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2013-06-27rdma: introduce qemu_update_position()Michael R. Hines
RDMA writes happen asynchronously, and thus the performance accounting also needs to be able to occur asynchronously. This allows anybody to call into savevm.c to update both f->pos as well as into arch_init.c to update the acct_info structure with up-to-date values when the RDMA transfer actually completes. Reviewed-by: Juan Quintela <quintela@redhat.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27rdma: add documentationMichael R. Hines
docs/rdma.txt contains full documentation, wiki links, github url and contact information. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27migration: do not overwrite zero pagesPeter Lieven
on incoming migration do not memset pages to zero if they already read as zero. this will allocate a new zero page and consume memory unnecessarily. even if we madvise a MADV_DONTNEED later this will only deallocate the memory asynchronously. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27Revert "migration: do not sent zero pages in bulk stage"Peter Lieven
Not sending zero pages breaks migration if a page is zero at the source but not at the destination. This can e.g. happen if different BIOS versions are used at source and destination. It has also been reported that migration on pseries is completely broken with this patch. This effectively reverts commit f1c72795af573b24a7da5eb52375c9aba8a37972. Conflicts: arch_init.c Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27arch_init/ram_load: add error message for block length mismatchAlon Levy
Makes it easier to debug situations where the source and target have different ram blocks in a device and migration fails due to that, for instance a BAR size change on a PCI device. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-25Merge remote-tracking branch 'pmaydell/arm-devs.for-upstream' into stagingAnthony Liguori
# By Peter Crosthwaite (3) and others # Via Peter Maydell * pmaydell/arm-devs.for-upstream: nand: Don't inherit from Sysbus block/nand: Convert Sysbus::init to Device::realize block/nand: QOM casting sweep i.MX31: Fix PRCS bit test arm/boot: Free dtb blob memory after use i.MX: Rework functions/types name and use new style initialization i.MX: Implement a more complete version of the GPT timer. ARM: Allow dumping of device tree Message-id: 1372184516-32397-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-25Merge remote-tracking branch 'pmaydell/target-arm.for-upstream' into stagingAnthony Liguori
# By Peter Maydell # Via Peter Maydell * pmaydell/target-arm.for-upstream: target-arm: Make LPAE feature imply V7MP target-arm: Use tuple list to sync cp regs with KVM target-arm: Reinitialize all KVM VCPU registers on reset target-arm: Initialize cpreg list from KVM when using KVM target-arm: Convert TCG to using (index,value) list for cp migration target-arm: mark up cpregs for no-migrate or raw access target-arm: Add raw_readfn and raw_writefn to ARMCPRegInfo target-arm: Allow special cpregs to have flags set Message-id: 1372181592-32170-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-25Merge remote-tracking branch 'cohuck/virtio-ccw-upstr' into stagingAnthony Liguori
# By Cornelia Huck (2) and Christian Borntraeger (1) # Via Cornelia Huck * cohuck/virtio-ccw-upstr: virtio-ccw: Wire up guest and host notifies. virtio-ccw: Wire up ioeventfd. s390/virtio-ccw: Fix virtio reset Message-id: 1372177538-9812-1-git-send-email-cornelia.huck@de.ibm.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-25Merge remote-tracking branch 'sstabellini/xen-20130625' into stagingAnthony Liguori
# By Paul Durrant (2) and Stefano Stabellini (1) # Via Stefano Stabellini * sstabellini/xen-20130625: Move hardcoded initialization of xen-platform device. Allow use of pc machine type (accel=xen) for Xen HVM domains. Revert "xen: start PCI hole at 0xe0000000 (same as pc_init1 and qemu-xen-traditional)" Message-id: alpine.DEB.2.02.1306251323220.4782@kaball.uk.xensource.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-25nand: Don't inherit from SysbusPeter Crosthwaite
Nand chips are not sysbus devices - they do not have any sense of MMIO, nor interrupts. Re-parent to TYPE_DEVICE accordingly. Cc: afaerber@suse.de Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25block/nand: Convert Sysbus::init to Device::realizePeter Crosthwaite
The prescribed transition from Sysbus::init function to a Device::realize. Cc: afaerber@suse.de Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25block/nand: QOM casting sweepPeter Crosthwaite
