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path: root/hw/misc/vfio.c
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2013-08-29Merge remote-tracking branch 'qemu-kvm/uq/master' into stable-1.5Anthony Liguori
* qemu-kvm/uq/master: kvm-stub: fix compilation kvm: shorten the parameter list for get_real_device() kvm: i386: fix LAPIC TSC deadline timer save/restore kvm-all.c: max_cpus should not exceed KVM vcpu limit kvm: Simplify kvm_handle_io kvm: x86: fix setting IA32_FEATURE_CONTROL with nested VMX disabled kvm: add KVM_IRQFD_FLAG_RESAMPLE support kvm: migrate vPMU state target-i386: remove tabs from target-i386/cpu.h Initialize IA32_FEATURE_CONTROL MSR in reset and migration Conflicts: target-i386/cpu.h target-i386/kvm.c aliguori: fixup trivial conflicts due to whitespace and added cpu argument Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-08-22aio / timers: Switch entire codebase to the new timer APIAlex Bligh
This is an autogenerated patch using scripts/switch-timer-api. Switch the entire code base to using the new timer API. Note this patch may introduce some line length issues. Signed-off-by: Alex Bligh <alex@alex.org.uk> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-09kvm: add KVM_IRQFD_FLAG_RESAMPLE supportVincenzo Maffione
Added an EventNotifier* parameter to kvm-all.c:kvm_irqchip_add_irqfd_notifier(), in order to give KVM another eventfd to be used as "resamplefd". See the documentation in the linux kernel sources in Documentation/virtual/kvm/api.txt (section 4.75) for more details. When the added parameter is passed NULL, the behaviour of the function is unchanged with respect to the previous versions. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-29devices: Associate devices to their logical categoryMarcel Apfelbaum
The category will be used to sort the devices displayed in the command line help. Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com> Message-id: 1375107465-25767-4-git-send-email-marcel.a@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-15vfio: QEMU-AER: Qemu changes to support AER for VFIO-PCI devicesVijay Mohan Pandarathil
Add support for error containment when a VFIO device assigned to a KVM guest encounters an error. This is for PCIe devices/drivers that support AER functionality. When the host OS is notified of an error in a device either through the firmware first approach or through an interrupt handled by the AER root port driver, the error handler registered by the vfio-pci driver gets invoked. The qemu process is signaled through an eventfd registered per VFIO device by the qemu process. In the eventfd handler, qemu decides on what action to take. In this implementation, guest is brought down to contain the error. The kernel patches for the above functionality has been already accepted. This is a refresh of the QEMU patch which was reviewed earlier. http://marc.info/?l=linux-kernel&m=136281557608087&w=2 This patch has the same contents and has been built after refreshing to latest upstream and after the linux headers have been updated in qemu. - Create eventfd per vfio device assigned to a guest and register an event handler - This fd is passed to the vfio_pci driver through the SET_IRQ ioctl - When the device encounters an error, the eventfd is signalled and the qemu eventfd handler gets invoked. - In the handler decide what action to take. Current action taken is to stop the guest. Signed-off-by: Vijay Mohan Pandarathil <vijaymohan.pandarathil@hp.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-07-15vfio-pci: VGA quirk updateAlex Williamson
Turns out all the suspicions for AMD devices were correct, everywhere we read a BAR address that the address matches the config space offset, there's full access to PCI config space. Attempt to generalize some helpers to allow quirks to easily be added for mirrors and windows. Also fill in complete config space for AMD. Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-07-04hw/m*: pass owner to memory_region_init* functionsPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04vfio: pass device to vfio_mmap_bar and use it to set ownerPaolo Bonzini
Cc: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04memory: add ref/unref callsPaolo Bonzini
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: add owner argument to initialization functionsPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20vfio: abort if an emulated iommu is usedAvi Kivity
vfio doesn't support guest iommus yet, indicate it to the user by gently depositing a core on their disk. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Avi Kivity <avi.kivity@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20memory: make section size a 128-bit integerPaolo Bonzini
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>
2013-04-08hw: move VFIO and ivshmem to hw/misc/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>