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From: Boqun Feng <boqun.feng@gmail.com>
To: Wei Liu <wei.liu@kernel.org>
Cc: linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	linux-scsi@vger.kernel.org,
	"K. Y. Srinivasan" <kys@microsoft.com>,
	Haiyang Zhang <haiyangz@microsoft.com>,
	Stephen Hemminger <sthemmin@microsoft.com>,
	Jiri Kosina <jikos@kernel.org>,
	Benjamin Tissoires <benjamin.tissoires@redhat.com>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Michael Kelley <mikelley@microsoft.com>
Subject: Re: [RFC 01/11] Drivers: hv: vmbus: Always use HV_HYP_PAGE_SIZE for gpadl
Date: Thu, 23 Jul 2020 07:20:35 +0800
Message-ID: <20200722232035.GB35358@debian-boqun.qqnc3lrjykvubdpftowmye0fmh.lx.internal.cloudapp.net> (raw)
In-Reply-To: <20200721152218.ozpk2b4ymfdocu4p@liuwe-devbox-debian-v2>

On Tue, Jul 21, 2020 at 03:22:18PM +0000, Wei Liu wrote:
> On Tue, Jul 21, 2020 at 09:41:25AM +0800, Boqun Feng wrote:
> > Since the hypervisor always uses 4K as its page size, the size of PFNs
> > used for gpadl should be HV_HYP_PAGE_SIZE rather than PAGE_SIZE, so
> > adjust this accordingly as the preparation for supporting 16K/64K page
> > size guests.
> 
> It may be worth calling out there is no change on x86 because
> HV_HYP_PAGE_SHIFT and PAGE_SHIFT are of the same value there.
> 

Sure, I will call it out in the commit log of the next version, thanks!

Regards,
Boqun

> Wei.

  reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-21  1:41 [RFC 00/11] Hyper-V: Support PAGE_SIZE larger than 4K Boqun Feng
2020-07-21  1:41 ` [RFC 01/11] Drivers: hv: vmbus: Always use HV_HYP_PAGE_SIZE for gpadl Boqun Feng
2020-07-21 15:22   ` Wei Liu
2020-07-22 23:20     ` Boqun Feng [this message]
2020-07-21  1:41 ` [RFC 02/11] Drivers: hv: vmbus: Move __vmbus_open() Boqun Feng
2020-07-21 15:23   ` Wei Liu
2020-07-21  1:41 ` [RFC 03/11] Drivers: hv: vmbus: Introduce types of GPADL Boqun Feng
2020-07-22 23:25   ` Michael Kelley
2020-07-22 23:43     ` Boqun Feng
2020-07-22 23:56       ` Michael Kelley
2020-07-21  1:41 ` [RFC 04/11] Drivers: hv: Use HV_HYP_PAGE in hv_synic_enable_regs() Boqun Feng
2020-07-21  1:41 ` [RFC 05/11] Drivers: hv: vmbus: Move virt_to_hvpfn() to hyperv header Boqun Feng
2020-07-21  1:41 ` [RFC 06/11] hv: hyperv.h: Introduce some hvpfn helper functions Boqun Feng
2020-07-21  1:41 ` [RFC 07/11] hv_netvsc: Use HV_HYP_PAGE_SIZE for Hyper-V communication Boqun Feng
2020-07-21  1:41 ` [RFC 08/11] Input: hyperv-keyboard: Make ringbuffer at least take two pages Boqun Feng
2020-07-21  1:41 ` [RFC 09/11] HID: hyperv: " Boqun Feng
2020-07-22 23:36   ` Michael Kelley
2020-07-23  1:28     ` boqun.feng
2020-07-21  1:41 ` [RFC 10/11] Driver: hv: util: " Boqun Feng
2020-07-21  1:41 ` [RFC 11/11] scsi: storvsc: Support PAGE_SIZE larger than 4K Boqun Feng
2020-07-23  0:13   ` Michael Kelley
2020-07-23  1:51     ` boqun.feng
2020-07-23  2:26       ` Michael Kelley
2020-07-23  3:12         ` Boqun Feng

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