Commit Graph

66 Commits

Author SHA1 Message Date
Peter Maydell c8057f951d Support 'help' as a synonym for '?' in command line options
For command line options which permit '?' meaning 'please list the
permitted values', add support for 'help' as a synonym, by abstracting
the check out into a helper function.

This change means that in some cases where we were being lazy in
our string parsing, "?junk" will now be rejected as an invalid option
rather than being (undocumentedly) treated the same way as "?".

Update the documentation to use 'help' rather than '?', since '?'
is a shell metacharacter and thus prone to fail confusingly if there
is a single character filename in the current working directory and
the '?' has not been escaped. It's therefore better to steer users
towards 'help', though '?' is retained for backwards compatibility.

We do not, however, update the output of the system emulator's -help
(or any documentation autogenerated from the qemu-options.hx which
is the source of the -help text) because libvirt parses our -help
output and will break. At a later date when QEMU provides a better
interface so libvirt can avoid having to do this, we can update the
-help text too.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-02 13:16:42 -05:00
Anthony Liguori e6a7671998 Merge commit 'quintela/migration-next-v5' into staging
* commit '6c779f22a93cc6e4565b940ef616e3efc5b50ba5':
  Change ram_save_block to return -1 if there are no more changes
  ram: save_live_setup() we don't need to synchronize the dirty bitmap.
  ram: iterate phase
  ram: save_live_complete() only do one loop
  ram: save_live_setup() don't need to sent pages
  savevm: split save_live into stage2 and stage3
  savevm: split save_live_setup from save_live_state
  savevm: introduce is_active method
  savevm: Refactor cancel operation in its own operation
  savevm: remove SaveLiveStateHandler
  savevm: remove SaveSetParamsHandler
  savevm: Live migration handlers register the struct directly
  savevm: Use a struct to pass all handlers
2012-07-30 09:58:48 -05:00
Jia Liu e67db06e9f target-or32: Add target stubs and QOM cpu
Add OpenRISC target stubs, QOM cpu and basic machine.

Signed-off-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-07-27 21:12:55 +00:00
Orit Wasserman 6c779f22a9 Change ram_save_block to return -1 if there are no more changes
It will return 0 if the page is unmodifed.

Signed-off-by: Orit Wasserman <owasserm@redhat.com>
2012-07-23 14:02:28 +02:00
Juan Quintela 6d2fe810ed ram: save_live_setup() we don't need to synchronize the dirty bitmap.
1st: we were synchonizing the dirty bitmap before calling
      memory_global_dirty_log_start().

2nd: We are marking all pages as dirty anywhere, no reason to go
     through all the bitmap to "mark" dirty same pages twice.

So, call removed.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-07-20 08:19:27 +02:00
Juan Quintela 00d94f3f76 ram: iterate phase
We only need to synchronize the bitmap when the number of dirty pages is low.
Not every time that we call the function.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-07-20 08:19:27 +02:00
Juan Quintela b81e712d25 ram: save_live_complete() only do one loop
We were doing the same loop that stage2, and a new one for stage3.  We
only need the one for stage3.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-07-20 08:19:27 +02:00
Juan Quintela 5910d1e6cb ram: save_live_setup() don't need to sent pages
We should send pages on interate phase, not in setup one.  This was a
"bug".  Just removing the loop does what we want.  Tested that it
works with current ram_load().

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-07-20 08:19:27 +02:00
Juan Quintela 16310a3cca savevm: split save_live into stage2 and stage3
We split it into 2 functions, foo_live_iterate, and foo_live_complete.
At this point, we only remove the bits that are for the other stage,
functionally this is equivalent to previous code.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-07-20 08:19:27 +02:00
Juan Quintela d1315aac6e savevm: split save_live_setup from save_live_state
This patch splits stage 1 to its own function for both save_live
users, ram and block.  It is just a copy of the function, removing the
parts of the other stages.  Optimizations would came later.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-07-20 08:19:27 +02:00
Juan Quintela 9b5bfab05f savevm: Refactor cancel operation in its own operation
Intead of abusing stage with value -1.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-07-20 08:19:27 +02:00
Juan Quintela 7908c78d3e savevm: Live migration handlers register the struct directly
Notice that the live migration users never unregister, so no problem
about freeing the ops structure.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-07-20 08:19:27 +02:00
Juan Quintela 45f33f01f3 Maintain the number of dirty pages
Calculate the number of dirty pages takes a lot on hosts with lots
of memory.  Just maintain how many pages are dirty.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-06-29 13:31:07 +02:00
Juan Quintela 4508bd9ed8 Exit loop if we have been there too long
Checking each 64 pages is a random magic number as good as any other.
We don't want to test too many times, but on the other hand,
qemu_get_clock_ns() is not so expensive either.  We want to be sure
that we spent less than 50ms (half of buffered_file timer), if we
spent more than 100ms, all the accounting got wrong.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-06-29 13:31:04 +02:00
Juan Quintela 5b3c963887 Only calculate expected_time for stage 2
ram_save_remaining() is an expensive operation when there is a lot of memory.
So we only call the function when we need it.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-06-29 13:28:09 +02:00
Orit Wasserman 8e21cd3200 Add migration_end function
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
2012-06-29 13:27:28 +02:00
Orit Wasserman 3a697f697b Add debugging infrastructure
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
2012-06-29 13:27:14 +02:00
Orit Wasserman 0c51f43d7a Add save_block_hdr function
Signed-off-by: Benoit Hudzia <benoit.hudzia@sap.com>
Signed-off-by: Petter Svard <petters@cs.umu.se>
Signed-off-by: Aidan Shribman <aidan.shribman@sap.com>
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
2012-06-29 13:18:28 +02:00
Orit Wasserman 0ff1f9f585 Add missing check for host_from_stream_offset return value for RAM_SAVE_FLAG_PAGE
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
2012-06-29 10:38:28 +02:00
Andreas Färber f283edc482 arch_init: Fix AltiVec build on Darwin/ppc
Commit f29a56147b (implement
-no-user-config command-line option (v3)) introduced uses of bool
in arch_init.c. Shortly before that usage is support code for
AltiVec (conditional to __ALTIVEC__).

