linux-kernel - [PATCH v3 0/3] PCI: hv: Generify pci-hyperv.c

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Message-Id: <20200210033953.99692-1-boqun.feng@gmail.com>
Date:   Mon, 10 Feb 2020 11:39:50 +0800
From:   Boqun Feng <boqun.feng@...il.com>
To:     linux-pci@...r.kernel.org, linux-hyperv@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Michael Kelley <mikelley@...rosoft.com>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Sasha Levin <sashal@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Andrew Murray <andrew.murray@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Boqun Feng <boqun.feng@...il.com>
Subject: [PATCH v3 0/3] PCI: hv: Generify pci-hyperv.c

Hi,

This is the first part for virtual PCI support of Hyper-V guest on
ARM64. The whole patchset doesn't have any functional change, but only
refactors the pci-hyperv.c code to make it more arch-independent.

Previous version:
v1: https://lore.kernel.org/lkml/20200121015713.69691-1-boqun.feng@gmail.com/
v2: https://lore.kernel.org/linux-arm-kernel/20200203050313.69247-1-boqun.feng@gmail.com/

Changes since v2:

*	Rebased on 5.6-rc1

*	Reword commit logs as per Andrew's suggestion.

*	It makes more sense to have a generic interface to set the whole
	msi_entry rather than only the "address" field. So change
	hv_set_msi_address_from_desc() to hv_set_msi_entry_from_desc().
	Additionally, make it an inline function as per the suggestion
	of Andrew and Thomas.

*	Add the missing comment saying the partition_id of
	hv_retarget_device_interrupt must be self.

*	Add the explanation for why "__packed" is needed for TLFS
	structures.

I've done compile and boot test of this patchset, also done some tests
with a pass-through NVMe device.

Suggestions and comments are welcome!

Regards,
Boqun

Boqun Feng (3):
  PCI: hv: Move hypercall related definitions into tlfs header
  PCI: hv: Move retarget related structures into tlfs header
  PCI: hv: Introduce hv_msi_entry

 arch/x86/include/asm/hyperv-tlfs.h  | 41 +++++++++++++++++++++++++++
 arch/x86/include/asm/mshyperv.h     |  8 ++++++
 drivers/pci/controller/pci-hyperv.c | 43 ++---------------------------
 3 files changed, 52 insertions(+), 40 deletions(-)

-- 
2.24.1