Igor Kovalenko [Tue, 28 Jul 2009 21:32:23 +0000 (01:32 +0400)]
sparc64 flush pending conditional evaluations before exposing cpu state
If translation block is interrupted by e.g. mmu exception
we need to compute conditional flags for inclusion into
saved cpu state. Otherwise after return from trap
conditional instructions would use stale psr/xcc data.
Signed-off-by: igor.v.kovalenko@gmail.com
--
Kind regards,
Igor V. Kovalenko Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Bill Paul [Wed, 29 Jul 2009 17:22:55 +0000 (10:22 -0700)]
e1000.c doesn't properly emulate EERD and ICS registers
Once again, the emulation of the EERD and ICS registers in e1000.c is
incorrect. Nobody has noticed this before because none of the Intel-written
e1000 drivers use these registers, and all of the independently written open
source drivers copy Intel's example, so they don't use them either.
Regardless, these registers are documented in the programmer's manuals, and
their emulated behavior doesn't match the verified behavior of real hardware,
so any software that does use them doesn't function correctly.
-Bill
Signed-off-by: Bill Paul <wpaul@windriver.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
When a VM state change handler changes VM state, other VM state change
handlers can see the state transitions out of order.
bmdma_map(), scsi_disk_init() and virtio_blk_init() install VM state
change handlers to restart DMA. These handlers can vm_stop() by
running into a write error on a drive with werror=stop. This throws
the VM state change handler callback into disarray. Here's an example
case I observed:
0. The virtual IDE drive goes south. All future writes return errors.
1. Something encounters a write error, and duly stops the VM with
vm_stop().
2. vm_stop() calls vm_state_notify(0).
3. vm_state_notify() runs the callbacks in list vm_change_state_head.
It contains ide_dma_restart_cb() installed by bmdma_map(). It also
contains audio_vm_change_state_handler() installed by audio_init().
When sending a copyrect command to the vnc client, we must also update
the local server surface. Otherwise the server's and the client's idea
of the screen content run out of sync and screen updates don't work
correctly.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Paolo Bonzini [Mon, 27 Jul 2009 21:17:51 +0000 (23:17 +0200)]
fix migration to obey -S
Since migration returns right away, starting the VM right
after calling qemu_start_incoming_migration is wrong even
if -S is not passed. We have to do this after migration
has completed.
Cc: Glauber Costa <glommer@redhat.com> Cc: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Nathan Froyd [Tue, 25 Aug 2009 15:20:00 +0000 (08:20 -0700)]
target-mips: fix conditional moves off fp condition codes
Conditional moves off fp condition codes were using the result of
get_fp_bit to isolate and test the relevant condition code. However,
get_fp_bit returns the bit number of the condition code, not a
bitmask. (Compare the use of get_fp_bit in gen_compute_branch1, for
instance.)
Fixed by shifting a bitmask into place using the result of get_fp_bit in
the relevant functions (gen_mov{ci,cf_s,cf_d,cf_ps}).
Mark McLoughlin [Wed, 22 Jul 2009 09:02:51 +0000 (10:02 +0100)]
Add a pc-0.11 machine type and make the pc type an alias
The pc-0.11 type allows users of qemu-0.11 to use a machine type which
they know will remain compatible when the upgrade to qemu-0.12.
Management tools may choose to canonicalize the 'pc' machine type to
'pc-0.11' so that if the 'pc' alias changes target in future versions
of qemu, the machine type used will remain compatible.
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Mark McLoughlin [Wed, 22 Jul 2009 09:02:50 +0000 (10:02 +0100)]
Add machine type aliases
Add an 'alias' field to QEMUMachine and display it in the output of
'qemu -M ?' with an '(aliased to foo)' suffix.
Aliases can change targets in newer versions of qemu, so management tools
may choose canonicalize machine types to ensure that if a user chooses an
alias, that the actual machine type used will remain compatible in
future.
This is intended to mimic a symlink to a machine description file.
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Mark McLoughlin [Wed, 22 Jul 2009 08:11:42 +0000 (09:11 +0100)]
Add support for fd=name to tap and socket networking
This allows a program to initialize a host networking device using a
file descriptor passed over a unix monitor socket.