GCC's altivec.h may in a !__APPLE_ALTIVEC__ code path redefine bool,
leading to type mismatches. altivec.h recommends to #undef for C++
compatibility, but doing so in C leads to bool remaining undefined.

Fix by redefining bool to _Bool as mandated for stdbool.h by POSIX.

Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2012-05-29 11:38:07 +02:00
Eduardo Habkost e2d87bff12 move CPU definitions to /usr/share/qemu/cpus-x86_64.conf (v2)
Changes v1 -> v2:
 - userconfig variable is now bool, not int

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-10 12:37:57 -05:00
Eduardo Habkost f29a56147b implement -no-user-config command-line option (v3)
Changes v2 -> v3:
 - Rebase against latest qemu.git

Changes v1 -> v2:
 - Change 'userconfig' field/variables to bool instead of int
 - Coding style change

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-10 12:37:57 -05:00
Eduardo Habkost 756557de64 move list of default config files to an array
More files will be added to the list, with additional attributes, later.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-10 12:37:56 -05:00
Eduardo Habkost c8262a4767 eliminate arch_config_name variable
Not needed anymore, as the code that uses the variable is already inside
arch_init.c.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-10 12:37:55 -05:00
Eduardo Habkost b5a8fe5e8a move code to read default config files to a separate function (v2)
Function added to arch_init.c because it depends on arch-specific
settings.

Changes v1 -> v2:
 - Move qemu_read_default_config_file() prototype to qemu-config.h

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-10 12:37:55 -05:00
Hervé Poussineau da12872a09 pcspk: initialize PC speaker if compiled in
PC speaker has been moved to target-independant code in 7109371158,
so do not depend of target to include it or not.

Cc: malc <av1474@comtv.ru>
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Herv? Poussineau <hpoussin@reactos.org>
Signed-off-by: malc <av1474@comtv.ru>
2012-04-15 08:56:58 +04:00
Luiz Capitulino 539de1246d Purge migration of (almost) everything to do with monitors
The Monitor object is passed back and forth within the migration/savevm
code so that it can print errors and progress to the user.

However, that approach assumes a HMP monitor, being completely invalid
in QMP.

This commit drops almost every single usage of the Monitor object, all
monitor_printf() calls have been converted into DPRINTF() ones.

There are a few remaining Monitor objects, those are going to be dropped
by the next commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-03-15 10:39:52 -03:00
Jan Kiszka 302fe51b59 pcspk: Convert to qdev
Convert the PC speaker device to a qdev ISA model. Move the public
interface to a dedicated header file at this chance.

CC: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-17 09:58:22 -06:00
Blue Swirl cd7a45c95e memory: change dirty getting API to take a size
Instead of each device knowing or guessing the guest page size,
just pass the desired size of dirtied memory area.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-02-04 12:45:10 +00:00
Blue Swirl fd4aa97903 memory: change dirty setting APIs to take a size
Instead of each target knowing or guessing the guest page size,
just pass the desired size of dirtied memory area.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-01-25 18:32:47 +00:00
Paolo Bonzini 8600361542 vectorize is_dup_page
is_dup_page is already proceeding in 32-bit chunks.  Changing it
to 16 bytes using Altivec or SSE is easy.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-13 10:21:02 -06:00
Avi Kivity 8f77558f22 memory: obsolete cpu_physical_memory_[gs]et_dirty_tracking()
The getter is no longer used, so it is completely removed.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04 13:34:49 +02:00
Avi Kivity dc94a7ed61 Convert ram_load() to the memory API
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04 13:34:48 +02:00
Avi Kivity f09f2189d5 Remove support for version 3 ram_load
Version 3 ram_load depends on ram_addrs, which are not stable.  Version 4
was introduced in 0.13 (and RHEL 6), so this means live migration from 0.12
and earlier to 1.1 or later will not work.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04 13:34:48 +02:00
Avi Kivity 8fec98b41b Sort RAMBlocks by ID for migration, not by ram_addr
ram_addr is (a) unstable (b) going away.  Sort by idstr instead.

