To avoid continually having to bump the initrd load address
to account for larger kernel images, put the initrd halfway
through RAM. This allows large kernels on new boards with lots
of RAM to work OK, without breaking existing usecases for
boards with only 32MB of RAM.
Note that this change fixes in passing a bug where we were
passing an overly large max_size to load_image_targphys()
for the initrd, which meant that we wouldn't correctly refuse
to load an enormous initrd that didn't actually fit into RAM.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Tested-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf:
pseries: Cleanup duplications of ics_valid_irq() code
pseries: Clean up inconsistent variable name in xics.c
target-ppc: Extend FPU state for newer POWER CPUs
target-ppc: Rework storage of VPA registration state
Revert "PPC: pseries: Remove hack for PIO window"
* 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm: (28 commits)
hw/sd.c: add SD card save/load support
vmstate: Add support for saving/loading bitmaps
hw/sd.c: Fix erase for high capacity cards
pflash_cfi01: Fix debug mode printfery
pflash_cfi0x: QOMified
pflash_cfi01: remove unused total_len field
pflash_cfi0x: remove unused base field
hw/versatile_i2c: Use LOG_GUEST_ERROR
hw/arm_l2x0: Use LOG_GUEST_ERROR
hw/arm_sysctl: Use LOG_GUEST_ERROR
hw/armv7m_nvic: Use LOG_GUEST_ERROR and LOG_UNIMP
hw/arm_timer: Use LOG_GUEST_ERROR and LOG_UNIMP
hw/arm_gic: Use LOG_GUEST_ERROR
hw/arm11mpcore: Use LOG_GUEST_ERROR rather than hw_error()
hw/pl190: Use LOG_UNIMP rather than hw_error()
hw/pl110: Use LOG_GUEST_ERROR rather than hw_error()
hw/pl080: Use LOG_GUEST_ERROR and LOG_UNIMP
hw/pl061: Use LOG_GUEST_ERROR
hw/pl050: Use LOG_GUEST_ERROR
hw/exynos4_boards: Don't prematurely explode QEMUMachineInitArgs
...
This follows the logic of host-linux: If a 2.0 device has no ISO
endpoint and no interrupt endpoint with a packet size > 64, we can
attach it also to an 1.1 host controller. In case the redir server does
not report endpoint sizes, play safe and remove the 1.1 compatibility as
well. Moreover, if we detect a conflicting change in the configuration
after the device was already attached, it will be disconnected
immediately.
HdG: Several small cleanups and fixes
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
So that the client gets a notification about us disconnecting the device.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Older versions (anything but the latest) of Linux usbfs + libusb(x),
will submit larger (bulk) transfers split into multiple 16k submissions,
which means that rather then all tds getting linked into the queue in
one atomic operarion they get linked in a bunch at a time, which could
cause problems if:
1) We scan the queue while libusb is in the middle of submitting a split
bulk transfer
2) While this bulk transfer is pending we migrate to another host.
The problem is that after 2, the new host will rescan the queue and
combine the packets in one large transfer, where as 1) has caused the
original host to see them as 2 transfers. This patch fixes this by stopping
combinging if we detect a 16k transfer with its int_req flag set.
This should not adversely effect performance for other cases as:
1) Linux never sets the interrupt flag on packets other then the last
2) Windows does set the in_req flag on each td, but will submit large
transfers in 20k tds thus never triggering the check
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently we only do pipelining for output endpoints, since to properly
support short-not-ok semantics we can only have one outstanding input
packet. Since the ehci and uhci controllers have a limited per td packet
size guests will split large input transfers to into multiple packets,
and since we don't pipeline these, this comes with a serious performance
penalty.
This patch adds helper functions to (re-)combine packets which belong to 1
transfer at the guest device-driver level into 1 large transger. This can be
used by (redirection) usb-devices to enable pipelining for input endpoints.
This patch will combine packets together until a transfer terminating packet
is encountered. A terminating packet is a packet which meets one or more of
the following conditions:
1) The packet size is *not* a multiple of the endpoint max packet size
2) The packet does *not* have its short-not-ok flag set
3) The packet has its interrupt-on-complete flag set
The short-not-ok flag of the combined packet is that of the terminating packet.