Define and use standard QOM cast macro. Remove usages of DO_UPCAST and direct -> style casting. Cc: afaerber@suse.de Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25i.MX31: Fix PRCS bit testStefan Weil
cppcheck detected a condition which was always false. According to the MCIMX31 Reference Manual, the PRCS bits have to be 01 to select the Frequency Pre-Multiplier (FPM). PRCS uses bits 1 and 2, so we have to test for 2. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Message-id: 1370810662-32320-1-git-send-email-sw@weilnetz.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25arm/boot: Free dtb blob memory after usePeter Maydell
The dtb blob returned by load_device_tree() is in memory allocated with g_malloc(). Free it accordingly once we have copied its contents into the guest memory. To make this easy, we need also to clean up the error handling in load_dtb() so that we consistently handle errors in the same way (by printing a message and then returning -1, rather than either plowing on or exiting immediately). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Message-id: 1371209256-11408-1-git-send-email-peter.maydell@linaro.org
2013-06-25i.MX: Rework functions/types name and use new style initializationJean-Christophe DUBOIS
* use dynamic cast whenever possible * Change function names to some more meaningful prefix * Change type names to a more meaningful one * use new style device initialization Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net> Message-id: 1369898943-1993-3-git-send-email-jcd@tribudubois.net Reviewed-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25i.MX: Implement a more complete version of the GPT timer.Jean-Christophe DUBOIS
* implement compare 1 2 and 3 registers * simplify Debug printf Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net> Message-id: 1369898943-1993-2-git-send-email-jcd@tribudubois.net Reviewed-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25ARM: Allow dumping of device treeJohn Rigby
By calling qemu_devtree_dumpdtb near the end of load_dtb. Signed-off-by: John Rigby <john.rigby@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Make LPAE feature imply V7MPPeter Maydell
The v7 ARM ARM specifies that the Large Physical Address Extension requires implementation of the Multiprocessing Extensions, so make our LPAE feature imply V7MP rather than specifying both in the A15 CPU initfn. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Message-id: 1371127899-10364-1-git-send-email-peter.maydell@linaro.org
2013-06-25target-arm: Use tuple list to sync cp regs with KVMPeter Maydell
Use the tuple list of cp registers for syncing KVM state to QEMU, rather than only syncing a very minimal set by hand. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Reinitialize all KVM VCPU registers on resetPeter Maydell
Since the ARM KVM API doesn't include a "reset this VCPU" ioctl, we have to capture the initial values of every register it knows about so that we can reset the VCPU by feeding those values back again. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Initialize cpreg list from KVM when using KVMPeter Maydell
When using KVM, use the kernel's initial state to set up the cpreg list, and sync to and from the kernel when doing migration. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Convert TCG to using (index,value) list for cp migrationPeter Maydell
Convert the TCG ARM target to using an (index,value) list for migrating coprocessors. The primary benefit of the (index,value) list is for passing state between KVM and QEMU, but it works for TCG-to-TCG migration as well and is a useful self-contained first step. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: mark up cpregs for no-migrate or raw accessPeter Maydell
Mark up coprocessor register definitions to add raw access functions or mark the register as non-migratable where necessary. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Add raw_readfn and raw_writefn to ARMCPRegInfoPeter Maydell
For reading and writing register values from the kernel for KVM, we need to provide accessor functions which are guaranteed to succeed and don't impose access checks, mask out unwritable bits, etc. Define new fields raw_readfn and raw_writefn for this purpose; these only need to be provided if there is a readfn or writefn already and it is not suitable. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Allow special cpregs to have flags setPeter Maydell
