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2013-07-12Introduce async_run_on_cpu()Chegu Vinod2-0/+11
Introduce an asynchronous version of run_on_cpu() i.e. the caller doesn't have to block till the call back routine finishes execution on the target vcpu. Signed-off-by: Chegu Vinod <chegu_vinod@hp.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-07-11PPC: dbdma: Support unaligned DMA accessAlexander Graf1-0/+3
The DBDMA engine really just reads bytes from a producing device (IDE in our case) and shoves these bytes into memory. It doesn't care whether any alignment takes place or not. Our code today however assumes that block accesses always happen on sector (512 byte) boundaries. This is a fair assumption for most cases. However, Mac OS X really likes to do unaligned, incomplete accesses that it finishes with the next DMA request. So we need to read / write the unaligned bits independent of the actual asynchronous request, because that one can only handle 512-byte-aligned data. We also need to cache these unaligned sectors until the next DMA request, at which point the data might be successfully flushed from the pipe. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11PPC: dbdma: Move processing to ioAlexander Graf1-1/+2
Soon we will introduce intermediate processing pauses which will allow the bottom half to restart a DMA request that couldn't be fulfilled yet. For that to work, move the processing variable into the io struct which is what DMA providers work with. While touching it, also change it into a bool Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11PPC: dbdma: Move static bh variable to device structAlexander Graf1-0/+1
The DBDMA controller has a bottom half to asynchronously process DMA request queues. This bh was stored as a gross static variable. Move it into the device struct instead. While at it, move all users of it to the new generic kick function. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11PPC: dbdma: Introduce kick functionAlexander Graf1-0/+1
The DBDMA engine really is running all the time, waiting for input. However we don't want to waste cycles constantly polling. So introduce a kick function that data providers can call to notify the DBDMA controller of new input. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11PPC: dbdma: Move defines into header fileAlexander Graf1-0/+118
We usually keep struct and constant definitions in header files. Move them there to stay consistent and to make access to fields easier. Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-10add timestamp to error_report()Seiji Aguchi1-0/+2
[Issue] When we offer a customer support service and a problem happens in a customer's system, we try to understand the problem by comparing what the customer reports with message logs of the customer's system. In this case, we often need to know when the problem happens. But, currently, there is no timestamp in qemu's error messages. Therefore, we may not be able to understand the problem based on error messages. [Solution] Add a timestamp to qemu's error message logged by error_report() with g_time_val_to_iso8601(). Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-07-10Merge remote-tracking branch 'afaerber/tags/qom-cpu-for-anthony' into stagingAnthony Liguori7-17/+42
QOM CPUState refactorings * Fix for OpenRISCCPU subclasses * Fix for gdbstub CPU selection * Move linux-user CPU functions into new header * CPUState part 10 refactoring: first_cpu, next_cpu, cpu_single_env et al. * Fix some targets to consistently inline TCG code generation * Centrally log CPU reset # gpg: Signature made Wed 10 Jul 2013 07:52:39 AM CDT using RSA key ID 3E7E013F # gpg: Can't check signature: public key not found # By Andreas Färber (41) and others # Via Andreas Färber * afaerber/tags/qom-cpu-for-anthony: (43 commits) cpu: Move reset logging to CPUState target-ppc: Change LOG_MMU_STATE() argument to CPUState target-i386: Change LOG_PCALL_STATE() argument to CPUState log: Change log_cpu_state[_mask]() argument to CPUState target-i386: Change do_smm_enter() argument to X86CPU target-i386: Change do_interrupt_all() argument to X86CPU target-xtensa: Change gen_intermediate_code_internal() arg to XtensaCPU target-unicore32: Change gen_intermediate_code_internal() signature target-sparc: Change gen_intermediate_code_internal() argument to SPARCCPU target-sh4: Change gen_intermediate_code_internal() argument to SuperHCPU target-s390x: Change gen_intermediate_code_internal() argument to S390CPU target-ppc: Change gen_intermediate_code_internal() argument to PowerPCCPU target-mips: Change gen_intermediate_code_internal() argument to MIPSCPU target-microblaze: Change gen_intermediate_code_internal() argument types target-m68k: Change gen_intermediate_code_internal() argument to M68kCPU target-lm32: Change gen_intermediate_code_internal() argument to LM32CPU target-i386: Change gen_intermediate_code_internal() argument to X86CPU target-cris: Change gen_intermediate_code_internal() argument to CRISCPU target-arm: Change gen_intermediate_code_internal() argument to ARMCPU target-alpha: Change gen_intermediate_code_internal() argument to AlphaCPU ...