Multiple combined packets may be submitted to the device, if the combined
packets do not have their short-not-ok flag set, enabling true pipelining.
If a combined packet does have its short-not-ok flag set the queue will
wait with submitting further packets to the device until that packet has
completed.
Once enabled in the usb-redir and ehci code, this improves the speed (MB/s)
of a Linux guest reading from a USB mass storage device by a factor of
1.2 - 1.5.
And the main reason why I started working on this, when reading from a pl2303
USB<->serial converter, it combines the previous 4 packets submitted per
device-driver level read into 1 big read, reducing the number of packets / sec
by a factor 4, and it allows to have multiple reads outstanding. This allows
for much better latency tolerance without the pl2303's internal buffer
overflowing (which was happening at 115200 bps, without serial flow control).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
My recent uhci cleanup series has introduced a regression, where
qemu sometimes crashes on a device disconnect. The problem is that
the uhci code never checked for a device not / no longer existing, instead
it was relying on usb_handle_packet accepting a NULL device.
But since we now pass usb_handle_packet q->ep->dev, rather then just
a local dev variable, we crash as q->ep == NULL due to the device no longer
existing.
This patch fixes this. Note that this patch also improves over
the old behavior were we would:
1) create a queue for the device
2) create an async for the packet
3) have usb_handle_packet fail
4) destroy the async
5) wait for the queue to be idle for 32 frames
6) destroy the queue
Which was rather sub-optimal.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Kills the ugly "switch (device_id) { ... }" struct and makes it easier
to figure what the differences between the uhci variants are.
Need our own DeviceClass struct for that so we can allocate some space
to store UHCIInfo.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Guard against re-definition of EHCI_DEBUG. Allows for turning on of debug info
from configure (using --qemu-extra-cflags="-DEHCI_DEBUG=1") rather than source
code hacking.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Seperate the PCI stuff from the EHCI components. Extracted the PCIDevice
out into a new wrapper struct to make EHCIState non-PCI-specific. Seperated
tho non PCI init component out into a seperate "common" init function.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Pull the DMAContext for the PCI DMA out at device init time and put it into
the device state. Use dma_memory_read/write() instead of pci specific versions.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The capabilities register and operational register offsets can vary from one
EHCI implementation to the next. Parameterise accordingly.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Factor out the code which checks whenever a usb device is attached
to the port in question. No functional change.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Rename the function for xhci_port_* naming scheme, also drop
the xhci parameter as port carries a pointer to xhci anyway.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add {get,set}_field macros (simliar to ehci) to read and update
some bits of a word. Put them into use for updating pls (port
link state) values. Also add a enum for pls values.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
With both text (curses) and graphics (vnc/sdl/spice/...) display active
vga text mode emulation fails to update both correctly. Depending on
whenever vga_update_text() or vga_draw_text() happens to be called first
only the text display or only the graphics display will see display
resolution changes and full redraws.
Fix it by calling both text/gfx resize functions in both code paths and
keep track of full screen redraws needed in VGACommonState fields.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Stop abusing displaysurface fields for text mode displays.
(bpp = 0, width = cols, height = lines).
Add flags to displaystate indicating whenever text mode display
(curses) or gfx mode displays (sdl, vnc, ...) are present.
Add separate displaychangelistener callbacks for text / gfx mode
resize & updates.
This allows to enable gfx and txt diplays at the same time and also
paves the way for more cleanups in the future.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When adding DisplayChangeListeners the set_mouse and cursor_define
callbacks have been left in DisplayState for some reason. Fix it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
A couple of places in xics.c open-coded the same logic as is already
implemented in ics_valid_irq(). This patch fixes the code duplication.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
Throughout xics.c 'nr' is used to refer to a global interrupt number, and
'server' is used to refer to an interrupt server number (i.e. CPU number).
Except in icp_set_mfrr(), where 'nr' is used as a server number. Fix this
confusing inconsistency.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
This reverts commit a178274efa.
Contrary to that commit's message, the users of old_portio are not all
gone. In particular VGA still uses it via portio_list_add().
