Commit Graph

24796 Commits

Author SHA1 Message Date
Michael S. Tsirkin 8347505640 vhost: coding style fix
Drop a trailing whitespace. Make line shorter.

Fixes: 7652511473 ("vhost: Only align sections for vhost-user")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-23 02:08:15 -05:00
Corey Minyard aefcaf9d1b i386:acpi: Remove _HID from the SMBus ACPI entry
Per the ACPI spec (version 6.1, section 6.1.5 _HID) it is not required
on enumerated buses (like PCI in this case), _ADR is required (and is
already there).  And the _HID value is wrong.  Linux appears to ignore
the _HID entry, but Windows 10 detects it as 'Unknown Device' and there
is no driver available.  See https://bugs.launchpad.net/qemu/+bug/1856724

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200120170725.24935-6-minyard@acm.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-22 01:47:55 -05:00
Dr. David Alan Gilbert 7652511473 vhost: Only align sections for vhost-user
I added hugepage alignment code in c1ece84e7c to deal with
vhost-user + postcopy which needs aligned pages when using userfault.
However, on x86 the lower 2MB of address space tends to be shotgun'd
with small fragments around the 512-640k range - e.g. video RAM, and
with HyperV synic pages tend to sit around there - again splitting
it up.  The alignment code complains with a 'Section rounded to ...'
error and gives up.

Since vhost-user already filters out devices without an fd
(see vhost-user.c vhost_user_mem_section_filter) it shouldn't be
affected by those overlaps.

Turn the alignment off on vhost-kernel so that it doesn't try
and align, and thus won't hit the rounding issues.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20200116202414.157959-3-dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-22 00:50:03 -05:00
Dr. David Alan Gilbert ff4776147e vhost: Add names to section rounded warning
Add the memory region names to section rounding/alignment
warnings.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20200116202414.157959-2-dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-22 00:50:03 -05:00
Pan Nengyuan e1932cf914 vhost-vsock: delete vqs in vhost_vsock_unrealize to avoid memleaks
Receive/transmit/event vqs forgot to cleanup in vhost_vsock_unrealize. This
patch save receive/transmit vq pointer in realize() and cleanup vqs
through those vq pointers in unrealize(). The leak stack is as follow:

Direct leak of 21504 byte(s) in 3 object(s) allocated from:
  #0 0x7f86a1356970 (/lib64/libasan.so.5+0xef970)  ??:?
  #1 0x7f86a09aa49d (/lib64/libglib-2.0.so.0+0x5249d)  ??:?
  #2 0x5604852f85ca (./x86_64-softmmu/qemu-system-x86_64+0x2c3e5ca)  /mnt/sdb/qemu/hw/virtio/virtio.c:2333
  #3 0x560485356208 (./x86_64-softmmu/qemu-system-x86_64+0x2c9c208)  /mnt/sdb/qemu/hw/virtio/vhost-vsock.c:339
  #4 0x560485305a17 (./x86_64-softmmu/qemu-system-x86_64+0x2c4ba17)  /mnt/sdb/qemu/hw/virtio/virtio.c:3531
  #5 0x5604858e6b65 (./x86_64-softmmu/qemu-system-x86_64+0x322cb65)  /mnt/sdb/qemu/hw/core/qdev.c:865
  #6 0x5604861e6c41 (./x86_64-softmmu/qemu-system-x86_64+0x3b2cc41)  /mnt/sdb/qemu/qom/object.c:2102

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200115062535.50644-1-pannengyuan@huawei.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-01-22 00:23:07 -05:00
Pan Nengyuan 2feff67c4e virtio-scsi: convert to new virtio_delete_queue
Use virtio_delete_queue to make it more clear.

Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200117075547.60864-3-pannengyuan@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-01-22 00:23:07 -05:00
Pan Nengyuan dd958f9ef4 virtio-scsi: delete vqs in unrealize to avoid memleaks
This patch fix memleaks when attaching/detaching virtio-scsi device, the
memory leak stack is as follow:

Direct leak of 21504 byte(s) in 3 object(s) allocated from:
  #0 0x7f491f2f2970 (/lib64/libasan.so.5+0xef970)  ??:?
  #1 0x7f491e94649d (/lib64/libglib-2.0.so.0+0x5249d)  ??:?
  #2 0x564d0f3919fa (./x86_64-softmmu/qemu-system-x86_64+0x2c3e9fa)  /mnt/sdb/qemu/hw/virtio/virtio.c:2333
  #3 0x564d0f2eca55 (./x86_64-softmmu/qemu-system-x86_64+0x2b99a55)  /mnt/sdb/qemu/hw/scsi/virtio-scsi.c:912
  #4 0x564d0f2ece7b (./x86_64-softmmu/qemu-system-x86_64+0x2b99e7b)  /mnt/sdb/qemu/hw/scsi/virtio-scsi.c:924
  #5 0x564d0f39ee47 (./x86_64-softmmu/qemu-system-x86_64+0x2c4be47)  /mnt/sdb/qemu/hw/virtio/virtio.c:3531
  #6 0x564d0f980224 (./x86_64-softmmu/qemu-system-x86_64+0x322d224)  /mnt/sdb/qemu/hw/core/qdev.c:865

