A function may recursively call device search functions or may call
serveral different device search function. Passing the S390pciState to
search functions as an argument instead of looking up it inside the
search functions lowers the number of calling s390_get_phb().
Signed-off-by: NYi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: NPierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

In order to support a greater number of devices we use a QTAILQ
list of devices instead of a limited array.

This leads us to change:
- every lookup function s390_pci_find_xxx() for QTAILQ
- the FH_MASK_INDEX to index up to 65536 devices
Signed-off-by: NPierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

When initializing a PCI device, an address space is required during PCI
core initialization and before the call to the embedding object hotplug
callback. To provide this AS, we allocate a S390PCIIOMMU object
containing this AS. Initialization of S390PCIIOMMU object is done
before the PCI device is completely created. So that we cannot
associate the IOMMU with the device at the moment. To track the IOMMU
object, we use g_hash functions with the PCI device's bus address as a
key to provide an array of pointers indexed by the PCI device's devfn
to the allocated IOMMU.
Signed-off-by: NYi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: NPierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

Currently S390PCIIOMMU is a normal struct. Let's make it inherit Object
in order to take advantage of QOM. In addition, we move some stuff
related to IOMMU from S390PCIBusDevice to S390PCIIOMMU.
Signed-off-by: NYi Min Zhao <zyimin@linux.vnet.ibm.com>
Acked-by: NPierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

Let's use kvm_gsi_routing_enabled() to check if kvm supports
KVM_CAP_IRQ_ROUTING in order to avoid a needless ioctl invocation.
Signed-off-by: NFei Li <sherrylf@linux.vnet.ibm.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: NChristian Borntraeger <borntraeger@de.ibm.com>

We chain our compat handler via the CCW_COMPAT macros and via the
class_init function. (e.g. ccw_machine_2_7_class_options calls
ccw_machine_2_8_class_options). As all class_init functions in that
chain call SET_MACHINE_COMPAT for their compat settings, and
SET_MACHINE_COMPAT will append there is no need to do that again.
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

Remove the Niagara stub implementation from sun4u.c and add a machine,
compatible with Legion simulator from the OpenSPARC T1 project.

The machine uses the firmware supplied with the OpenSPARC T1 project,
http://download.oracle.com/technetwork/systems/opensparc/OpenSPARCT1_Arch.1.5.tar.bz2
in the directory S10image/, and is able to boot the supplied Solaris 10 image.

Note that for compatibility with the naming conventions for SPARC machines
the new machine name is lowercase niagara.
Signed-off-by: NArtyom Tarasenko <atar4qemu@gmail.com>
Reviewed-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NArtyom Tarasenko <atar4qemu@gmail.com>
Reviewed-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NArtyom Tarasenko <atar4qemu@gmail.com>

We have never has the concept of global TLB entries which would avoid
the flush so we never actually use this flag. Drop it and make clear
that tlb_flush is the sledge-hammer it has always been.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
[DG: ppc portions]
Acked-by: NDavid Gibson <david@gibson.dropbear.id.au>

qemu can't hotplug display devices.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Message-id: 1483970138-20360-1-git-send-email-kraxel@redhat.com

Coverity points out that if we fail in the "creating resources"
loop in virtio_gpu_load() we will leak various resources (CID 1356431).
Failing a VM load is going to leave the simulation in a complete mess,
but we can tidy up to the point that a full system reset should
get us back to sanity.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 1483969123-14839-3-git-send-email-peter.maydell@linaro.org
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

The 'hostmem' field in VirtIOGPU is used to track the total memory
used in pixmaps so that we can impose a maximum limit on it.
However this field is neither migrated nor recalculated on
VM load, which means that after a migration it will be incorrectly
too low, which can allow the guest to use more pixmap memory
than it should. The per-resource hostmem fields are not filled
in either as we reallocate them in the load function.

Recalculate the memory used for each pixmap and the total memory
used as we reallocate the pixmaps in virtio_gpu_load().
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 1483969123-14839-2-git-send-email-peter.maydell@linaro.org
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Commit 4299b90e added a check which is too broad, given that the source
pitch value is not required to be initialized for solid fill operations.
This patch refines the blit_is_unsafe() check to ignore source pitch in
that case. After applying the above commit as a security patch, we
noticed the SLES 11 SP4 guest gui failed to initialize properly.
Signed-off-by: NBruce Rogers <brogers@suse.com>
Message-id: 20170109203520.5619-1-brogers@suse.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

In virgl_cmd_get_capset function, it uses g_malloc to allocate
a response struct to the guest. As the 'resp'struct hasn't been full
initialized it will lead the 'resp->padding' field to the guest.
Use g_malloc0 to avoid this.
Signed-off-by: NLi Qiang <liqiang6-s@360.cn>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 58188cae.4a6ec20a.3d2d1.aff2@mx.google.com

[ kraxel: resolved conflict ]
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Instead of using qemu_register_reset().
That way we get proper cleanup for free.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Message-id: 1484054281-26139-1-git-send-email-kraxel@redhat.com

Currently the ac97 device emulation doesn't have a exit function,
hot unplug this device will leak some memory. Add a exit function to
avoid this.
Signed-off-by: NLi Qiang <liqiang6-s@360.cn>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 58520052.4825ed0a.27a71.6cae@mx.google.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Currently the es1370 device emulation doesn't have a exit function,
hot unplug this device will leak some memory. Add a exit function to
avoid this.
Signed-off-by: NLi Qiang <liqiang6-s@360.cn>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 585200c9.a968ca0a.1ab80.4c98@mx.google.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

split the old SysBus init function into an instance_init
and Device realize function
Signed-off-by: Nxiaoqiang zhao <zxq_yx_007@163.com>
Message-id: 20161231011720.3965-3-zxq_yx_007@163.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

split the old SysBus init function into an instance_init
and Device realize function
Signed-off-by: Nxiaoqiang zhao <zxq_yx_007@163.com>
Message-id: 20161231011720.3965-2-zxq_yx_007@163.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

With "ps2: use QEMU qcodes instead of scancodes", key handling was
changed to qcode base. But all scancodes are not converted to new one.

