, Oct 19, 2022 at 8:52 PM Eugenio Pérez wrote:
>
> A gratuitous ARP is recommended after a live migration to reduce the amount of
> time needed by the network links to be aware of the new location.
A question: I think we need to deal with the case when GUSET_ANNOUNCE
is not negotiated? E.d
On Wed, Oct 19, 2022 at 8:52 PM Eugenio Pérez wrote:
>
> At this moment this code path is not reached, but vdpa devices can offer
> VIRTIO_NET_F_STATUS unconditionally.
So I guess what you mean is that, for the parent that doesn't support
VIRTIO_NET_F_STATUS, emulate one for making sure the ANNOU
On Wed, Oct 19, 2022 at 8:52 PM Eugenio Pérez wrote:
>
> The guest will see undefined behavior if it issue not negotiate
> commands, bit it is expected somehow.
>
> Simplify code deleting this check.
>
> Signed-off-by: Eugenio Pérez
Acked-by: Jason Wang
> ---
> net/vhost-vdpa.c | 48 -
On Wed, Oct 19, 2022 at 8:52 PM Eugenio Pérez wrote:
>
> Since this capability is emulated by qemu shadowed CVQ cannot forward it
> to the device.
I wonder what happens for a device that has GUEST_ANNOUNCE support on its own?
> Process all that command within qemu.
>
> Signed-off-by: Eugenio Pér
On Wed, Oct 19, 2022 at 8:52 PM Eugenio Pérez wrote:
>
> Temporal, as this affects other vhost backends and we must check status
> feature first.
>
> Signed-off-by: Eugenio Pérez
> ---
> hw/net/vhost_net.c | 8
> 1 file changed, 8 insertions(+)
>
> diff --git a/hw/net/vhost_net.c b/hw/n
On 10/12/22 01:18, Gavin Shan wrote:
> This introduces virt_get_high_memmap_enabled() helper, which returns
> the pointer to vms->highmem_{redists, ecam, mmio}. The pointer will
> be used in the subsequent patches.
>
> No functional change intended.
>
> Signed-off-by: Gavin Shan
> Tested-by: Zh
> In the ACPI specification [1], the 'unarmed' bit is set when a device
> cannot accept a persistent write. This means that when a memdev is
> read-only, the 'unarmed' flag must be turned on. The logic is correct,
> just changing the error message.
>
> [1] ACPI NFIT NVDIMM Region Mapping Structure
"Christian A. Ehrhardt" writes:
> Fix memset argument order: The second argument is
> the value, the length goes last.
Impact of the bug?
> Cc: Eric DeVolder
> Cc: qemu-sta...@nongnu.org
> Fixes: f7e26ffa590 ("ACPI ERST: support for ACPI ERST feature")
> Signed-off-by: Christian A. Ehrhardt
>
On 19/10/2022 14.56, Christian Borntraeger wrote:
Ilya has volunteered to review TCG patches for s390x.
Signed-off-by: Christian Borntraeger
---
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index e3d5b7e09c46..ae5e8c8ecbb6 100644
--- a/MAINTAINERS
On Thu, Oct 20, 2022 at 6:23 AM Jason Wang wrote:
>
> On Wed, Oct 19, 2022 at 8:52 PM Eugenio Pérez wrote:
> >
> > At this moment only _F_LOG is added there.
> >
> > However future patches add features that depend on the kind of device.
> > In particular, only net devices can add VIRTIO_F_GUEST_A
On Thu, Oct 20, 2022 at 6:30 AM Jason Wang wrote:
>
> On Wed, Oct 19, 2022 at 8:52 PM Eugenio Pérez wrote:
> >
> > At this moment this code path is not reached, but vdpa devices can offer
> > VIRTIO_NET_F_STATUS unconditionally.
