Now that we have 440 TLB emulation, we can also support running the 440EP
CPU target in system emulation mode.
Signed-off-by: Alexander Graf <agraf@suse.de>
Today we're exposing a Virtex 440 CPU to the guest despite the fact
that we're telling the guest that we're running on a 440EP one in the
device tree.
So let's better default to a real 440EP to make things synced again.
Signed-off-by: Alexander Graf <agraf@suse.de>
Recent dtc doesn't compile our dts anymore. Change all hex numbers to have
0x prefixes, indicate the old version and recompile using recent dtc.
This doesn't change any semantics in the device tree.
Signed-off-by: Alexander Graf <agraf@suse.de>
When running a 440 target, we currently get invalid irq_num values (-1)
which completely confuse the IRQ setting code.
This is most likely due to the missing qdev conversion.
While this shouldn't happen in the first place and should really rather
be fixed by converting the target, I dislike segfaults. So for now, let's
just print a warning and ignore invalid irq_num values.
Signed-off-by: Alexander Graf <agraf@suse.de>
Back in the day when the bamboo target got introduced, the initial TLB was
dictated by KVM. TCG has been missing initial TLB values ever since, rendering
the target unusable for TCG usage.
This patch adds linear TLB maps the way Linux expects them, making the target
work.
Signed-off-by: Alexander Graf <agraf@suse.de>
To be able to support CPU reset, we need to put all register initialization
and initial state into a CPU reset hook instead of a function that is only
called once on bootup.
This is a preparation step for the initial TLB setting code and brings bamboo
more in line with what e500 and virtex already do.
Signed-off-by: Alexander Graf <agraf@suse.de>
When using TCG with a BookE PowerPC core, we need to explicitly initialize
the BookE timers with the correct frequencies.
This was missing for 440EP, since that code came from KVM and was never used
with TCG.
Signed-off-by: Alexander Graf <agraf@suse.de>
Speaker I/O, ISA bus, i8259 PIC, RTC and DMA are no longer set up
individually by the machine. Effectively, no-op speaker I/O is replaced
by pcspk; PIT and i82374 DMA are introduced.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Remove related dead, alternative code.
Wire up PCI host bridge IRQs via GPIO-in IRQs of PCI->ISA bridge.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Alexander Graf <agraf@suse.de>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Prepare Intel 82378 emulation for use by PReP platforms.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Create ISA bus in this device (suggested by Markus).
Rebase onto Memory API, mark memory ops as Little Endian.
Add VMState. Provide access to i8259 IRQs via qdev GPIOs.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Prepare Intel 82374 emulation for use by Intel 82378 PCI->ISA bridge.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Confine to CONFIG_I82374. Add VMState.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Drop pci_prep_init() in favor of extended device state. Inspired by
patches from Hervé and Alex.
Assign the 4 IRQs from the board after device instantiation. This moves
the knowledge out of prep_pci and allows for future machines with
different IRQ wiring (IBM 40P). Suggested by Alex.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Cc: Hervé Poussineau <hpoussin@reactos.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>
Convert to new-style read/write callbacks.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Alexander Graf <agraf@suse.de>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Benoît Canet <benoit.canet@gmail.com>
The prep PowerPC CPU is Big Endian. An explicit byte swap therefore
effectively becomes Little Endian.
Remove explicit byte swaps and mark as Little Endian.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Cc: Michael S. Tsirkin <mst@redhat.com>
Move initialization of vendor ID, etc. to PCIDeviceInfo.
Introduce VMState.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Cc: Hervé Poussineau <hpoussin@reactos.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>
This simplifies the code later when the i8259 moves to the i82378
PCI->ISA bridge and happens to fix a SysBus m48t59 io_base issue
introduced by commit 0fb56ffc5e (m48t59:
drop obsolete address base arithmetic). Suggested by Hervé and Jan.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Hervé Poussineau <hpoussin@reactos.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Blue Swirl <blauwirbel@gmail.com>
Since 0c90c52fab (ppc_prep: convert to memory
API) OHW was "Trying to execute code outside RAM or ROM at 0xfff00700".
The BIOS MemoryRegion is created with a fixed size of 1 MiB.
Ensure that the full size can be accessed since the exception
vectors are located at 0xfff00000 and the BIOS may want to use them.
It thereby no longer depends on the actual BIOS binary size.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Avi Kivity <avi@redhat.com>
Cc: Alexander Graf <agraf@suse.de>
* stefanha/trivial-patches:
Makefile: Remove generated headers on clean
Makefile: Exclude tests/Makefile in unconfigured tree
lm32: Fix mixup of uint32 and uint32_t
tests: Silence gtester in Makefile
qemu-tool: Fix mixup of int64 and int64_t
* pmaydell/arm-devs.for-upstream:
arm: make the number of GIC interrupts configurable
hw/lan9118: Add save/load support
arm: Remove incorrect comment in arm_timer
vexpress, realview: Add (dummy) L2 cache controller
* kraxel/usb.37:
usb-redir: Improve some debugging messages
usb-redir: Try to keep our buffer size near the target size
usb-redir: Pre-fill our isoc input buffer before sending pkts to the host
usb-redir: Dynamically adjust iso buffering size based on ep interval
usb-redir: Clear iso / irq error when stopping the stream
usb: link packets to endpoints not devices
usb: add max_packet_size to USBEndpoint
usb/debug: add usb_ep_dump
usb-desc: USBEndpoint support
usb: add ifnum to USBEndpoint
usb: add USBEndpoint
xhci: Initial xHCI implementation
usb: add audio device model
usb-desc: audio endpoint support
usb: track altsetting in USBDevice
usb: track configuration and interface count in USBDevice.
usb-host: rip out legacy procfs support
Make the basic in-kernel irqchip support selectable via
-machine ...,kernel_irqchip=on. Leave it off by default until it can
fully replace user space models.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This introduces the KVM-accelerated IOAPIC model 'kvm-ioapic' and
extends the IRQ routing setup by the 0->2 redirection when needed.
