On Mon, May 13, 2019 at 10:42:31AM +0200, Cédric Le Goater wrote:
> Hello,
>
> This is the v4 of the QEMU/KVM patchset.
>
> The first patches introduce the XIVE KVM device, state synchronization
> and migration support under KVM. The second part of the patchset
> modifies the XICS and XIVE interrupt models to add KVM support to the
> 'dual' IRQ backend.
Ok, I've applied this to my tree, and I'm prepping for a pull request
right now.
>
> GitHub trees available here :
>
> QEMU sPAPR:
>
> https://github.com/legoater/qemu/commits/xive-next
>
> Linux/KVM:
>
> https://github.com/legoater/linux/commits/xive-5.1
>
> Thanks,
>
> C.
>
> Changes since v3:
>
> - updates of the kvm headers are synced with commit 0caecf5b0019
> (kvm-ppc-next-5.2-1) in branch kvm-ppc-next. will conflict with
> kvm-arm.
> - added usage of xive_end_qaddr() helper
> - removed KVM_DESTROY_DEVICE control. KVM device is destroyed when
> the fd is closed.
> - update in kvmppc_xive_source_reset_one()
> - introduced a 'init' boolean under ICSState
> - removed extra spapr_irq_init_device() in spapr_irq_init_xive()
> - reworked slightly the code sequence in xics_kvm_init() creating the
> presenters and connecting them to the KVM XICS device.
>
> Changes since v2:
>
> - update linux headers to 5.1-rc1
> - rebased on new naming scheme
> - rebased on new configuration system
> - replaced error_report_err() by warn_report_err()
> - added an assert() in spapr_xive_end_to_target()
> - moved xive_end_is_valid() check out of kvmppc_xive_set_queue_config()
> - dealt with MASKED EAS
> - reworked ESB memory operations
> - improved KVM_XIVE_EQ_ALWAYS_NOTIFY handling
> - removed the capture of the OS CAM line value from KVM
> - merged in the handling of pending interrupts while the VM is stopped.
> - did an update in ics_set_kvm_state_one()
> - removed spapr_ics_create()
> - introduced a spapr_irq_init_device() helper
> - reworked test on single initialization of the emulated IRQ device
>
> Changes since v1:
>
> - Reworked most of the KVM interface
> - Reworked *All* hcalls which are now handled at the QEMU level,
> possibly extended with a KVM device ioctl when required.
> - TIMA and ESB special mapping done on the KVM device fd.
> - Tested on nested
> - Implemented the device fallback mode when a kernel_irqchip is not
> available and not required. Useful on nested to use XIVE.
> - Fix device hotplug when VM is stopped (Is this necessary ?)
>
>
> Cédric Le Goater (14):
> linux-headers: update linux headers to kvm-ppc-next-5.2-1
> spapr/xive: add KVM support
> spapr/xive: add hcall support when under KVM
> spapr/xive: add state synchronization with KVM
> spapr/xive: introduce a VM state change handler
> spapr/xive: add migration support for KVM
> spapr/xive: activate KVM support
> sysbus: add a sysbus_mmio_unmap() helper
> spapr: introduce routines to delete the KVM IRQ device
> spapr: check for the activation of the KVM IRQ device
> spapr/irq: introduce a spapr_irq_init_device() helper
> spapr/irq: initialize the IRQ device only once
> ppc/xics: fix irq priority in ics_set_irq_type()
> spapr/irq: add KVM support to the 'dual' machine
>
> include/hw/ppc/spapr_irq.h | 2 +
> include/hw/ppc/spapr_xive.h | 39 ++
> include/hw/ppc/xics.h | 1 +
> include/hw/ppc/xics_spapr.h | 1 +
> include/hw/ppc/xive.h | 14 +
> include/hw/sysbus.h | 1 +
> linux-headers/asm-powerpc/kvm.h | 46 ++
> linux-headers/linux/kvm.h | 3 +
> target/ppc/kvm_ppc.h | 6 +
> hw/core/sysbus.c | 10 +
> hw/intc/spapr_xive.c | 172 ++++++-
> hw/intc/spapr_xive_kvm.c | 827 ++++++++++++++++++++++++++++++++
> hw/intc/xics.c | 10 +-
> hw/intc/xics_kvm.c | 113 ++++-
> hw/intc/xics_spapr.c | 7 +
> hw/intc/xive.c | 44 +-
> hw/ppc/spapr_irq.c | 140 ++++--
> target/ppc/kvm.c | 7 +
> hw/intc/Makefile.objs | 1 +
> hw/ppc/Kconfig | 5 +
> 20 files changed, 1384 insertions(+), 65 deletions(-)
> create mode 100644 hw/intc/spapr_xive_kvm.c
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson