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Subject[PATCH 00/17] irqfd and ioeventfd support for mshv
Date
This patch series adds irqfd and ioeventfd support for VMMs on Hyper-V.
Also adds support for in-kernel MSI irq routing framework. Both these
features are inspired from the kvm implementation and all credits to kvm
developers.

Patches 1-11 are preparatory patches for enabling irqfd/ioeventfd. Hyper-v
features like ports, connections, doorbell etc needs to be enabled to
implement irqfd and ioeventfd feature.

Patches 12-15 implements irqfd and ioeventfd, and 16 and 17 implements the
in-kernel MSI routing framework.

This patchset is rebased on Nuno's root partition ioctl interface series:
https://lkml.org/lkml/2021/5/28/820
---

Vineeth Pillai (17):
hyperv: Few TLFS definitions
drivers: hv: vmbus: Use TLFS definition for VMBUS_MESSAGE_SINT
acpi: export node_to_pxm
hyperv: Wrapper for setting proximity_domain_info
mshv: SynIC event ring and event flags support
mshv: SynIC port and connection hypercalls
hyperv: Configure SINT for Doorbell
mshv: Port id management
mshv: Doorbell handler in hypercall ISR
mshv: Doorbell register/unregister API
mshv: HvClearVirtualInterrupt hypercall
mshv: Add irqfd support for mshv
mshv: Add ioeventfd support for mshv
mshv: Notifier framework for EOI for level triggered interrupts
mshv: Level-triggered interrupt support for irqfd
mshv: User space controlled MSI irq routing for mshv
mshv: Use in kernel MSI routing for irqfd

arch/x86/hyperv/hv_init.c | 32 +-
arch/x86/hyperv/hv_proc.c | 15 +-
arch/x86/include/asm/hyperv-tlfs.h | 2 +
arch/x86/include/asm/mshyperv.h | 2 +
arch/x86/include/uapi/asm/hyperv-tlfs.h | 2 +
drivers/acpi/numa/srat.c | 1 +
drivers/hv/Kconfig | 1 +
drivers/hv/Makefile | 3 +-
drivers/hv/hv_call.c | 181 ++++++
drivers/hv/hv_eventfd.c | 723 ++++++++++++++++++++++++
drivers/hv/hv_portid_table.c | 83 +++
drivers/hv/hv_synic.c | 383 +++++++++++--
drivers/hv/hyperv_vmbus.h | 2 +-
drivers/hv/mshv.h | 52 ++
drivers/hv/mshv_main.c | 96 +++-
drivers/hv/mshv_msi.c | 128 +++++
include/asm-generic/hyperv-tlfs.h | 106 +++-
include/asm-generic/mshyperv.h | 14 +
include/linux/hyperv.h | 9 -
include/linux/mshv.h | 65 ++-
include/linux/mshv_eventfd.h | 78 +++
include/uapi/asm-generic/hyperv-tlfs.h | 81 +++
include/uapi/linux/mshv.h | 48 ++
23 files changed, 2043 insertions(+), 64 deletions(-)
create mode 100644 drivers/hv/hv_eventfd.c
create mode 100644 drivers/hv/hv_portid_table.c
create mode 100644 drivers/hv/mshv_msi.c
create mode 100644 include/linux/mshv_eventfd.h

--
2.25.1

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