* mdroth/qga-pull-4-27-12:
  qemu-ga: persist tracking of fsfreeze state via filesystem
  qemu-ga: add a whitelist for fsfreeze-safe commands
  qemu-ga: improve recovery options for fsfreeze

On my PPC host, HOST_LONG_SIZE is not defined even after
running configure. Use the normal C way of determining the
long size instead.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: Nmalc <av1474@comtv.ru>

This reverts commit b754e4fc.

Signed-off-by: Nmalc <av1474@comtv.ru>

Update OpenBIOS images to SVN r1056.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move socket-related Solaris libraries to $solarisnetlibs and use them
for both $LIBS and $libs_qga.

Fixes build on illumos without --disable-guest-agent.
Signed-off-by: NLee Essen <lee.essen@nowonline.co.uk>
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

ga_channel_open() was using open flag O_ASYNC for SIGIO-driven I/O.
This breaks on illumos, so fall back to POSIX I_SETSIG ioctl (SIGPOLL).
Signed-off-by: NLee Essen <lee.essen@nowonline.co.uk>
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

The timeout argument was unused up to now,
but it can be used to reduce the poll_timeout when it is infinite
(negative value) or larger than timeout.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Initially, vga_get_text_resolution returns a text resolution of 1 x 1
(vga register values are 0).

This is visible during MIPS Malta boot with SDL. It also occurs with the
i386 or x86_64 system emulation when it runs in single step mode:

QEMU changes the size of the SDL window to the smallest possible value
which is supported by the window manager. As this is not the calculated
size, QEMU switches to scaled mode. When the BIOS or the VGA driver sets
the normal text resolution, the window stays small and displays
microscopic characters.

Ignoring text resolutions of 1 x 1 or less avoids these problems.
A similar workaround already exists for too large resolutions.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fold is_ram_rom and is_ram_rom_romd() into callers.

Change is_romd() and section_addr() to take MemoryRegion
instead of MemoryRegionSection for consistency and
use memory_region_ prefix.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move TLB handling and softmmu code load helpers to cputlb.c,
compile only for softmmu targets.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Make s_cputlb_empty_entry 'const'.

Rename tlb_flush_jmp_cache() to tb_flush_jmp_cache().

Refactor code to add cpu_tlb_reset_dirty_all(),
memory_region_section_get_iotlb() and
memory_region_is_unassigned().

Remove unused cpu_tlb_update_dirty().

Fix coding style in areas to be moved.
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

* 'maintainers-up' of git://repo.or.cz/qemu/afaerber:
  MAINTAINERS: Document all stable trees
  MAINTAINERS: Fix SCM tree for virtio-9p
  MAINTAINERS: Indicate type of SCM
  MAINTAINERS: Fix TCI file pattern
  MAINTAINERS: Fix virtio-9p file pattern
  MAINTAINERS: Fix PC file pattern

* 'cocoa-for-upstream' of git://repo.or.cz/qemu/afaerber:
  Drop darwin-user
  configure: add '--disable-cocoa' switch
  raw-posix: Do not use CONFIG_COCOA macro

* 'prep-up' of git://repo.or.cz/qemu/afaerber:
  prep: Move int-ack register from PReP to Raven PCI emulation
  prep: Initialize PC speaker
  isa: Add isa_bus_from_device() method
  fdc: Parametrize ISA base, IRQ and DMA
  i82378/i82374: Do not create DMA controller twice

* 'qom-cpu-rest.v1' of git://github.com/afaerber/qemu-cpu:
  Makefile: Simplify compilation of target-*/cpu.c
  target-mips: Start QOM'ifying CPU init
  target-mips: QOM'ify CPU
  target-m68k: Add QOM CPU subclasses
  target-m68k: Start QOM'ifying CPU init
  target-m68k: QOM'ify CPU reset
  target-m68k: QOM'ify CPU
  target-sh4: Start QOM'ifying CPU init
  target-sh4: QOM'ify CPU reset
  target-sh4: QOM'ify CPU
  MAINTAINERS: Downgrade target-mips and target-sh4 to Odd Fixes
  MAINTAINERS: Downgrade target-m68k to Odd Fixes

It's been orphaned, not compiling for a long time and despite Apple's
drop of their Rosetta ppc emulation technology with Mac OS X Lion no one
has stepped up to fix it.

Testing necessary changes wrt QOM'ification thus is impossible, so we
might as well remove it completely.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>

When SDL support is disabled, there is no way to build QEMU without
Cocoa support on MacOS X. This patch adds '--disable-cocoa' switch and
allows to build QEMU without both SDL and Cocoa frontends.
Signed-off-by: NPavel Borzenkov <pavel.borzenkov@gmail.com>
[AF: Adapt help output]
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>

Use __APPLE__ and __MACH__ macros instead of CONFIG_COCOA to detect Mac
OS X host. The patch is based on Ben Leslie's patch:
http://patchwork.ozlabs.org/patch/97859/Signed-off-by: NBen Leslie <benno@benno.id.au>
Signed-off-by: NPavel Borzenkov <pavel.borzenkov@gmail.com>
Acked-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>

Register is one byte-wide (as per specification), so there is no need
to specify endianness.
Signed-off-by: NHervé Poussineau <hpoussin@reactos.org>
[AF: Limit access validity to size 1]
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>

Currently, qemu-ga may die/get killed/go away for whatever reason after
guest-fsfreeze-freeze has been issued, and before guest-fsfreeze-thaw
has been issued. This means the only way to unfreeze the guest is via
VNC/network/console access, but obtaining that access after-the-fact can
often be very difficult when filesystems are frozen. Logins will almost
always hang, for instance. In many cases the only recourse would be to
reboot the guest without any quiescing of volatile state, which makes
this a corner-case worth giving some attention to.

