New version after malc's comments.  (This avoids having to do
  #if defined __linux__ || defined __FreeBSD__ || defined __FreeBSD_kernel__
for the third case.)

Submitted by: Andreas Tobler <andreast@fgznet.ch>  (original version)
Signed-off-by: NJuergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: Nmalc <av1474@comtv.ru>

Submitted by: Andreas Tobler <andreast@fgznet.ch>
Signed-off-by: NJuergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: Nmalc <av1474@comtv.ru>

New version after malc's comments.  (Added error handling.)

Submitted by: Andreas Tobler <andreast@fgznet.ch>
Signed-off-by: NJuergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: Nmalc <av1474@comtv.ru>

When qemu-img can't open the new backing file for a rebase, it prints an error
message which contains the file name of the old backing file. This is wrong,
obviously.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This fixes a possible read beyond the end of the temporary buffers used for
comparing data in the old and the new backing file.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

If a write requests crosses a L2 table boundary and all clusters until the
end of the L2 table are usable for the request, we must not look at the next
L2 entry because we already have arrived at the end of the array.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

If the device can't be created, don't leak the QemuOpts and release the id of
the device that should have been added by the failed device_add.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Hi,

Kevin and I have agreed on the approach for this one now. So here is
the latest version of the patch for QEMU, submitting e820 reservation
entries via fw_cfg.

Cheers,
Jes

Use qemu-cfg to provide the BIOS with an optional table of e820 entries.

Notify the BIOS of the location of the TSS+EPT range to by reserving
it via the e820 table.

This matches a corresponding patch for Seabios, however older versions
of Seabios will default to the hardcoded address range and stay
compatible with current QEMU.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Save/restore information necessary to continue in progress PIO/ATAPI CMD
transfers.

This includes the IO buffer.
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Michael noted we don't allow disabling of MSI for the virtio-serial-pci
device. Fix that.
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
CC: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Since commit 98b19252, all
serial devices declare MULTIPORT feature.
To allow 0.12 compatibility, we should clear this when
max_nr_ports is 1.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

virtio-serial-pci can support multiple ports in the current development
version that will become 0.13. Add compatibility options for the 0.12
and 0.11 pc machine types.
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The version 0.13 will be the new default and compatibility options will
be added to the 0.12 version.
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

I found that the QEMU USB keyboard support does not work properly with
the Set_Idle command.  Once a non-zero value is given to Set_Idle,
then the keyboard reports an event on every poll - not based on the
time issued in the Set_Idle command.

I changed the code (see patch below) and it works for me.  I'm not
that familiar with the qemu internals, so I'm not sure if this is the
best way to implement this feature.

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

Open backing file read-only where possible
Upgrade backing file to read-write during commit, back to read-only after commit
  If upgrade fail, back to read-only. If also fail, "disconnect" the drive.
Signed-off-by: NNaphtali Sprei <nsprei@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Starting with mingw32-runtime 3.15, C99/POSIX
format strings (%zu, %lld, ...) are supported
by defining __USE_MINGW_ANSI_STDIO=1.

As QEMU uses such format strings, unconditionally
define this macro. It won't hurt on older revisions
of mingw32-runtime.

Tested with manually installed mingw32-runtime 3.15
on debian (cross compiled + wine).
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Arghh... Adding missing S-O-B

Hi Anthony.  I wonder if there was a problem when importing my async
command handler patchset.  Since the 'balloon' command completes
immediately, it must call the completion callback before returning.
That call was missing but is added by the patch below.
Signed-off-by: NAdam Litke <agl@us.ibm.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Handlers can generate only one error in a call, we let the
programmer know if they brake this rule and clients will only
get the first generated error.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

QObject Monitor handlers should not call any Monitor print
function: they should only build objects, printing is done
by common code.

Current QMP code will ignore such calls, as we can't send
garbage to clients, additionally it will also emit an
undefined error on the assumption that print calls usually
report errors.

However, the right way to deal with this is to rely on a
return code. This has been fixed by other commit already.

Now, this commit drops the error from monitor_vprintf() and
adds a better debugging mechanism for those 'stray' prints:
we count them if debug is enabled and let the developer know
if a QObject handler is trying to print anything.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This commit verifies the following two rules specified by
Markus Armbruster:

1. If the handler returns failure, it must have passed an error.

   If it didn't, it's broken. Report an internal error to the client,
   and report the bug to the programmer.

2. If the handler returns success, it must not have passed an error.

   If it did, it's broken. Report the error to the client, and report
   the bug to the programmer.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

We can ignore calls to monitor_vprintf() in QMP mode and use
monitor_puts() directly in monitor_json_emitter().

This allows us to drop this ugly hack.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Add configure options (--enable-debug-mon and --disable-debug-mon)
plus the MON_DEBUG() macro.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Now that all handlers are converted to cmd_new_ret(), we can rename
it back to cmd_new(). But now it returns a value.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Not that trivial as the call chain also has to be modified.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Note that this function only fails in QMP, in the user Monitor
it prints the help text instead.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

While there I'm also dropping a unneeded else clause (the last
one in the function).
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The following handlers always succeed and hence can be converted
to cmd_new_ret() in the same commit.

- do_stop()
- do_quit()
- do_system_reset()
- do_system_powerdown()
- do_migrate_cancel()
- do_qmp_capabilities()
- do_migrate_set_speed()
- do_migrate_set_downtime()
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

In order to implement the new error handling and debugging
mechanism for command handlers, we need to change the cmd_new()
callback to return a value.

This commit introduces cmd_new_ret(), which returns a value and
will be used only temporarily to handle the transition from
cmd_new().

That is, as soon as all command handlers are ported to cmd_new_ret(),
it will be renamed back to cmd_new() and the new error handling
and debugging mechanism will be added on top of it.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Moving stuff in console.c to avoid the need for prototypes makes
this patch a bit bigger, but there's no change in the code.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Let register_displayallocator hand over the old width/height to the new
allocator.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>