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2010-12-22build, pci: remove QMP dependency on core PCI codeIsaku Yamahata
by introducing pci-stub.c, eliminate QMP dependency on core PCI code rquired by query-pci command. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-22pcie: add flr supportIsaku Yamahata
Support flr: trigger device reset on flr config write. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-22pc/piix: fix mismerge of b1aeb92666d2fde413c34578b3b42bbfe5f2a506Isaku Yamahata
The change set of b1aeb92666d2fde413c34578b3b42bbfe5f2a506 in pci branch was mismerged. The compatibility should be kept for 0.13, not for 0.14. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-21qdev: remove an unused functionMichael S. Tsirkin
qbus_reset_all is unused, remove it Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-20qbus: register reset handler for qbus whose parent is NULLIsaku Yamahata
Stefan Weil reported the regression caused by ec990eb622ad46df5ddcb1e94c418c271894d416 as follows > The second regression also occurs with MIPS malta. > Networking no longer works with the default pcnet nic. > > This is caused because the reset function for pcnet is no > longer called during system boot. The result in an invalid > mac address (all zero) and a non-working nic. > > For this second regression I still have no simple solution. > Of course mips_malta.c should be converted to qdev which > would fix both problems (but only for malta system emulation). The issue is, it is assumed that all qbuses, qdeves are under main_system_bus. But there are qbuses whose parent is NULL. So it is necessary to trigger reset for those qbuses. (On the other hand, if NULL is passed to qdev_create(), its parent bus is main_system_bus.) Ideally those buses should be moved under bus controller device which is qdev. But it's not done yet. So register qbus reset handler for qbus whose parent is NULL. Reported-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: "Michael S. Tsirkin" <mst@redhat.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-19qdev: sysbus_get_default must not return a NULL pointer (fix regression)Stefan Weil
Every system should have some sort of main system bus, so sysbus_get_default should always return a valid bus. Without this patch, at least mipssim and malta no longer start but raise a null pointer access exception (caused by commit ec990eb622ad46df5ddcb1e94c418c271894d416). Cc: Anthony Liguori <anthony@codemonkey.ws> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-12-19pci: don't use bus number in migration, stub outMichael S. Tsirkin
Using bus numbers in migration is clearly wrong as they are guest assigned. Not really sure what the right thing to do is, for now stick 0 in there so things keep working for non-nested setups, add a TODO. We also probably have to mark nested bridges as non-migrateable until this is fixed? Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Alex Williamson <alex.williamson@redhat.com>
2010-12-19ahci: delete write-only variables (v2)Blue Swirl
Avoid these warnings with GCC 4.6.0: /src/qemu/hw/ide/ahci.c: In function 'ahci_reset_port': /src/qemu/hw/ide/ahci.c:810:14: error: variable 'tfd' set but not used [-Werror=unused-but-set-variable] /src/qemu/hw/ide/ahci.c: In function 'handle_cmd': /src/qemu/hw/ide/ahci.c:1103:19: error: variable 'pr' set but not used [-Werror=unused-but-set-variable] In the tfd variable case, fix the logic also. CC: Alexander Graf <agraf@suse.de> CC: Kevin Wolf <kwolf@redhat.com> Acked-by: Alexander Graf <agraf@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-19vga: Declare as little endianBlue Swirl
This patch replaces explicit bswaps with endianness hints to the mmio layer. CC: Alexander Graf <agraf@suse.de> Acked-by: Alexander Graf <agraf@suse.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-18win32: Fix CRLF problem in make_device_config.shStefan Weil
QEMU source code with CRLF line endings which is quite common on windows hosts fails with current make_device_config.sh. The awk script gets the name of the included file with \r, so instead of pci.mak it will search for pci.mak\r which of course does not work. Fix this by removing any \r. v2: Avoid using sub() and \r with awk because they are unsupported on some platforms. Use tr to remove \r. This new solution improves portability and was suggested by Paolo Bonzini. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Acked-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-18sparc32: ledma extra registersBob Breuer
ledma has 0x20 bytes of registers according to OBP, and at least Solaris9 reads the 5th register which is beyond what we've mapped. So let's setup a flag (inspired by a previous patch from Blue Swirl) to identify ledma from espdma, and map another 16 bytes of registers which return 0. Signed-off-by: Bob Breuer <breuerr@mc.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-17Fix warning on mingw32Blue Swirl
