summaryrefslogtreecommitdiffstats
path: root/include
Commit message (Collapse)AuthorAgeFilesLines
* Merge remote-tracking branch 'afaerber/qom-cpu' into stagingAnthony Liguori2013-06-2810-32/+142
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | # By Andreas Färber # Via Andreas Färber * afaerber/qom-cpu: (24 commits) cpu: Turn cpu_unassigned_access() into a CPUState hook hwaddr: Make hwaddr type usable beyond softmmu cpu: Change qemu_init_vcpu() argument to CPUState cpus: Change qemu_dummy_start_vcpu() argument to CPUState cpus: Change qemu_kvm_start_vcpu() argument to CPUState cpus: Change cpu_handle_guest_debug() argument to CPUState gdbstub: Set gdb_set_stop_cpu() argument to CPUState kvm: Change kvm_cpu_exec() argument to CPUState kvm: Change kvm_handle_internal_error() argument to CPUState cpu: Turn cpu_dump_{state,statistics}() into CPUState hooks cpus: Change qemu_kvm_init_cpu_signals() argument to CPUState kvm: Change kvm_set_signal_mask() argument to CPUState cpus: Change qemu_kvm_wait_io_event() argument to CPUState cpus: Change cpu_thread_is_idle() argument to CPUState cpu: Change cpu_exit() argument to CPUState kvm: Change cpu_synchronize_state() argument to CPUState kvm: Change kvm_cpu_synchronize_state() argument to CPUState gdbstub: Simplify find_cpu() cpu: Guard cpu_{save,load}() definitions target-openrisc: Register VMStateDescription for OpenRISCCPU ...
| * cpu: Turn cpu_unassigned_access() into a CPUState hookAndreas Färber2013-06-281-0/+33
| | | | | | | | | | | | | | Use it for all targets, but be careful not to pass invalid CPUState. cpu_single_env can be NULL, e.g. on Xen. Signed-off-by: Andreas Färber <afaerber@suse.de>
| * hwaddr: Make hwaddr type usable beyond softmmuAndreas Färber2013-06-284-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | While not normally needed for *-user, it can safely be used there since always based on uint64_t, to avoid ifdeffery. To avoid accidental uses, move the guards from exec/hwaddr.h to its inclusion sites. No need for them in include/hw/. Prepares for hwaddr use in qom/cpu.h. Signed-off-by: Andreas Färber <afaerber@suse.de>
| * cpu: Change qemu_init_vcpu() argument to CPUStateAndreas Färber2013-06-282-8/+8
| | | | | | | | | | | | | | | | This allows to move the call into CPUState's realizefn. Therefore move the stub into libqemustub.a. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * gdbstub: Set gdb_set_stop_cpu() argument to CPUStateAndreas Färber2013-06-281-1/+1
| | | | | | | | | | | | | | | | | | Use CPUState::env_ptr for now. Prepares for changing cpu_handle_guest_debug() argument to CPUState. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * kvm: Change kvm_cpu_exec() argument to CPUStateAndreas Färber2013-06-281-1/+1
| | | | | | | | | | | | | | | | | | | | It no longer uses CPUArchState. Prepares for changing qemu_kvm_cpu_thread_fn() opaque to CPUState. Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * cpu: Turn cpu_dump_{state,statistics}() into CPUState hooksAndreas Färber2013-06-283-11/+43
| | | | | | | | | | | | | | | | | | Make cpustats monitor command available unconditionally. Prepares for changing kvm_handle_internal_error() and kvm_cpu_exec() arguments to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
| * kvm: Change kvm_set_signal_mask() argument to CPUStateAndreas Färber2013-06-281-1/+1
| | | | | | | | | | | | | | | | | | | | CPUArchState is no longer needed. Prepares for changing qemu_kvm_init_cpu_signals() argument to CPUState. Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * cpu: Change cpu_exit() argument to CPUStateAndreas Färber2013-06-282-2/+8
| | | | | | | | | | | | | | | | It no longer depends on CPUArchState, so move it to qom/cpu.c. Prepares for changing GDBState::c_cpu to CPUState. Signed-off-by: Andreas Färber <afaerber@suse.de>
| * kvm: Change cpu_synchronize_state() argument to CPUStateAndreas Färber2013-06-281-2/+2
| | | | | | | | | | | | | | | | Change Monitor::mon_cpu to CPUState as well. Reviewed-by: liguang <lig.fnst@cn.fujitsu.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * kvm: Change kvm_cpu_synchronize_state() argument to CPUStateAndreas Färber2013-06-281-2/+2
| | | | | | | | | | | | | | | | | | It no longer relies on CPUArchState since 20d695a. Reviewed-by: liguang <lig.fnst@cn.fujitsu.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * cpu: Guard cpu_{save,load}() definitionsAndreas Färber2013-06-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | A few targets already managed to implement cpu_save() and cpu_load() without defining CPU_SAVE_VERSION that causes them to be registered. Guard the prototypes with CPU_SAVE_VERSION to avoid this happening again until all targets are converted to VMState (or QIDL). Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * cpu: Introduce VMSTATE_CPU() macro for CPUStateAndreas Färber2013-06-281-0/+14
| | | | | | | | | | | | | | To be used to embed common CPU state into CPU subclasses. Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * cpu: Introduce device_class_set_vmsd() helperAndreas Färber2013-06-281-0/+21