>
> So I guess what you mean is that, for the parent that doesn't su
On Wed, Oct 19, 2022 at 12:00 AM Alex Bennée wrote:
>
>
> Bin Meng writes:
>
> > Hi Alex,
> >
> > On Fri, Oct 7, 2022 at 1:31 PM Bin Meng wrote:
> >>
> >> On Fri, Oct 7, 2022 at 4:35 AM Alex Bennée wrote:
> >> >
> >> >
> >> > Bin Meng writes:
> >> >
> >> > > In preparation to adding virtio-9p
On Wed, Oct 19, 2022 at 12:47 AM Alex Bennée wrote:
>
>
> Bin Meng writes:
>
> > From: Xuzhou Cheng
> >
> > Socket communication in the libqtest and libqmp codes uses read()
> > and write() which work on any file descriptor on *nix, and sockets
> > in *nix are an example of a file descriptor.
>
On Wed, Oct 19, 2022 at 11:59 AM Ani Sinha wrote:
>
> On Wed, Oct 19, 2022 at 8:29 AM Ani Sinha wrote:
> >
> > This introduces QEMU acpi/smbios biosbits avocado test which is run
> > from within the python virtual environment. When the bits tests are run,
> > bits
> > binaries are downloaded fro
On Wed, Aug 24, 2022 at 04:52:30PM +0800, Bin Meng wrote:
> From: Bin Meng
>
> Fix the logic in qemu_add_wait_object() to avoid adding the same
> HANDLE twice, as the behavior is undefined when passing an array
> that contains same HANDLEs to WaitForMultipleObjects() API.
Have you encountered th
On Wed, Aug 24, 2022 at 04:52:31PM +0800, Bin Meng wrote:
> From: Bin Meng
>
> WaitForMultipleObjects() can only wait for MAXIMUM_WAIT_OBJECTS
> object handles. Correct the event array size in aio_poll() and
> add a assert() to ensure it does not cause out of bound access.
>
> Signed-off-by: Bin
On Wed, Aug 24, 2022 at 04:52:29PM +0800, Bin Meng wrote:
> From: Bin Meng
>
> The maximum number of wait objects for win32 should be
> MAXIMUM_WAIT_OBJECTS, not MAXIMUM_WAIT_OBJECTS + 1.
>
> Signed-off-by: Bin Meng
> ---
>
> Changes in v3:
> - move the check of adding the same HANDLE twice to
On Tue, Oct 18 2022, Cédric Le Goater wrote:
> On 10/12/22 18:21, Pierre Morel wrote:
>> S390 CPU topology is only allowed for s390-virtio-ccw-7.3 and
>> newer S390 machines.
>> We keep the possibility to disable the topology on these newer
>> machines with the property topology-disable.
>>
>> S
Hi Daniel,
On Wed, Oct 19, 2022 at 4:32 PM Daniel P. Berrangé wrote:
>
> On Wed, Aug 24, 2022 at 04:52:30PM +0800, Bin Meng wrote:
> > From: Bin Meng
> >
> > Fix the logic in qemu_add_wait_object() to avoid adding the same
> > HANDLE twice, as the behavior is undefined when passing an array
> >
When cpu read or write extioi COREISR reg, it should access
the reg belonged to itself, so the cpu index of 's->coreisr'
is current cpu number. Using MemTxAttrs' requester_id to get
the cpu index.
Signed-off-by: Xiaojuan Yang
---
hw/intc/loongarch_extioi.c | 42 ++---
When cpu read or write extioi COREISR reg, it should access
the reg belonged to itself, so the cpu index of 's->coreisr'
is current cpu number. Using MemTxAttrs' requester_id to get
the cpu index.