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200117075547.60864-2-pannengyuan@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-01-22 00:23:07 -05:00
Pan Nengyuan ad30a9e904 virtio-9p-device: convert to new virtio_delete_queue
Use virtio_delete_queue to make it more clear.

Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200117060927.51996-3-pannengyuan@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
2020-01-22 00:23:07 -05:00
Pan Nengyuan 9580d60e66 virtio-9p-device: fix memleak in virtio_9p_device_unrealize
v->vq forgot to cleanup in virtio_9p_device_unrealize, the memory leak
stack is as follow:

Direct leak of 14336 byte(s) in 2 object(s) allocated from:
  #0 0x7f819ae43970 (/lib64/libasan.so.5+0xef970)  ??:?
  #1 0x7f819872f49d (/lib64/libglib-2.0.so.0+0x5249d)  ??:?
  #2 0x55a3a58da624 (./x86_64-softmmu/qemu-system-x86_64+0x2c14624)  /mnt/sdb/qemu/hw/virtio/virtio.c:2327
  #3 0x55a3a571bac7 (./x86_64-softmmu/qemu-system-x86_64+0x2a55ac7)  /mnt/sdb/qemu/hw/9pfs/virtio-9p-device.c:209
  #4 0x55a3a58e7bc6 (./x86_64-softmmu/qemu-system-x86_64+0x2c21bc6)  /mnt/sdb/qemu/hw/virtio/virtio.c:3504
  #5 0x55a3a5ebfb37 (./x86_64-softmmu/qemu-system-x86_64+0x31f9b37)  /mnt/sdb/qemu/hw/core/qdev.c:876

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Message-Id: <20200117060927.51996-2-pannengyuan@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Acked-by: Greg Kurz <groug@kaod.org>
2020-01-22 00:23:07 -05:00
Igor Mammedov 3a61c8db9d acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command
Firmware can enumerate present at boot APs by broadcasting wakeup IPI,
so that woken up secondary CPUs could register them-selves.
However in CPU hotplug case, it would need to know architecture
specific CPU IDs for possible and hotplugged CPUs so it could
prepare environment for and wake hotplugged AP.

Reuse and extend existing CPU hotplug interface to return architecture
specific ID for currently selected CPU in 2 registers:
 - lower 32 bits in ACPI_CPU_CMD_DATA_OFFSET_RW
 - upper 32 bits in ACPI_CPU_CMD_DATA2_OFFSET_R

On x86, firmware will use CPHP_GET_CPU_ID_CMD for fetching the APIC ID
when handling hotplug SMI.

Later, CPHP_GET_CPU_ID_CMD will be used on ARM to retrieve MPIDR,
which serves the similar to APIC ID purpose.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-10-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov e6d0c3ce68 acpi: cpuhp: introduce 'Command data 2' field
No functional change in practice, patch only aims to properly
document (in spec and code) intended usage of the reserved space.

The new field is to be used for 2 purposes:
  - detection of modern CPU hotplug interface using
    CPHP_GET_NEXT_CPU_WITH_EVENT_CMD command.
    procedure will be described in follow up patch:
      "acpi: cpuhp: spec: add typical usecases"
  - for returning upper 32 bits of architecture specific CPU ID,
    for new CPHP_GET_CPU_ID_CMD command added by follow up patch:
      "acpi: cpuhp: add CPHP_GET_CPU_ID_CMD command"

Change is backward compatible with 4.2 and older machines, as field was
unconditionally reserved and always returned 0x0 if modern CPU hotplug
interface was enabled.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-8-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-01-22 00:23:07 -05:00
Igor Mammedov f404220e27 q35: implement 128K SMRAM at default SMBASE address
It's not what real HW does, implementing which would be overkill [**]
and would require complex cross stack changes (QEMU+firmware) to make
it work.
So considering that SMRAM is owned by MCH, for simplicity (ab)use
reserved Q35 register, which allows QEMU and firmware easily init
and make RAM at SMBASE available only from SMM context.