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
Some guest operating systems' drivers (Mac OS X in particular) fail to
properly initialize the Receive Address registers (probably expecting
them to be pre-initialized by an earlier component, such as a specific
proprietary BIOS). This patch pre-initializes the RA registers, allowing
OS X networking to function properly. Other guest operating systems are
not affected, and free to (re)initialize these registers during boot.
[According to the datasheet the Address Valid bits in the RA registers
are cleared on PCI or software reset. This patch adds the NIC's MAC
address and sets Address Valid on reset. So we diverge from real
hardware behavior here. -- Stefan]
Signed-off-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Real HW always treats RX ring with RDH == RDT as empty.
Emulation is supposed to behave the same.
Reported-by: Chris Webb <chris.webb@elastichosts.com>
Reported-by: Richard Davies <richard.davies@elastichosts.com>
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
For target-mips also change the return type to bool.
Make include paths for cpu-qom.h consistent for alpha and unicore32.
Signed-off-by: Andreas Färber <afaerber@suse.de>
[AF: Updated new target-openrisc function accordingly]
Acked-by: Richard Henderson <rth@twiddle.net> (for alpha)
Allow RAM size to be configurable for cirrus, to allow migration
compatibility from qemu-kvm.
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Adapt emulate_spapr_hypercall() accordingly.
Needed for changing spapr_hypercall() argument type to PowerPCCPU.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Needed for changing cpu_has_work() argument type to CPUState.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Needed for changing qemu_cpu_kick() argument type to CPUState and
for moving halted field into CPUState.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Change return type to bool, move to include/qemu/cpu.h and
add documentation.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
[AF: Updated new caller qemu_in_vcpu_thread()]
Simplifies the call in apic_sipi() again and needed for moving halted
field to CPUState.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Prepares for using a link<> property to connect APIC with CPU and for
changing the CPU APIs to CPUState.
Resolve Coding Style warnings by moving the closing parenthesis of
foreach_apic() macro to next line.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
This prepares for changing the variable type from void*.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
(L)APIC is a part of cpu [1] so move APIC initialization inside of
x86_cpu object. Since cpu_model and override flags currently specify
whether APIC should be created or not, APIC creation&initialization is
moved into x86_cpu_apic_init() which is called from x86_cpu_realize().
[1] - all x86 cpus have integrated APIC if we overlook existence of i486,
and it's more convenient to model after majority of them.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
* 'qspi.2' of git://developer.petalogix.com/public/qemu:
xilinx_zynq: added QSPI controller
xilinx_spips: Generalised to model QSPI
m25p80: Support for Quad SPI
Start introducing AioContext, which will let us remove globals from
aio.c/async.c, and introduce multiple I/O threads.
The bottom half functions now take an additional AioContext argument.
A bottom half is created with a specific AioContext that remains the
same throughout the lifetime. qemu_bh_new is just a wrapper that
uses a global context.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch updates SD card model to support save/load of card's state.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Standard capacity cards SDSC use byte unit address while SDHC and SDXC cards use
block unit address (512 bytes) when setting ERASE_START and ERASE_END with CMD32
and CMD33, we have to account for this.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This DPRINTF was throwing a warning due to a missing cast.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
QOMified the pflash_cfi0x so machine models can connect them up in custom ways.
Kept the pflash_cfi0x_register functions as is. They can still be used to
create a flash straight onto system memory.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This field is completely unused.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This field is completely unused. The base address should also be abstracted
away from the device anyway. Removed.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use LOG_GUEST_ERROR to report guest accesses to bad register
offsets, and LOG_UNIMP for access to the unimplemented
test registers.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Don't explode QEMUMachineInitArgs in every realview init
function; just pass it to the common realview_init() code
instead.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Implement byte/halfword read and write for the NVIC SCB_SHPRx
(System Handler Priority Registers). Do this by removing SHPR word access
from nvic_readl/writel and adding common code to hande all access
sizes in nvic_sysreg_read/write.
Because the "nvic_state *s" variable now needs to be declared in
nvic_sysreg_read/write, the "void *opaque" parameter of
nvic_readl/writel is changed to "nvic_state *s".
