Makes the south bridges a bit more self-contained and aligns PIIX3 more with
PIIX4. The latter is needed for consolidating the PIIX south bridges.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-11-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Thie PIIX3 south bridge implements both the PIC and the ISA bus, so wiring the
interrupts there makes the device model more self-contained. Furthermore, this
allows the ISA interrupts to be wired to internal child devices in
pci_piix3_realize() which will be performed in subsequent patches.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-10-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When the board assigns the ISA IRQs after the device's realize(), internal
devices such as the RTC can't be wired in ich9_lpc_realize() since the qemu_irqs
are still NULL. Fix that by assigning the ISA interrupts before realize().
This change is necessary for PIIX consolidation because PIIX4 wires the RTC
interrupts in its realize() method, so PIIX3 needs to do so as well. Since the
PC and Q35 boards share RTC code, and since PIIX3 needs the change, ICH9 needs
to be adapted as well.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-9-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
TYPE_PIIX3_DEVICE doesn't instantiate a PIC since it relies on the board to do
so. The "pic" attribute, however, suggests that there is one. Rename the
attribute to reflect that it represents ISA interrupt lines. Use the same naming
convention as in the VIA south bridges as well as in TYPE_I82378.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-8-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The variable is never used by its declared type. Eliminate it.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-7-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Avoid assigning the private member of struct PIIX3State from outside which goes
against best QOM practices. Instead, implement best QOM practice by adding an
"isa-irqs" array property to TYPE_PIIX3_DEVICE and assign it in board code, i.e.
from outside.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-6-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
PIIX_NUM_PIC_IRQS is assumed to be the same as ISA_NUM_IRQS, otherwise
inconsistencies can occur.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20231007123843.127151-5-shentey@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Unlike its PIIX4 counterpart, TYPE_PIIX3_DEVICE doesn't instantiate a PIC
itself. Instead, it relies on the board to do so. This means that the board
needs to wire the ISA IRQs to the PIIX3 device model. As long as the board
assigns the ISA IRQs after PIIX3's realize(), internal devices can't be wired in
pci_piix3_realize() since the qemu_irqs are still NULL. Fix that by assigning
the ISA interrupts before realize(). This will allow for embedding child devices
into the host device as already done for PIIX4.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-4-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The next patches will need to take advantage of it.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20231007123843.127151-3-shentey@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
By being the only entity assigning a non-NULL value to "rtc_irq", the first if
statement determines whether the second if statement is executed. So merge the
two statements into one.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20231007123843.127151-2-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When the given uuid is already present in the hash table,
virtio_add_resource() does not add the passed VirtioSharedObject. In
this case, free it in the callers to avoid leaking memory. This fixed
the following `make check` error, when built with --enable-sanitizers:
4/166 qemu:unit / test-virtio-dmabuf ERROR 1.51s exit status 1
==7716==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 320 byte(s) in 20 object(s) allocated from:
#0 0x7f6fc16e3808 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:144
#1 0x7f6fc1503e98 in g_malloc (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x57e98)
#2 0x564d63cafb6b in test_add_invalid_resource ../tests/unit/test-virtio-dmabuf.c:100
#3 0x7f6fc152659d (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x7a59d)
SUMMARY: AddressSanitizer: 320 byte(s) leaked in 20 allocation(s).
The changes at virtio_add_resource() itself are not strictly necessary
for the memleak fix, but they make it more obvious that, on an error
return, the passed object is not added to the hash.
Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Message-Id: <c61c13f9a0c67dec473bdbfc8789c29ef26c900b.1696624734.git.quic_mathbern@quicinc.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Albert Esteve <aesteve@redhat.com>
Signed-off-by: Matheus Tavares Bernardino <<a href="mailto:quic_mathbern@quicinc.com" target="_blank">quic_mathbern@quicinc.com</a>><br>
Currently, the one-shot (mode 1) PIT expires far too quickly,
due to the output being set under the wrong logic.
This change fixes the one-shot PIT mode to behave similarly to mode 0.
TESTED: using the one-shot PIT mode to calibrate a local apic timer.
