Taken from binutils SVN, using last GPLv2 version.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

When the host page size is bigger that the target one, unprotecting a
page should:
- mark all the target pages corresponding to the host page as writable
- invalidate all tb corresponding to the host page (and not the target
  page)
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

ia64 has some strangenesses that need to be workaround:
- it has a __clone2() syscall instead of the using clone() one, with
  different arguments, and which is not declared in the usual headers.
- ucontext.uc_sigmask is declared with type long int, while it is
  actually of type sigset_t.
- uc_mcontext, uc_sigmask, uc_stack, uc_link are declared using #define,
  which clashes with the target_ucontext fields. Change their names to
  tuc_*, as already done for some target architectures.

This connects virtio-net to vhost net backend.
The code is structured in a way analogous to what we have with vnet
header capability in tap.

We start/stop backend on driver start/stop as
well as on save and vm start (for migration).
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

will be used by virtio-net for vhost net support
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This adds vhost binary option to tap, to enable vhost net accelerator.
Default is off for now, we'll be able to make default on long term
when we know it's stable.

vhostfd option can be used by management, to pass in the fd. Assigning
vhostfd implies vhost=on.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This adds vhost net device support in qemu. Will be tied to tap device
and virtio by following patches.  Raw backend is currently missing,
will be worked on/submitted separately.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Support host/guest notifiers in virtio-pci.
The last one only with kvm, that's okay
because vhost relies on kvm anyway.

Note on kvm usage: kvm ioeventfd API
is implemented on non-kvm systems as well,
this is the reason we don't need if (kvm_enabled())
around it.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

make it possible to use type without header include,
simplifying header dependencies.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

vhost net backend needs to be notified when
frontend status changes. Add a callback,
similar to set_features.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

vhost needs physical addresses for ring and other queue fields,
so add APIs for these. In particular, add binding API to set
host/guest notifiers.  Will be used by vhost.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

event notifiers are slightly generalized eventfd descriptors. Current
implementation depends on eventfd because vhost is the only user, and
vhost depends on eventfd anyway, but a stub is provided for non-eventfd
case.

We'll be able to further generalize this when another user comes along
and we see how to best do this.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Comment on kvm usage: rather than require users to do if (kvm_enabled())
and/or ifdefs, this patch adds an API that, internally, is defined to
stub function on non-kvm build, and checks kvm_enabled for non-kvm
run.

While rest of qemu code still uses if (kvm_enabled()), I think this
approach is cleaner, and we should convert rest of code to it
long term.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Will be used by vhost to attach/detach to backend.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

With vhost, virtio-pci needs to include kvm.h and kvm.h needs to be built
per-target.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Make vl.o compiled per target and fix a thinko in hw/acpi.c.  It's not trivial
to make kvm.h consumable by compiled-once files.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Patch 2d753894 was missing this check,
when running monitor as /dev/tty and other serial device, i.e:
  qemu -monitor /dev/tty -serial /dev/pts/1

Without this patch any serial device will override the monitor stored
attributes. (monitor is called in main() before any serial device).
Signed-off-by: NShahar Havivi <shaharh@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Older Linux guests don't activate the bus master enable bit. So for those we
can just try to be clever and track if they set the DEVICE_OK bit even though
bus mastering is still disabled.

Under that condition we can disable the windows safety check. With that logic
in place both guests should work just fine. Without PCI hotplug breaks
virtio-net in Linux < 2.6.34 guests.
Signed-off-by: NAlexander Graf <agraf@suse.de>
CC: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Mass Storage Reset and Get Max LUN are class specific requests, but
they were not marked as such in hw/usb-msd.c, moved therefore
ClassInterfaceRequest and ClassInterfaceOutRequest from hw/usb-net.c
to hw/usb.h.
Furthermore there was a problem in hw/usb-ohci.c when using DEBUG
concerning systems where size_t is a 32 bit integer (printf resulted
in a segmentation fault).
Signed-off-by: NMax Reitz <max@tyndur.org>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Use kinfo_getvmmap(3) on FeeBSD >= 7.x and /compat/linux/proc on older
FreeBSD.  (kinfo_getvmmap is preferred since /compat/linux/proc is
usually only mounted on hosts also using the Linuxolator.)

This patch is a bit hacky because the includes needed for kinfo_getvmmap
conflict with other definitions in exec.c by default so I had to `trick
around' a little, but I built the result in FreeBSD 6.4-stable and
7.2-stable tbs and on 8-stable on the host so the hacks at least
should be stable.  (If this is a problem maybe we could also move the
kinfo_getvmmap invocations into a seperate source file but that would
be more work...)
Signed-off-by: NJuergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Just do the same as linux-user does.
Signed-off-by: NJuergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NJuergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

..since /proc usually isn't mounted on FreeBSD.
Signed-off-by: NJuergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Make byte swapping unconditional since PPC is big endian.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Make byte swapping unconditional since PPC is big endian.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Arrange various declarations so that also non-CPU code can access
them, adjust users.

Move CPU specific code to cpus.c.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Replace TARGET_PAGE_SIZE with 4096. Make byte swapping unconditional
since PPC is big endian.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Replace TARGET_PAGE_SIZE with 4096. Make byte swapping unconditional
since PPC is big endian.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Push TARGET_WORDS_BIGENDIAN dependency to board level.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Push TARGET_WORDS_BIGENDIAN dependency to board level.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Use qemu_irqs to trigger CMOS S3 and SMI events.

Avoid using kvm.h, which uses CPUState.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move target specific functions and RAM handling to arch_init.c.

Add a flag to QEMUOptions structure to indicate for which
architectures the option is allowed, check the flag
in run time and remove conditional code in option handling.

Now that no target dependencies remain, compile vl.c only once
for all targets.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

These will be moved later.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Let cpu_exec_init_all() be called from non-CPU code.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Allow balloon.h, gdbstub.h and kvm.h to be included from
non-CPU code.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>