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2009-11-17Block live migrationlirans@il.ibm.com
This patch introduces block migration called during live migration. Block are being copied to the destination in an async way. First the code will transfer the whole disk and then transfer all dirty blocks accumulted during the migration. Still need to improve transition from the iterative phase of migration to the end phase. For now transition will take place when all blocks transfered once, all the dirty blocks will be transfered during the end phase (guest is suspended). Changes from v4: - Global variabels moved to a global state structure allocated dynamically. - Minor coding style issues. - Poll block.c for tracking of dirty blocks instead of manage it here. Signed-off-by: Liran Schour <lirans@il.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-17Expose a mechanism to trace block writeslirans@il.ibm.com
To support live migration without shared storage we need to be able to trace writes to disk while migrating. This Patch expose dirty block tracking per device to be polled from upper layer. Changes from v4: - Register dirty tracking for each block device. - Minor coding style issues. - Block.c will now manage a dirty bitmap per device once bdrv_set_dirty_tracking() is called. Bitmap is polled by the upper layer (block-migration.c). Signed-off-by: Liran Schour <lirans@il.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-17char: rename qemu_chr_reset to qemu_chr_generic_openAmit Shah
This function sends out the OPENED event to backends that have drive the chardevs. The 'reset' is now a historical artifact and we can now just call the function for what it is. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-17char: Remove special init_reset handlingAmit Shah
The initial_reset sent to chardevs doesn't do much other than setting a bool to true. Char devices are interested in the open event and that gets sent whenever the device is opened. Moreover, the reset logic breaks as and when qemu's bh scheduling changes. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-17char: don't limit data sent to backends to 1k per bufferAmit Shah
chardevs have a 'can_read' function via which backends specify the amount of data they can receive. When can_read returns > 0, apps can start sending data. However, each chardev driver here allows a max. of 1k bytes inspite of the backend being able to receive more. The best we can do here is to allocate s->max_size bytes from the heap on each call (which is the number returned by the backend from the can_read call). This is an intermediate step to bump up the bytes written in each call to 4k. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-16ARM PB-A8 supportPaul Brook
Add ARM Realview PB-A8 board support. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-11-16LAN9118 emulationPaul Brook
Add SMSC LAN9118 ethernet emulation. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-11-15mips_r4k: fix resetAurelien Jarno
(broken by 45a50b1668822c23afc2a89f724654e176518bc4) Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-15PPC64: map Uni-North AGP bus aka fix Linux bootBlue Swirl
Uni-North AGP device mapping was accidentally dropped in 2e29bd04786003561303dcad940b38afe790fb9b. Map the device. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-11-15PPC64: Partial fix to Linux crash: revert to old devfnBlue Swirl
Before 2e29bd04786003561303dcad940b38afe790fb9b, Uni-North host and AGP bridge were using the same devfn, 11 << 3. The net effect was that only AGP bridge was visible. This was changed in the commit to 13 << 3 for AGP. Some of the later crashes happened due to NULL pointer dereferences generated by 07b7d05377a5e2b242ef0cce3d461d3284700fc0 and insufficient return value checks. Disable host device and revert AGP to 11 << 3. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-11-15PCI: make duplicate devfn allocation fatalBlue Swirl
Only two callers of pci_create_simple/pci_register_device bothered to check the return value. Other cases were prone to crashing with spurious NULL pointer dereferences. Make QEMU exit with an error message when devfn is attempted to be duplicated, also applies to case when the bus is full. Remove checks. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-11-14Do not execute shell scripts directlymalc
Signed-off-by: malc <av1474@comtv.ru>
2009-11-14mips malta: fix indentationAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-14target-mips: fix indentationAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-14mips-malta: fix resetAurelien Jarno
(broken by 45a50b1668822c23afc2a89f724654e176518bc4) Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-14mips: fix cpu_reset memory leakBlue Swirl
Remove cpu_mips_register() - move mmu_init(), fpu_init() and mvp_init() into cpu_mips_init() - move the other parts in cpu_mips_init() Reported-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-14fix make clean targetsMagnus Damm
This patch fixes clean in case of missing directories and also adds code to distclean that removes the following files: qemu-monitor.texi roms/seabios/config.mak roms/vgabios/config.mak Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-14sh4 disasm fixesMagnus Damm
Add the sh4 target to the monitor disassembly function, and remove a duplicate "0x" printout from the sh4 dis- assembly code. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-14tcg/i386: remove duplicate sar opcodeMagnus Damm
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-14pci: Fix function pci_default_write_configStefan Weil
Change 260c0cd3d985e51b15870ff47e17b7b930efbda1 (pci: use range helper functions) introduced a bug which made pci cirrus vga on mips malta (and maybe other pci devices) fail. Don't change addr - its original value is needed by ranges_overlap() and range_covers(). Signed-off-by: Stefan Weil <weil@mail.berlios.de> Acked-by: Ryan Harper <ryanh@us.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-14mips: fix CPU resetAurelien Jarno
Don't load the kernel twice during reset. See f2d74978764f62d832d61ac17bb5d934ade58816. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-13Fix PPC crashBlue Swirl
Because of a typo, structure field vga_bios_size was not initialized properly and a bogus BAR6 for the nonexistent VGA BIOS appeared. The bug was uncovered by c169998802505c244b8bcad562633f29de7d74a4. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-11-13ARM MPCore tweaksPaul Brook
Allow the user to specify the number of cores present on the RealView EB + ARM11MPCore board. Also split into its own config rather than guessing from the CPU name. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-11-13Realview/EB procid hacksPaul Brook