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Message-Id: <20230226015755.52624-1-damien@zamaudio.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Commit 6103451aeb ("hw/i386: Build-time assertion on pc/q35 reset register
being identical.") introduced a build-time check where the addresses of the
reset registers are expected to be equal. Back then rev3 of the FADT was used
which required the reset register to be populated and there was common code.
In commit 3a3fcc75f9 ("pc: acpi: force FADT rev1 for 440fx based machine
types") the FADT was downgraded to rev1 for PIIX where the reset register isn't
available. Thus, there is no need for the assertion any longer, so remove it.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Ani Sinha <anisinha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20231004092355.12929-1-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
vhost-user-scsi has a VirtioDeviceClass->reset() function that calls
->vhost_reset_device(). The other vhost devices don't notify the vhost
device upon reset.
Stateful vhost devices may need to handle device reset in order to free
resources or prevent stale device state from interfering after reset.
Call ->vhost_device_reset() from virtio_reset() so that that vhost
devices are notified of device reset.
This patch affects behavior as follows:
- vhost-kernel: No change in behavior since ->vhost_reset_device() is
not implemented.
- vhost-user: back-ends that negotiate
VHOST_USER_PROTOCOL_F_RESET_DEVICE now receive a
VHOST_USER_DEVICE_RESET message upon device reset. Otherwise there is
no change in behavior. DPDK, SPDK, libvhost-user, and the
vhost-user-backend crate do not negotiate
VHOST_USER_PROTOCOL_F_RESET_DEVICE automatically.
- vhost-vdpa: an extra SET_STATUS 0 call is made during device reset.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20231004014532.1228637-4-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
vhost_kernel_reset_device() invokes RESET_OWNER, which disassociates the
owner process from the device. The device is left non-operational since
SET_OWNER is only called once during startup in vhost_dev_init().
vhost_kernel_reset_device() is never called so this latent bug never
appears. Get rid of vhost_kernel_reset_device() for now. If someone
needs it in the future they'll need to implement it correctly.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20231004014532.1228637-3-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
The VHOST_USER_RESET_OWNER message is deprecated in the spec:
This is no longer used. Used to be sent to request disabling all
rings, but some back-ends interpreted it to also discard connection
state (this interpretation would lead to bugs). It is recommended
that back-ends either ignore this message, or use it to disable all
rings.
The only caller of vhost_user_reset_device() is vhost_user_scsi_reset().
It checks that F_RESET_DEVICE was negotiated before calling it:
static void vhost_user_scsi_reset(VirtIODevice *vdev)
{
VHostSCSICommon *vsc = VHOST_SCSI_COMMON(vdev);
struct vhost_dev *dev = &vsc->dev;
/*
* Historically, reset was not implemented so only reset devices
* that are expecting it.
*/
if (!virtio_has_feature(dev->protocol_features,
VHOST_USER_PROTOCOL_F_RESET_DEVICE)) {
return;
}
if (dev->vhost_ops->vhost_reset_device) {
dev->vhost_ops->vhost_reset_device(dev);
}
}
Therefore VHOST_USER_RESET_OWNER is actually never sent by
vhost_user_reset_device(). Remove the dead code. This effectively moves
the vhost-user protocol specific code from vhost-user-scsi.c into
vhost-user.c where it belongs.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20231004014532.1228637-2-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Coverity scan reports multiple false-positive "defects" for the
following series of actions in virtio.c:
MemoryRegionCache indirect_desc_cache;
address_space_cache_init_empty(&indirect_desc_cache);
address_space_cache_destroy(&indirect_desc_cache);
For some reason it's unable to recognize the dependency between 'mrs.mr'
and 'fv' and insists that '!mrs.mr' check in address_space_cache_destroy
may take a 'false' branch, even though it is explicitly initialized to
NULL in the address_space_cache_init_empty():
*** CID 1522371: Memory - illegal accesses (UNINIT)
/qemu/hw/virtio/virtio.c: 1627 in virtqueue_split_pop()
1621 }
1622
1623 vq->inuse++;
1624
1625 trace_virtqueue_pop(vq, elem, elem->in_num, elem->out_num);
1626 done:
>>> CID 1522371: Memory - illegal accesses (UNINIT)
>>> Using uninitialized value "indirect_desc_cache.fv" when
>>> calling "address_space_cache_destroy".
