* [PATCH 0/2] PCI: hv: Hyper-V vPCI for ARM64
@ 2021-09-13 17:35 Sunil Muthuswamy
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From: Sunil Muthuswamy @ 2021-09-13 17:35 UTC (permalink / raw)
To: Michael Kelley, Boqun Feng, KY Srinivasan, Haiyang Zhang,
Stephen Hemminger, Dexuan Cui, Lorenzo Pieralisi, Rob Herring,
"Krzysztof Wilczyński",
Bjorn Helgaas, Wei Liu
Cc: linux-hyperv, linux-pci, linux-kernel
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.
This patch depends on two other independent patch sets. First one
is the patch series from Michael Kelley titled:
"Enable Linux guests on Hyper-V on ARM64"
and the second one is from Boqun Feng titled:
"PCI: hv: Support host bridge probing on ARM64". Neither of these
patches are merged into one branch at the moment. I think its best
to carry this patch with the 'hyperv-next' tree after merging Boqun's
patch series.
Sunil Muthuswamy (2):
PCI: hv: Make the code arch neutral
PCI: hv: Support for Hyper-V vPCI for ARM64
arch/arm64/hyperv/Makefile | 2 +-
arch/arm64/hyperv/hv_pci.c | 275 +++++++++++++++++++++++++++
arch/arm64/include/asm/hyperv-tlfs.h | 9 +
arch/arm64/include/asm/mshyperv.h | 26 +++
arch/x86/include/asm/hyperv-tlfs.h | 33 ++++
arch/x86/include/asm/mshyperv.h | 25 +++
drivers/pci/Kconfig | 2 +-
drivers/pci/controller/Kconfig | 2 +-
drivers/pci/controller/pci-hyperv.c | 49 +++--
include/asm-generic/hyperv-tlfs.h | 33 ----
10 files changed, 405 insertions(+), 51 deletions(-)
create mode 100644 arch/arm64/hyperv/hv_pci.c
--
2.25.1
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