Patch uses commit (2f295167e0 q35/mch: implement extended TSEG sizes)
for inspiration and uses reserved register in config space at 0x9c
offset [*] to extend q35 pci-host with ability to use 128K at
0x30000 as SMRAM and hide it (like TSEG) from non-SMM context.

Usage:
  1: write 0xff in the register
  2: if the feature is supported, follow up read from the register
     should return 0x01. At this point RAM at 0x30000 is still
     available for SMI handler configuration from non-SMM context
  3: writing 0x02 in the register, locks SMBASE area, making its contents
     available only from SMM context. In non-SMM context, reads return
     0xff and writes are ignored. Further writes into the register are
     ignored until the system reset.

*) https://www.mail-archive.com/qemu-devel@nongnu.org/msg455991.html
**) https://www.mail-archive.com/qemu-devel@nongnu.org/msg646965.html

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1575896942-331151-3-git-send-email-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
2020-01-22 00:23:07 -05:00
Daniel Henrique Barboza b858e80a02 9pfs/9p.c: remove unneeded labels
'out' label in v9fs_xattr_write() and 'out_nofid' label in
v9fs_complete_rename() can be replaced by appropriate return
calls.

CC: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Acked-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-01-20 15:11:39 +01:00
Greg Kurz 16724a1730 9p: init_in_iov_from_pdu can truncate the size
init_in_iov_from_pdu might not be able to allocate the full buffer size
requested, which comes from the client and could be larger than the
transport has available at the time of the request. Specifically, this
can happen with read operations, with the client requesting a read up to
the max allowed, which might be more than the transport has available at
the time.

Today the implementation of init_in_iov_from_pdu throws an error, both
Xen and Virtio.

Instead, change the V9fsTransport interface so that the size becomes a
pointer and can be limited by the implementation of
init_in_iov_from_pdu.

Change both the Xen and Virtio implementations to set the size to the
size of the buffer they managed to allocate, instead of throwing an
error. However, if the allocated buffer size is less than P9_IOHDRSZ
(the size of the header) still throw an error as the case is unhandable.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
CC: groug@kaod.org
CC: anthony.perard@citrix.com
CC: roman@zededa.com
CC: qemu_oss@crudebyte.com
[groug: fix 32-bit build]
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-01-20 15:11:39 +01:00
Daniel Henrique Barboza 846cf408a4 9p: local: always return -1 on error in local_unlinkat_common
local_unlinkat_common() is supposed to always return -1 on error.
This is being done by jumps to the 'err_out' label, which is
a 'return ret' call, and 'ret' is initialized with -1.

Unfortunately there is a condition in which the function will
return 0 on error: in a case where flags == AT_REMOVEDIR, 'ret'
will be 0 when reaching

map_dirfd = openat_dir(...)

And, if map_dirfd == -1 and errno != ENOENT, the existing 'err_out'
jump will execute 'return ret', when ret is still set to zero
at that point.

This patch fixes it by changing all 'err_out' labels by
'return -1' calls, ensuring that the function will always
return -1 on error conditions. 'ret' can be left unintialized
since it's now being used just to store the result of 'unlinkat'
calls.

CC: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
[groug: changed prefix in title to be "9p: local:"]
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-01-20 15:11:39 +01:00
Jiajun Chen 841b8d099c 9pfs: local: Fix possible memory leak in local_link()
There is a possible memory leak while local_link return -1 without free
odirpath and oname.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Jaijun Chen <chenjiajun8@huawei.com>
Signed-off-by: Xiang Zheng <zhengxiang9@huawei.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
2020-01-20 15:11:39 +01:00
Peter Xu 0ab994867c apic: Use 32bit APIC ID for migration instance ID
Migration is silently broken now with x2apic config like this:

     -smp 200,maxcpus=288,sockets=2,cores=72,threads=2 \
     -device intel-iommu,intremap=on,eim=on

After migration, the guest kernel could hang at anything, due to
x2apic bit not migrated correctly in IA32_APIC_BASE on some vcpus, so
any operations related to x2apic could be broken then (e.g., RDMSR on
x2apic MSRs could fail because KVM would think that the vcpu hasn't
enabled x2apic at all).

The issue is that the x2apic bit was never applied correctly for vcpus
whose ID > 255 when migrate completes, and that's because when we
migrate APIC we use the APICCommonState.id as instance ID of the
migration stream, while that's too short for x2apic.

Let's use the newly introduced initial_apic_id for that.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-20 09:10:23 +01:00
Peter Xu 93062e2361 migration: Change SaveStateEntry.instance_id into uint32_t
It was always used as 32bit, so define it as used to be clear.
Instead of using -1 as the auto-gen magic value, we switch to
UINT32_MAX.  We also make sure that we don't auto-gen this value to
avoid overflowed instance IDs without being noticed.