2013-07-10pci: fix BRDIGE typoDon Koch1-1/+1
Fix typo in macro name: PCI_CLASS_BRDIGE_PCI_INF_SUB. Signed-off-by: Don Koch <dkoch@verizon.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-10pci-bridge: update mappings for migration/restoreDon Koch1-0/+1
Fix for LP#1187529: Devices on PCI bridge stop working when live-migrated. Update bridge mappings for all PCI bridge devices in get_pci_config_device(). Signed-off-by: Don Koch <dkoch@verizon.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-09cpu: Move reset logging to CPUStateAndreas Färber1-0/+2
x86 was using additional CPU_DUMP_* flags, so make that configurable in CPUClass::reset_dump_flags. This adds reset logging for alpha, unicore32 and xtensa. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09log: Change log_cpu_state[_mask]() argument to CPUStateAndreas Färber1-5/+21
Since commit 878096eeb278a8ac1ccd6667af73e026f29b4cf5 (cpu: Turn cpu_dump_{state,statistics}() into CPUState hooks) CPUArchState is no longer needed. Add documentation and make the functions available through qemu/log.h outside NEED_CPU_H to allow use in qom/cpu.c. Moving them to qom/cpu.h was not yet possible due to convoluted include paths, so that some devices grow an implicit and unneeded dependency on qom/cpu.h for now. Acked-by: Michael Walle <michael@walle.cc> (for lm32) Reviewed-by: Richard Henderson <rth@twiddle.net> [AF: Simplified mb_cpu_do_interrupt() and do_interrupt_all() changes] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09intc/openpic: Build openpic only onceAndreas Färber2-2/+6
Since current_cpu is CPUState it no longer depends on CPUPPCState. Move ppce500_set_mpic_proxy() to a new hw/ppc/ppc_e500.h because hw/ppc/ppc.h is too heavily using CPUPPCState and PowerPCCPU. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09cpu: Make first_cpu and next_cpu CPUStateAndreas Färber3-2/+4
Move next_cpu from CPU_COMMON to CPUState. Move first_cpu variable to qom/cpu.h. gdbstub needs to use CPUState::env_ptr for now. cpu_copy() no longer needs to save and restore cpu_next. Acked-by: Paolo Bonzini <pbonzini@redhat.com> [AF: Rebased, simplified cpu_copy()] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09kvm: Change kvm_remove_all_breakpoints() argument to CPUStateAndreas Färber1-1/+1
Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09cpu: Replace cpu_single_env with CPUState current_cpuAndreas Färber2-3/+4
Move it to qom/cpu.h. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09kvm: Free current_cpu identifierAndreas Färber1-5/+5
Since CPU loops are done as last step in kvm_{insert,remove}_breakpoint() and kvm_remove_all_breakpoints(), we do not need to distinguish between invoking CPU and iterated CPUs and can thereby free the identifier for use as a global variable. Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09vl: New qemu_get_machine_opts()Markus Armbruster1-0/+2
To be used in the next few commits to fix or clean up queries of "machine" options (-machine and its sugared forms). Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-id: 1372943363-24081-4-git-send-email-armbru@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-09exec: Remove unused global variable phys_ram_fdStefan Weil1-1/+0
It seems to be unused since several years (commit be995c27640a82c7056b6f53d02ec823570114e5 in 2006). Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Andreas Färber <afaerber@suse.de> Message-id: 1373044036-14443-1-git-send-email-sw@weilnetz.de Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-08Merge remote-tracking branch 'mst/tags/for_anthony' into stagingAnthony Liguori6-9/+61
pci,misc enhancements This includes some pci enhancements: Better support for systems with multiple PCI root buses FW cfg interface for more robust pci programming in BIOS Minor fixes/cleanups for fw cfg and cross-version migration - because of dependencies with other patches Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Sun 07 Jul 2013 03:11:18 PM CDT using RSA key ID D28D5469 # gpg: Can't check signature: public key not found # By David Gibson (10) and others # Via Michael S. Tsirkin * mst/tags/for_anthony: pci: Fold host_buses list into PCIHostState functionality pci: Remove domain from PCIHostBus pci: Simpler implementation of primary PCI bus pci: Add root bus parameter to pci_nic_init() pci: Add root bus argument to pci_get_bus_devfn() pci: Replace pci_find_domain() with more general pci_root_bus_path() pci: Use helper to find device's root bus in pci_find_domain() pci: Abolish pci_find_root_bus() pci: Move pci_read_devaddr to pci-hotplug-old.c pci: Cleanup configuration for pci-hotplug.c pvpanic: fix fwcfg for big endian hosts pvpanic: initialization cleanup MAINTAINERS: s/Marcelo/Paolo/ e1000: cleanup process_tx_desc pc_piix: cleanup init compat handling pc: pass PCI hole ranges to Guests pci: store PCI hole ranges in guestinfo structure range: add Range structure Message-id: 1373228271-31223-1-git-send-email-mst@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-07pci: Fold host_buses list into PCIHostState functionalityDavid Gibson1-0/+2
The host_buses list is an odd structure - a list of pointers to PCI root buses existing in parallel to the normal qdev tree structure. This patch removes it, instead putting the link pointers into the PCIHostState structure, which have a 1:1 relationship to PCIHostBus structures anyway. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-07pci: Add root bus parameter to pci_nic_init()David Gibson1-2/+4