1627 address_space_cache_destroy(&indirect_desc_cache);
1628
1629 return elem;
1630
1631 err_undo_map:
1632 virtqueue_undo_map_desc(out_num, in_num, iov);
** CID 1522370: Memory - illegal accesses (UNINIT)
Instead of trying to silence these false positive reports in 4
different places, initializing 'fv' as well, as this doesn't result
in any noticeable performance impact.
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Message-Id: <20231009104322.3085887-1-i.maximets@ovn.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
(1) The virtio-1.2 specification
<http://docs.oasis-open.org/virtio/virtio/v1.2/virtio-v1.2.html> writes:
> 3 General Initialization And Device Operation
> 3.1 Device Initialization
> 3.1.1 Driver Requirements: Device Initialization
>
> [...]
>
> 7. Perform device-specific setup, including discovery of virtqueues for
> the device, optional per-bus setup, reading and possibly writing the
> device’s virtio configuration space, and population of virtqueues.
>
> 8. Set the DRIVER_OK status bit. At this point the device is “live”.
and
> 4 Virtio Transport Options
> 4.1 Virtio Over PCI Bus
> 4.1.4 Virtio Structure PCI Capabilities
> 4.1.4.3 Common configuration structure layout
> 4.1.4.3.2 Driver Requirements: Common configuration structure layout
>
> [...]
>
> The driver MUST configure the other virtqueue fields before enabling the
> virtqueue with queue_enable.
>
> [...]
(The same statements are present in virtio-1.0 identically, at
<http://docs.oasis-open.org/virtio/virtio/v1.0/virtio-v1.0.html>.)
These together mean that the following sub-sequence of steps is valid for
a virtio-1.0 guest driver:
(1.1) set "queue_enable" for the needed queues as the final part of device
initialization step (7),
(1.2) set DRIVER_OK in step (8),
(1.3) immediately start sending virtio requests to the device.
(2) When vhost-user is enabled, and the VHOST_USER_F_PROTOCOL_FEATURES
special virtio feature is negotiated, then virtio rings start in disabled
state, according to
<https://qemu-project.gitlab.io/qemu/interop/vhost-user.html#ring-states>.
In this case, explicit VHOST_USER_SET_VRING_ENABLE messages are needed for
enabling vrings.
Therefore setting "queue_enable" from the guest (1.1) -- which is
technically "buffered" on the QEMU side until the guest sets DRIVER_OK
(1.2) -- is a *control plane* operation, which -- after (1.2) -- travels
from the guest through QEMU to the vhost-user backend, using a unix domain
socket.
Whereas sending a virtio request (1.3) is a *data plane* operation, which
evades QEMU -- it travels from guest to the vhost-user backend via
eventfd.
This means that operations ((1.1) + (1.2)) and (1.3) travel through
different channels, and their relative order can be reversed, as perceived
by the vhost-user backend.
That's exactly what happens when OVMF's virtiofs driver (VirtioFsDxe) runs
against the Rust-language virtiofsd version 1.7.2. (Which uses version
0.10.1 of the vhost-user-backend crate, and version 0.8.1 of the vhost
crate.)
Namely, when VirtioFsDxe binds a virtiofs device, it goes through the
device initialization steps (i.e., control plane operations), and
immediately sends a FUSE_INIT request too (i.e., performs a data plane
operation). In the Rust-language virtiofsd, this creates a race between
two components that run *concurrently*, i.e., in different threads or
processes:
- Control plane, handling vhost-user protocol messages:
The "VhostUserSlaveReqHandlerMut::set_vring_enable" method
[crates/vhost-user-backend/src/handler.rs] handles
VHOST_USER_SET_VRING_ENABLE messages, and updates each vring's "enabled"
flag according to the message processed.
- Data plane, handling virtio / FUSE requests:
The "VringEpollHandler::handle_event" method
[crates/vhost-user-backend/src/event_loop.rs] handles the incoming
virtio / FUSE request, consuming the virtio kick at the same time. If
the vring's "enabled" flag is set, the virtio / FUSE request is
processed genuinely. If the vring's "enabled" flag is clear, then the
virtio / FUSE request is discarded.
