- 28 6月, 2013 1 次提交
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由 Peter Maydell 提交于
Fix compilation failures for linux-user targets following recent migration related commits bd2fa51f and 43487c67. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Message-id: 1372362818-4740-1-git-send-email-peter.maydell@linaro.org Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 27 6月, 2013 13 次提交
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由 Anthony Liguori 提交于
# By Michael R. Hines (9) and others # Via Juan Quintela * quintela/migration.next: rdma: introduce capability x-rdma-pin-all rdma: new QEMUFileOps hooks rdma: introduce qemu_ram_foreach_block() rdma: export qemu_fflush() rdma: introduce qemu_file_mode_is_not_valid() rdma: export throughput w/ MigrationStats QMP rdma: export yield_until_fd_readable() rdma: introduce qemu_update_position() rdma: add documentation migration: do not overwrite zero pages Revert "migration: do not sent zero pages in bulk stage" arch_init/ram_load: add error message for block length mismatch Message-id: 1372329455-5995-1-git-send-email-quintela@redhat.com Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Michael R. Hines 提交于
This capability allows you to disable dynamic chunk registration for better throughput on high-performance links. For example, using an 8GB RAM virtual machine with all 8GB of memory in active use and the VM itself is completely idle using a 40 gbps infiniband link: 1. x-rdma-pin-all disabled total time: approximately 7.5 seconds @ 9.5 Gbps 2. x-rdma-pin-all enabled total time: approximately 4 seconds @ 26 Gbps These numbers would of course scale up to whatever size virtual machine you have to migrate using RDMA. Enabling this feature does *not* have any measurable affect on migration *downtime*. This is because, without this feature, all of the memory will have already been registered already in advance during the bulk round and does not need to be re-registered during the successive iteration rounds. Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NChegu Vinod <chegu_vinod@hp.com> Reviewed-by: NEric Blake <eblake@redhat.com> Tested-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Michael R. Hines 提交于
These are the prototypes and implementation of new hooks that RDMA takes advantage of to perform dynamic page registration. An optional hook is also introduced for a custom function to be able to override the default save_page function. Also included are the prototypes and accessor methods used by arch_init.c which invoke funtions inside savevm.c to call out to the hooks that may or may not have been overridden inside of QEMUFileOps. Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Michael R. Hines 提交于
This is used during RDMA initialization in order to transmit a description of all the RAM blocks to the peer for later dynamic chunk registration purposes. Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Michael R. Hines 提交于
RDMA uses this to flush the control channel before sending its own message to handle page registrations. Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Michael R. Hines 提交于
QEMUFileRDMA also has read and write modes. This function is now shared to reduce code duplication. Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Michael R. Hines 提交于
This exposes throughput (in megabits/sec) through QMP. Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Michael R. Hines 提交于
The RDMA event channel can be made non-blocking just like a TCP socket. Exporting this function allows us to yield so that the QEMU monitor remains available. Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Michael R. Hines 提交于
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: NJuan Quintela <quintela@redhat.com> Tested-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Michael R. Hines 提交于
docs/rdma.txt contains full documentation, wiki links, github url and contact information. Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NChegu Vinod <chegu_vinod@hp.com> Tested-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NMichael R. Hines <mrhines@us.ibm.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Lieven 提交于
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: NPeter Lieven <pl@kamp.de> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Lieven 提交于
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 f1c72795. Conflicts: arch_init.c Signed-off-by: NPeter Lieven <pl@kamp.de> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Alon Levy 提交于
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: NAlon Levy <alevy@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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- 26 6月, 2013 20 次提交
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由 Anthony Liguori 提交于
# 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: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
# 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: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
# 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: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
# 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: NAnthony Liguori <aliguori@us.ibm.com>
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由 Peter Crosthwaite 提交于
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: NPeter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: NAndreas Färber <afaerber@suse.de> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Crosthwaite 提交于
The prescribed transition from Sysbus::init function to a Device::realize. Cc: afaerber@suse.de Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: NAndreas Färber <afaerber@suse.de> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Crosthwaite 提交于
Define and use standard QOM cast macro. Remove usages of DO_UPCAST and direct -> style casting. Cc: afaerber@suse.de Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: NAndreas Färber <afaerber@suse.de> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Stefan Weil 提交于
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: NStefan Weil <sw@weilnetz.de> Signed-off-by: NPeter Chubb <peter.chubb@nicta.com.au> Message-id: 1370810662-32320-1-git-send-email-sw@weilnetz.de Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
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: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NAndreas Färber <afaerber@suse.de> Message-id: 1371209256-11408-1-git-send-email-peter.maydell@linaro.org
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由 Jean-Christophe DUBOIS 提交于
* 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: NJean-Christophe DUBOIS <jcd@tribudubois.net> Message-id: 1369898943-1993-3-git-send-email-jcd@tribudubois.net Reviewed-by: NPeter Chubb <peter.chubb@nicta.com.au> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Jean-Christophe DUBOIS 提交于
* implement compare 1 2 and 3 registers * simplify Debug printf Signed-off-by: NJean-Christophe DUBOIS <jcd@tribudubois.net> Message-id: 1369898943-1993-2-git-send-email-jcd@tribudubois.net Reviewed-by: NPeter Chubb <peter.chubb@nicta.com.au> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 John Rigby 提交于
By calling qemu_devtree_dumpdtb near the end of load_dtb. Signed-off-by: NJohn Rigby <john.rigby@linaro.org> Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
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: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NAndreas Färber <afaerber@suse.de> Message-id: 1371127899-10364-1-git-send-email-peter.maydell@linaro.org
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由 Peter Maydell 提交于
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: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
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: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
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: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
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: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
Mark up coprocessor register definitions to add raw access functions or mark the register as non-migratable where necessary. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
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: NPeter Maydell <peter.maydell@linaro.org>
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由 Peter Maydell 提交于
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: NPeter Maydell <peter.maydell@linaro.org>
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- 25 6月, 2013 6 次提交
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由 Cornelia Huck 提交于
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: NCornelia Huck <cornelia.huck@de.ibm.com>
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由 Cornelia Huck 提交于
On hosts that support ioeventfd, make use of it for host-to-guest notifications via diagnose 500. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
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由 Christian Borntraeger 提交于
On virtio reset we must reset the indicator to avoid stale interrupts, e.g. after a reset. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
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由 Paul Durrant 提交于
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: NPaul Durrant <paul.durrant@citrix.com> Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>
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由 Paul Durrant 提交于
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: NPaul Durrant <paul.durrant@citrix.com> Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>
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由 Stefano Stabellini 提交于
This reverts commit 9f24a803. 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: NStefano Stabellini <stefano.stabellini@eu.citrix.com>
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