Instead of relying on the mapped address of the MV64361 registers
access them via their memory region. This is not a problem at reset
time when these registers are mapped at the default address but the
guest could change this later and then the RTAS calls accessing PCI
config registers could fail. None of the guests actually do this so
this only avoids a theoretical problem not seen in practice.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <b6f768023603dc2c4d130720bcecdbea459b7668.1634241019.git.balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is needed for Linux to access RTC time.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <6233eb07c680d6c74427e11b9641958f98d53378.1634241019.git.balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Issue a warning when using VOF (which is the default) but no -kernel
option given to let users know that it will likely fail as the guest
has nothing to run. It is not a hard error because it may still be
useful to start the machine without further options for testing or
inspecting it from monitor without actually booting it.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <a4ec9a900df772b91e9f69ca7a0799d8ae293e5a.1634241019.git.balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The CHRP spec this board confirms to only allows 2 GiB of system
memory below 4 GiB as the high 2 GiB is allocated to IO and system
resources. To avoid problems with memory overlapping these areas
restrict RAM to 2 GiB similar to mac_newworld.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <54f58229a69c9c1cca21bcecad700b3d7052edd5.1634241019.git.balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We can't read env->xer directly, as it does not contain some bits of
XER. Instead, we should have a callback that uses cpu_read_xer to read
the complete register.
Fixes: da91a00f19 ("target-ppc: Split out SO, OV, CA fields from XER")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20211014223234.127012-5-matheus.ferst@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
env->xer doesn't hold some bits of XER, like OV and CA. To write the
complete register in the core dump we should read XER value with
cpu_read_xer.
Reported-by: Lucas Mateus Castro (alqotel) <lucas.araujo@eldorado.org.br>
Fixes: da91a00f19 ("target-ppc: Split out SO, OV, CA fields from XER")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20211014223234.127012-4-matheus.ferst@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The value of XER is split in multiple fields of CPUPPCState, like
env->xer and env->so. To get/set the whole register from gdb, we should
use cpu_read_xer/cpu_write_xer.
Fixes: da91a00f19 ("target-ppc: Split out SO, OV, CA fields from XER")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20211014223234.127012-3-matheus.ferst@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We should use cpu_read_xer/cpu_write_xer to save/restore the complete
register since some of its bits are in other fields of CPUPPCState. A
test is added to prevent future regressions.
Fixes: da91a00f19 ("target-ppc: Split out SO, OV, CA fields from XER")
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20211014223234.127012-2-matheus.ferst@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Using the U-Boot firmware, we can check that at least the serial console
of the ppc405 boards is still usable.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20211011125930.750217-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[dwg: Added an extra tag at Philippe's suggestion]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
When using u-boot as firmware with the taihu board, QEMU aborts with
this assertion:
ERROR:../accel/tcg/tcg-accel-ops.c:79:tcg_handle_interrupt: assertion failed:
(qemu_mutex_iothread_locked())
Running QEMU with "-d in_asm" shows that the crash happens when writing
to SPR 0x3f2, so we are missing to lock the iothread in the code path
here.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20211006071140.565952-1-thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
xive_esb_rw() is the common routine used for memory accesses on ESB
page. Use it for triggers also.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20211006210546.641102-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Commit 962104f044 ("hw/ppc: moved hcalls that depend on softmmu")
introduced a lot of unnecessary #include directives. Remove them.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211006170801.178023-1-philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Commit 4d9b8ef9b5 ("target/ppc: Fix 64-bit decrementer") introduced
new int64t variables and broke the test triggering the decrementer
exception. Revert partially the change to evaluate both clause of the
if statement.