Signed-off-by: Andre Beckus <mikemail98-qemu@yahoo.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* 's390-for-upstream' of git://repo.or.cz/qemu/agraf:
s390: sclp ascii console support
s390: sclp signal quiesce support
s390: sclp event support
s390: sclp base support
s390: use sync regs for register transfer
s390/kvm_stat: correct sys_perf_event_open syscall number
s390x: fix -initrd in virtio machine
This includes infrastructure patches that don't do much by themselves
but should help vfio and q35 make progress.
Also included is rework of virtio-net to use iovec APIs
for vector access - helpful to make it more secure
and in preparation for a new feature that will allow
arbitrary s/g layout for guests.
Also included is a pci bridge bugfix by Avi.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQEcBAABAgAGBQJQjrGtAAoJECgfDbjSjVRpoRUH/iW2wYfnPtgjIF2gSBmdlmLK
m5uLSuayHdiNXfjXeNJRySQDu4HZU3K9fDnU+HIMUUmvx/jgaMIbSQZ1gayqQhf8
T1WH21wkkSTEnW0y9t+C3NtRzdK6AbQ1Jy/TqgP++tjT0w54QkoGKEnX3mvvNoDv
xdT+dYcpzMFLZ2KaimP73EwILMMR45iRTPhrjSN2wlwCPPnNcg1Jt0Atb6pYveja
1/46ZY+VxNgRtVSNhnV8xeyyJgwPOrUReKlrqD67YQAeMbzqrel9XDBJuZ3kScWt
vv2AQ0Fe8GMkMkbNaQ0mFh6pXQ2arTAYb8sb6PColCLOn5yNqFz95YGebG36gxk=
=HP23
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'mst/tags/for_anthony' into staging
virtio,pci infrastructure
This includes infrastructure patches that don't do much by themselves
but should help vfio and q35 make progress.
Also included is rework of virtio-net to use iovec APIs
for vector access - helpful to make it more secure
and in preparation for a new feature that will allow
arbitrary s/g layout for guests.
Also included is a pci bridge bugfix by Avi.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* mst/tags/for_anthony: (25 commits)
pci: avoid destroying bridge address space windows in a transaction
virtio-net: enable mrg buf header in tap on linux
virtio-net: test peer header support at init time
virtio-net: minor code simplification
virtio-net: simplify rx code
virtio-net: switch tx to safe iov functions
virtio-net: first s/g is always at start of buf
virtio-net: refactor receive_hdr
virtio-net: use safe iov operations for rx
virtio-net: avoid sg copy
iov: add iov_cpy
virtio-net: track host/guest header length
pcie: Convert PCIExpressHost to use the QOM.
pcie: pass pcie window size to pcie_host_mmcfg_update()
pci: Add class 0xc05 as 'SMBus'
pci: introduce pci_swizzle_map_irq_fn() for standardized interrupt pin swizzle
pci_ids: add intel 82801BA pci-to-pci bridge id
pci: pci capability must be in PCI space
pci: make each capability DWORD aligned
qemu: enable PV EOI for qemu 1.3
...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This code adds console support by implementing SCLP's ASCII Console
Data event. This is the same console as LPARs ASCII console or z/VMs
sysascii.
The console can be specified manually with something like
-chardev stdio,id=charconsole0 -device sclpconsole,chardev=charconsole0,id=console0
Newer kernels will autodetect that console and prefer that over virtio
console.
When data is received from the character layer it creates a service
interrupt to trigger a Read Event Data command from the guest that will
pick up the received character byte-stream.
When characters are echo'ed by the linux guest a Write Event Data occurs
which is forwarded by the Event Facility to the console that supports
a corresponding mask value.
Console resizing is not supported.
The character layer byte-stream is buffered using a fixed size iov
buffer.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This implements the sclp signal quiesce event via the SCLP Event
Facility.
This allows to gracefully shutdown a guest by using system_powerdown
notifiers. It creates a service interrupt that will trigger a
Read Event Data command from the guest. This code will then add an
event that is interpreted by linux guests as ctrl-alt-del.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Several SCLP features are considered to be events. Those events don't
provide SCLP commands on their own, instead they are all based on
Read Event Data, Write Event Data, Write Event Mask and the service
interrupt. Follow-on patches will provide SCLP's Signal Quiesce (via
system_powerdown) and the ASCII console.