The kvm-ioapic model has a property that allows to define its GSI base
for injecting interrupts into the kernel model. This will allow to
disentangle PIC and IOAPIC pins for chipsets that support more
sophisticated IRQ routes than the PIIX3. So far the base is kept at 0,
i.e. PIC and IOAPIC share pins 0..15.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Introduce the alternative 'kvm-i8259' device model that exploits KVM
in-kernel acceleration.
The PIIX3 initialization code is furthermore extended by KVM specific
IRQ route setup. GSI injection differs in KVM mode from the user space
model. As we can dispatch ISA-range IRQs to both IOAPIC and PIC inside
the kernel, we do not need to inject them separately. This is reflected
by a KVM-specific GSI handler.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This introduces the alternative APIC device which makes use of KVM's
in-kernel device model. External NMI injection via LINT1 is emulated by
checking the current state of the in-kernel APIC, only injecting a NMI
into the VCPU if LINT1 is unmasked and configured to DM_NMI.
MSI is not yet supported, so we disable this when the in-kernel model is
in use.
CC: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
KVM is forced to disable the IRQ0 override when we run with in-kernel
irqchip but without IRQ routing support of the kernel. Set the fwcfg
value correspondingly. This aligns us with qemu-kvm.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Add the basic infrastructure to active in-kernel irqchip support, inject
interrupts into these models, and maintain IRQ routes.
Routing is optional and depends on the host arch supporting
KVM_CAP_IRQ_ROUTING. When it's not available on x86, we looe the HPET as
we can't route GSI0 to IOAPIC pin 2.
In-kernel irqchip support will once be controlled by the machine
property 'kernel_irqchip', but this is not yet wired up.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Introduce a memory region type that can reserve I/O space. Such regions
are useful for modeling I/O that is only handled outside of QEMU, i.e.
in the context of an accelerator like KVM.
Any access to such a region from QEMU is a bug, but could theoretically
be triggered by guest code (DMA to reserved region). So only warning
about such events once, then ignore them.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Split up the IOAPIC analogously to APIC and i8259. KVM will share the
IOAPICCommonState, the vmstate, reset logic and certain init parts with
the user space model.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
As all devices undergo a reset prior to vmloa, and the reset value of
irr is 0, we do not need to do this clearing for older vmstates
explicitly. Dropping this redundant code will also make KVM integration
a bit simpler.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Analogously to the APIC, we will reuse some parts of the user space
i8259 model for KVM. The base class provides a common device state, the
vmstate, the property list, a reset core and some shared init bits.
This also introduces a common helper to instantiate a single i8259 chip
from the cascade-creating i8259_init function.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Use DeviceState instead of PicState in the public i8259 API. This is
cleaner and allows to reorganize the PIC data structures for KVM reuse.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
To enable migration between accelerated and non-accelerated APIC models,
we will need to handle the timer saving and restoring specially and can
no longer rely on the automatics of VMSTATE_TIMER. Specifically,
accelerated model will not start any QEMUTimer.
This patch therefore factors out the generic bits into apic_next_timer
and use a post-load callback to implemented model-specific logic.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
The KVM in-kernel APIC model will reuse parts of the user space model
while providing the same frontend view to guest and most management
interfaces.
Factor out an APIC base class to encapsulate those parts that will be
shared by user space and KVM model. This class offers callback hooks for
init, base/tpr setting, and the external NMI delivery that will be
set via APICCommonInfo structure and implemented specifically in the
subclasses.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
On real hardware, NMI button events are injected via the LINT1 line of
the APICs. E.g. kdump expect this wiring and gets upset if the per-APIC
LINT1 mask is not respected, i.e. if NMIs are injected to VCPUs that
should not receive them. Change the APIC emulation code to reflect this.
Based on qemu-kvm patch by Lai Jiangshan.
CC: Lai Jiangshan <laijs@cn.fujitsu.com>
Reported-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
All LVTs are masked on reset, so the timer becomes ineffective. Letting
it tick nevertheless is harmless, but will at least create a spurious
trace event.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
More KVM-specific devices will come, so let's start with moving the
kvmclock into a dedicated folder.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Rename msix_supported to msi_supported and control MSI and MSI-X
activation this way. That was likely to original intention for this
flag, but MSI support came after MSI-X.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Running `make distclean' followed by a new out-of-tree build would fail
due to stale generated QMP headers in the tree.
Commit 611b727374 (Makefile: remove more
generated files on clean) made sure generated sources are removed.
Also remove generated headers introduced in commit
e3193601c8 (qapi: use middle mode in QMP
server).
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Since commit dbfe06c62c (build:
split unit test builds to a separate makefile fragment),
in absence of config-host.mak an undefined $(SRC_PATH) breaks
`make distclean' due to /tests/Makefile not being include'able.
Fix by only including when config-host.mak is present.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Commit d23948b15a (lm32: add Milkymist
VGAFB support) introduced a stray usage of the softfloat uint32 type.
Use uint32_t instead.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Michael Walle <michael@walle.cc>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This prettifies make output a little by avoiding a very long line.
As gtester prints the checks when they are run, no information is lost.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Commit cbcfa0418f (link the main loop and
its dependencies into the tools) introduced stray usages of int64.
Use int64_t instead.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Let's report specific errors so that management tools and users can
identify the problem.
Two new qerrors are needed:
* QERR_DEVICE_HAS_NO_MEDIUM for ENOMEDIUM
* QERR_DEVICE_IS_READ_ONLY for EACCES
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Alexander Graf