Guess core tile ID based on CPU type. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-11-12pci: fix the conversion of config field from array to pointerJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12qemu_system_reset: we need to call it before loadvm/migrationJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12fdc: fix vmstate variable passedJuan Quintela
When code was transformed to use qdev_reset/vmstate registration, vmstate was passed a variable of the wrong type Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12vnc: improve capslock handling.Gerd Hoffmann
When capslock is toggled while the vnc window hasn't the focus qemu will miss the state change. Add sanity checks for the capslock state and toggle it if needed, so hosts and guests idea of capslock state stay in sync. Simliar logic for numlock is present in qemu already. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12e1000 fix: read access to some registers is missing.Kay Ackermann
While writing working on an e1000 driver for my university's OS I noticed that some registers aren't readable in QEMU, but they should be readable as stated in Intels Driver Developer Manual (and also verified on real hardware). Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12Fix 32-bit overflow in parallels image supportDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12kvm ppc: Remove unused labelHollis Blanchard
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12kvm: Move KVM mp_state accessors to i386-specific codeHollis Blanchard
Unbreaks PowerPC and S390 KVM builds. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12virtio-blk: Pass read errors to the guestKevin Wolf
We need to signal not only write errors, but also read errors to the guest driver. This fixes a regression introduced by 869a5c6d. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12savevm: Delete existing snapshots in all imagesKevin Wolf
When creating a snapshot we can run into the situation that the first disk doesn't have a snapshot, but the second one does have one with the same name as the new snapshot. In this case, qemu doesn't recognize that there is a snapshot to be overwritten, so it starts to save the new snapshot and errors out later when it tries to snapshot the second image. With this patch, snapshots on secondary images are overwritten just like on the first image. Reported-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12Fix incoming migrationJuan Quintela
commit b04c4134d6de28c249277de19e523bfbe4aebbd6 broke incoming migration. After talking with Gleb, code was intended to be the way is in this fix. This fixes migration here. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12fix type in CFLAGS nameJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12fix parallel buildJuan Quintela
Based on a ideas of Daniel Jacobowitz + Stefan Weil Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12qdev: Check if unplug handler exists before calling itAmit Shah
A bus may have hotplugging enabled but not have the 'unplug' callback defined, which would lead to a crash on trying to unplug a device on the bus. Fix by introducing an assert to check if the callback is valid. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12Makefile: Fix definition of pxe-*.bin blobsStefan Weil
* Remove 2nd entry for pxe-pcnet.bin. This kind of error can be avoided by sorting entries. So all pxe-*.bin entries are now sorted alphabetically. * Rename pxe-eepro100.bin -> pxe-i82559er.bin. This change completes another patch which did the rename on the pxe image for i82559er. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12eepro100: Add missing .exit initialisationStefan Weil
Some devices did not have an initialisation value for entry ".exit". This is fixed here. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12eepro100: Fix boot ROM supportStefan Weil
* Rename pxe-eepro100.bin to pxe-i82559er.bin. The other devices supported by eepro100.c need additional pxe boot ROM images. * Call rom_add_option during initialisation. The code won't work with two or more different eepro100 devices, because it only adds one option ROM, but this use case is perhaps never needed. Using this patch, model=i82559er at least works partially. For full support, more eepro100 patches are needed (will follow later, can be fetched from ar7 branch of QEMU). Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12Makefile: Prettify loggingStefan Weil
Replace GEN config-all-devices.mak by GEN config-all-devices.mak Like this, the logging output is column aligned. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12serial: Add interface to set reference oscillator frequencyStefan Weil
Many (most?) serial interfaces have a programmable clock which provides the reference frequency ("baudbase"). So a fixed baudbase which is only set once can be wrong. omap1.c is an example which could use the new interface to change baudbase when the programmable clock changes. ar7 system emulation (still not part of standard QEMU) is similar to omap and already uses serial_set_frequency. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-12microblaze: Move the kcmdline out of the way.Edgar E. Iglesias
Avoids rom overlap conflicts. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-11-12microblaze: Restore env when raising unmapped bus access.Edgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-11-12microblaze: Unbreak reset.Edgar E. Iglesias
Initialize synthesis config registers at reset to cope with the new cpu_reset sequences. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-11-11Fix ARM MCore secondary cpu bootPaul Brook
Make MPCore secondary cpu initialization work with the new reset handling. Also change the inital FLAG value from 3 to zero to match recent kenrels. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-11-11Reject late rom loadingPaul Brook
rom_+add_file/rom_add_blob only work correctly if called before load_all_roms. Enforce this rather than silently accepting and putting the rom in the wrong place at reset. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-11-11Fix ARM system emulationPaul Brook
Since 45a50b1 load_image_targphys should only be called once. ARM boards incorrectly call it every time the system is reset. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-11-09QemuOpts: command line switches for the config file.Gerd Hoffmann
Adds -readconfig and -writeconfig command line switches to read/write QemuOpts from config file. In theory you should be able to do: qemu < machine config cmd line switches here > -writeconfig vm.cfg qemu -readconfig vm.cfg In practice it will not work. Not all command line switches are converted to QemuOpts, so you'll have to keep the not-yet converted ones on the second line. Also there might be bugs lurking which prevent even the converted ones from working correctly. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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