The program must first pass the file descriptor using SCM_RIGHTS
ancillary data with the getfd monitor command. It then may do
"host_net_add tap fd=name" to use the named file descriptor.
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Mark McLoughlin [Wed, 22 Jul 2009 08:11:39 +0000 (09:11 +0100)]
Add SCM_RIGHTS support to unix socket character devices
If a file descriptor is passed via a message with SCM_RIGHTS ancillary
data on a unix socket, store the file descriptor for use in the
chr_read() handler. Close the file descriptor if it was not used.
The qemu_chr_get_msgfd() API provides access to the passed descriptor.
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Mark McLoughlin [Wed, 22 Jul 2009 08:11:38 +0000 (09:11 +0100)]
Make tcp_chr_read() use recvmsg()
Split out tcp_chr_recv() out of tcp_chr_read() and implement it on
non-win32 using recvmsg(). This is needed for a subsequent patch
which implements SCM_RIGHTS support.
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Glauber Costa [Fri, 24 Jul 2009 20:20:23 +0000 (16:20 -0400)]
fix broken migration
While fixing migration with -S, commit 89befdd1a6b18215153b8976682d57b7d03d5782 broke the rest of us. Poor
glommer, with a poor family, spare him his life from this monstruosity.
Since the unconditional vm_start, not autostart was the villain, I'm putting
back autostart. Let me know if you prefer other solutions, it doesn't really matter,
doesn't really matter to me.
Any way the wind blows...
Signed-off-by: Glauber Costa <glommer@redhat.com> CC: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Ed Swierk [Thu, 23 Jul 2009 21:13:34 +0000 (14:13 -0700)]
slirp: Use monotonic clock if available (v2)
Calling gettimeofday() to compute a time interval can cause problems if
the system clock jumps forwards or backwards; replace updtime() with
qemu_get_clock(rt_clock), which calls clock_gettime(CLOCK_MONOTONIC) if
it is available.
Also remove some useless macros.
Signed-off-by: Ed Swierk <eswierk@aristanetworks.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Beth Kon [Fri, 24 Jul 2009 16:26:59 +0000 (12:26 -0400)]
HPET fixes for reg writes
This patch addresses the problems found by Andriy Gapon:
- The code was incorrectly overwriting the high order 32
bits of the timer and hpet config registers. This didn't show up
in testing because linux and windows use hpet in legacy mode,
where the high order 32 bits (advertising available interrupts)
of the timer config register are ignored, and the high order 32
bits of the hpet config register are reserved and unused.
- The mask for level-triggered interrupts was off by a bit. (hpet
doesn't currently support level-triggered interrupts).
In addition, I removed some unused #defines, and corrected the ioapic
interrupt values advertised. I'd set this up early in hpet development
and never went back to correct it, and no bugs resulted since linux and
windows use hpet in legacy mode where available interrupts are ignored.
Signed-off-by: Beth Kon <eak@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Jan Kiszka [Wed, 22 Jul 2009 15:03:52 +0000 (17:03 +0200)]
slirp: Fix guestfwd for incoming data
Unless a virtual server address was explicitly defined (which is
impossible with the legacy -net channel format), guestfwd did not
properly forwarded host->guest packets. This patch fixes it.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
qmu-img: fix qemu-img convert to generate a valid image when the source referenced a backing file
Make 'qemu-img convert' copies unallocated parts of the source image
when -B option was not specified.
Signed-off-by: Akkarit Sangpetch <asangpet@andrew.cmu.edu> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Kevin Wolf [Fri, 17 Jul 2009 06:20:41 +0000 (08:20 +0200)]
vmdk: Fix backing file handling
Instead of storing the backing file in its own BlockDriverState, VMDK uses the
BlockDriverState of the raw image file it opened. This is wrong and breaks
functions that access the backing file or protocols. This fix replaces all
occurrences of s->hd->backing_* with bs->backing_*.
This fixes qemu-iotests failure in 020 (Commit changes to backing file).
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Add save/restore support to the LSI logic SCSI device model.
This patch requires "Handle BH's queued by AIO completions in
qemu_aio_flush()" to work reliably. The combination of those two
patches survived 300+ migrations with heavy IO load running in the
guest.