Changes for v6:
Only using MemTxAttrs' requester_id to get the cpu index
in LoongArch extioi access
On 19/10/2022 09.09, Bin Meng wrote:
On Wed, Oct 19, 2022 at 12:47 AM Alex Bennée wrote:
Bin Meng writes:
From: Xuzhou Cheng
Socket communication in the libqtest and libqmp codes uses read()
and write() which work on any file descriptor on *nix, and sockets
in *nix are an example of a fi
On 19/10/22 10:31, Ani Sinha wrote:
On Wed, Oct 19, 2022 at 11:59 AM Ani Sinha wrote:
On Wed, Oct 19, 2022 at 8:29 AM Ani Sinha wrote:
This introduces QEMU acpi/smbios biosbits avocado test which is run
from within the python virtual environment. When the bits tests are run, bits
binaries ar
Hi Stefano,
On 19/10/2022 01:15, Stefano Stabellini wrote:
On Tue, 18 Oct 2022, Julien Grall wrote:
On 18/10/2022 02:26, Stefano Stabellini wrote:
On Sun, 16 Oct 2022, Julien Grall wrote:
Hi,
There seem to be some missing patches on xen-devel (including the cover
letter). Is that expected?
On Thu, Oct 13, 2022 at 02:59:04PM -0400, Stefan Hajnoczi wrote:
Emulated devices and other BlockBackend users wishing to take advantage
of blk_register_buf() all have the same repetitive job: register
RAMBlocks with the BlockBackend using RAMBlockNotifier.
Add a BlockRAMRegistrar API to do this
On Thu, Oct 13, 2022 at 02:58:57PM -0400, Stefan Hajnoczi wrote:
libblkio (https://gitlab.com/libblkio/libblkio/) is a library for
high-performance disk I/O. It currently supports io_uring,
virtio-blk-vhost-user, and virtio-blk-vhost-vdpa with additional drivers
under development.
One of the rea
I reviewed some patches (the others I do not feel confident of my
knowledge). But I think we are in a very good shape and can merge from
my point of view.
Thanks again for this work,
Stefano
On Thu, Oct 13, 2022 at 02:58:55PM -0400, Stefan Hajnoczi wrote:
v7:
- Add nvme-io_uring and virtio-bl
On Tue, 18 Oct 2022 14:26:41 -0700
"Viacheslav A.Dubeyko" wrote:
> Hi Jonathan,
>
> > On Oct 13, 2022, at 8:09 AM, Jonathan Cameron
> > wrote:
> >
>
>
>
> >> So, I would like to contribute to QEMU emulation of CXL memory
> >> support. And I would like to see a TODO list. I hope this list
On Thu, Oct 13, 2022 at 02:59:08PM -0400, Stefan Hajnoczi wrote:
Register guest RAM using BlockRAMRegistrar and set the
BDRV_REQ_REGISTERED_BUF flag so block drivers can optimize memory
accesses in I/O requests.
This is for vdpa-blk, vhost-user-blk, and other I/O interfaces that rely
on DMA mapp
On Thu, Oct 13, 2022 at 02:59:07PM -0400, Stefan Hajnoczi wrote:
Avoid bounce buffers when QEMUIOVector elements are within previously
registered bdrv_register_buf() buffers.
The idea is that emulated storage controllers will register guest RAM
using bdrv_register_buf() and set the BDRV_REQ_REGI
On Wed, Oct 19, 2022 at 3:05 PM Philippe Mathieu-Daudé
wrote:
>
> >>> +List,
> >>> +Optional,
> >>> +Sequence,
> >>> +)
> >>> +from qemu.machine import QEMUMachine
> >>> +from avocado import skipIf
> >>> +from avocado_qemu import QemuBaseTest
>
> >>> +@skipIf(os.getenv('GITLAB_CI'), 'R
From: Bin Meng
Fix the logic in qemu_add_wait_object() to avoid adding the same
HANDLE twice, as the behavior is undefined when passing an array
that contains same HANDLEs to WaitForMultipleObjects() API.
Signed-off-by: Bin Meng
---
(no changes since v3)
Changes in v3:
- new patch: avoid addi
From: Bin Meng
WaitForMultipleObjects() can only wait for MAXIMUM_WAIT_OBJECTS
object handles. Correct the event array size in aio_poll() and
add a assert() to ensure it does not cause out of bound access.