Relax the "is this a valid ARMCPRegInfo type value?" check to permit "special" cpregs to have flags other than ARM_CP_SPECIAL set. At the moment none of the other flags are relevant for special regs, but the migration related flag we're about to introduce can apply here too. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25virtio-ccw: Wire up guest and host notifies.Cornelia Huck
Guest and host notifiers are needed by vhost. We use ioeventfds for the guest notifiers, but need to fall back on qemu injecting interrupts for the host notifiers. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2013-06-25virtio-ccw: Wire up ioeventfd.Cornelia Huck
On hosts that support ioeventfd, make use of it for host-to-guest notifications via diagnose 500. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2013-06-25s390/virtio-ccw: Fix virtio resetChristian Borntraeger
On virtio reset we must reset the indicator to avoid stale interrupts, e.g. after a reset. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2013-06-25Move hardcoded initialization of xen-platform device.Paul Durrant
Creation of the xen-platform device is currently hardcoded into machine type pc's initialization code, guarded by a test for the whether the xen accelerator is enabled. This patch moves the creation of xen-platform into the initialization code of the xenfv machine type. This maintains backwards compatibility for that machine type but allows more flexibility if another machine type is used with Xen HVM domains. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2013-06-25Allow use of pc machine type (accel=xen) for Xen HVM domains.Paul Durrant
Xen HVM domains normally spawn QEMU with a dedicated xenfv machine type. The initialization code for this machine type can easily be pulled into the generic pc initialization code and guarded with a test for whether the xen accelerator options is specified, which is more consistent with the way other accelerators are used. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2013-06-25Revert "xen: start PCI hole at 0xe0000000 (same as pc_init1 and ↵Stefano Stabellini
qemu-xen-traditional)" This reverts commit 9f24a8030a70ea4954b5b8c48f606012f086f65f. The start of the PCI hole is actually set to 0xf0000000 by hvmloader. In order to retain ABI compatibility with Xen we leave the start of the PCI hole at 0xf0000000 in QEMU (for Xen) too. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2013-06-24Merge remote-tracking branch 'stefanha/block' into stagingAnthony Liguori
# By Kevin Wolf (22) and Fam Zheng (1) # Via Stefan Hajnoczi * stefanha/block: (23 commits) vmdk: refuse to open higher version than supported block: Always enable discard on the protocol level qcow2: Batch discards qcow2: Options to enable discard for freed clusters qcow2: Add refcount update reason to all callers Revert "block: Disable driver-specific options for 1.5" ide: Clean up ide_exec_cmd() ide: Convert SMART commands to ide_cmd_table handler ide: Convert CF-ATA commands to ide_cmd_table handler ide: Convert ATAPI commands to ide_cmd_table handler ide: Convert SEEK to ide_cmd_table handler ide: Convert FLUSH CACHE to ide_cmd_table handler ide: Convert SET FEATURES to ide_cmd_table handler ide: Convert CHECK POWER MDOE to ide_cmd_table handler ide: Convert READ NATIVE MAX ADDRESS to ide_cmd_table handler ide: Convert DMA read/write commands to ide_cmd_table handler ide: Convert PIO read/write commands to ide_cmd_table handler ide: Convert read/write multiple commands to ide_cmd_table handler ide: Convert verify commands to ide_cmd_table handler ide: Convert cmd_nop commands to ide_cmd_table handler ... Message-id: 1372065035-19601-1-git-send-email-stefanha@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-24Merge remote-tracking branch 'spice/spice.v71' into stagingAnthony Liguori
# By Gerd Hoffmann (1) and Hans de Goede (1) # Via Gerd Hoffmann * spice/spice.v71: spice: Add -spice disable-agent-file-transfer cmdline option (rhbz#961850) qxl: fix Coverity scan SIGN_EXTENSION error Message-id: 1372060666-18182-1-git-send-email-kraxel@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-24Merge remote-tracking branch 'kraxel/usb.84' into stagingAnthony Liguori
# By Andreas Färber (3) and others # Via Gerd Hoffmann * kraxel/usb.84: usb: fix serial number for hid devices usb: add serial bus property usb-host-libusb: set USB_DEV_FLAG_IS_HOST usb/host-libusb: Fix building with libusb git master code usb/hcd-ehci: Add Faraday FUSBH200 support usb/hcd-ehci: Replace PORTSC macros with variables usb/hcd-ehci: Add Tegra2 SysBus EHCI device usb/hcd-ehci: Split off instance_init from realize usb/hcd-ehci-sysbus: Convert to QOM realize
2013-06-24Merge remote-tracking branch 'mjt/trivial-patches' into stagingAnthony Liguori
