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* pci: update all users to look in pci/Michael S. Tsirkin2012-12-172-3/+3
| | | | | | update all users so we can remove the makefile hack. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* pc_piix: Move kvm irq routing functions out of pc_piix.cJason Baron2012-11-261-0/+40
| | | | | | | | | | Rename: kvm_piix3_gsi_handlei() -> kvm_pc_gsi_handler() kvm_piix3_setup_irq_routing() -> kvm_pc_setup_irq_routing() This is in preparation for other users, namely q35 at this time. Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* cpus: Pass CPUState to run_on_cpu()Andreas Färber2012-10-311-1/+1
| | | | | | | | CPUArchState is no longer needed. Move the declaration to include/qemu/cpu.h and add documentation. Signed-off-by: Andreas Färber <afaerber@suse.de>
* apic: Store X86CPU in APICCommonStateAndreas Färber2012-10-301-4/+4
| | | | | | | | | | | Prepares for using a link<> property to connect APIC with CPU and for changing the CPU APIs to CPUState. Resolve Coding Style warnings by moving the closing parenthesis of foreach_apic() macro to next line. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
* pci-assign: Use msi_get_message()Alex Williamson2012-10-291-4/+1
| | | | | | | | pci-assign only uses a subset of the flexibility msi_get_message() provides, but it's still worthwhile to use it. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* pci-assign: Use pci_intx_route_changed()Alex Williamson2012-10-291-2/+1
| | | | | | | Replace open coded version Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* Rename target_phys_addr_t to hwaddrAvi Kivity2012-10-232-14/+14
| | | | | | | | | | | | | | | target_phys_addr_t is unwieldly, violates the C standard (_t suffixes are reserved) and its purpose doesn't match the name (most target_phys_addr_t addresses are not target specific). Replace it with a finger-friendly, standards conformant hwaddr. Outstanding patchsets can be fixed up with the command git rebase -i --exec 'find -name "*.[ch]" | xargs s/target_phys_addr_t/hwaddr/g' origin Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* pci-assign: use monitor_handle_fd_paramPaolo Bonzini2012-09-261-9/+3
| | | | | | | | | | There is no need to open-code the choice between a file descriptor number or a named one. Just use monitor_handle_fd_param, which also takes care of printing the error message. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
* kvm: i386: Add classic PCI device assignmentJan Kiszka2012-09-102-1/+1916
| | | | | | | | | | | | | | | | | | This adds PCI device assignment for i386 targets using the classic KVM interfaces. This version is 100% identical to what is being maintained in qemu-kvm for several years and is supported by libvirt as well. It is expected to remain relevant for another couple of years until kernels without full-features and performance-wise equivalent VFIO support are obsolete. A refactoring to-do that should be done in-tree is to model MSI and MSI-X support via the generic PCI layer, similar to what VFIO is already doing for MSI-X. This should improve the correctness and clean up the code from duplicate logic. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Acked-by: Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* kvm: i8254: Finish time conversion fixJan Kiszka2012-08-141-4/+10
| | | | | | | | | | | | | | 0cdd3d1444 fixed reading back the counter load time from the kernel while assuming the kernel would always update its load time on writing the state. That is only true for channel 1, and so pit_get_channel_info returned wrong output pin states for high counter values. Fix this by applying the offset also on kvm_pit_put. Now we also need to update the offset when we write the state while the VM is stopped as it keeps on changing in that state. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* kvm: i8254: Cache kernel clock offset in KVMPITStateJan Kiszka2012-08-141-14/+24
| | | | | | | | | | | To prepare the final fix for clock calibration issues with the in-kernel PIT, we want to cache the offset between vmclock and the clock used by the in-kernel PIT. So far, we only need to update it when the VM state changes between running and stopped because we only read the in-kernel PIT state while the VM is running. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* kvm: Rename kvm_irqchip_set_irq() to kvm_set_irq()Peter Maydell2012-08-092-2/+2
| | | | | | | | | | | Rename the function kvm_irqchip_set_irq() to kvm_set_irq(), since it can be used for sending (asynchronous) interrupts whether there is a full irqchip model in the kernel or not. (We don't include 'async' in the function name since asynchronous is the normal case.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Avi Kivity <avi@redhat.com>
* make: automatically include dependencies in recursive subdir rules (v2)Anthony Liguori2012-06-191-0/+1