Reported-by: Coverity CID 1464061
Fixes: 4d9b8ef9b5 ("target/ppc: Fix 64-bit decrementer")
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20211005053324.441132-1-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The mask of the Byte-Reverse Halfword opcode is a read-only
constant. We can avoid using a TCG temporary by moving the
mask to the constant pool.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211003141711.3673181-3-f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Avoid using TCG temporaries for the -1 and 8 constant values.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211003141711.3673181-2-f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
and use them to set and test the ASSERTED bit of LSI sources.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20211004212141.432954-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
vhost user rng
vdpa multiqueue
Fixes, cleanups, new tests all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc,pci,virtio: features, fixes, tests
vhost user rng
vdpa multiqueue
Fixes, cleanups, new tests all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Wed 20 Oct 2021 03:18:24 AM PDT
# gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg: issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [full]
* remotes/mst/tags/for_upstream: (44 commits)
tests/acpi/bios-tables-test: update DSDT blob for multifunction bridge test
tests/acpi/pcihp: add unit tests for hotplug on multifunction bridges for q35
tests/acpi/bios-tables-test: add and allow changes to a new q35 DSDT table blob
pci: fix PCI resource reserve capability on BE
vhost-vdpa: multiqueue support
virtio-net: vhost control virtqueue support
vhost: record the last virtqueue index for the virtio device
virtio-net: use "queue_pairs" instead of "queues" when possible
vhost-net: control virtqueue support
net: introduce control client
vhost-vdpa: let net_vhost_vdpa_init() returns NetClientState *
vhost-vdpa: prepare for the multiqueue support
vhost-vdpa: classify one time request
vhost-vdpa: open device fd in net_init_vhost_vdpa()
bios-tables-test: don't disassemble empty files
rebuild-expected-aml.sh: allow partial target list
qdev/qbus: remove failover specific code
vhost-user-blk-test: pass vhost-user socket fds to QSD
failover: fix a regression introduced by JSON'ification of -device
vhost-user: fix duplicated notifier MR init
...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
commit d7346e614f ("acpi: x86: pcihp: add support hotplug on multifunction bridges")
added ACPI hotplug descriptions for cold plugged bridges for functions other
than 0. For all other devices, the ACPI hotplug descriptions are limited to
function 0 only. This change adds unit tests for this feature.
This test adds the following devices to qemu and then checks the changes
introduced in the DSDT table due to the addition of the following devices:
(a) a multifunction bridge device
(b) a bridge device with function 1
(c) a non-bridge device with function 2
In the DSDT table, we should see AML hotplug descriptions for (a) and (b).
For (a) we should find a hotplug AML description for function 0.
The following diff compares the DSDT table AML with the new unit test before
and after the change d7346e614f is introduced. In other words,
this diff reflects the changes that occurs in the DSDT table due to the change
d7346e614f .
@@ -1,60 +1,38 @@
/*
* Intel ACPI Component Architecture
* AML/ASL+ Disassembler version 20190509 (64-bit version)
* Copyright (c) 2000 - 2019 Intel Corporation
*
* Disassembling to symbolic ASL+ operators
*
- * Disassembly of tests/data/acpi/q35/DSDT.multi-bridge, Thu Oct 7 18:56:05 2021
+ * Disassembly of /tmp/aml-AN0DA1, Thu Oct 7 18:56:05 2021
*
* Original Table Header:
* Signature "DSDT"
- * Length 0x000020FE (8446)
+ * Length 0x00002187 (8583)
* Revision 0x01 **** 32-bit table (V1), no 64-bit math support
- * Checksum 0xDE
+ * Checksum 0x8D
* OEM ID "BOCHS "
* OEM Table ID "BXPC "
* OEM Revision 0x00000001 (1)
* Compiler ID "BXPC"
* Compiler Version 0x00000001 (1)
*/
DefinitionBlock ("", "DSDT", 1, "BOCHS ", "BXPC ", 0x00000001)
{
- /*
- * iASL Warning: There was 1 external control method found during
- * disassembly, but only 0 were resolved (1 unresolved). Additional
- * ACPI tables may be required to properly disassemble the code. This
- * resulting disassembler output file may not compile because the
- * disassembler did not know how many arguments to assign to the
- * unresolved methods. Note: SSDTs can be dynamically loaded at
- * runtime and may or may not be available via the host OS.
