This conveys the intention better, and scales to more than >1
threads contending the mutex with the iothread (as long as all
of them have a "quiescent point" like the TCG thread has).

Also, on Mac OS X the fair_mutex somehow didn't work as intended
and deadlocked.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Tested-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Support commas in the parameter list of multiboot modules as well as for the
kernel command line, by using double commas (via get_opt_value()).
Signed-off-by: NAdam Lackorzynski <adam@os.inf.tu-dresden.de>
Reviewed-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Serial and parallel devices created with -device are not reported in
the PIIX4 configuration space, and are hence not picked up by the DSDT.
This upsets Windows, which hides them altogether from the guest.

To avoid this, check at the end of machine initialization whether the
corresponding I/O ports have been registered.  The new function in
ioport.c does this; this also requires a tweak to isa_unassign_ioport.

I left the comment in piix4_pm_initfn since the registers I moved do
seem to match the 82371AB datasheet.  There are some quirks though.
We are setting this bit:

    "Device 8 EIO Enable (EIO_EN_DEV8)—R/W. 1=Enable PCI access to the
    device 8 enabled I/O ranges to be claimed by PIIX4 and forwarded
    to the ISA/EIO bus. 0=Disable. The LPT_MON_EN must be set to enable
    the decode."

but not LPT_MON_EN (bit 18 at 50h):

    LPT Port Enable (LPT_MON_EN)—R/W. 1=Enable accesses to parallel
    port address range (LPT_DEC_SEL) to generate a device 8 (parallel
    port) decode event. 0=Disable.

We're also setting the LPT_DEC_SEL field (that's the 0x60 written to
63h) to 11, which means reserved, rather than to 01 (378h-37Fh).

Likewise we're not setting SA_MON_EN, SB_MON_EN (respectively bit 14
and bit 16 at address 50h) for the serial ports.  However, we're setting
COMA_DEC_SEL and COMB_DEC_SEL correctly, unlike the corresponding register
for the parallel port.

All these fields are left as they are, since they are probably only
meant to be used in the DSDT.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Add a new binary and generation directory to the gitignore file
Signed-off-by: NAlexandre Raymond <cerbere@gmail.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Drop the open-coded MAC assignment from net_init_nic and replace it with
standard qemu_macaddr_default_if_unset which is also used by qdev. That
avoid creating colliding MACs when instantiating NICs via different
mechanisms.

This change requires to store the MAC as MACAddr in NICInfo, and the
remaining nd_table users need to be updated.

Based on suggestion by Peter Maydell.

CC: Markus Armbruster <armbru@redhat.com>
CC: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Include the client type name into the output of 'info network'. The
result looks like this:

(qemu) info network
VLAN 0 devices:
  rtl8139.0: type=nic,model=rtl8139,macaddr=52:54:00:12:34:57
Devices not on any VLAN:
  virtio-net-pci.0: type=nic,model=virtio-net-pci,macaddr=52:54:00:12:34:56
   \ network1: type=tap,fd=5

CC: Markus Armbruster <armbru@redhat.com>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Position entries of net_client_types according to the corresponding
values of NET_CLIENT_TYPE_*. The array size is now defined by
NET_CLIENT_TYPE_MAX. This will allow to obtain entries based on type
value in later patches.

At this chance rename NET_CLIENT_TYPE_SLIRP to NET_CLIENT_TYPE_USER for
the sake of consistency.

CC: Markus Armbruster <armbru@redhat.com>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Improve the layout when listing non-vlan clients via 'info network'. The
result looks like this:

(qemu) info network
Devices not on any VLAN:
  orphan: net=10.0.2.0, restricted=n
  virtio-net-pci.0: model=virtio-net-pci,macaddr=52:54:00:12:34:56
   \ network2: fd=5
  e1000.0: model=e1000,macaddr=52:54:00:12:34:57
   \ network1: net=10.0.2.0, restricted=n
  rtl8139.0: model=rtl8139,macaddr=52:54:00:12:34:58

ie. peers are grouped, orphans are listed as before.

CC: Markus Armbruster <armbru@redhat.com>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Linux 3.0 gained support for unprivileged ICMP ping sockets. Use this
feature to forward guest pings to the outer world. The host admin has to
set the ping_group_range in order to grant access to those sockets. To
allow ping for the users group (GID 100):

echo 100 100 > /proc/sys/net/ipv4/ping_group_range
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Recent smb daemons tend to terminate themselves via a process group
SIGTERM. If the daemon is still in qemu's group by that time, qemu will
die as well. Avoid this by always pushing fork_exec processes into a
group of their own, not just (unused) type 2 execs.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Remove this pointless wrapping.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Instead of accepting every DHCP/BOOTP and TFTP packet, only invoke the
built-in servers if the target is the virtual host.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

All other boolean arguments accept on|off - except for slirp's restrict.
Fix that while still accepting the formerly allowed yes|y|no|n, but
reject everything else. This avoids accidentally allowing external
connections because syntax errors were so far interpreted as
'restrict=no'.

CC: Gleb Natapov <gleb@redhat.com>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This aligns the code to what the documentation claims: Allow everything
but requests that would have to be routed outside of the virtual LAN.

So we need to drop the unneeded IP-level filter, allow TFTP requests,
and add the missing protocol-level filter to ICMP.