Suggested-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-20 09:10:23 +01:00
Peter Xu 1df2c9a26f migration: Define VMSTATE_INSTANCE_ID_ANY
Define the new macro VMSTATE_INSTANCE_ID_ANY for callers who wants to
auto-generate the vmstate instance ID.  Previously it was hard coded
as -1 instead of this macro.  It helps to change this default value in
the follow up patches.  No functional change.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-20 09:10:23 +01:00
Jeff Kubascik ef1255212a arm/gicv3: update virtual irq state after IAR register read
The IAR0/IAR1 register is used to acknowledge an interrupt - a read of the
register activates the highest priority pending interrupt and provides its
interrupt ID. Activating an interrupt can change the CPU's virtual interrupt
state - this change makes sure the virtual irq state is updated.

Signed-off-by: Jeff Kubascik <jeff.kubascik@dornerworks.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200113154607.97032-1-jeff.kubascik@dornerworks.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 14:27:16 +00:00
Martin Kaiser f03965490e i.MX: add an emulation for RNGC
Add an emulation for the RNGC random number generator and the compatible
RNGB variant. These peripherals are included (at least) in imx25 and
imx35 chipsets.

The emulation supports the initial self test, reseeding the prng and
reading random numbers.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 14:27:16 +00:00
Philippe Mathieu-Daudé af4ba4ed13 hw/arm/allwinner-a10: Remove local qemu_irq variables
We won't reuse the CPU IRQ/FIQ variables. Simplify by calling
qdev_get_gpio_in() in place.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20191230110953.25496-6-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 14:09:30 +00:00
Philippe Mathieu-Daudé f8a865d36d hw/arm/allwinner-a10: Simplify by passing IRQs with qdev_pass_gpios()
By calling qdev_pass_gpios() we don't need to hold a copy of the
IRQs from the INTC into the SoC state.
Instead of filling an array of qemu_irq and passing it around, we
can now directly call qdev_get_gpio_in() on the SoC.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20191230110953.25496-5-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 14:09:30 +00:00
Philippe Mathieu-Daudé 7f0ec9893c hw/arm/allwinner-a10: Move SoC definitions out of header
These definitions are specific to the A10 SoC and don't need
to be exported to the different Allwinner peripherals.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20191230110953.25496-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 14:09:30 +00:00
Alistair Francis 60d6c4278a hw/arm: Add the Netduino Plus 2
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: dad8d8d47f7625913e35e27a1c00f603a6b08f9a.1576658572.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 14:09:29 +00:00
Alistair Francis 529fc5fd3e hw/arm: Add the STM32F4xx SoC
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1d145c4c13e5fa140caf131232a6f524c88fcd72.1576658572.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 14:09:29 +00:00
Alistair Francis e64d8c83f9 hw/misc: Add the STM32F4xx EXTI device
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: ef941d59fd8658589d34ed432e1d6dfdcf7fb1d0.1576658572.git.alistair@alistair23.me
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 14:09:29 +00:00
Alistair Francis 870c034da0 hw/misc: Add the STM32F4xx Sysconfig device
Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 49b01423a09cef2ca832ff73a84a996568f1a8fc.1576658572.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-17 14:09:29 +00:00
Peter Maydell 3c8a657598 usb: bugfixes for xhci, usb pass-through and usb redirection.
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Merge remote-tracking branch 'remotes/kraxel/tags/usb-20200113-pull-request' into staging

usb: bugfixes for xhci, usb pass-through and usb redirection.

# gpg: Signature made Mon 13 Jan 2020 13:06:35 GMT
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/usb-20200113-pull-request:
  xhci: recheck slot status
  xhci: Fix memory leak in xhci_kick_epctx when poweroff GuestOS
  usbredir: Prevent recursion in usbredir_write
  usb-redir: remove 'remote wakeup' flag from configuration descriptor
  usb-host: remove 'remote wakeup' flag from configuration descriptor

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-13 14:19:57 +00:00
Gerd Hoffmann 236846a019 xhci: recheck slot status
Factor out slot status check into a helper function.  Add an additional
check after completing transfers.  This is needed in case a guest
queues multiple transfers in a row and a device unplug happens while
qemu processes them.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1786413
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200107083606.12393-1-kraxel@redhat.com
2020-01-13 14:05:55 +01:00
Chen Qun 34b9d6a1f8 xhci: Fix memory leak in xhci_kick_epctx when poweroff GuestOS
start vm with libvirt, when GuestOS running, enter poweroff command using
the xhci keyboard, then ASAN shows memory leak stack:

