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From: Sunil Muthuswamy <sunilmut@linux.microsoft.com>
To: kys@microsoft.com, haiyangz@microsoft.com,
	sthemmin@microsoft.com, wei.liu@kernel.org, maz@kernel.org,
	decui@microsoft.com, tglx@linutronix.de, mingo@redhat.com,
	bp@alien8.de, hpa@zytor.com, lorenzo.pieralisi@arm.com,
	robh@kernel.org, kw@linux.com, bhelgaas@google.com,
	arnd@arndb.de
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
	linux-hyperv@vger.kernel.org, linux-pci@vger.kernel.org,
	linux-arch@vger.kernel.org,
	Sunil Muthuswamy <sunilmut@microsoft.com>
Subject: [PATCH v6 0/2] PCI: hv: Hyper-V vPCI for arm64
Date: Thu, 18 Nov 2021 00:51:28 -0800	[thread overview]
Message-ID: <1637225490-2213-1-git-send-email-sunilmut@linux.microsoft.com> (raw)

From: Sunil Muthuswamy <sunilmut@microsoft.com>

Current Hyper-V vPCI code only compiles and works for x86. There are some
hardcoded assumptions about the architectural IRQ chip and other arch
defines.

Add support for Hyper-V vPCI for arm64 by first breaking the current hard
coded dependency using a set of new interfaces and implementing those for
x86 first. That is in the first patch. The second patch adds support for
Hyper-V vPCI for arm64 by implementing the above mentioned interfaces. That
is done by introducing a Hyper-V vPCI specific MSI IRQ domain & chip for
allocating SPI vectors.

changes in v1 -> 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

changes in v2 -> v3:
 - Addressed comments from Bjorn Helgaas about patch formatting and
   verbiage
 - Using 'git send-email' to ensure that the patch series is correctly
   threaded. Feedback by Bjorn Helgaas
 - Fixed Hyper-V vPCI build break for module build, reported by Boqun Feng

changes in v3 -> v4:
 - Removed the separate file for IRQ chip that was there in previous
   iterations and moved the IRQ chip implementation to pci-hyperv.c.
   Feedback by Michael Kelley and Marc Zyngier.
 - Addressed various comments from Marc Zyngier about structuring and
   layout.
 - Addressed comment from Marc Zyngier about IRQ affinity and other
   miscellaneous comments.

changes in v4 -> v5:
 - Fixed an issue with picking the right cpu for irq affinity, identified
   by Marc Zyngier.

changes in v5 -> v6:
 - Minor comment updates suggested by Michael Kelley.

Sunil Muthuswamy (2):
  PCI: hv: Make the code arch neutral by adding arch specific interfaces
  arm64: PCI: hv: Add support for Hyper-V vPCI

 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/pci-hyperv.c  | 281 ++++++++++++++++++++++++---
 include/asm-generic/hyperv-tlfs.h    |  33 ----
 7 files changed, 300 insertions(+), 67 deletions(-)


base-commit: fa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf
-- 
2.25.1



             reply	other threads:[~2021-11-18  8:51 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-18  8:51 Sunil Muthuswamy [this message]
2021-11-18  8:51 ` [PATCH v6 1/2] PCI: hv: Make the code arch neutral by adding arch specific interfaces Sunil Muthuswamy
2021-11-18  8:51 ` [PATCH v6 2/2] arm64: PCI: hv: Add support for Hyper-V vPCI Sunil Muthuswamy
2021-11-19 15:47   ` Marc Zyngier
2021-12-14  0:46     ` [EXTERNAL] " Sunil Muthuswamy
2021-12-14 11:40       ` Marc Zyngier
2021-12-15 16:35 ` [PATCH v6 0/2] PCI: hv: Hyper-V vPCI for arm64 Bjorn Helgaas
2021-12-17 18:49   ` [EXTERNAL] " Sunil Muthuswamy

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