| | | | | | | | | | | | | | | | | | It's the equivalent to cpu_class_set_vmsd(), to assign DeviceClass::vmsd. It wasn't needed before since only static, unmigratable VMStateDescriptions were assigned so far. Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
| * cpu: Fix cpu_class_set_vmsd() documentationAndreas Färber2013-06-281-1/+1
| | | | | | | | | | | | | | | | It's CPUClass::vmsd, not CPUState::vmsd. Reviewed-by: liguang <lig.fnst@cn.fujitsu.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* | block: change default of .has_zero_init to 0Peter Lieven2013-06-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | .has_zero_init defaults to 1 for all formats and protocols. this is a dangerous default since this means that all new added drivers need to manually overwrite it to 0 if they do not ensure that a device is zero initialized after bdrv_create(). if a driver needs to explicitly set this value to 1 its easier to verify the correctness in the review process. during review of the existing drivers it turned out that ssh and gluster had a wrong default of 1. both protocols support host_devices as backend which are not by default zero initialized. this wrong assumption will lead to possible corruption if qemu-img convert is used to write to such a backend. vpc and vmdk also defaulted to 1 altough they support fixed respectively flat extends. this has to be addresses in separate patches. both formats as well as the mentioned ssh and gluster are turned to the default of 0 with this patch for safety. a similar problem with the wrong default existed for iscsi most likely because the driver developer did oversee the default value of 1. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | block: add basic backup support to block driverDietmar Maurer2013-06-281-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | backup_start() creates a block job that copies a point-in-time snapshot of a block device to a target block device. We call backup_do_cow() for each write during backup. That function reads the original data from the block device before it gets overwritten. The data is then written to the target device. Currently backup cluster size is hardcoded to 65536 bytes. [I made a number of changes to Dietmar's original patch and folded them in to make code review easy. Here is the full list: * Drop BackupDumpFunc interface in favor of a target block device * Detect zero clusters with buffer_is_zero() and use bdrv_co_write_zeroes() * Use 0 delay instead of 1us, like other block jobs * Unify creation/start functions into backup_start() * Simplify cleanup, free bitmap in backup_run() instead of cb * function * Use HBitmap to avoid duplicating bitmap code * Use bdrv_getlength() instead of accessing ->total_sectors * directly * Delete the backup.h header file, it is no longer necessary * Move ./backup.c to block/backup.c * Remove #ifdefed out code * Coding style and whitespace cleanups * Use bdrv_add_before_write_notifier() instead of blockjob-specific hooks * Keep our own in-flight CowRequest list instead of using block.c tracked requests. This means a little code duplication but is much simpler than trying to share the tracked requests list and use the backup block size. * Add on_source_error and on_target_error error handling. * Use trace events instead of DPRINTF() -- stefanha] Signed-off-by: Dietmar Maurer <dietmar@proxmox.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | block: add bdrv_add_before_write_notifier()Stefan Hajnoczi2013-06-281-1/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bdrv_add_before_write_notifier() function installs a callback that is invoked before a write request is processed. This will be used to implement copy-on-write point-in-time snapshots where we need to copy out old data before overwriting it. Note that BdrvTrackedRequest is moved to block_int.h since it is passed to .notify() functions. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | notify: add NotiferWithReturn so notifier list can abortStefan Hajnoczi2013-06-281-0/+29
|/ | | | | | | | | | | | | | notifier_list_notify() has no return value. This is fine when we just want to invoke side-effects. Sometimes it's useful for notifiers to produce a return value. This allows notifiers to "veto" an operation and will be used by the block layer before-write notifier. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* linux-user: Fix compilation failurePeter Maydell2013-06-272-1/+2
| | | | | | | | | Fix compilation failures for linux-user targets following recent migration related commits bd2fa51fcd and 43487c67. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1372362818-4740-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* rdma: introduce capability x-rdma-pin-allMichael R. Hines2013-06-271-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Reviewed-by: Eric Blake <eblake@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>
* rdma: new QEMUFileOps hooksMichael R. Hines2013-06-272-0/+49
| | | | | | | | | | | | | | | | | | | | | 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: 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>