Avoid this warning like other uses of setsockopt: /src/qemu/net/socket.c: In function 'net_socket_mcast_create': /src/qemu/net/socket.c:210: warning: passing argument 4 of 'setsockopt' from incompatible pointer type Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-12-17ide: Build fix for via.cKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ide: Fix build for cmd646.cKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Andreas Färber <andreas.faerber@web.de>
2010-12-17docs: Fix missing carets in QED specificationStefan Hajnoczi
For some reason the carets ('^') in the QED specification disappeared. This patch puts them back. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17Add proper -errno error return values to qcow2_open()Jes Sorensen
In addition this adds missing braces to the function to be consistent with the coding style. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17block/qcow2.c: rename qcow_ functions to qcow2_Jes Sorensen
It doesn't really make sense for functions in qcow2.c to be named qcow_ so convert the names to match correctly. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qed: Consistency check supportStefan Hajnoczi
This patch adds support for the qemu-img check command. It also introduces a dirty bit in the qed header to mark modified images as needing a check. This bit is cleared when the image file is closed cleanly. If an image file is opened and it has the dirty bit set, a consistency check will run and try to fix corrupted table offsets. These corruptions may occur if there is power loss while an allocating write is performed. Once the image is fixed it opens as normal again. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qed: Read/write supportStefan Hajnoczi
This patch implements the read/write state machine. Operations are fully asynchronous and multiple operations may be active at any time. Allocating writes lock tables to ensure metadata updates do not interfere with each other. If two allocating writes need to update the same L2 table they will run sequentially. If two allocating writes need to update different L2 tables they will run in parallel. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qed: Table, L2 cache, and cluster functionsStefan Hajnoczi
This patch adds code to look up data cluster offsets in the image via the L1/L2 tables. The L2 tables are writethrough cached in memory for performance (each read/write requires a lookup so it is essential to cache the tables). With cluster lookup code in place it is possible to implement bdrv_is_allocated() to query the number of contiguous allocated/unallocated clusters. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qed: Add QEMU Enhanced Disk image formatStefan Hajnoczi
This patch introduces the qed on-disk layout and implements image creation. Later patches add read/write and other functionality. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17docs: Add QED image format specificationStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qemu-io: Fix typo in help textsKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17raw-posix: add discard supportChristoph Hellwig
Add support to discard blocks in a raw image residing on an XFS filesystem by calling the XFS_IOC_UNRESVSP64 ioctl to punch holes. Support for other hole punching mechanisms can be added when they become available. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qemu-io: Add discard commandStefan Hajnoczi
discard [-Cq] off len -- discards a number of bytes at a specified offset discards a range of bytes from the given offset Example: 'discard 512 1k' - discards 1 kilobyte from 512 bytes into the file Discards a segment of the currently open file. -C, -- report statistics in a machine parsable format -q, -- quite mode, do not show I/O statistics Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17scsi-disk: support WRITE SAME (16) with unmap bitChristoph Hellwig
Support discards via the WRITE SAME command with the unmap bit set, and tell the initiator about the support for it via the block limit and the new thin provisioning EVPD pages. Also fix the comment which incorrectly describedthe block limits EVPD page. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17block: add discard supportChristoph Hellwig
Add a new bdrv_discard method to free blocks in a mapping image, and a new drive property to set the granularity for these discard. If no discard granularity support is set discard support is disabled. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ide: Register vm change state handler once onlyStefan Hajnoczi
We register the vm change state handler in a PCI BAR map() function. This function can be called multiple times throughout the lifetime of a PCI IDE device. This results in duplicate vm change state handlers being register, none of which are ever unregistered. Instead, register the vm change state handler in the device's init function once and for all. piix tested, cmd646 and via not tested. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17Remove NULL checks for bdrv_new return valueKevin Wolf
It's an indirect call to qemu_malloc, which never returns an error. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qemu.img.c: Use error_report() instead of own error() implementationJes Sorensen