Note that OVMF enables the queue *first*, and sends FUSE_INIT *second*.
However, if the data plane processor in virtiofsd wins the race, then it
sees the FUSE_INIT *before* the control plane processor took notice of
VHOST_USER_SET_VRING_ENABLE and green-lit the queue for the data plane
processor. Therefore the latter drops FUSE_INIT on the floor, and goes
back to waiting for further virtio / FUSE requests with epoll_wait.
Meanwhile OVMF is stuck waiting for the FUSET_INIT response -- a deadlock.
The deadlock is not deterministic. OVMF hangs infrequently during first
boot. However, OVMF hangs almost certainly during reboots from the UEFI
shell.
The race can be "reliably masked" by inserting a very small delay -- a
single debug message -- at the top of "VringEpollHandler::handle_event",
i.e., just before the data plane processor checks the "enabled" field of
the vring. That delay suffices for the control plane processor to act upon
VHOST_USER_SET_VRING_ENABLE.
We can deterministically prevent the race in QEMU, by blocking OVMF inside
step (1.2) -- i.e., in the write to the device status register that
"unleashes" queue enablement -- until VHOST_USER_SET_VRING_ENABLE actually
*completes*. That way OVMF's VCPU cannot advance to the FUSE_INIT
submission before virtiofsd's control plane processor takes notice of the
queue being enabled.
Wait for VHOST_USER_SET_VRING_ENABLE completion by:
- setting the NEED_REPLY flag on VHOST_USER_SET_VRING_ENABLE, and waiting
for the reply, if the VHOST_USER_PROTOCOL_F_REPLY_ACK vhost-user feature
has been negotiated, or
- performing a separate VHOST_USER_GET_FEATURES *exchange*, which requires
a backend response regardless of VHOST_USER_PROTOCOL_F_REPLY_ACK.
Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:vhost)
Cc: Eugenio Perez Martin <eperezma@redhat.com>
Cc: German Maglione <gmaglione@redhat.com>
Cc: Liu Jiang <gerry@linux.alibaba.com>
Cc: Sergio Lopez Pascual <slp@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Albert Esteve <aesteve@redhat.com>
[lersek@redhat.com: work Eugenio's explanation into the commit message,
about QEMU containing step (1.1) until step (1.2)]
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20231002203221.17241-8-lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The "vhost_set_vring" function already centralizes the common parts of
"vhost_user_set_vring_num", "vhost_user_set_vring_base" and
"vhost_user_set_vring_enable". We'll want to allow some of those callers
to wait for a reply.
Therefore, rebase "vhost_set_vring" from just "vhost_user_write" to
"vhost_user_write_sync", exposing the "wait_for_reply" parameter.
This is purely refactoring -- there is no observable change. That's
because:
- all three callers pass in "false" for "wait_for_reply", which disables
all logic in "vhost_user_write_sync" except the call to
"vhost_user_write";
- the fds=NULL and fd_num=0 arguments of the original "vhost_user_write"
call inside "vhost_set_vring" are hard-coded within
"vhost_user_write_sync".
Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:vhost)
Cc: Eugenio Perez Martin <eperezma@redhat.com>
Cc: German Maglione <gmaglione@redhat.com>
Cc: Liu Jiang <gerry@linux.alibaba.com>
Cc: Sergio Lopez Pascual <slp@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Albert Esteve <aesteve@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20231002203221.17241-7-lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
In order to avoid a forward-declaration for "vhost_user_write_sync" in a
subsequent patch, hoist "vhost_user_write_sync" ->
"vhost_user_get_features" -> "vhost_user_get_u64" just above
"vhost_set_vring".
This is purely code movement -- no observable change.
Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:vhost)
Cc: Eugenio Perez Martin <eperezma@redhat.com>
Cc: German Maglione <gmaglione@redhat.com>
Cc: Liu Jiang <gerry@linux.alibaba.com>
Cc: Sergio Lopez Pascual <slp@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Albert Esteve <aesteve@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20231002203221.17241-6-lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
At this point, only "vhost_user_write_sync" calls "enforce_reply"; embed
the latter into the former.