At present, pci_nic_init() and pci_nic_init_nofail() assume that they will only create a NIC under the primary PCI root. As we add support for multiple PCI roots, that may no longer be the case. This patch adds a root bus parameter to pci_nic_init() (and updates callers accordingly) to allow the machine init code using it to specify the right PCI root for NICs created by old-style -net nic parameters. NICs created new-style, with -device can of course be put anywhere. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-07pci: Add root bus argument to pci_get_bus_devfn()David Gibson1-1/+1
pci_get_bus_devfn() interprets a full PCI address string to give a PCIBus * and device/function number within that bus. Currently it assumes it is working on an address under the primary PCI root bus. This patch extends it to allow the caller to specify a root bus. This might seem a little odd since the supplied address can (theoretically) include a PCI domain number. However, attempting to use a non-zero domain number there is currently an error, so that shouldn't really cause problems. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-07pci: Replace pci_find_domain() with more general pci_root_bus_path()David Gibson2-1/+11
pci_find_domain() is used in a number of places where we want an id for a whole PCI domain (i.e. the subtree under a PCI root bus). The trouble is that many platforms may support multiple independent host bridges with no hardware supplied notion of domain number. This patch, therefore, replaces calls to pci_find_domain() with calls to a new pci_root_bus_path() returning a string. The new call is implemented in terms of a new callback in the host bridge class, so it can be defined in some way that's well defined for the platform. When no callback is available we fall back on the qbus name. Most current uses of pci_find_domain() are for error or informational messages, so the change in identifiers should be harmless. The exception is pci_get_dev_path(), whose results form part of migration streams. To maintain compatibility with old migration streams, the PIIX PCI host is altered to always supply "0000" for this path, which matches the old domain number (since the code didn't actually support domains other than 0). For the pseries (spapr) PCI bridge we use a different platform-unique identifier (pseries machines can routinely have dozens of PCI host bridges). Theoretically that breaks migration streams, but given that we don't yet have migration support for pseries, it doesn't matter. Any other machines that have working migration support including PCI devices will need to be updated to maintain migration stream compatibility. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-07pci: Use helper to find device's root bus in pci_find_domain()David Gibson1-1/+2
Currently pci_find_domain() performs two functions - it locates the PCI root bus above the given bus, then looks up that root bus's domain number. This patch adds a helper function to perform the first task, finding the root bus for a given PCI device. This is then used in pci_find_domain(). This changes pci_find_domain()'s signature slightly, taking a PCIDevice instead of a PCIBus - since all callers passed something of the form dev->bus, this simplifies things slightly. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-07pci: Abolish pci_find_root_bus()David Gibson1-1/+1
pci_find_root_bus() takes a domain parameter. Currently PCI root buses with domain other than 0 can't be created, so this is more or less a long winded way of retrieving the main PCI root bus. Numbered domains don't actually properly cover the (non x86) possibilities for multiple PCI root buses, so this patch for now enforces the domain == 0 restriction in other places to replace pci_find_root_bus() with an explicit pci_find_primary_bus(). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-04exec: separate current radix tree from the one being builtPaolo Bonzini1-0/+1
This same treatment previously done to phys_node_map and phys_sections is now applied to the dispatch field of AddressSpace. Topology updates use as->next_dispatch while accesses use as->dispatch. Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04exec: move listener from AddressSpaceDispatch to AddressSpacePaolo Bonzini1-0/+2
This will help having two copies of AddressSpaceDispatch during the recreation of the radix tree (one being built, and one that is complete and will be protected by RCU). We do not want to have to unregister and re-register the listener. Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: move MemoryListener declaration earlierPaolo Bonzini1-33/+33
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04add a header file for atomic operationsPaolo Bonzini1-32/+166
We're already using them in several places, but __sync builtins are just too ugly to type, and do not provide seqcst load/store operations. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04piolist: add owner argument to initialization functions and pass devicesPaolo Bonzini1-1/+3
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04pam: pass device to init_pam and use it to set ownerPaolo Bonzini1-2/+2
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04spapr_iommu: pass device to spapr_tce_new_table and use it to set ownerPaolo Bonzini1-1/+2
