linux-kernel - RE: [PATCH v8 1/2] PCI: hv: Make the code arch neutral by adding arch specific interfaces

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Date:   Thu, 6 Jan 2022 04:02:50 +0000
From:   "Michael Kelley (LINUX)" <mikelley@...rosoft.com>
To:     Sunil Muthuswamy <sunilmut@...ux.microsoft.com>,
        KY Srinivasan <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        "maz@...nel.org" <maz@...nel.org>,
        Dexuan Cui <decui@...rosoft.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>, "hpa@...or.com" <hpa@...or.com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "robh@...nel.org" <robh@...nel.org>, "kw@...ux.com" <kw@...ux.com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "arnd@...db.de" <arnd@...db.de>
CC:     "x86@...nel.org" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
        Sunil Muthuswamy <sunilmut@...rosoft.com>
Subject: RE: [PATCH v8 1/2] PCI: hv: Make the code arch neutral by adding arch
 specific interfaces

From: Sunil Muthuswamy <sunilmut@...ux.microsoft.com> Sent: Wednesday, January 5, 2022 11:33 AM
> 
> Encapsulate arch dependencies in Hyper-V vPCI through a set of
> arch-dependent interfaces. Adding these arch specific interfaces will
> allow for an implementation for other architectures, such as arm64.
> 
> There are no functional changes expected from this patch.
> 
> Signed-off-by: Sunil Muthuswamy <sunilmut@...rosoft.com>
> Reviewed-by: Boqun Feng <boqun.feng@...il.com>
> Reviewed-by: Marc Zyngier <maz@...nel.org>
> ---
> In v2, v3, v4, v5, v6, v7 & v8:
>  Changes are described in the cover letter. No changes from v4 -> v5,
>  v6 -> v7 or v7 -> v8.
> 
>  arch/x86/include/asm/hyperv-tlfs.h  | 33 ++++++++++++
>  arch/x86/include/asm/mshyperv.h     |  7 ---
>  drivers/pci/controller/pci-hyperv.c | 79 ++++++++++++++++++++---------
>  include/asm-generic/hyperv-tlfs.h   | 33 ------------
>  4 files changed, 87 insertions(+), 65 deletions(-)
> 

Reviewed-by: Michael Kelley <mikelley@...rosoft.com>