Further down the road the sclp line mode console and configuration
change events (e.g. cpu hotplug) can be implemented.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This adds a more generic infrastructure for handling Service-Call
requests on s390. Currently we only support a small subset of Read
SCP Info directly in target-s390x. This patch provides the base
infrastructure for supporting more commands and moves Read SCP
Info.
In the future we could add additional commands for hotplug, call
home and event handling.
Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
When using -initrd in the virtio machine, we need to indicate the initrd
start and size inside the kernel image. These parameters need to be stored
in native endianness.
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Richard Henderson <rth@twiddle.net>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Calling memory_region_destroy() in a transaction is illegal (and aborts),
as until the transaction is committed, the region remains live.
Fix by moving destruction until after the transaction commits. This requires
having an extra set of regions, so the new and old regions can coexist.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Modern linux supports arbitrary header size,
which makes it possible to pass mrg buf header
to tap directly without iovec mangling.
Use this capability when it is there.
This removes the need to deal with it in
vhost-net as we do now.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
There's no reason to query header support at random
times: at load or feature query.
Driver also might not query functions.
Cleaner to do it at device init.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Remove code duplication using guest header length that we track.
Drop specific layout requirement for rx buffers: things work
using generic iovec functions in any case.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Now that we know host hdr length, we don't need to
duplicate the logic in receive_hdr: caller can
figure out the offset itself.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Avoid magling iov manually: use safe iov operations
for processing packets incoming to guest.
This also removes the requirement for virtio header to
fit the first s/g entry exactly.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Avoid tweaking iovec during receive. This removes
the need to copy the vector.
Note: we currently have an evil cast in work_around_broken_dhclient
and unfortunately this patch does not fix it - just
pushes the evil cast to another place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Calling memory_region_destroy() in a transaction is illegal (and aborts),
as until the transaction is committed, the region remains live.
Fix by moving destruction until after the transaction commits. This requires
having an extra set of regions, so the new and old regions can coexist.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Let's use PCIExpressHost with QOM.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This allows q35 to pass/set the size of the pcie window in its update routine.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
[jbaron@redhat.com: add PCI_CLASS_SERIAL_SMBUS definition]
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Introduce pci_swizzle_map_irq_fn() for interrupt pin swizzle which is
standardized. PCI bridge swizzle is common logic, by introducing
this function duplicated swizzle logic will be avoided later.
[jbaron@redhat.com: drop opaque argument]
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Adds pci id constants which will be used by q35.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
pci capability must be in PCI space.
It can't lay in PCIe extended config space.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
PCI spec (see e.g. 6.7 Capabilities List in spec rev 3.0)
requires that each capability is DWORD aligned.
Ensure this when allocating space by rounding size up to 4.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Enable KVM PV EOI by default. You can still disable it with
-kvm_pv_eoi cpu flag. To avoid breaking cross-version migration,
enable only for qemu 1.3 (or in the future, newer) machine type.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Rather than assert, simply return PCI_INTX_DISABLED when we don't
have a pci_route_irq_fn. PIIX already returns DISABLED for an
invalid pin, so users already deal with this state. Users of this
interface should only be acting on an ENABLED or INVERTED return
value (though we really have no support for INVERTED). Also
complain loudly when we hit this so we don't forget it's missing.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
pci-assign only uses a subset of the flexibility msi_get_message()
provides, but it's still worthwhile to use it.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
vfio-pci and pci-assign both do this on their own for setting up
direct MSI injection through KVM. Provide a helper function for
this in MSI code.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* kraxel/usb.68: (36 commits)
xhci: fix usb name in caps
xhci: make number of interrupters and slots configurable
xhci: allow disabling interrupters
xhci: flush endpoint context unconditinally
xhci: fix function name in error message
uhci: Use only one queue for ctrl endpoints
uhci: Retry to fill the queue while waiting for td completion
uhci: Always mark a queue valid when we encounter it
uhci: When the guest marks a pending td non-active, cancel the queue
uhci: Detect guest td re-use
uhci: Verify queue has not been changed by guest
uhci: Immediately free queues on device disconnect
uhci: Store ep in UHCIQueue
uhci: Make uhci_fill_queue() actually operate on an UHCIQueue
uhci: Add uhci_read_td() helper function
uhci: Rename UHCIAsync->td to UHCIAsync->td_addr
uhci: Move emptying of the queue's asyncs' queue to uhci_queue_free
uhci: Drop unnecessary forward declaration of some static functions
uhci: Don't retry on error
uhci: cleanup: Add an unlink call to uhci_async_cancel()
...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
On PPC, we don't have PIO. So usually PIO space behind a PCI bridge is
accessible via MMIO. Do this mapping explicitly by mapping the PIO space
of our PCI bus into a memory region that lives in memory space.