Signed-off-by: Bin Meng
Reviewed-by: Stefan Weil
Reviewed-by: Marc-André Lureau
Reviewe
From: Bin Meng
The maximum number of wait objects for win32 should be
MAXIMUM_WAIT_OBJECTS, not MAXIMUM_WAIT_OBJECTS + 1.
Signed-off-by: Bin Meng
---
Changes in v4:
- make the out of bounds access protection explicit
Changes in v3:
- move the check of adding the same HANDLE twice to a separet
On 27/9/22 16:14, Alex Bennée wrote:
Although most KVM users will use the in-kernel GIC emulation it is
perfectly possible not to. In this case we need to ensure the
MemTxAttrs are correctly populated so the GIC can divine the source
CPU of the operation.
Signed-off-by: Alex Bennée
---
v3
-
On 27/9/22 16:14, Alex Bennée wrote:
This removes the hacks to deal with empty current_cpu.
Reviewed-by: Richard Henderson
Signed-off-by: Alex Bennée
---
v2
- update for new fields
- bool asserts
---
hw/timer/arm_mptimer.c | 25 ++---
1 file changed, 14 insertions
On 27/9/22 16:15, Alex Bennée wrote:
This is in preparation of future refactoring as well as cleaning up
the source tree. Aside from the minor tweaks to meson and trace.h this
is pure code motion.
Reviewed-by: Richard Henderson
Signed-off-by: Alex Bennée
---
meson.build|
On 27/9/22 16:15, Alex Bennée wrote:
Signed-off-by: Alex Bennée
---
include/sysemu/kvm.h | 16
accel/kvm/kvm-all.c| 6 --
accel/stubs/kvm-stub.c | 5 -
3 files changed, 16 insertions(+), 11 deletions(-)
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm
On 19/10/22 11:15, Xiaojuan Yang wrote:
When cpu read or write extioi COREISR reg, it should access
"When the CPU reads or writes ..."
the reg belonged to itself, so the cpu index of 's->coreisr'
is current cpu number. Using MemTxAttrs' requester_id to get
the cpu index.
Signed-off-by: Xiaoj
Hi Peter,
On 10/18/22 23:54, Peter Xu wrote:
> All x86 IOMMUs need to fail DEVIOTLB notification registrations if DT is
> not supported. Otherwise any device (e.g. vhost) can register with
> DEVIOTLB but it'll never receive the notifications, causing device not
> operational.
>
> Fixes: b68ba1ca5
Hi Peter,
On 10/18/22 23:56, Peter Xu wrote:
> On Tue, Oct 18, 2022 at 05:08:19PM +0200, Eric Auger wrote:
>> Hi Peter,
>>
>> On 10/18/22 16:25, Peter Xu wrote:
>>> Hi, Eric,
>>>
>>> On Tue, Oct 18, 2022 at 02:28:52PM +0200, Eric Auger wrote:
Since b68ba1ca5767 ("memory: Add IOMMU_NOTIFIER_DE
The s390x EXecute instruction is a bit weird as we synthesis the
executed instruction from what we have stored in memory. When plugins
are enabled this breaks because we detect the ld_code2() loading from
a non zero offset without the rest of the instruction being there.
Work around this with a sp
On 2022/10/18 13:22, Richard Henderson wrote:
On 10/18/22 01:27, LIU Zhiwei wrote:
Maybe I can run RISU on qemu-aarch64(x86) and qemu-aarch64(risc-v) to
check the RISC-V backend.
This is a good start for debugging a tcg backend.
After fixing some bugs, RISU can run some instructions now.