CC: Gleb Natapov <gleb@redhat.com>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Superseded by -machine. Therefore, this patch removes -M from the help
list and pushes -machine at the same place in the output.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

-machine somehow suggests that it selects the machine, but it doesn't.
Fix that before this command is set in stone.

Actually, -machine should supersede -M and allow to introduce arbitrary
per-machine options to the command line. That will change the internal
realization again, but we will be able to keep the user interface
stable.
Tested-by: NIan Campbell <ian.campbell@citrix.com>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

FS-Freeze only works with Linux.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This change is needed because commit 06e12b65
now uses an unsigned long long value
(uint64_t && unsigned long long => unsigned long long).

Cc: Tsuneo Saito <tsnsaito@gmail.com>
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This patch adds support for a usb-redir device, which takes a chardev
as a communication channel to an actual usbdevice using the usbredir protocol.

Compiling the usb-redir device requires usbredir-0.3 to be installed for
the usbredir protocol parser, usbredir-0.3 also contains a server for
redirecting usb traffic from an actual usb device. You can get the 0.3
release of usbredir here:
http://people.fedoraproject.org/~jwrdegoede/usbredir-0.3.tar.bz2
(getting a more formal site for it is a WIP)

Example usage:
1) Start usbredirserver for a usb device:
sudo usbredirserver 045e:0772
2) Start qemu with usb2 support + a chardev talking to usbredirserver +
   a usb-redir device using this chardev:
qemu ... \
  -readconfig docs/ich9-ehci-uhci.cfg \
  -chardev socket,id=usbredirchardev,host=localhost,port=4000 \
  -device usb-redir,chardev=usbredirchardev,id=usbredirdev
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

"next" is reserved in systemtap thus using this as a
trace parameter name causes trouble when trying to trace
with systemtap.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Spec on UHCI_STS_USBERR: "If the TD on which the error interrupt
occurred also had its IOC bit set, both this bit and Bit 0 are set."

Make UHCI emulation do that.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Remove leftover calls to usb_hid_changed().

Take care to update the changed flag after delivering a event via
GET_REPORT like we do when sending events via interrupt endpoint.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch implements MMU faults caused by TTE.NFO and TTE.E:
- access other than nonfaulting load to a page marked NFO should
  raise data_access_exception
- nonfaulting load to a page marked with E bit should raise
  data_access_exception

To distinguish nonfaulting loads, this patch extends (abuses?) the rw
argument of get_physical_address_data().  rw is set to 4 on nonfaulting
loads.
Signed-off-by: NTsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Nonfaulting loads should raise fast_data_access_MMU_miss traps as
normal loads do.  It is up to the guest OS kernel that detect MMU misses
on nonfaulting load instructions and make them complete without signaling.
Signed-off-by: NTsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

cpu_get_phys_page_nofault() calls get_physical_address() twice,
that results in overwriting the fault status in the SFSR.
We need this change in order for nonfaulting loads to raising MMU faults
as normal loads do.
Also removed the call to cpu_get_physical_page_desc() since we are
going to modify nonfaulting loads raising MMU faults.
Signed-off-by: NTsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This patch makes cpu_get_phys_page_debug() independent from
cpu_get_phys_page_nofault() in advance of implementing nonfaulting load.
This also modifies cpu_get_phys_page_nofault() to be compiled only on
TARGET_SPARC64 because it is not required on SPARC32.
Signed-off-by: NTsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Introduce cpu_sparc_get_phys_page() to be used as a help for splitting
cpu_get_phys_page_debug() from cpu_get_phys_page_nofault().
Signed-off-by: NTsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Add macros for SFSR fields and use macros instead of magic numbers.
Also fix the update of the register fields on MMU faults.
Signed-off-by: NTsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Add macros for TTE bits and modify to use macros instead of
magic numbers.
Signed-off-by: NTsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This adds the initial set of QMP/QAPI commands provided by the guest
agent:

guest-sync
guest-ping
guest-info
guest-shutdown
guest-file-open
guest-file-read
guest-file-write
guest-file-seek
guest-file-flush
guest-file-close
guest-fsfreeze-freeze
guest-fsfreeze-thaw
guest-fsfreeze-status

The input/output specification for these commands are documented in the
schema.

Example usage:

  host:
    qemu -device virtio-serial \
         -chardev socket,path=/tmp/vs0.sock,server,nowait,id=qga0 \
         -device virtserialport,chardev=qga0,name=org.qemu.quest_agent.0
         ...

    echo "{'execute':'guest-info'}" | socat stdio unix-connect:/tmp/qga0.sock

  guest:
    qemu-ga -m virtio-serial -p /dev/virtio-ports/org.qemu.guest_agent.0 \
            -p /var/run/qemu-guest-agent.pid -d
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@gmail.com>

This is the actual guest daemon, it listens for requests over a
virtio-serial/isa-serial/unix socket channel and routes them through
to dispatch routines, and writes the results back to the channel in
a manner similar to QMP.

A shorthand invocation:

  qemu-ga -d

Is equivalent to:

  qemu-ga -m virtio-serial -p /dev/virtio-ports/org.qemu.guest_agent.0 \
          -f /var/run/qemu-ga.pid -d
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@gmail.com>

Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@gmail.com>

Missing from previous addition of error to qerror.h. Needed for
qerror_format() and friends.
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@gmail.com>