| | | | | | | I think I understand enough of what's going on in these rules to ensure this is right. But I could certainly use a second or third opinion... Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* kvm: i8254: Fix conversion of in-kernel to userspace stateJan Kiszka2012-06-111-5/+52
| | | | | | | | | | | | | | | | Due to a offset between the clock used to generate the in-kernel count_load_time (CLOCK_MONOTONIC) and the clock used for processing this in userspace (vm_clock), reading back the output of PIT channel 2 via port 0x61 was broken. One use cases that suffered from it was the CPU frequency calibration of SeaBIOS, which also affected IDE/AHCI timeouts. This fixes it by calibrating the offset between both clocks on kvm_pit_get and adjusting the kernel value before saving it in the userspace state. As the calibration only works while the vm_clock is running, we cache the in-kernel state across stopped phases. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* kvm/apic: correct short memsetJim Meyering2012-06-111-1/+1
| | | | | | | | | kvm_put_apic_state's attempt to clear *kapic before setting its bits cleared sizeof(void*) bytes (no more than 8) rather than the intended 1024 (KVM_APIC_REG_SIZE) bytes. Spotted by coverity. Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* kvm: x86: Wire up MSI support for in-kernel irqchipJan Kiszka2012-05-161-2/+32
| | | | | | | | | Catch writes to the MSI MMIO region in the KVM APIC and forward them to the kernel. Provide the kernel support GSI routing, this allows to enable MSI support also for in-kernel irqchip mode. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* kvmclock: guest stop notificationEric B Munson2012-04-121-0/+16
| | | | | | | | | | | | | Often when a guest is stopped from the qemu console, it will report spurious soft lockup warnings on resume. There are kernel patches being discussed that will give the host the ability to tell the guest that it is being stopped and should ignore the soft lockup warning that generates. This patch uses the qemu Notifier system to tell the guest it is about to be stopped. Signed-off-by: Eric B Munson <emunson@mgebm.net> Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* i386 hw/: Don't use CPUStateAndreas Färber2012-03-141-1/+1
| | | | | | | | | | Scripted conversion: for file in hw/apic.h hw/kvm/apic.c hw/kvmvapic.c hw/pc.c hw/vmport.c hw/xen_machine_pv.c; do sed -i "s/CPUState/CPUX86State/g" $file done Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Anthony Liguori <aliguori@us.ibm.com>
* kvmclock: Always register typeAndreas Färber2012-03-131-2/+0
| | | | | | | | | | | | | | | | | | | Currently, the "kvmclock" type is only registered when kvm_enabled(). This breaks when moving type registration to before command line parsing (so that QOM types can be used for CPU and machine). Since the QOM classes are lazy-initialized anyway and kvmclock_create() has another kvm_enabled() check, simply drop the KVM check in kvmclock_register_types(). kvm-i8259, kvm-apic and kvm-ioapic do not suffer from such a check. Reviewed-by: please. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* kvm: x86: Add user space part for in-kernel i8254Jan Kiszka2012-03-071-0/+254
| | | | | | | | | | | | | | | This provides the required user space stubs to enable the in-kernel i8254 emulation of KVM. The in-kernel model supports lost tick compensation according to the "delay" policy. This is enabled by default and can be switched off via a device property. Depending on the feature set of the host kernel (before 2.6.32), we may have to disable the HPET or lack sound output from the PC speaker. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* Merge remote-tracking branch 'qemu-kvm/uq/master' into stagingAnthony Liguori2012-03-011-0/+32
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * qemu-kvm/uq/master: pc-bios: update kvmvapic.bin kvmvapic: Use optionrom helpers optionsrom: Reserve space for checksum kvmvapic: Simplify mp/up_set_tpr kvmvapic: Introduce TPR access optimization for Windows guests kvmvapic: Add option ROM target-i386: Add infrastructure for reporting TPR MMIO accesses Allow to use pause_all_vcpus from VCPU context Process pending work while waiting for initial kick-off in TCG mode Remove useless casts from cpu iterators kvm: Set cpu_single_env only once kvm: Synchronize cpu state in kvm_arch_stop_on_emulation_error()
| * kvmvapic: Introduce TPR access optimization for Windows guestsJan Kiszka2012-02-181-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables acceleration for MMIO-based TPR registers accesses of 32-bit Windows guest systems. It is mostly useful with KVM enabled, either on older Intel CPUs (without flexpriority feature, can also be manually disabled for testing) or any current AMD processor. The approach introduced here is derived from the original version of qemu-kvm. It was refactored, documented, and extended by support for user space APIC emulation, both with and without KVM acceleration. The VMState format was kept compatible, so was the ABI to the option ROM that implements the guest-side para-virtualized driver service. This enables seamless migration from qemu-kvm to upstream or, one day, between KVM and TCG mode. The basic concept goes like this: - VAPIC PV interface consisting of I/O port 0x7e and (for KVM in-kernel irqchip) a vmcall hypercall is registered - VAPIC option ROM is loaded into guest - option ROM activates TPR MMIO access reporting via port 0x7e - TPR accesses are trapped and patched in the guest to call into option ROM instead, VAPIC support is enabled - option ROM TPR helpers track state in memory and invoke hypercall to poll for pending IRQs if required Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* | i8259: Do not clear level-triggered lines in IRR on initJan Kiszka2012-02-171-1/+1