- *
- * In addition, the -fe option can be used to specify a file containing
- * control method external declarations with the associated method
- * argument counts. Each line of the file must be of the form:
- * External (<method pathname>, MethodObj, <argument count>)
- * Invocation:
- * iasl -fe refs.txt -d dsdt.aml
- *
- * The following methods were unresolved and many not compile properly
- * because the disassembler had to guess at the number of arguments
- * required for each:
- */
- External (_SB_.PCI0.S19_.PCNT, MethodObj) // Warning: Unknown method, guessing 1 arguments
-
Scope (\)
{
OperationRegion (DBG, SystemIO, 0x0402, One)
Field (DBG, ByteAcc, NoLock, Preserve)
{
DBGB, 8
}
Method (DBUG, 1, NotSerialized)
{
ToHexString (Arg0, Local0)
ToBuffer (Local0, Local0)
Local1 = (SizeOf (Local0) - One)
Local2 = Zero
While ((Local2 < Local1))
{
@@ -3322,24 +3300,60 @@
Method (DVNT, 2, NotSerialized)
{
If ((Arg0 & One))
{
Notify (S00, Arg1)
}
}
Method (PCNT, 0, NotSerialized)
{
BNUM = One
DVNT (PCIU, One)
DVNT (PCID, 0x03)
}
}
+ Device (S19)
+ {
+ Name (_ADR, 0x00030001) // _ADR: Address
+ Name (BSEL, Zero)
+ Device (S00)
+ {
+ Name (_SUN, Zero) // _SUN: Slot User Number
+ Name (_ADR, Zero) // _ADR: Address
+ Method (_EJ0, 1, NotSerialized) // _EJx: Eject Device, x=0-9
+ {
+ PCEJ (BSEL, _SUN)
+ }
+
+ Method (_DSM, 4, Serialized) // _DSM: Device-Specific Method
+ {
+ Return (PDSM (Arg0, Arg1, Arg2, Arg3, BSEL, _SUN))
+ }
+ }
+
+ Method (DVNT, 2, NotSerialized)
+ {
+ If ((Arg0 & One))
+ {
+ Notify (S00, Arg1)
+ }
+ }
+
+ Method (PCNT, 0, NotSerialized)
+ {
+ BNUM = Zero
+ DVNT (PCIU, One)
+ DVNT (PCID, 0x03)
+ }
+ }
+
Method (PCNT, 0, NotSerialized)
{
- ^S19.PCNT (^S10.PCNT ())
+ ^S19.PCNT ()
+ ^S10.PCNT ()
}
}
}
}
Signed-off-by: Ani Sinha <ani@anisinha.ca>
Message-Id: <20211007135750.1277213-3-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
We are adding a new unit test to cover the acpi hotplug support in q35 for
multi-function bridges. This test uses a new table DSDT.multi-bridge.
We need to allow changes in DSDT acpi table for addition of this new
unit test.
Signed-off-by: Ani Sinha <ani@anisinha.ca>
Message-Id: <20211007135750.1277213-2-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
PCI resource reserve capability should use LE format as all other PCI
things. If we don't then seabios won't boot:
=== PCI new allocation pass #1 ===
PCI: check devices
PCI: QEMU resource reserve cap: size 10000000000000 type io
PCI: secondary bus 1 size 10000000000000 type io
PCI: secondary bus 1 size 00200000 type mem
PCI: secondary bus 1 size 00200000 type prefmem
=== PCI new allocation pass #2 ===
PCI: out of I/O address space
This became more important since we started reserving IO by default,
previously no one noticed.
Fixes: e2a6290aab ("hw/pcie-root-port: Fix hotplug for PCI devices requiring IO")
Cc: marcel.apfelbaum@gmail.com
Fixes: 226263fb5c ("hw/pci: add QEMU-specific PCI capability to the Generic PCI Express Root Port")
Cc: zuban32s@gmail.com
Fixes: 6755e618d0 ("hw/pci: add PCI resource reserve capability to legacy PCI bridge")
Cc: jing2.liu@linux.intel.com
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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 <jasowang@redhat.com>
Message-Id: <20211020045600.16082-11-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 <jasowang@redhat.com>
Message-Id: <20211020045600.16082-10-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 <jasowang@redhat.com>
Message-Id: <20211020045600.16082-9-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 <jasowang@redhat.com>
Message-Id: <20211020045600.16082-8-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 vhost_net_start/stop() are tweaked to accept the
number of datapath queue pairs plus the the number of control
virtqueue for us to start and stop the vhost device.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20211020045600.16082-7-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 <jasowang@redhat.com>
Message-Id: <20211020045600.16082-6-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 <jasowang@redhat.com>
Message-Id: <20211020045600.16082-5-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 <jasowang@redhat.com>
Message-Id: <20211020045600.16082-4-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 <jasowang@redhat.com>
Message-Id: <20211020045600.16082-3-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 <sgarzare@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20211020045600.16082-2-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
A recommended way to populate new tables is to have an
empty expected file. In this case, attempts to disassemble
will fail but it is useful to disassemble the actual files.
Detect and skip decompile step in this case.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Commit f3a8505656 ("qdev/qbus: add hidden device support") has
introduced a generic way to hide a device but it has modified
qdev_device_add() to check a specific option of the failover device,
"failover_pair_id", before calling the generic mechanism.
It's not needed (and not generic) to do that in qdev_device_add() because
this is also checked by the failover_hide_primary_device() function that
uses the generic mechanism to hide the device.