* rdma: introduce qemu_ram_foreach_block()Michael R. Hines2013-06-271-0/+5
| | | | | | | | | | | | | | 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: 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>
* rdma: export qemu_fflush()Michael R. Hines2013-06-271-0/+1
| | | | | | | | | | | | | RDMA uses this to flush the control channel before sending its own message to handle page registrations. 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>
* rdma: introduce qemu_file_mode_is_not_valid()Michael R. Hines2013-06-271-0/+1
| | | | | | | | | | | | | QEMUFileRDMA also has read and write modes. This function is now shared to reduce code duplication. 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>
* rdma: export throughput w/ MigrationStats QMPMichael R. Hines2013-06-271-0/+1
| | | | | | | | | | | | This exposes throughput (in megabits/sec) through QMP. 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>
* rdma: export yield_until_fd_readable()Michael R. Hines2013-06-271-0/+6
| | | | | | | | | | | | | | 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: 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>
* rdma: introduce qemu_update_position()Michael R. Hines2013-06-272-0/+3
| | | | | | | | | | | | | | 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>
* Revert "xen: start PCI hole at 0xe0000000 (same as pc_init1 and ↵Stefano Stabellini2013-06-251-3/+0
| | | | | | | | | | | | 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>
* Merge remote-tracking branch 'kraxel/usb.84' into stagingAnthony Liguori2013-06-241-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | # 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
| * usb: add serial bus propertyGerd Hoffmann2013-06-241-0/+1
| | | | | | | | | | | | | | | | This patch adds a serial property for all usb devices, which can be used to set the serial number of a usb device (as listed by lsusb -v) to a specific value. Applies to emulated devices only. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* | vnc: use booleans for vnc_connect, vnc_listen_read and vnc_display_add_clientMichael Tokarev2013-06-211-1/+1
| | | | | | | | | | | | | | | | | | | | Some arguments to these functions are booleans - either by declaration, or by actual usage, but sometimes value of 0 or 1 is passed for a bool, and sometimes it is declared as int but a bool value, or true/false, is passed to it instead. Clean it up a bit. Cc: liguang <lig.fnst@cn.fujitsu.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* | audio: Replace static functions in header file by macros, remove GCC_ATTRStefan Weil2013-06-211-3/+0
|/ | | | | | | | | | | Using macros instead of static functions for dolog and for ldebug simplifies the code and can also reduce the total code size. GCC_ATTR was only used in audio_int.h, so it is now unused and the definition can be removed from compiler.h. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* memory: give name to every AddressSpaceAlexey Kardashevskiy2013-06-201-2/+4
| | | | | | | | | | | | | The "info mtree" command in QEMU console prints only "memory" and "I/O" address spaces while there are actually a lot more other AddressSpace structs created by PCI and VIO devices. Those devices do not normally have names and therefore not present in "info mtree" output. The patch fixes this. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* dma: eliminate DMAContextPaolo Bonzini2013-06-203-62/+49
| | | | | | | | | The DMAContext is a simple pointer to an AddressSpace that is now always already available. Make everyone hold the address space directly, and clean up the DMA API to use the AddressSpace directly. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* spapr_vio: take care of creating our own AddressSpace/DMAContextPaolo Bonzini2013-06-202-11/+11
| | | | | | | | | | | | | Fetch the root region from the sPAPRTCETable, and use it to build an AddressSpace and DMAContext. Now, everywhere we have a DMAContext we also have access to the corresponding AddressSpace (either because we create it just before the DMAContext, or because dma_context_memory's AddressSpace is trivially address_space_memory). Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* pci: use memory core for iommu supportAvi Kivity2013-06-203-4/+5
| | | | | | | | | | | | | | Use the new iommu support in the memory core for iommu support. The only user, spapr, is also converted, but it still provides a DMAContext interface until the non-PCI bits switch to AddressSpace. Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Avi Kivity <avi.kivity@gmail.com> [ Do not calls memory_region_del_subregion() on the device's bus_master_enable_region, it is an alias; return an AddressSpace from the IOMMU hook and remove the destructor hook. - David Gibson ] Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* dma: eliminate old-style IOMMU supportPaolo Bonzini2013-06-201-67/+12
| | | | | | | | The translate function in the DMAContext is now always NULL. Remove every reference to it. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* spapr: use memory core for iommu supportPaolo Bonzini2013-06-201-0/+1
