[PATCH v2 0/2] PCI: hv: Hyper-V vPCI for ARM64

From: Sunil Muthuswamy
Date: Fri Oct 08 2021 - 13:20:01 EST


Current Hyper-V vPCI code only compiles and works for x64. There are
some hardcoded assumptions about the architectural IRQ chip and other
arch defines.

This patch series adds support for Hyper-V vPCI for ARM64 by first
breaking the current hard coded dependency in the vPCI code and
making it arch neutral. That is in the first patch. The second
patch introduces a Hyper-V vPCI MSI IRQ chip for allocating SPI
vectors.

changes in v2:
- Moved the irqchip implementation to drivers/pci as suggested
by Marc Zyngier
- Addressed Multi-MSI handling issues identified by Marc Zyngier
- Addressed lock/synchronization primitive as suggested by Marc
Zyngier
- Addressed other code feedback from Marc Zyngier

Sunil Muthuswamy (2):
PCI: hv: Make the code arch neutral
PCI: hv: Support for Hyper-V vPCI for ARM64

MAINTAINERS | 2 +
arch/arm64/include/asm/hyperv-tlfs.h | 9 +
arch/x86/include/asm/hyperv-tlfs.h | 33 +++
arch/x86/include/asm/mshyperv.h | 7 -
drivers/pci/Kconfig | 2 +-
drivers/pci/controller/Kconfig | 2 +-
drivers/pci/controller/Makefile | 2 +-
drivers/pci/controller/pci-hyperv-irqchip.c | 256 ++++++++++++++++++++
drivers/pci/controller/pci-hyperv-irqchip.h | 21 ++
drivers/pci/controller/pci-hyperv.c | 58 +++--
include/asm-generic/hyperv-tlfs.h | 33 ---
11 files changed, 363 insertions(+), 62 deletions(-)
create mode 100644 drivers/pci/controller/pci-hyperv-irqchip.c
create mode 100644 drivers/pci/controller/pci-hyperv-irqchip.h


base-commit: e4e737bb5c170df6135a127739a9e6148ee3da82
--
2.25.1