Cc: Jens Freimann <jfreimann@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20211019071532.682717-3-lvivier@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
qemu-storage-daemon is launched with the vhost-user listen socket path.
The path is first unlinked before opening the listen socket. This
prevents stale UNIX domain socket files from stopping socket
initialization.
This behavior is undesirable in vhost-user-blk-test and the cause of a
bug:
There is a race condition in vhost-user-blk-test when QEMU launches
before QSD. It connects to the old socket that QSD unlinks and the
vhost-user connection is never serviced, resulting in a hang.
Pass the listen socket fd to QSD to maintain listen socket continuity
and prevent the lost connection.
Fixes: 806952026d ("test: new qTest case to test the vhost-user-blk-server")
Cc: Raphael Norwitz <raphael.norwitz@nutanix.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Coiby Xu <coiby.xu@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20211019135655.83067-1-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The hide_device helper can be called several times for the same
devices as it shouldn't change any state and should only return an
information.
But not to rely anymore on QemuOpts we have introduced a new field
to store the parameters of the device and don't allow to update it
once it is done.
And as the function is called several times, we ends with:
warning: Cannot attach more than one primary device to 'virtio0'
That is not only a warning as it prevents to hide the device and breaks
failover.
Fix that by checking the device id.
Now, we fail only if the virtio-net device is really used by two different
devices, for instance:
-device virtio-net-pci,id=virtio0,failover=on,... \
-device vfio-pci,id=hostdev0,failover_pair_id=virtio0,... \
-device e1000e,id=e1000e0,failover_pair_id=virtio0,... \
will exit with:
Cannot attach more than one primary device to 'virtio0': 'hostdev0' and 'e1000e0'
Fixes: 259a10dbcb ("virtio-net: Store failover primary opts pointer locally")
Cc: kwolf@redhat.com
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20211019071532.682717-2-lvivier@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
In case of device resume after suspend, VQ notifier MR still valid.
Duplicated registrations explode memory block list and slow down device
resume.
Fixes: 44866521bd ("vhost-user: support registering external host notifiers")
Cc: tiwei.bie@intel.com
Cc: qemu-stable@nongnu.org
Cc: Yuwei Zhang <zhangyuwei.9149@bytedance.com>
Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Message-Id: <20211008080215.590292-1-xuemingl@nvidia.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add description and example for the vhost-user based RNG implementation.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Message-Id: <20211012205904.4106769-4-mathieu.poirier@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This patch provides a PCI bus interface to the vhost-user-rng backend.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Message-Id: <20211012205904.4106769-3-mathieu.poirier@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Introduce a random number generator (RNG) backend that communicates
with a vhost-user server to retrieve entropy. That way other VMM
that comply with the vhost user protocl can use the same vhost-user
daemon without having to write yet another RNG driver.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Message-Id: <20211012205904.4106769-2-mathieu.poirier@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
We end up not copying the mmap_addr of all existing regions, resulting
in a SEGFAULT once we actually try to map/access anything within our
memory regions.
Fixes: 875b9fd97b ("Support individual region unmap in libvhost-user")
Cc: qemu-stable@nongnu.org
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Raphael Norwitz <raphael.norwitz@nutanix.com>
Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Coiby Xu <coiby.xu@gmail.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20211011201047.62587-1-david@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: Stefan Hajnoczi <stefanha@redhat.com>
Drop base_name and turn generic_name into
"virtio-iommu-pci". This is more in line with
other modern-only devices.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Suggested-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20211013191755.767468-3-eric.auger@redhat.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Remove the non transitional name for virtio iommu. Like other
devices introduced after 1.0 spec, the virtio-iommu does
not need it.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20211013191755.767468-2-eric.auger@redhat.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Check vdpa device range before updating memory regions so we don't add
any outside of it, and report the invalid change if any.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20211014141236.923287-4-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Abstract this operation, that will be reused when validating the region
against the iova range that the device supports.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20211014141236.923287-3-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Following the logic of commit 56918a126a ("memory: Add RAM_PROTECTED
flag to skip IOMMU mappings") with VFIO, skip memory sections
inaccessible via normal mechanisms, including DMA.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20211014141236.923287-2-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
.. only if TCG is available
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20210902113551.461632-16-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210902113551.461632-15-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
and drop custom function that were doing the job
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20210902113551.461632-14-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
follow up call with smbios options generates the same ACPI tables,
so there is no need to run smbios-less variant at all.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20210902113551.461632-13-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