This is purely refactoring -- no observable change.
Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:vhost)
Cc: Eugenio Perez Martin <eperezma@redhat.com>
Cc: German Maglione <gmaglione@redhat.com>
Cc: Liu Jiang <gerry@linux.alibaba.com>
Cc: Sergio Lopez Pascual <slp@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Albert Esteve <aesteve@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20231002203221.17241-5-lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The tails of the "vhost_user_set_vring_addr" and "vhost_user_set_u64"
functions are now byte-for-byte identical. Factor the common tail out to a
new function called "vhost_user_write_sync".
This is purely refactoring -- no observable change.
Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:vhost)
Cc: Eugenio Perez Martin <eperezma@redhat.com>
Cc: German Maglione <gmaglione@redhat.com>
Cc: Liu Jiang <gerry@linux.alibaba.com>
Cc: Sergio Lopez Pascual <slp@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Albert Esteve <aesteve@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20231002203221.17241-4-lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
In the vhost_user_set_vring_addr() function, we calculate
"reply_supported" unconditionally, even though we'll only need it if
"wait_for_reply" is also true.
Restrict the scope of "reply_supported" to the minimum.
This is purely refactoring -- no observable change.
Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:vhost)
Cc: Eugenio Perez Martin <eperezma@redhat.com>
Cc: German Maglione <gmaglione@redhat.com>
Cc: Liu Jiang <gerry@linux.alibaba.com>
Cc: Sergio Lopez Pascual <slp@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Tested-by: Albert Esteve <aesteve@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20231002203221.17241-3-lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The or1k-sim machine is the only one using the ompic, so let's add
this file to the corresponding sections in the MAINTAINERS file.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
It's a .c file, not a header!
Fixes: ff8cdbbd7e ("MAINTAINERS: Add information for OpenPIC")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Some subfolders in tests/tcg/ are already listed in the MAINTAINERS
file, some others aren't listed yet. Add the missing ones now to the
MAINTAINERS file, too, to make sure that get_maintainers.pl reports
the correct maintainer.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The hw/ppc/fw_cfg.c file contains the implementation of
fw_cfg_arch_key_name(), used by the common nvram model. List it under
mac99 machine next to the mac_nvram model.
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The fdt.{c.h} files provide a helper routine used by the pseries and
pnv machines. Attached it to the list of the larger one: pseries.
Protected Execution Facility (PEF) is the confidential guest support
for PPC pseries machines.
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
These are simple typos, since the directories don't exist but the
files themselves do in hw/s390x/
Fixes: 56e3483402 ("MAINTAINERS: split out s390x sections")
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This doc file obviously belongs to the EBPF section.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
i8259.c is already listed here, so the corresponding header should
be mentioned in this section, too.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
These files obviously belong to the nios2 target, so they should
be listed in the nios2 section in the MAINTAINERS file.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
hw/ppc/ppc440_uc.c implements the TYPE_PPC460EX_PCIE_HOST
device, which is used by the aCube Sam460ex board.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Apparently l2sram_update_mappings() bit-rotted over time,
when defining MAP_L2SRAM we get:
hw/ppc/ppc440_uc.c:83:17: error: no member named 'isarc' in 'struct ppc4xx_l2sram_t'
if (l2sram->isarc != isarc ||
~~~~~~ ^
hw/ppc/ppc440_uc.c:84:18: error: no member named 'isacntl' in 'struct ppc4xx_l2sram_t'