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17bdrv_img_create() use proper errno return valuesJes Sorensen
Kevin suggested to have bdrv_img_create() return proper -errno values on error. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17Prevent creating an image with the same filename as backing fileJes Sorensen
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17Introduce do_snapshot_blkdev() and monitor command to handle it.Jes Sorensen
The monitor command is: snapshot_blkdev <device> [snapshot-file] [format] Default format is qcow2. For now snapshots without a snapshot-file, eg internal snapshots, are not supported. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qemu-img.c: Re-factor img_create()Jes Sorensen
This patch re-factors img_create() moving the code doing the actual work into block.c where it can be shared with QEMU. This is needed to be able to create images from QEMU to be used for live snapshots. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qemu-img: Call error_set_prognameKevin Wolf
Call error_set_progname during the qemu-img initialization, so that error messages printed with error_report() use the right prefix. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ide: honor ncq for atapiAlexander Graf
ATAPI also can do ncq, so let's expose the capability. This patch makes CD-ROM support work on Windows 7 for me. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ahci: set SATA Mode SelectSebastian Herbszt
Set SATA Mode Select to AHCI in the Address Map Register. Signed-off-by: Sebastian Herbszt <herbszt@gmx.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17config: add ahci for pci capable machinesAlexander Graf
This patch enables AHCI for all machines supporting PCI. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17config: move ide core and pci to pci.makAlexander Graf
Every device that can do PCI should also be able to do IDE. So let's move the IDE definitions over to pci.mak. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ahci: add ahci emulationAlexander Graf
This patch adds an emulation layer for an ICH-9 AHCI controller. For now this controller does not do IDE legacy emulation. It is a pure AHCI controller. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17pci: add ich9 pci idAlexander Graf
We need a PCI ID for our new AHCI adapter. I just picked an ICH-9 because that's the one in the Q35 chipset. This patch adds a PCI ID define for an ICH-9 AHCI adapter. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17pci: add storage class for sataAlexander Graf
This patch adds the storage sata class id. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ide: add ncq identify data for ahci sata drivesRoland Elek
I modified ide_identify() to include the zero-based queue length value in word 75, and set bit 8 in word 76 to signal NCQ support in the identify data for AHCI SATA drives. Signed-off-by: Roland Elek <elek.roland@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ide: move transfer_start after variable modificationAlexander Graf
We hook into transfer_start and immediately call the end function for ahci. This means that everything needs to be in place for the end function when we start the transfer, so let's move the function down to where all state is in place. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ide: Split out BMDMA code from ATA coreAlexander Graf
The ATA core is currently heavily intertwined with BMDMA code. Let's loosen that a bit, so we can happily replace the DMA backend with different implementations. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ide: fix whitespace gap in ide_exec_cmdAlexander Graf
Now that we have the function split out, we have to reindent it. In order to increase the readability of the actual functional change, this is split out. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17ide: split ide command interpretation offAlexander Graf
The ATA command interpretation code can be used for PATA and SATA interfaces alike. So let's split it out into a separate function. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17qemu-img.c: Clean up handling of image size in img_create()Jes Sorensen
This cleans up the handling of image size in img_create() by parsing the value early, and then only setting it once if a value has been added as the last argument to the command line. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17Introduce strtosz_suffix()Jes Sorensen
This introduces strtosz_suffix() which allows the caller to specify a default suffix in case the non default of MB is wanted. strtosz() is kept as a wrapper for strtosz_suffix() which keeps it's current default of MB. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-17block: Fix the use of protocols in backing filesStefan Hajnoczi
Backing filenames may contain a protocol. The code currently doesn't consider this case and produces filenames that embed "<protocol>:". Don't combine filenames if the backing filename contains a protocol. Based on an earlier patch by Anthony Liguori <aliguori@us.ibm.com>. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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