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2012-06-29Maintain the number of dirty pagesJuan Quintela
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>
2012-06-29Exit loop if we have been there too longJuan Quintela
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>
2012-06-29Only calculate expected_time for stage 2Juan Quintela
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>
2012-06-29Add migration_end functionOrit Wasserman
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
2012-06-29Add debugging infrastructureOrit Wasserman
Signed-off-by: Orit Wasserman <owasserm@redhat.com>
2012-06-29Add save_block_hdr functionOrit Wasserman
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>
2012-06-29Add missing check for host_from_stream_offset return value for ↵Orit Wasserman
RAM_SAVE_FLAG_PAGE Signed-off-by: Orit Wasserman <owasserm@redhat.com>
2012-05-29arch_init: Fix AltiVec build on Darwin/ppcAndreas Färber
Commit f29a56147b66845914d0a645bf9b4c5bb9a6af57 (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>
2012-05-10move CPU definitions to /usr/share/qemu/cpus-x86_64.conf (v2)Eduardo Habkost
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>
2012-05-10implement -no-user-config command-line option (v3)Eduardo Habkost
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>
2012-05-10move list of default config files to an arrayEduardo Habkost
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>
2012-05-10eliminate arch_config_name variableEduardo Habkost
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>
2012-05-10move code to read default config files to a separate function (v2)Eduardo Habkost
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>
2012-04-15pcspk: initialize PC speaker if compiled inHervé Poussineau
PC speaker has been moved to target-independant code in 71093711589dafcb920dc3bc9bb811eaf8b14101, 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>
2012-03-15Purge migration of (almost) everything to do with monitorsLuiz Capitulino
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>
2012-02-17pcspk: Convert to qdevJan Kiszka
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>
2012-02-04memory: change dirty getting API to take a sizeBlue Swirl
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>
2012-01-25memory: change dirty setting APIs to take a sizeBlue Swirl
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>
2012-01-13vectorize is_dup_pagePaolo Bonzini
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>
2012-01-04memory: obsolete cpu_physical_memory_[gs]et_dirty_tracking()Avi Kivity
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>
2012-01-04Convert ram_load() to the memory APIAvi Kivity
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2012-01-04Remove support for version 3 ram_loadAvi Kivity
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>
2012-01-04Sort RAMBlocks by ID for migration, not by ram_addrAvi Kivity
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>
2012-01-04Switch ram_save to the memory APIAvi Kivity
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>
2012-01-03Merge remote-tracking branch 'qemu-kvm/memory/page_desc' into stagingAnthony Liguori
* 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() ...
2011-12-20audio: remove unused parameter isa_picHervé Poussineau
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-20isa: give ISABus/ISADevice to isa_create(), isa_bus_irqs() and isa_get_irq() ↵Hervé Poussineau
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>
2011-12-20memory: replace cpu_physical_sync_dirty_bitmap() with a memory APIAvi Kivity
The function is still used as the implementation. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-20migration: make *save_live return errorsJuan Quintela
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>
2011-10-20migration: use qemu_file_get_error() return value when possibleJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: rename qemu_file_has_error to qemu_file_get_errorJuan Quintela
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>
2011-10-20migration: change has_error to contain errno valuesJuan Quintela
We normally already have an errno value. When not, abuse EIO. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-09-23core: remove qemu_service_ioFrediano Ziglio
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>
2011-09-10target-xtensa: add target stubsMax Filippov
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-05-08Introduce -machine command option.Anthony PERARD
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>
2011-03-07LatticeMico32 target supportMichael Walle
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>
2011-01-25audio: consolidate audio_init()Isaku Yamahata
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>
2010-12-02migration: stable ram block orderingMichael S. Tsirkin
This makes ram block ordering under migration stable, ordered by offset. This is especially useful for migration to exec, for debugging. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Jason Wang <jasowang@redhat.com>
2010-11-01Merge remote branch 'mst/for_anthony' into stagingAnthony Liguori
2010-11-01Add Intel HD Audio support to qemu.Gerd Hoffmann