A likely failsafe for this situation would be to use a watchdog to
restart qemu-ga if it goes away. There are some precautions qemu-ga
needs to take in order to avoid immediately hanging itself on I/O,
however, namely, we must disable logging and defer to processing/creation
of user-specific logfiles, along with creation of the pid file if we're
running as a daemon. We also need to disable non-fsfreeze-safe commands,
as we normally would when processing the guest-fsfreeze-freeze command.

To track when we need to do this in a way that persists between multiple
invocations of qemu-ga, we create a file on the guest filesystem before
issuing the fsfreeze, and delete it when doing the thaw. On qemu-ga
startup, we check for the existance of this file to determine
the need to take the above precautions.

We're forced to do it this way since a more traditional approach such as
reading/writing state to a dedicated state file will cause
access/modification time updates, respectively, both of which will hang
if the file resides on a frozen filesystem. Both can occur even if
relatime is enabled. Checking for file existence will not update the
access time, however, so it's a safe way to check for fsfreeze state.

An actual watchdog-based restart of qemu-ga can itself cause an access
time update that would thus hang the invocation of qemu-ga, but the
logic to workaround that can be handled via the watchdog, so we don't
address that here (for relatime we'd periodically touch the qemu-ga
binary if the file $qga_statedir/qga.state.isfrozen is not present, this
avoids qemu-ga updates or the 1 day relatime threshold causing an
access-time update if we try to respawn qemu-ga shortly after it goes
away)
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>

Currently we rely on fsfreeze/thaw commands disabling/enabling logging
then having other commands check whether logging is disabled to avoid
executing if they aren't safe for running while a filesystem is frozen.

Instead, have an explicit whitelist of fsfreeze-safe commands, and
consolidate logging and command enablement/disablement into a pair
of helper functions: ga_set_frozen()/ga_unset_frozen()
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>

guest-fsfreeze-thaw relies on state information obtained from
guest-fsfreeze-freeze to determine what filesystems to unfreeze.
This is unreliable due to the fact that that state does not account
for FIFREEZE being issued by other processes, or previous instances
of qemu-ga. This means in certain situations we cannot thaw
filesystems even with a responsive qemu-ga instance at our disposal.

This patch allows guest-fsfreeze-thaw to be issued unconditionally.
It also adds some additional logic to allow us to thaw filesystems
regardless of how many times the filesystem's "frozen" refcount has
been incremented by any guest processes.

Also, guest-fsfreeze-freeze now operates atomically: on success all
freezable filesystems are frozen, and on error all filesystems are
thawed. The ambiguous "GUEST_FSFREEZE_STATUS_ERROR" state is no
longer entered.
Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>

All targets except for ppc now have a standalone cpu.c file.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Move code not dependent on mips_def_t from cpu_mips_init() into a
QOM initfn, as a start.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NRichard Henderson <rth@twiddle.net>

Embed CPUMIPSState as first member of QOM MIPSCPU.

Let CPUClass::reset() call cpu_state_reset() for now.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NRichard Henderson <rth@twiddle.net>

Move code from cpu_m68k_set_model() into model-specific initfns
and inline the remaining parts into cpu_m68k_init().

Let m68k_cpu_list() print CPU classes alphabetically except for "any".
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NLaurent Vivier <Laurent@Vivier.EU>
Tested-by: NLaurent Vivier <Laurent@Vivier.EU>

Move model-independent code from cpu_m68k_init() into a QOM initfn.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NLaurent Vivier <Laurent@Vivier.EU>
Tested-by: NLaurent Vivier <Laurent@Vivier.EU>

Move code from cpu_state_reset() into QOM m68k_cpu_reset().
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NLaurent Vivier <Laurent@Vivier.EU>
Tested-by: NLaurent Vivier <Laurent@Vivier.EU>

Embed CPUM68KState as first member of QOM M68kCPU.
Drop cpu_m68k_close() in favor of object_delete().

Let CPUClass::reset() call cpu_state_reset() for now.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NLaurent Vivier <Laurent@Vivier.EU>
Tested-by: NLaurent Vivier <Laurent@Vivier.EU>

Move code from cpu_sh4_init() into a QOM initfn.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Move code from cpu_state_reset() to QOM superh_cpu_reset().
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>

Embed CPUSH4State as first member of SuperHCPU.

Let CPUClass::reset() call cpu_state_reset() for now.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>

Patches are not being handled, so let's downgrade to Odd Fixes.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NAurélien Jarno <aurelien@aurel32.net>

m68k patches are not being handled, so let's downgrade to Odd Fixes.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NPaul Brook <paul@codesourcery.com>

Speaker init has been added in 506b7ddf,
but audio subsystem init was missing.
Signed-off-by: NHervé Poussineau <hpoussin@reactos.org>
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>

Signed-off-by: NHervé Poussineau <hpoussin@reactos.org>
Acked-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>

Keep the PC values as defaults but allow to override them for PReP.
Signed-off-by: NHervé Poussineau <hpoussin@reactos.org>
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>

This fixes a crash in PReP emulation when using DMA controller to access
floppy drive.
Signed-off-by: NHervé Poussineau <hpoussin@reactos.org>
Signed-off-by: NAndreas Färber <andreas.faerber@web.de>