Direct leak of 80 byte(s) in 5 object(s) allocated from:
    #0 0xfffd1e6431cb in __interceptor_malloc (/lib64/libasan.so.4+0xd31cb)
    #1 0xfffd1e107163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163)
    #2 0xaaad39051367 in qemu_sglist_init /qemu/dma-helpers.c:43
    #3 0xaaad3947c407 in pci_dma_sglist_init /qemu/include/hw/pci/pci.h:842
    #4 0xaaad3947c407 in xhci_xfer_create_sgl /qemu/hw/usb/hcd-xhci.c:1446
    #5 0xaaad3947c407 in xhci_setup_packet /qemu/hw/usb/hcd-xhci.c:1618
    #6 0xaaad3948625f in xhci_submit /qemu/hw/usb/hcd-xhci.c:1827
    #7 0xaaad3948625f in xhci_fire_transfer /qemu/hw/usb/hcd-xhci.c:1839
    #8 0xaaad3948625f in xhci_kick_epctx /qemu/hw/usb/hcd-xhci.c:1991
    #9 0xaaad3948f537 in xhci_doorbell_write /qemu/hw/usb/hcd-xhci.c:3158
    #10 0xaaad38bcbfc7 in memory_region_write_accessor /qemu/memory.c:483
    #11 0xaaad38bc654f in access_with_adjusted_size /qemu/memory.c:544
    #12 0xaaad38bd1877 in memory_region_dispatch_write /qemu/memory.c:1482
    #13 0xaaad38b1c77f in flatview_write_continue /qemu/exec.c:3167
    #14 0xaaad38b1ca83 in flatview_write /qemu/exec.c:3207
    #15 0xaaad38b268db in address_space_write /qemu/exec.c:3297
    #16 0xaaad38bf909b in kvm_cpu_exec /qemu/accel/kvm/kvm-all.c:2383
    #17 0xaaad38bb063f in qemu_kvm_cpu_thread_fn /qemu/cpus.c:1246
    #18 0xaaad39821c93 in qemu_thread_start /qemu/util/qemu-thread-posix.c:519
    #19 0xfffd1c8378bb  (/lib64/libpthread.so.0+0x78bb)
    #20 0xfffd1c77616b  (/lib64/libc.so.6+0xd616b)

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Message-id: 20200110105855.81144-1-kuhn.chenqun@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-01-13 14:05:55 +01:00
Dr. David Alan Gilbert 394642a8d3 usbredir: Prevent recursion in usbredir_write
I've got a case where usbredir_write manages to call back into itself
via spice; this patch causes the recursion to fail (0 bytes) the write;
this seems to avoid the deadlock I was previously seeing.

I can't say I fully understand the interaction of usbredir and spice;
but there are a few similar guards in spice and usbredir
to catch other cases especially onces also related to spice_server_char_device_wakeup

This case seems to be triggered by repeated migration+repeated
reconnection of the viewer; but my debugging suggests the migration
finished before this hits.

The backtrace of the hang looks like:
  reds_handle_ticket
  reds_handle_other_links
  reds_channel_do_link
  red_channel_connect
  spicevmc_connect
  usbredir_create_parser
  usbredirparser_do_write
  usbredir_write
  qemu_chr_fe_write
  qemu_chr_write
  qemu_chr_write_buffer
  spice_chr_write
  spice_server_char_device_wakeup
  red_char_device_wakeup
  red_char_device_write_to_device
  vmc_write
  usbredirparser_do_write
  usbredir_write
  qemu_chr_fe_write
  qemu_chr_write
  qemu_chr_write_buffer
  qemu_mutex_lock_impl

and we fail as we lang through qemu_chr_write_buffer's lock
twice.