(l2sram->isacntl & 0x80000000) != (isacntl & 0x80000000)) {
~~~~~~ ^
hw/ppc/ppc440_uc.c:85:21: error: no member named 'isacntl' in 'struct ppc4xx_l2sram_t'
if (l2sram->isacntl & 0x80000000) {
~~~~~~ ^
hw/ppc/ppc440_uc.c:88:50: error: no member named 'isarc_ram' in 'struct ppc4xx_l2sram_t'
&l2sram->isarc_ram);
~~~~~~ ^
hw/ppc/ppc440_uc.c:93:50: error: no member named 'isarc_ram' in 'struct ppc4xx_l2sram_t'
&l2sram->isarc_ram);
~~~~~~ ^
hw/ppc/ppc440_uc.c:96:17: error: no member named 'dsarc' in 'struct ppc4xx_l2sram_t'
if (l2sram->dsarc != dsarc ||
~~~~~~ ^
hw/ppc/ppc440_uc.c:97:18: error: no member named 'dsacntl' in 'struct ppc4xx_l2sram_t'
(l2sram->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) {
~~~~~~ ^
hw/ppc/ppc440_uc.c:98:21: error: no member named 'dsacntl' in 'struct ppc4xx_l2sram_t'
if (l2sram->dsacntl & 0x80000000) {
~~~~~~ ^
hw/ppc/ppc440_uc.c💯52: error: no member named 'dsarc' in 'struct ppc4xx_l2sram_t'
if (!(isacntl & 0x80000000) || l2sram->dsarc != isarc) {
~~~~~~ ^
hw/ppc/ppc440_uc.c:103:54: error: no member named 'dsarc_ram' in 'struct ppc4xx_l2sram_t'
&l2sram->dsarc_ram);
~~~~~~ ^
hw/ppc/ppc440_uc.c:111:54: error: no member named 'dsarc_ram' in 'struct ppc4xx_l2sram_t'
&l2sram->dsarc_ram);
~~~~~~ ^
Remove that dead code.
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
In query_port() we pass the address of a local pvrdma_port_attr
struct to the rdma_query_backend_port() function. Unfortunately,
rdma_backend_query_port() wants a pointer to a struct ibv_port_attr,
and the two are not the same length.
Coverity spotted this (CID 1507146): pvrdma_port_attr is 48 bytes
long, and ibv_port_attr is 52 bytes, because it has a few extra
fields at the end.
Fortunately, all we do with the attrs struct after the call is to
read a few specific fields out of it which are all at the same
offsets in both structs, so we can simply make the local variable the
correct type. This also lets us drop the cast (which should have
been a bit of a warning flag that we were doing something wrong
here).
We do however need to add extra casts for the fields of the
struct that are enums: clang will complain about the implicit
cast to a different enum type otherwise.
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This series adds a new PA-RISC machine emulation for the HP-PARISC
C3700 workstation.
The physical HP C3700 machine has a PA2.0 (64-bit) CPU, in contrast to
the existing emulation of a B160L workstation which is a 32-bit only
machine and where it's Dino PCI controller isn't 64-bit capable.
With the HP C3700 machine emulation (together with the emulated Astro
Memory controller and the Elroy PCI bridge) it's now possible to
enhance the hppa CPU emulation to support the 64-bit instruction set
in upcoming patches.
Helge
v4 changes:
- Fix testsuite error in astro by adding a realize() implementation
v3 changes:
based on feedback from BALATON Zoltan <balaton@eik.bme.hu>:
- apply paches in different order to bring them logically closer to each other
- update comments in lasips2
- rephrased title and commit message of MAINTAINERS patch
v2 changes:
suggestions by BALATON Zoltan <balaton@eik.bme.hu>:
- merged pci_ids and tulip patch
- dropped comments in lasips2
- mention additional cleanups in patch "Require at least SeaBIOS-hppa version 10"
suggestions by Philippe Mathieu-Daudé <philmd@linaro.org>:
- dropped static pci_bus variable
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Merge tag 'C3700-pull-request' of https://github.com/hdeller/qemu-hppa into staging
target/hppa: Add emulation of a C3700 HP-PARISC workstation
This series adds a new PA-RISC machine emulation for the HP-PARISC
C3700 workstation.
The physical HP C3700 machine has a PA2.0 (64-bit) CPU, in contrast to
the existing emulation of a B160L workstation which is a 32-bit only
machine and where it's Dino PCI controller isn't 64-bit capable.
With the HP C3700 machine emulation (together with the emulated Astro
Memory controller and the Elroy PCI bridge) it's now possible to
enhance the hppa CPU emulation to support the 64-bit instruction set
in upcoming patches.