# By Stefan Weil (5) and others # Via Michael Tokarev * mjt/trivial-patches: configure: Add signed*signed check to [u]int128_t test Makefile: pass include directives to dtc via CPPFLAGS, not CFLAGS qapi: lack of two commas in dict sd: pass bool parameter for sd_init qemu-char: use bool in qemu_chr_open_socket and simplify code a bit vnc: use booleans for vnc_connect, vnc_listen_read and vnc_display_add_client block/nand: Formatting sweep qxl: Fix QXLRam initialisation. acl: acl_add can't insert before last list element, fix configure: Fix "ERROR: ERROR: " for missing/incompatible DTC audio: Replace static functions in header file by macros, remove GCC_ATTR libcacard: Fix cppcheck warning and remove unneeded code savevm: Fix potential memory leak kvm: Fix potential resource leak (missing fclose) qemu-img: Add missing GCC_FMT_ATTR qemu-options: trivial fix for -mon args help vl: reformat SDL ifdeffery a bit Message-id: 1371893076-9643-1-git-send-email-mjt@msgid.tls.msk.ru Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-24cadence_uart: Handle backend tx errorsEdgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-06-24vmdk: refuse to open higher version than supportedFam Zheng
Refuse to open higher version for safety. Although we try to be compatible with published VMDK spec, VMware has newer version from ESXi 5.1 exported OVF/OVA, which we have no knowledge what's changed in it. And it is very likely to have more new versions in the future, so it's not safe to open them blindly. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24block: Always enable discard on the protocol levelKevin Wolf
Turning on discard options in qcow2 doesn't help a lot when the discard requests that it issues are thrown away by the raw-posix layer. This patch always enables discard functionality on the protocol level so that it's the image format's responsibility to send (or not) discard requests. Requests sent by the guest will be allowed or ignored by the top level BlockDriverState, which depends on the discard=... option like before. In particular, this means that even without specifying options, the qcow2 default of discarding deleted snapshots actually takes effect now, both for qemu and qemu-img. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24qcow2: Batch discardsKevin Wolf
This optimises the discard operation for freed clusters by batching discard requests (both snapshot deletion and bdrv_discard end up updating the refcounts cluster by cluster). Note that we don't discard asynchronously, but keep s->lock held. This is to avoid that a freed cluster is reallocated and written to while the discard is still in flight. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24qcow2: Options to enable discard for freed clustersKevin Wolf
Deleted snapshots are discarded in the image file by default, discard requests take their default from the -drive discard=... option and other places that free clusters must always be enabled explicitly. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24qcow2: Add refcount update reason to all callersKevin Wolf
This adds a refcount update reason to all callers of update_refcounts(), so that a follow-up patch can use this information to decide whether clusters that reach a refcount of 0 should be discarded in the image file. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24Revert "block: Disable driver-specific options for 1.5"Kevin Wolf
This reverts commit 8ec7d390b0d50b5e5b4b1d8dba7ba40d64a70875. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24ide: Clean up ide_exec_cmd()Kevin Wolf
All commands are now converted to ide_cmd_table handlers, so it can be unconditional now and the old switch block can go. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24ide: Convert SMART commands to ide_cmd_table handlerKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24ide: Convert CF-ATA commands to ide_cmd_table handlerKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24ide: Convert ATAPI commands to ide_cmd_table handlerKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24ide: Convert SEEK to ide_cmd_table handlerKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24ide: Convert FLUSH CACHE to ide_cmd_table handlerKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24ide: Convert SET FEATURES to ide_cmd_table handlerKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-24ide: Convert CHECK POWER MDOE to ide_cmd_table handlerKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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