Commit b2e0a138e initially introduced the sorting for the purpose
of improving debuggability.  After this patch, the order is still
stable, but perhaps less usable by a human.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04 13:34:48 +02:00
Avi Kivity 71c510e26e Switch ram_save to the memory API
Avoid using ram_addr_t, instead use (MemoryRegion *, offset) pairs.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04 13:34:48 +02:00
Anthony Liguori f3c6a169a3 Merge remote-tracking branch 'qemu-kvm/memory/page_desc' into staging
* qemu-kvm/memory/page_desc: (22 commits)
  Remove cpu_get_physical_page_desc()
  sparc: avoid cpu_get_physical_page_desc()
  virtio-balloon: avoid cpu_get_physical_page_desc()
  vhost: avoid cpu_get_physical_page_desc()
  kvm: avoid cpu_get_physical_page_desc()
  memory: remove CPUPhysMemoryClient
  xen: convert to MemoryListener API
  memory: temporarily add memory_region_get_ram_addr()
  xen, vga: add API for registering the framebuffer
  vhost: convert to MemoryListener API
  kvm: convert to MemoryListener API
  kvm: switch kvm slots to use host virtual address instead of ram_addr_t
  memory: add API for observing updates to the physical memory map
  memory: replace cpu_physical_sync_dirty_bitmap() with a memory API
  framebuffer: drop use of cpu_physical_sync_dirty_bitmap()
  loader: remove calls to cpu_get_physical_page_desc()
  framebuffer: drop use of cpu_get_physical_page_desc()
  memory: introduce memory_region_find()
  memory: add memory_region_is_logging()
  memory: add memory_region_is_rom()
  ...
2012-01-03 14:39:05 -06:00
Hervé Poussineau 4a0f031d5b audio: remove unused parameter isa_pic
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-20 15:44:31 -06:00
Hervé Poussineau 48a18b3c69 isa: give ISABus/ISADevice to isa_create(), isa_bus_irqs() and isa_get_irq() functions
NULL is a valid bus/device, so there is no change in behaviour.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-20 15:44:30 -06:00
Avi Kivity 86e775c654 memory: replace cpu_physical_sync_dirty_bitmap() with a memory API
The function is still used as the implementation.

Signed-off-by: Avi Kivity <avi@redhat.com>
2011-12-20 14:14:07 +02:00
Juan Quintela 2975725f6b migration: make *save_live return errors
Make *save_live() return negative values when there is one error, and
updates all callers to check for the error.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20 13:23:52 +02:00
Juan Quintela 42802d47dd migration: use qemu_file_get_error() return value when possible
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20 13:23:52 +02:00
Juan Quintela 624b9cc209 migration: rename qemu_file_has_error to qemu_file_get_error
Now the function returned errno, so it is better the new name.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20 13:23:52 +02:00
Juan Quintela dcd1d224df migration: change has_error to contain errno values
We normally already have an errno value.  When not, abuse EIO.

Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20 13:23:52 +02:00
Frediano Ziglio 74e26c179e core: remove qemu_service_io
qemu_service_io was mainly an alias to qemu_notify_event,
currently used only by PPC for timer hack, so call
qemu_notify_event directly.

Signed-off-by: Frediano Ziglio <freddy77@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23 10:55:32 -05:00
Max Filippov 2328826b1d target-xtensa: add target stubs
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-09-10 16:57:36 +00:00
Anthony Liguori 7267c0947d Use glib memory allocation and free functions
qemu_malloc/qemu_free no longer exist after this commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-20 23:01:08 -05:00
Anthony PERARD 303d4e865b Introduce -machine command option.
This option gives the ability to switch one "accelerator" like kvm, xen
or the default one tcg. We can specify more than one accelerator by
separate them by a colon. QEMU will try each one and use the first whose
works.

So,
./qemu -machine accel=xen:kvm:tcg

which would try Xen support first, then KVM and finally TCG if none of
the other works.

By default, QEMU will use TCG. But we can specify another default in the
global configuration file.

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-05-08 10:09:59 +02:00
Michael Walle 81ea0e1304 LatticeMico32 target support
This patch adds support for the LatticeMico32 softcore processor by Lattice
Semiconductor.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-07 13:42:36 +01:00
Isaku Yamahata 0dfa5ef90d audio: consolidate audio_init()
consolidate audio_init() and remove references to shoundhw.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-25 09:18:00 +01:00