This adds some missing qcodes/scancodes what I found in using.

[set1 and set3 are from <hpoussin@reactos.org>]
Signed-off-by: NOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reviewed-by: NHervé Poussineau <hpoussin@reactos.org>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Move DIMM devices from global _SB scope to a new \_SB.MHPC
container along with common methods used by DIMMs:
  MCRS, MRST, MPXM, MOST, MEJ00, MSCN, MTFY

this reduces AML size on 12 * #slots bytes,
i.e. up to 3072 bytes for 265 slots.
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com>

That reduces DSDT by 910 bytes when memory hotplug
isn't enabled.

While doing so drop intermediate variables/arguments
passing around ACPI_MEMORY_HOTPLUG_IO_LEN and making
it local to memory_hotplug.c, hardcoding it there as
it can't change.

Also don't pass around ACPI_MEMORY_HOTPLUG_BASE through
intermediate variables/arguments where it's not needed.
Instead initialize in module static variable when MMIO
region is mapped and use that within memory_hotplug.c
whenever it's required.
That way MMIO base specified only at one place and AML
with MMIO would always use the same value.
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com>

Move defines used locally only by memory_hotplug.c into it
from header files.
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com>

>From this patch all the memory hotplug related AML
bits are consolidated in one place within DSTD.
Follow up patches will utilize that to simplify
memory hotplug related C/AML code.
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com>

It consolidates memory hotplug AML in one place within DSDT
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

since static and dynamic parts of memory MHPD device are now
in the same table (DSDT), there is no point keeping
them scattered across the table, so consolidate it
in one place.

There aren't any functional change, only AML text movement
from externally refferenced MHPD scope directly into
MHPD device declaration.
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com>

Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com>

Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com>

This patch allows advising guest with host MTU's by setting
host_mtu parameter.

If VIRTIO_NET_F_MTU has been successfully negotiated, MTU
value is passed to the backend.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Aaron Conole <aconole@redhat.com
Signed-off-by: NMaxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch provides a way for virtio-net to notify the
backend about the host MTU set by the user.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Aaron Conole <aconole@redhat.com>
Signed-off-by: NMaxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

This patch implements VHOST_USER_PROTOCOL_F_NET_MTU
protocol feature and VHOST_USER_NET_SET_MTU request so
that the backend gets notified of the user defined host
MTU.

If backend supports VHOST_USER_PROTOCOL_F_REPLY_ACK,
QEMU assumes MTU is valid if success is returned.

Vhost-net driver sends this request through a new
vhost_net_set_mtu vhost_ops entry.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Aaron Conole <aconole@redhat.com>
Signed-off-by: NMaxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1295637
Upon set_link monitor command or upon netdev deletion
virtio-net sends link down indication to the guest
and stops vhost if one is used.
Guest driver can still submit data for TX until it
recognizes link loss. If these packets not returned by
the host, the Windows guest will never be able to finish
disable/removal/shutdown.
Now each packet sent by guest after NIC indicated link
down will be completed immediately.
Signed-off-by: NYuri Benditovich <yuri.benditovich@daynix.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

Add procedure for fast drop of queued packets, acting like
pop and push without mapping the buffers into memory.
Signed-off-by: NYuri Benditovich <yuri.benditovich@daynix.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

Make virtio queue suitable for push operation from qemu
after vhost was stopped.
Signed-off-by: NYuri Benditovich <yuri.benditovich@daynix.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

Bring virtio queue to correct internal  state for host-to-guest
operations when vhost is temporary stopped.
Signed-off-by: NYuri Benditovich <yuri.benditovich@daynix.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

A broken guest can specify physical addresses that correspond
to any memory region, but it shouldn't be able to change ROM.
Signed-off-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
Cc: qemu-stable@nongnu.org
Acked-by: NPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

Correct recalculation of vq->inuse after migration for the corner case
where the avail_idx has already wrapped but used_idx not yet.

Also change the type of the VirtQueue.inuse to unsigned int. This is
done to be consistent with other members representing sizes (VRing.num),
and because C99 guarantees max ring size < UINT_MAX but does not
guarantee max ring size < INT_MAX.
Signed-off-by: NHalil Pasic <pasic@linux.vnet.ibm.com>
Fixes: bccdef6b ("virtio: recalculate vq->inuse after migration")
CC: qemu-stable@nongnu.org
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>

Now, AER capa version is fixed to v2, if assigned device isn't v2,
then this value will be inconsistent between guest and host
Signed-off-by: NDou Liyang <douly.fnst@cn.fujitsu.com>
Signed-off-by: NCao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>