Signed-off-by: Alexander Graf <agraf@suse.de>
At present, using 'system_powerdown' from the monitor or otherwise
instructing qemu to (cleanly) shut down a pseries guest will not work,
because we did not have a method of signalling the shutdown request to the
guest.
PAPR does include a usable mechanism for this, though it is rather more
involved than the equivalent on x86. This involves sending an EPOW
(Environmental and POwer Warning) event through the PAPR event and error
logging mechanism, which also has a number of other functions.
This patch implements just enough of the event/error logging functionality
to be able to send a shutdown event to the guest. At least with modern
guest kernels and a userspace that is up and running, this means that
system_powerdown from the qemu monitor should now work correctly on pseries
guests.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
With PAPR guests, hypercalls allow registration of the Virtual Processor
Area (VPA), SLB shadow and dispatch trace log (DTL), each of which allow
for certain communication between the guest and hypervisor. Currently, we
store the addresses of the three areas and the size of the dtl in
CPUPPCState.
The SLB shadow and DTL are variable sized, with the size being retrieved
from within the registered memory area at the hypercall time. This size
can later be overwritten with other information, however, so we need to
save the size as of registration time. We already do this for the DTL,
but not for the SLB shadow, so this patch fixes that.
In addition, we change the storage of the VPA information to use fixed
size integer types which will make life easier for syncing this data with
KVM, which we will need in future.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
Currently the pseries machine code allows a callback to be registered
for a hypercall number twice, as long as it's the same callback the second
time. We don't test for duplicate registrations of RTAS callbacks at all
so it will effectively be last registratiojn wins.
This was originally done because it was awkward to ensure that the
registration happened exactly once, but the code has since been
restructured so that's no longer the case.
Duplicate registration of a hypercall or RTAS call could well suggest
a duplicate initialization which could cause other problems, so this patch
makes duplicate registrations a bug, to prevent the old behaviour from
hiding other bugs.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
When -usb option is used, global varible usb_enabled is set.
And all the plaform will create one USB controller according
to this variable. In fact, global varibles make code hard
to read.
So this patch is to remove global variable usb_enabled and
add USB option in machine options. All the plaforms will get
USB option value from machine options.
USB option of machine options will be set either by:
* -usb
* -machine type=pseries,usb=on
Both these ways can work now. They both set USB option in
machine options. In the future, the first way will be removed.
Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
it was wrongly using serial_hds[0] instead of serial_hds[1]
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Device tree properties need to be specified in big endian. Fix the
bamboo memory size property accordingly.
Signed-off-by: Alexander Graf <agraf@suse.de>
CC: qemu-stable@nongnu.org
Added the QSPI controller to the Zynq. 4 SPI devices are attached to allow
modelling of the different geometries. E.G. Dual parallel and dual stacked
mode can both be tested with this one arrangement.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Extended the xilinx spips controller to model QSPI as well. Paremeterised the
operational difference with the normal spi controller (num_ss_bits, width of the
tx/rx fifo heads etc.). Multiple bus functionality is modelled (needed for QSPI
dual parallel mode. LQSPI is modelled.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Added the Quad mode read and write commands. Data remains serialized on a
single wire, i.e. the quad mode instructions just behave the same as single
mode, with the expection of modelling the varying number of dummy/mode bytes
between the address bytes and the first data word.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Remove xtensa_sim_init that only explodes machine init args, rename
sim_init to xtensa_sim_init.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