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1752320

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20191218113012.13331-1-dgilbert@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-01-13 14:05:46 +01:00
Yuri Benditovich 32187f3d90 usb-redir: remove 'remote wakeup' flag from configuration descriptor
If the redirected device has this capability, Windows guest may
place the device into D2 and expect it to wake when the device
becomes active, but this will never happen. For example, when
internal Bluetooth adapter is redirected, keyboards and mice
connected to it do not work. Current commit removes this
capability (starting from machine 5.0)
Set 'usb-redir.suppress-remote-wake' property to 'off' to keep
'remote wake' as is or to 'on' to remove 'remote wake' on
4.2 or earlier.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Message-id: 20200108091044.18055-3-yuri.benditovich@daynix.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-01-13 09:17:31 +01:00
Yuri Benditovich 7bacaf5fea usb-host: remove 'remote wakeup' flag from configuration descriptor
If the redirected device has this capability, Windows guest may
place the device into D2 and expect it to wake when the device
becomes active, but this will never happen. For example, when
internal Bluetooth adapter is redirected, keyboards and mice
connected to it do not work. Current commit removes this
capability (starting from machine 5.0)
Set 'usb-host.suppress-remote-wake' property to 'off' to keep
'remote wake' as is or to 'on' to remove 'remote wake' on
4.2 or earlier.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Message-id: 20200108091044.18055-2-yuri.benditovich@daynix.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-01-13 09:17:31 +01:00
Peter Maydell b952544fe8 * Compat machines fix (Denis)
* Command line parsing fixes (Michal, Peter, Xiaoyao)
 * Cooperlake CPU model fixes (Xiaoyao)
 * i386 gdb fix (mkdolata)
 * IOEventHandler cleanup (Philippe)
 * icount fix (Pavel)
 * RR support for random number sources (Pavel)
 * Kconfig fixes (Philippe)
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 Version: GnuPG v2.0.22 (GNU/Linux)
 
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Compat machines fix (Denis)
* Command line parsing fixes (Michal, Peter, Xiaoyao)
* Cooperlake CPU model fixes (Xiaoyao)
* i386 gdb fix (mkdolata)
* IOEventHandler cleanup (Philippe)
* icount fix (Pavel)
* RR support for random number sources (Pavel)
* Kconfig fixes (Philippe)

# gpg: Signature made Wed 08 Jan 2020 10:41:00 GMT
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (38 commits)
  chardev: Use QEMUChrEvent enum in IOEventHandler typedef
  chardev: use QEMUChrEvent instead of int
  chardev/char: Explicit we ignore some QEMUChrEvent in IOEventHandler
  monitor/hmp: Explicit we ignore a QEMUChrEvent in IOEventHandler
  monitor/qmp: Explicit we ignore few QEMUChrEvent in IOEventHandler
  virtio-console: Explicit we ignore some QEMUChrEvent in IOEventHandler
  vhost-user-blk: Explicit we ignore few QEMUChrEvent in IOEventHandler
  vhost-user-net: Explicit we ignore few QEMUChrEvent in IOEventHandler
  vhost-user-crypto: Explicit we ignore some QEMUChrEvent in IOEventHandler
  ccid-card-passthru: Explicit we ignore QEMUChrEvent in IOEventHandler
  hw/usb/redirect: Explicit we ignore few QEMUChrEvent in IOEventHandler
  hw/usb/dev-serial: Explicit we ignore few QEMUChrEvent in IOEventHandler
  hw/char/terminal3270: Explicit ignored QEMUChrEvent in IOEventHandler
  hw/ipmi: Explicit we ignore some QEMUChrEvent in IOEventHandler
  hw/ipmi: Remove unnecessary declarations
  target/i386: Add missed features to Cooperlake CPU model
  target/i386: Add new bit definitions of MSR_IA32_ARCH_CAPABILITIES
  target/i386: Fix handling of k_gs_base register in 32-bit mode in gdbstub
  hw/rtc/mc146818: Add missing dependency on ISA Bus
  hw/nvram/Kconfig: Restrict CHRP NVRAM to machines using OpenBIOS or SLOF
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-10 17:16:49 +00:00
Peter Maydell dc65a5bdc9 ppc patch queue 2020-01-08
Here's another pull request for qemu-5.0 of ppc related changes.
 Highlights are:
  * First parts of support for POWER Secure VMs
  * Rework to clean up how we pass context information to the various
    components of the pnv machine (reduces usage of qdev_get_machine())
  * Assorted cleanups and bugfixes
 -----BEGIN PGP SIGNATURE-----
 
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 =gbsd
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-5.0-20200108' into staging

ppc patch queue 2020-01-08

Here's another pull request for qemu-5.0 of ppc related changes.
Highlights are:
 * First parts of support for POWER Secure VMs
 * Rework to clean up how we pass context information to the various
   components of the pnv machine (reduces usage of qdev_get_machine())
 * Assorted cleanups and bugfixes