Helge
v4 changes:
- Fix testsuite error in astro by adding a realize() implementation
v3 changes:
based on feedback from BALATON Zoltan <balaton@eik.bme.hu>:
- apply paches in different order to bring them logically closer to each other
- update comments in lasips2
- rephrased title and commit message of MAINTAINERS patch
v2 changes:
suggestions by BALATON Zoltan <balaton@eik.bme.hu>:
- merged pci_ids and tulip patch
- dropped comments in lasips2
- mention additional cleanups in patch "Require at least SeaBIOS-hppa version 10"
suggestions by Philippe Mathieu-Daudé <philmd@linaro.org>:
- dropped static pci_bus variable
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# =Esj+
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 19 Oct 2023 15:51:57 PDT
# gpg: using EDDSA key BCE9123E1AD29F07C049BBDEF712B510A23A0F5F
# gpg: Good signature from "Helge Deller <deller@gmx.de>" [unknown]
# gpg: aka "Helge Deller <deller@kernel.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 4544 8228 2CD9 10DB EF3D 25F8 3E5F 3D04 A7A2 4603
# Subkey fingerprint: BCE9 123E 1AD2 9F07 C049 BBDE F712 B510 A23A 0F5F
* tag 'C3700-pull-request' of https://github.com/hdeller/qemu-hppa:
hw/hppa: Add new HP C3700 machine
hw/hppa: Split out machine creation
hw/hppa: Provide RTC and DebugOutputPort on CPU #0
hw/hppa: Export machine name, BTLBs, power-button address via fw_cfg
MAINTAINERS: Update HP-PARISC entries
pci-host: Wire up new Astro/Elroy PCI bridge
hw/pci-host: Add Astro system bus adapter found on PA-RISC machines
lasips2: LASI PS/2 devices are not user-createable
pci_ids/tulip: Add PCI vendor ID for HP and use it in tulip
hw/hppa: Require at least SeaBIOS-hppa version 10
target/hppa: Update to SeaBIOS-hppa version 10
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
- MAINTAINERS updates (Zoltan, Thomas)
- Fix cutils::get_relocated_path on Windows host (Akihiko)
- Housekeeping in Memory APIs (Marc-André)
- SDHCI fix for SDMA transfer (Lu, Jianxian)
- Various QOM/QDev/SysBus cleanups (Philippe)
- Constify QemuInputHandler structure (Philippe)
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Merge tag 'hw-misc-20231019' of https://github.com/philmd/qemu into staging
Misc hardware patch queue
- MAINTAINERS updates (Zoltan, Thomas)
- Fix cutils::get_relocated_path on Windows host (Akihiko)
- Housekeeping in Memory APIs (Marc-André)
- SDHCI fix for SDMA transfer (Lu, Jianxian)
- Various QOM/QDev/SysBus cleanups (Philippe)
- Constify QemuInputHandler structure (Philippe)
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# gpg: Signature made Thu 19 Oct 2023 14:16:16 PDT
# gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE
* tag 'hw-misc-20231019' of https://github.com/philmd/qemu: (46 commits)
ui/input: Constify QemuInputHandler structure
hw/net: Declare link using static DEFINE_PROP_LINK() macro
hw/dma: Declare link using static DEFINE_PROP_LINK() macro
hw/scsi/virtio-scsi: Use VIRTIO_SCSI_COMMON() macro
hw/display/virtio-gpu: Use VIRTIO_DEVICE() macro
hw/block/vhost-user-blk: Use DEVICE() / VIRTIO_DEVICE() macros
hw/virtio/virtio-pmem: Replace impossible check by assertion
hw/s390x/css-bridge: Realize sysbus device before accessing it
hw/isa: Realize ISA bridge device before accessing it
hw/arm/virt: Realize ARM_GICV2M sysbus device before accessing it
hw/acpi: Realize ACPI_GED sysbus device before accessing it
hw/pci-host/bonito: Do not use SysBus API to map local MMIO region
hw/misc/allwinner-dramc: Do not use SysBus API to map local MMIO region
hw/misc/allwinner-dramc: Move sysbus_mmio_map call from init -> realize
hw/i386/intel_iommu: Do not use SysBus API to map local MMIO region
hw/i386/amd_iommu: Do not use SysBus API to map local MMIO region
hw/audio/pcspk: Inline pcspk_init()