|/ | | | | | | | | | When an input line is handled as level-triggered, it will immediately raise an IRQ on the output of a PIC again that goes through an init reset. So only clear the edge-triggered inputs from IRR in that scenario. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* qom: Unify type registrationAndreas Färber2012-02-154-8/+8
| | | | | | | | | | | | | Replace device_init() with generalized type_init(). While at it, unify naming convention: type_init([$prefix_]register_types) Also, type_init() is a function, so add preceding blank line where necessary and don't put a semicolon after the closing brace. Signed-off-by: Andreas Färber <afaerber@suse.de> Cc: Anthony Liguori <anthony@codemonkey.ws> Cc: malc <av1474@comtv.ru> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* KVM: Fix breakages of QOM conversionJan Kiszka2012-02-062-0/+2
| | | | | | | KVM APIC and PIC require instance sizes. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* qdev: register all types natively through QEMU Object ModelAnthony Liguori2012-02-034-20/+29
| | | | | | | | | | | | | | | | | | | | | This was done in a mostly automated fashion. I did it in three steps and then rebased it into a single step which avoids repeatedly touching every file in the tree. The first step was a sed-based addition of the parent type to the subclass registration functions. The second step was another sed-based removal of subclass registration functions while also adding virtual functions from the base class into a class_init function as appropriate. Finally, a python script was used to convert the DeviceInfo structures and qdev_register_subclass functions to TypeInfo structures, class_init functions, and type_register_static calls. We are almost fully converted to QOM after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* sysbus: apic: ioapic: convert to QEMU Object ModelAnthony Liguori2012-01-273-20/+41
| | | | | | | This converts three devices because apic and ioapic are subclasses of sysbus. Converting subclasses independently of their base class is prohibitively hard. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* isa: pic: convert to QEMU Object ModelAnthony Liguori2012-01-271-6/+13
| | | | | | | This converts two devices at once because PIC subclasses ISA and converting subclasses independently is extremely hard. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* kvm: x86: Add user space part for in-kernel IOAPICJan Kiszka2012-01-191-0/+114
| | | | | | | | | | | | | This introduces the KVM-accelerated IOAPIC model 'kvm-ioapic' and extends the IRQ routing setup by the 0->2 redirection when needed. The kvm-ioapic model has a property that allows to define its GSI base for injecting interrupts into the kernel model. This will allow to disentangle PIC and IOAPIC pins for chipsets that support more sophisticated IRQ routes than the PIIX3. So far the base is kept at 0, i.e. PIC and IOAPIC share pins 0..15. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
* kvm: x86: Add user space part for in-kernel i8259Jan Kiszka2012-01-191-0/+128
| | | | | | | | | | | | | Introduce the alternative 'kvm-i8259' device model that exploits KVM in-kernel acceleration. The PIIX3 initialization code is furthermore extended by KVM specific IRQ route setup. GSI injection differs in KVM mode from the user space model. As we can dispatch ISA-range IRQs to both IOAPIC and PIC inside the kernel, we do not need to inject them separately. This is reflected by a KVM-specific GSI handler. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
* kvm: x86: Add user space part for in-kernel APICJan Kiszka2012-01-191-0/+138
| | | | | | | | | | | | | This introduces the alternative APIC device which makes use of KVM's in-kernel device model. External NMI injection via LINT1 is emulated by checking the current state of the in-kernel APIC, only injecting a NMI into the VCPU if LINT1 is unmasked and configured to DM_NMI. MSI is not yet supported, so we disable this when the in-kernel model is in use. CC: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
* kvm: Move kvmclock into hw/kvm folderJan Kiszka2012-01-192-0/+144
More KVM-specific devices will come, so let's start with moving the kvmclock into a dedicated folder. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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