# gpg: Signature made Wed 08 Jan 2020 05:22:08 GMT
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-5.0-20200108: (26 commits)
  ppc/pnv: fix check on return value of blk_getlength()
  ppc/pnv: check return value of blk_pwrite()
  pnv/psi: Consolidate some duplicated code in pnv_psi_realize()
  pnv/psi: Add device reset hook
  pnv/xive: Deduce the PnvXive pointer from XiveTCTX::xptr
  spapr/xive: Deduce the SpaprXive pointer from XiveTCTX::xptr
  xive: Add a "presenter" link property to the TCTX object
  ppc/pnv: Add a "pnor" const link property to the BMC internal simulator
  ppc/pnv: Add an "nr-threads" property to the base chip class
  xive: Use the XIVE fabric link under the XIVE router
  spapr, pnv, xive: Add a "xive-fabric" link to the XIVE router
  pnv/xive: Use device_class_set_parent_realize()
  ppc/pnv: Introduce a "xics" property under the POWER8 chip
  ppc/pnv: Introduce a "xics" property alias under the PSI model
  spapr/xive: remove redundant check in spapr_match_nvt()
  ppc/pnv: Drop "num-chips" machine property
  ppc440_bamboo.c: remove label from bamboo_load_device_tree()
  spapr.c: remove 'out' label in spapr_dt_cas_updates()
  ppc/spapr: Don't call KVM_SVM_OFF ioctl on TCG
  spapr/xive: Use device_class_set_parent_realize()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-10 16:15:04 +00:00
Peter Maydell f38a71b01f Testing fixes and semiconsole support:
- build fix (missing x86-iommu stubs)
   - python fixes for freebsd and OSX
   - nicer reporting of acceptance failures
   - fix build nesting of fp-test (breaks bsds)
   - semihosting clean-ups
   - support for blocking semihosting console
 -----BEGIN PGP SIGNATURE-----
 
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-and-semihosting-090120-2' into staging

Testing fixes and semiconsole support:

  - build fix (missing x86-iommu stubs)
  - python fixes for freebsd and OSX
  - nicer reporting of acceptance failures
  - fix build nesting of fp-test (breaks bsds)
  - semihosting clean-ups
  - support for blocking semihosting console

# gpg: Signature made Thu 09 Jan 2020 11:42:51 GMT
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-testing-and-semihosting-090120-2:
  tests/tcg: add user version of dumb-as-bricks semiconsole test
  tests/tcg: extract __semi_call into a header and expand
  tests/tcg: add a dumb-as-bricks semihosting console test
  semihosting: add qemu_semihosting_console_inc for SYS_READC
  target/arm: only update pc after semihosting completes
  target/arm: remove unused EXCP_SEMIHOST leg
  testing: don't nest build for fp-test
  travis.yml: install homebrew python for OS X
  travis.yml: duplicate before_script for MacOSX
  travis.yml: Detach build and test steps
  travis.yml: avocado: Print logs of non-pass tests only
  freebsd: use python37
  tests/vm: update openbsd to release 6.6
  hw/i386/x86-iommu: Add missing stubs

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-01-10 13:19:34 +00:00
Keith Packard 8de702cb67 semihosting: add qemu_semihosting_console_inc for SYS_READC
Provides a blocking call to read a character from the console using
semihosting.chardev, if specified. This takes some careful command
line options to use stdio successfully as the serial ports, monitor
and semihost all want to use stdio. Here's a sample set of command
line options which share stdio between semihost, monitor and serial
ports:

	qemu \
	-chardev stdio,mux=on,id=stdio0 \
	-serial chardev:stdio0 \
	-semihosting-config enable=on,chardev=stdio0 \
	-mon chardev=stdio0,mode=readline

This creates a chardev hooked to stdio and then connects all of the
subsystems to it. A shorter mechanism would be good to hear about.

Signed-off-by: Keith Packard <keithp@keithp.com>
Message-Id: <20191104204230.12249-1-keithp@keithp.com>
[AJB: fixed up deadlock, minor commit title reword]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2020-01-09 11:41:29 +00:00
Philippe Mathieu-Daudé 6ec0a06366 hw/i386/x86-iommu: Add missing stubs
In commit 6c730e4af9 we introduced a stub to build the MicroVM
machine without Intel IOMMU. This stub is incomplete for the
other PC machines. Add the missing stubs.

Fixes: 6c730e4af9
Reported-by: Travis-CI
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20191220154225.25879-1-philmd@redhat.com>
2020-01-09 11:41:25 +00:00
Philippe Mathieu-Daudé 083b266f69 chardev: Use QEMUChrEvent enum in IOEventHandler typedef
The Chardev events are listed in the QEMUChrEvent enum.

By using the enum in the IOEventHandler typedef we:

- make the IOEventHandler type more explicit (this handler
  process out-of-band information, while the IOReadHandler
  is in-band),
- help static code analyzers.