| | | | | | | | | Now we can stop using a "translating" DMAContext, but we do not yet modify the sPAPRTCETable users to get an AddressSpace; they keep using the table via a DMAContext. Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* spapr: convert TCE API to use an opaque typePaolo Bonzini2013-06-203-6/+9
| | | | | | | | | | The TCE table is currently returned as a DMAContext, and non-type-safe APIs are called later passing back the DMAContext. Since we want to move away from DMAContext, use an opaque type instead, and add an accessor to retrieve the DMAContext from it. Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* memory: Add iommu map/unmap notifiersDavid Gibson2013-06-201-0/+32
| | | | | | | | | | | This patch adds a NotifierList to MemoryRegions which represent IOMMUs allowing other parts of the code to register interest in mappings or unmappings from the IOMMU. All IOMMU implementations will need to call memory_region_notify_iommu() to inform those waiting on the notifier list, whenever an IOMMU mapping is made or removed. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* memory: iommu supportAvi Kivity2013-06-201-4/+62
| | | | | | | | | | | | | | | | | | Add a new memory region type that translates addresses it is given, then forwards them to a target address space. This is similar to an alias, except that the mapping is more flexible than a linear translation and trucation, and also less efficient since the translation happens at runtime. The implementation uses an AddressSpace mapping the target region to avoid hierarchical dispatch all the way to the resolved region; only iommu regions are looked up dynamically. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Avi Kivity <avi.kivity@gmail.com> [Modified to put translation in address_space_translate; assume IOMMUs are not reachable from TCG. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* memory: make section size a 128-bit integerPaolo Bonzini2013-06-202-1/+23
| | | | | | | | | | | So far, the size of all regions passed to listeners could fit in 64 bits, because artificial regions (containers and aliases) are eliminated by the memory core, leaving only device regions which have reasonable sizes An IOMMU however cannot be eliminated by the memory core, and may have an artificial size, hence we may need 65 bits to represent its size. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Revert "memory: limit sections in the radix tree to the actual address space ↵Paolo Bonzini2013-06-201-3/+0
| | | | | | | | size" This reverts commit 86a8623692b1b559a419a92eb8b6897c221bca74. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* exec: return MemoryRegion from address_space_translatePaolo Bonzini2013-06-201-4/+4
| | | | | | | | Only address_space_translate_for_iotlb needs to return the section. Every caller of address_space_translate now uses only section->mr, return it directly. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* exec: Resolve subpages in one step except for IOTLB fillsJan Kiszka2013-06-201-0/+4
| | | | | | | | | | | | | | | | Except for the case of setting the IOTLB entry in TCG mode, we can avoid the subpage dispatching handlers and do the resolution directly on address_space_lookup_region. An IOTLB entry describes a full page, not only the region that the first access to a sub-divided page may return. This patch therefore introduces a special translation function, address_space_translate_for_iotlb, that avoids the subpage resolutions. In contrast, callers of the existing address_space_translate service will now always receive the terminal memory region section. This will be important for breaking the BQL and for enabling unaligned memory region. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* memory: move private types to exec.cPaolo Bonzini2013-06-201-15/+0
| | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* vl: Rename *boot_devices to *boot_order, for consistencyMarkus Armbruster2013-06-191-2/+2
| | | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Message-id: 1371208516-7857-5-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* qemu-option: check_params() is now unused, drop itMarkus Armbruster2013-06-191-2/+0
| | | | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Message-id: 1371208516-7857-3-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* Merge remote-tracking branch 'luiz/queue/qmp' into stagingAnthony Liguori2013-06-172-3/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | # By Luiz Capitulino # Via Luiz Capitulino * luiz/queue/qmp: qerror: drop QERR_OPEN_FILE_FAILED macro block: bdrv_reopen_prepare(): don't use QERR_OPEN_FILE_FAILED savevm: qmp_xen_save_devices_state(): use error_setg_file_open() dump: qmp_dump_guest_memory(): use error_setg_file_open() cpus: use error_setg_file_open() blockdev: use error_setg_file_open() block: mirror_complete(): use error_setg_file_open() rng-random: use error_setg_file_open() error: add error_setg_file_open() helper Message-id: 1371484631-29510-1-git-send-email-lcapitulino@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
OpenPOWER on IntegriCloud