hw/intc/spapr_xive: Do not use SysBus API to map local MMIO region
hw/intc/spapr_xive: Move sysbus_init_mmio() calls around
hw/ppc/pnv: Do not use SysBus API to map local MMIO region
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* hw/arm: Move raspberrypi-fw-defs.h to the include/hw/arm/ folder
* hw/arm/exynos4210: Get arm_boot_info declaration from 'hw/arm/boot'
* xlnx devices: remove deprecated device reset
* xlnx-bbram: hw/nvram: Use dot in device type name
* elf2dmp: fix coverity issues
* elf2dmp: convert to g_malloc, g_new and g_free
* target/arm: Fix CNTPCT_EL0 trapping from EL0 when HCR_EL2.E2H is 0
* hw/arm: refactor virt PPI logic
* arm/kvm: convert to kvm_set_one_reg, kvm_get_one_reg
* target/arm: Permit T32 LDM with single register
* smmuv3: Advertise SMMUv3.1-XNX
* target/arm: Implement FEAT_HPMN0
* Remove some unnecessary include lines
* target/arm/arm-powerctl: Correctly init CPUs when powered on to lower EL
* hw/timer/npcm7xx_timer: Prevent timer from counting down past zero
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Merge tag 'pull-target-arm-20231019' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
* hw/arm: Move raspberrypi-fw-defs.h to the include/hw/arm/ folder
* hw/arm/exynos4210: Get arm_boot_info declaration from 'hw/arm/boot'
* xlnx devices: remove deprecated device reset
* xlnx-bbram: hw/nvram: Use dot in device type name
* elf2dmp: fix coverity issues
* elf2dmp: convert to g_malloc, g_new and g_free
* target/arm: Fix CNTPCT_EL0 trapping from EL0 when HCR_EL2.E2H is 0
* hw/arm: refactor virt PPI logic
* arm/kvm: convert to kvm_set_one_reg, kvm_get_one_reg
* target/arm: Permit T32 LDM with single register
* smmuv3: Advertise SMMUv3.1-XNX
* target/arm: Implement FEAT_HPMN0
* Remove some unnecessary include lines
* target/arm/arm-powerctl: Correctly init CPUs when powered on to lower EL
* hw/timer/npcm7xx_timer: Prevent timer from counting down past zero
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# gpg: Signature made Thu 19 Oct 2023 06:34:22 PDT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [unknown]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* tag 'pull-target-arm-20231019' of https://git.linaro.org/people/pmaydell/qemu-arm: (24 commits)
contrib/elf2dmp: Use g_malloc(), g_new() and g_free()
hw/timer/npcm7xx_timer: Prevent timer from counting down past zero
target/arm/arm-powerctl: Correctly init CPUs when powered on to lower EL
target/arm/common-semi-target.h: Remove unnecessary boot.h include
target/arm/kvm64.c: Remove unused include
target/arm: Implement FEAT_HPMN0
hw/arm/smmuv3: Advertise SMMUv3.1-XNX feature
hw/arm/smmuv3: Sort ID register setting into field order
hw/arm/smmuv3: Update ID register bit field definitions
target/arm: Permit T32 LDM with single register
arm/kvm: convert to kvm_get_one_reg
arm/kvm: convert to kvm_set_one_reg
hw/arm/sbsa-ref: use bsa.h for PPI definitions
include/hw/arm: move BSA definitions to bsa.h
{include/}hw/arm: refactor virt PPI logic
target/arm: Fix CNTPCT_EL0 trapping from EL0 when HCR_EL2.E2H is 0
elf2dmp: check array bounds in pdb_get_file_size
elf2dmp: limit print length for sign_rsds
xlnx-bbram: hw/nvram: Use dot in device type name
xlnx-versal-efuse: hw/nvram: Remove deprecated device reset
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Access to QemuInputHandlerState::handler are read-only.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20231017131251.43708-1-philmd@linaro.org>
Declare link statically using DEFINE_PROP_LINK().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20231017140150.44995-7-philmd@linaro.org>
Declare link statically using DEFINE_PROP_LINK().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20231017140150.44995-6-philmd@linaro.org>