This patch was produced with the following spatch script:

  @match@
  expression backend, opaque, context, set_open;
  identifier fd_can_read, fd_read, fd_event, be_change;
  @@
  qemu_chr_fe_set_handlers(backend, fd_can_read, fd_read, fd_event,
                           be_change, opaque, context, set_open);

  @depends on match@
  identifier opaque, event;
  identifier match.fd_event;
  @@
   static
  -void fd_event(void *opaque, int event)
  +void fd_event(void *opaque, QEMUChrEvent event)
   {
   ...
   }

Then the typedef was modified manually in
include/chardev/char-fe.h.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20191218172009.8868-15-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-08 11:15:35 +01:00
Cédric Le Goater fc2527fb02 ppc/pnv: fix check on return value of blk_getlength()
blk_getlength() returns an int64_t but the result is stored in a
uint32_t. Errors (negative values) won't be caught by the check in
pnv_pnor_realize() and blk_blockalign() will allocate a very large
buffer in such cases.

Fixes Coverity issue CID 1412226.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200107171809.15556-3-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 12:01:14 +11:00
Cédric Le Goater 3a688294e2 ppc/pnv: check return value of blk_pwrite()
When updating the PNOR file contents, we should check for a possible
failure of blk_pwrite().

Fixes Coverity issue CID 1412228.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200107171809.15556-2-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 12:01:02 +11:00
Greg Kurz b91cad2f07 pnv/psi: Consolidate some duplicated code in pnv_psi_realize()
The proper way to do that would be to use device_class_set_parent_realize(),
but defining a Pnv8PsiClass and a Pnv9PsiClass types with a parent_realize
pointer adds a fair amount of code. Calling pnv_psi_realize() explicitely
is fine for now.

This should probably be achieved with a device realize hook in the
PSI base class and device_class_set_parent_realize() in the children
classes.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <157841476667.66386.13659183399113837990.stgit@bahia.tlslab.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 11:54:19 +11:00
Greg Kurz fcb7e4a8f4 pnv/psi: Add device reset hook
And call it from a QEMU reset handler. This allows each PNV child class to
override the reset hook if needed, eg. POWER8 doesn't but POWER9 does.
The proper way to do that would be to use device_class_set_parent_reset(),
but defining a Pnv8PsiClass and a Pnv9PsiClass types with a parent_reset
pointer adds a fair amount of code. Calling pnv_psi_reset() explicitely is
fine for now.

A subsequent patch will consolidate the call to qemu_register_reset() in
a single place.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <157841476035.66386.17838417527621752518.stgit@bahia.tlslab.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 11:06:42 +11:00
Greg Kurz 806fed593d pnv/xive: Deduce the PnvXive pointer from XiveTCTX::xptr
And use it instead of reaching out to the machine. This allows to get
rid of pnv_get_chip().

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200106145645.4539-11-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 11:01:59 +11:00
Greg Kurz 74e51a38f7 spapr/xive: Deduce the SpaprXive pointer from XiveTCTX::xptr
And use it instead of reaching out to the machine. This allows to get rid
of a call to qdev_get_machine() and to reduce the scope of another one so
that it is only used within the argument list of error_append_hint(). This
is an acceptable tradeoff compared to all it would require to know about
the maximum number of CPUs here without calling qdev_get_machine().

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200106145645.4539-10-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 11:01:59 +11:00
Cédric Le Goater 479509463b xive: Add a "presenter" link property to the TCTX object
This will be used in subsequent patches to access the XIVE associated to
a TCTX without reaching out to the machine through qdev_get_machine().

Signed-off-by: Cédric Le Goater <clg@kaod.org>
[ groug: - split patch
         - write subject and changelog ]
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200106145645.4539-9-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 11:01:59 +11:00
Greg Kurz d8137bb729 ppc/pnv: Add a "pnor" const link property to the BMC internal simulator
This allows to get rid of a call to qdev_get_machine().

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200106145645.4539-8-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 11:01:59 +11:00
Greg Kurz 764f9b2559 ppc/pnv: Add an "nr-threads" property to the base chip class
Set it at chip creation and forward it to the cores. This allows to drop
a call to qdev_get_machine().

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200106145645.4539-7-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 11:01:59 +11:00
Greg Kurz 53981dd505 xive: Use the XIVE fabric link under the XIVE router
Now that the spapr and pnv machines do set the "xive-fabric" link, the
use of the XIVE fabric pointer becomes mandatory. This is checked with
an assert() in a new realize hook. Since the XIVE router is realized at
machine init for the all the machine's life time, no risk to abort an
already running guest (ie. not a hotplug path).

This gets rid of a qdev_get_machine() call.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200106145645.4539-6-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-01-08 11:01:59 +11:00