Signed-off-by: Nolan Leake <nolan <at> sigbus.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Christoph Egger [Fri, 17 Jul 2009 17:48:02 +0000 (17:48 +0000)]
isxdigit -> qemu_isxdigit
Hi!
Attached patch uses qemu_isxdigit() instead of isxdigit().
Fixes build warning on NetBSD.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
--
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Karl-Hammerschmidt-Str. 34, 85609 Dornach b. Muenchen
Geschaeftsfuehrer: Thomas M. McCoy, Giuliano Meroni
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632
Christoph Egger [Fri, 17 Jul 2009 17:48:01 +0000 (17:48 +0000)]
fix build warnings
Hi!
Attached patch fixes build warnings due to use of different pointer
signedness.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
--
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Karl-Hammerschmidt-Str. 34, 85609 Dornach b. Muenchen
Geschaeftsfuehrer: Thomas M. McCoy, Giuliano Meroni
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632
Blue Swirl [Fri, 17 Jul 2009 11:01:45 +0000 (11:01 +0000)]
Fix OpenBSD build
The header sys-queue.h must be #included early, otherwise at some point OS
queue macros will be used. On OpenBSD, those don't define TAILQ_FOREACH_SAFE.
#define snd_pcm_sw_params_alloca(ptr) do { assert(ptr); *ptr = (snd_pcm_sw_params_t *) alloca(snd_pcm_sw_params_sizeof()); memset(*ptr, 0, snd_pcm_sw_params_sizeof()); } while (0)
The assert generates: "error: the address of 'sw_params' will always
evaluate as 'true'" which combined with -Werror prevents alsaaudio.o
from being built with certain versions of GCC.
fix for bad macaddr of e1000 in Windows 2003 server with original MS driver
The sequence of reading from eeprom is "offset by one" moved because of a false
detection of a clock cycle after an eeprom reset. Keeping the last clock value
after a reset keeps it in sync.
Signed-off-by: Naphtali Sprei <nsprei@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Add id field to DeviceState. Make "info qtree" print it.
This helps users and management apps identifying devices in monitor
output, which is especially useful with otherwise identical devices
such as two virtio disks.
This patch doesn't add a way to set the id, followup patches will do.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
no_user: prevent users from adding certain devices.
desc: description of the device.
alias: to allow user friendly shortcuts on the command line, i.e.
-device usbmouse instead of -device "QEMU USB Mouse" or
-device lsi instead of -device lsi53c895a
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This add support for switching devices into a compatibility mode
using device properties. Machine types can have a list of properties
for specific devices attached to allow the easy creation of machine
types compatible to older qemu versions.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch is a major overhaul of the device properties. The properties
are saved directly in the device state struct now, the linked list of
property values is gone.
Advantages:
* We don't have to maintain the list with the property values.
* The value in the property list and the value actually used by
the device can't go out of sync any more (used to happen for
the pci.devfn == -1 case) because there is only one place where
the value is stored.
* A record describing the property is required now, you can't set
random properties any more.
There are bus-specific and device-specific properties. The former
should be used for properties common to all bus drivers. Typical
use case is bus addressing, i.e. pci.devfn and i2c.address.
Properties have a PropertyInfo struct attached with name, size and
function pointers to parse and print properties. A few common property
types have PropertyInfos defined in qdev-properties.c. Drivers are free
to implement their own very special property parsers if needed.
Properties can have default values. If unset they are zero-filled.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Glauber Costa [Tue, 14 Jul 2009 22:26:51 +0000 (18:26 -0400)]
fix segfault in setting migration speed
Hi,
Whoever wrote this migrate_set_speed function is totally stupid.
Any failed or completed migration keeps its state to allow probing of
migration data, but has no associated file anymore. It is, thus,
possible to crash qemu by calling migrate_set_speed after a migration
is finished (or failed, or cancelled), but before another one starts.
This patch fixes it.
Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Stuart Brady [Sun, 12 Jul 2009 19:09:40 +0000 (20:09 +0100)]
Remove dead i386 assembly code from softmmu_header.h
This patch removes dead i386 assembly code from softmmu_header.h.
The code is conditional on ASM_SOFTMMU, which is never defined.
Optimisation for the fast path is already handled by tcg_out_qemu_ld()
and tcg_out_qemu_st(), so there seems to be little need for this code.
Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>