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: return MemoryRegion from qemu_ram_addr_from_hostPaolo Bonzini1-1/+1
It will be needed in the next patch. Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04exec: move qemu_ram_addr_from_host_nofail to cputlb.cPaolo Bonzini1-1/+0
After the next patch it would not be used elsewhere anyway. Also, the _nofail and the standard versions of this function return different things, which is confusing. Removing the function from the public headers limits the confusion. Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: add ref/unref callsPaolo Bonzini1-0/+1
Add ref/unref calls at the following places: - places where memory regions are stashed by a listener and used outside the BQL (including in Xen or KVM). - memory_region_find callsites - creation of aliases and containers (only the aliased/contained region gets a reference to avoid loops) - around calls to del_subregion/add_subregion, where the region could disappear after the first call Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: introduce memory_region_presentPaolo Bonzini1-0/+12
This new API will avoid having too many memory_region_ref/unref in paths that currently use memory_region_find. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: add ref/unrefPaolo Bonzini1-0/+30
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: add getter for ownerPaolo Bonzini1-0/+7
Whenever memory regions are accessed outside the BQL, they need to be preserved against hot-unplug. MemoryRegions actually do not have their own reference count; they piggyback on a QOM object, their "owner". The owner is set at creation time, and there is a function to retrieve the owner. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: add owner argument to initialization functionsPaolo Bonzini1-0/+17
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04ioport: Move portio types to ioport.hJan Kiszka2-19/+11
This decouples memory.h from ioport.h, concentrating all portio related types in a single header. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04vmport: Disentangle read handler type from portioJan Kiszka1-2/+4
In case the latter may vanish one day, make sure the vmport read handler type will remain unaffected. This is also conceptually cleaner. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04ioport: Remove unused old dispatching servicesJan Kiszka3-45/+0
Remove unused ioport_register and isa_unassign_ioport along with everything that only those services used. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04ioport: Switch dispatching to memory core layerJan Kiszka3-7/+1
The current ioport dispatcher is a complex beast, mostly due to the need to deal with old portio interface users. But we can overcome it without converting all portio users by embedding the required base address of a MemoryRegionPortio access into that data structure. That removes the need to have the additional MemoryRegionIORange structure in the loop on every access. To handle old portio memory ops, we simply install dispatching handlers for portio memory regions when registering them with the memory core. This removes the need for the old_portio field. We can drop the additional aliasing of ioport regions and also the special address space listener. cpu_in and cpu_out now simply call address_space_read/write. And we can concentrate portio handling in a single source file. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04isa: implement isa_is_ioport_assigned via memory_region_findJan Kiszka1-1/+0
Open-code isa_is_ioport_assigned via a memory region lookup. As all IO ports are now directly or indirectly registered via the memory API, this becomes possible and will finally allow us to drop the ioport tables. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04Privatize register_ioport_read/writeJan Kiszka1-4/+0
No more users outside of ioport.c. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04dma: keep a device alive while it has SGListsPaolo Bonzini2-2/+4
Reviewed-by: Anthony Liguori <aliguori@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04pci: Move pci_read_devaddr to pci-hotplug-old.cDavid Gibson1-2/+2
pci_read_devaddr() is only used by the legacy functions for the old PCI hotplug interface in pci-hotplug-old.c. So we move the function there, and make it static. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-04pvpanic: initialization cleanupMichael S. Tsirkin1-1/+1
Avoid use of static variables: PC systems initialize pvpanic device through pvpanic_init, so we can simply create the fw_cfg file at that point. This also makes it possible to skip device creation completely if fw_cfg is not there, e.g. for xen - so the ports it reserves are not discoverable by guests. Also, make pvpanic_init void since callers ignore return status anyway. Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Paul Durrant <Paul.Durrant@citrix.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-04pc: pass PCI hole ranges to GuestsMichael S. Tsirkin1-0/+1
Guest currently has to jump through lots of hoops to guess the PCI hole ranges. It's fragile, and makes us change BIOS each time we add a new chipset. Let's report the window in a ROM file, to make BIOS do exactly what QEMU intends. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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