On Thu, Sep 15, 2022 at 8:04 PM Chao Peng wrote:
>
> From: "Kirill A. Shutemov"
>
> KVM can use memfd-provided memory for guest memory. For normal userspace
> accessible memory, KVM userspace (e.g. QEMU) mmaps the memfd into its
> virtual address space and then tells KVM to use the virtual addres
Since b68ba1ca5767 ("memory: Add IOMMU_NOTIFIER_DEVIOTLB_UNMAP
IOMMUTLBNotificationType"), vhost attempts to register DEVIOTLB_UNMAP
notifier. This latter is supported by the intel-iommu which supports
device-iotlb if the corresponding option is set. Then 958ec334bca3
("vhost: Unbreak SMMU and virt
On 14.10.22 15:47, David Hildenbrand wrote:
This is a follow-up on "util: NUMA aware memory preallocation" [1] by
Michal.
Setting the CPU affinity of threads from inside QEMU usually isn't
easily possible, because we don't want QEMU -- once started and running
guest code -- to be able to mess up
On 18.10.22 18:49, Michael S. Tsirkin wrote:
On Tue, Oct 18, 2022 at 06:17:55PM +0200, Philippe Mathieu-Daudé wrote:
On 18/10/22 17:25, Julia Suvorova wrote:
In the ACPI specification [1], the 'unarmed' bit is set when a device
cannot accept a persistent write. This means that when a memdev is
Philippe Mathieu-Daudé writes:
> The amsat.org domain is having issues with DMARC / SPF / DKIM:
> https://lore.kernel.org/qemu-devel/CAMVc7JUy5NeEN0q=4zfZvn_rppgqn9wicV1z=tsluhks3ry...@mail.gmail.com/
>
> Consolidate all of my MAINTAINERS entries on my work address.
>
> Signed-off-by: Philippe Ma
Temporal, as this affects other vhost backends and we must check status
feature first.
Signed-off-by: Eugenio Pérez
---
hw/net/vhost_net.c | 8
1 file changed, 8 insertions(+)
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index 5660606c1d..300f370e2a 100644
--- a/hw/net/vhost_ne
From: "Lucas Mateus Castro (alqotel)"
Moved XVTSTDCSP and XVTSTDCDP to decodetree an restructured the helper
to be simpler and do all decoding in the decodetree (so XB, XT and DCMX
are all calculated outside the helper).
Obs: The tests in this one are slightly different, these are the sum of
the
Since this capability is emulated by qemu shadowed CVQ cannot forward it
to the device. Process all that command within qemu.
Signed-off-by: Eugenio Pérez
---
net/vhost-vdpa.c | 15 ---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
From: "Lucas Mateus Castro (alqotel)"
Moved XVCPSGNSP and XVCPSGNDP to decodetree and used gvec to translate
them.
xvcpsgnsp:
reptloopmaster patch
8 12500 0,00561400 0,00537900 (-4.2%)
25 40000,00562100 0,0040 (-28.8%)
100 10000,00
From: "Lucas Mateus Castro (alqotel)"
This patch moves VMLADDUHM to decodetree a creates a gvec implementation
using mul_vec and add_vec.
reptloopmaster patch
8 12500 0,01810500 0,00903100 (-50.1%)
25 40000,01739400 0,00747700 (-57.0%)
100
A gratuitous ARP is recommended after a live migration to reduce the amount of
time needed by the network links to be aware of the new location. A hypervisor
may not have the knowledge of the guest network configuration, and this is
especially true on passthrough devices, so its simpler to ask the
From: "Lucas Mateus Castro (alqotel)"
Patches missing review: 12
v2 -> v3:
- Used ctpop in i32 and i64 vprtyb
- Changed gvec set up in xvtstdc[ds]p
v1 -> v2:
- Implemented instructions with fni4/fni8 and dropped the helper:
* VSUBCUW
* VADDCUW
* VPRTYBW
From: "Lucas Mateus Castro (alqotel)"
This patch moves VMHADDSHS and VMHRADDSHS to decodetree I couldn't find
a satisfactory implementation with TCG inline.
vmhaddshs:
reptloopmaster patch
8 12500 0,02983400 0,02648500 (-11.2%)
25 40000,02946000
At this moment this code path is not reached, but vdpa devices can offer
VIRTIO_NET_F_STATUS unconditionally. While the guest must assume that
link is always up by the standard, qemu will set the status bit to 1
always in this case.