This patch adds three devices to qemu: intel-hda Intel HD Audio Controller, the PCI device. Provides a HDA bus. Emulates ICH6 at the moment. Adding a ICH9 PCIE variant shouldn't be hard. hda-duplex HDA Codec. Attaches to the HDA bus. Supports 16bit stereo, rates 16k -> 96k, playback, recording and volume control (with CONFIG_MIXEMU=y). hda-output HDA Codec without recording support. Subset of the hda-duplex codec. Use this if you don't want your guests access your mic. Usage: add '-device intel-hda -device hda-duplex' to your command line. Tested guests: * Linux works. * Win7 works. * DOS (mpxplay) works. * WinXP doesn't work. [ v2 changes ] * Fixed endianess, big endian hosts work now. * Fixed some emulation bugs. * Added immediate command emulation. * Added vmstate support. * Make it behave like all other sound card drivers: - can be configured via '--audio-card-list=hda' - can be added to a VM using '-soundhw hda' * Code style fixups. * Zapped guest-triggerable asserts. * Handle partial reads/writes of audio data correctly. Cc: malc <av1474@comtv.ru> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: malc <av1474@comtv.ru>
2010-10-27migration: don't segfault on invalid inputMichael S. Tsirkin
host_from_stream_offset returns NULL on error, return error instead of trying to use that address, to avoid segfault on invalid stream. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-09-25Introduce qemu_madvise()Andreas Färber
vl.c has a Sun-specific hack to supply a prototype for madvise(), but the call site has apparently moved to arch_init.c. Haiku doesn't implement madvise() in favor of posix_madvise(). OpenBSD and Solaris 10 don't implement posix_madvise() but madvise(). MinGW implements neither. Check for madvise() and posix_madvise() in configure and supply qemu_madvise() as wrapper. Prefer madvise() over posix_madvise() due to flag availability. Convert all callers to use qemu_madvise() and QEMU_MADV_*. Note that on Solaris the warning is fixed by moving the madvise() prototype, not by qemu_madvise() itself. It helps with porting though, and it simplifies most call sites. v7 -> v8: * Some versions of MinGW have no sys/mman.h header. Reported by Blue Swirl. v6 -> v7: * Adopt madvise() rather than posix_madvise() semantics for returning errors. * Use EINVAL in place of ENOTSUP. v5 -> v6: * Replace two leftover instances of POSIX_MADV_NORMAL with QEMU_MADV_INVALID. Spotted by Blue Swirl. v4 -> v5: * Introduce QEMU_MADV_INVALID, suggested by Alexander Graf. Note that this relies on -1 not being a valid advice value. v3 -> v4: * Eliminate #ifdefs at qemu_advise() call sites. Requested by Blue Swirl. This will currently break the check in kvm-all.c by calling madvise() with a supported flag, which will not fail. Ideas/patches welcome. v2 -> v3: * Reuse the *_MADV_* defines for QEMU_MADV_*. Suggested by Alexander Graf. * Add configure check for madvise(), too. Add defines to Makefile, not QEMU_CFLAGS. Convert all callers, untested. Suggested by Blue Swirl. * Keep Solaris' madvise() prototype around. Pointed out by Alexander Graf. * Display configure check results. v1 -> v2: * Don't rely on posix_madvise() availability, add qemu_madvise(). Suggested by Blue Swirl. Signed-off-by: Andreas Färber <afaerber@opensolaris.org> Cc: Blue Swirl <blauwirbel@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-08-22arch_init: replace tabs by spaces.Yoshiaki Tamura
Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-08-19savevm: Reset last block info at beginning of each saveAlex Williamson
If we save more than once we need to reset the last block info or else only the first save has the actual block info and each subsequent save will only use continue flags, making them unloadable independently. Found-by: Miguel Di Ciurcio Filho <miguel.filho@gmail.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-06ramblocks: No more being lazy about duplicate namesAlex Williamson
Now that we have a working qemu_ram_free() and the primary runtime user of it has been updated, don't be lenient about duplicate id strings. We also shouldn't need to create them ondemand at the target. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-06savevm: Create a new continue flag to avoid resending block nameAlex Williamson
Allows us to compress the protocol a bit by setting a flag on the offset which indicates we're still working within the same block as last time. That way we can avoid sending the block name for every page. Suggested by Anthony Liguori. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-06savevm: Use RAM blocks for basis of migrationAlex Williamson
We don't want to assume a contiguous address space, so migrate based on RAM blocks instead of a fixed linear address map. This will allow us to have holes in the ram_addr_t namespace, so we can implement qemu_ram_free(). Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-06savevm: Migrate RAM based on name/offsetAlex Williamson
Synchronize RAM blocks with the target and migrate using name/offset pairs. This ensures both source and target have the same view of RAM and that we get the right bits into the right slot. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-06Remove uses of ram.last_offset (aka last_ram_offset)Alex Williamson
We currently need this either to allocate the next ram_addr_t for a new block, or for total memory to be migrated. Both of which we can calculate without need of this to keep us in a contiguous address space. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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