This makes little use by itself, but VIRTIO_NET_F_STATUS is neede
From: "Lucas Mateus Castro (alqotel)"
Moved the instructions VNEGW and VNEGD to decodetree and used gvec to
decode it.
vnegw:
reptloopmaster patch
8 12500 0,01053200 0,00548400 (-47.9%)
25 40000,01030500 0,0039 (-62.2%)
100 10000,0
Now that qemu can handle and emulate it if the vdpa backend does not
support it we can offer it always.
Signed-off-by: Eugenio Pérez
---
net/vhost-vdpa.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 3803452800..fca21d5b79 100644
--- a/net/vhost
From: "Lucas Mateus Castro (alqotel)"
Moved VPRTYBW and VPRTYBD to use gvec and both of them and VPRTYBQ to
decodetree. VPRTYBW and VPRTYBD now also use .fni4 and .fni8,
respectively.
vprtybw:
reptloopmaster patch
8 12500 0,01198900 0,00703100 (-41.4%)
25
This entry was duplicated on referenced commit. Removing it.
Fixes: 402378407dbd ("vhost-vdpa: multiqueue support")
Signed-off-by: Eugenio Pérez
---
net/vhost-vdpa.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 4bc3fd01a8..eebf29f5c1 100644
--- a/n
From: "Lucas Mateus Castro (alqotel)"
Moved the instructions VAVGUB, VAVGUH, VAVGUW, VAVGSB, VAVGSH, VAVGSW,
to decodetree and use gvec with them. For these one the right shift
had to be made before the sum as to avoid an overflow, so add 1 at the
end if any of the entries had 1 in its LSB as to
From: "Lucas Mateus Castro (alqotel)"
Moved VABSDUB, VABSDUH and VABSDUW to decodetree and use gvec to
translate them.
vabsdub:
reptloopmaster patch
8 12500 0,03601600 0,00688500 (-80.9%)
25 40000,03651000 0,00532100 (-85.4%)
100 10000
From: "Lucas Mateus Castro (alqotel)"
Moved XVABSSP, XVABSDP, XVNABSSP,XVNABSDP, XVNEGSP and XVNEGDP to
decodetree and used gvec to translate them.
xvabssp:
reptloopmaster patch
8 12500 0,00477900 0,00476000 (-0.4%)
25 40000,00442800 0,0035330
So qemu emulates it in case the device does not support it.
Signed-off-by: Eugenio Pérez
---
net/vhost-vdpa.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 5fda405a66..64442e8455 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -566,6 +56
Ilya has volunteered to review TCG patches for s390x.
Signed-off-by: Christian Borntraeger
---
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index e3d5b7e09c46..ae5e8c8ecbb6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -305,6 +305,7 @@ F: target/rx/
On Wed, 2022-10-19 at 14:56 +0200, Christian Borntraeger wrote:
> Ilya has volunteered to review TCG patches for s390x.
>
> Signed-off-by: Christian Borntraeger
> ---
> MAINTAINERS | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index e3d5b7e09c46..ae5e8c8ec
From: "Lucas Mateus Castro (alqotel)"
Moved XSTSTDCSP, XSTSTDCDP and XSTSTDCQP to decodetree and moved some of
its decoding away from the helper as previously the DCMX, XB and BF were
calculated in the helper with the help of cpu_env, now that part was
moved to the decodetree with the rest.
xvts
The guest will see undefined behavior if it issue not negotiate
commands, bit it is expected somehow.
Simplify code deleting this check.
Signed-off-by: Eugenio Pérez
---
net/vhost-vdpa.c | 48
1 file changed, 48 deletions(-)
diff --git a/net/vho
1 - 100 of 191 matches
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