From: Christoph Hellwig <hch@lst.de>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tianyu Lan <ltykernel@gmail.com>,
kys@microsoft.com, haiyangz@microsoft.com,
sthemmin@microsoft.com, wei.liu@kernel.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com,
arnd@arndb.de, akpm@linux-foundation.org,
gregkh@linuxfoundation.org, hch@lst.de, m.szyprowski@samsung.com,
robin.murphy@arm.com, joro@8bytes.org, will@kernel.org,
davem@davemloft.net, kuba@kernel.org, jejb@linux.ibm.com,
martin.petersen@oracle.com, Tianyu Lan <Tianyu.Lan@microsoft.com>,
iommu@lists.linux-foundation.org, linux-arch@vger.kernel.org,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-scsi@vger.kernel.org,
netdev@vger.kernel.org, vkuznets@redhat.com,
thomas.lendacky@amd.com, brijesh.singh@amd.com,
sunilmut@microsoft.com
Subject: Re: [Resend RFC PATCH V2 07/12] HV/Vmbus: Initialize VMbus ring buffer for Isolation VM
Date: Mon, 19 Apr 2021 08:36:30 +0200 [thread overview]
Message-ID: <20210419063630.GA18882@lst.de> (raw)
In-Reply-To: <YHig78Xra5tEQhMD@dhcp-10-154-102-149.vpn.oracle.com>
On Thu, Apr 15, 2021 at 04:24:15PM -0400, Konrad Rzeszutek Wilk wrote:
> So you are exposing these two:
> EXPORT_SYMBOL_GPL(get_vm_area);
> EXPORT_SYMBOL_GPL(ioremap_page_range);
>
> But if you used vmap wouldn't you get the same thing for free?
Yes, this needs to go into some vmap version, preferably reusing the
existing code in kernel/dma/remap.c.
Exporting get_vm_area is a complete dealbreaker and not going to happen.
We worked hard on not exposing it to modules.
next prev parent reply other threads:[~2021-04-19 6:36 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-14 14:49 [Resend RFC PATCH V2 00/12] x86/Hyper-V: Add Hyper-V Isolation VM support Tianyu Lan
2021-04-14 14:49 ` [Resend RFC PATCH V2 01/12] x86/HV: Initialize GHCB page in Isolation VM Tianyu Lan
2021-04-14 14:49 ` [Resend RFC PATCH V2 02/12] x86/HV: Initialize shared memory boundary " Tianyu Lan
2021-04-14 14:49 ` [Resend RFC PATCH V2 05/12] HV: Add ghcb hvcall support for SNP VM Tianyu Lan
2021-04-14 14:49 ` [Resend RFC PATCH V2 06/12] HV/Vmbus: Add SNP support for VMbus channel initiate message Tianyu Lan
2021-04-15 18:52 ` Konrad Rzeszutek Wilk
2021-04-14 14:49 ` [Resend RFC PATCH V2 08/12] UIO/Hyper-V: Not load UIO HV driver in the isolation VM Tianyu Lan
2021-04-14 15:42 ` Christoph Hellwig
2021-04-14 15:45 ` Greg KH
2021-04-14 16:17 ` Stephen Hemminger
2021-04-15 12:54 ` Tianyu Lan
2021-04-15 13:09 ` Tianyu Lan
2021-04-14 14:49 ` [Resend RFC PATCH V2 11/12] HV/Netvsc: Add Isolation VM support for netvsc driver Tianyu Lan
2021-04-14 15:50 ` Christoph Hellwig
2021-04-15 8:39 ` Tianyu Lan
2021-04-14 14:49 ` [Resend RFC PATCH V2 12/12] HV/Storvsc: Add Isolation VM support for storvsc driver Tianyu Lan
2021-04-14 15:51 ` Christoph Hellwig
[not found] ` <20210414144945.3460554-4-ltykernel@gmail.com>
2021-04-14 15:40 ` [Resend RFC PATCH V2 03/12] x86/Hyper-V: Add new hvcall guest address host visibility support Christoph Hellwig
2021-04-15 8:13 ` Tianyu Lan
[not found] ` <20210414144945.3460554-5-ltykernel@gmail.com>
2021-04-14 15:41 ` [Resend RFC PATCH V2 04/12] HV: Add Write/Read MSR registers via ghcb Christoph Hellwig
2021-04-15 8:19 ` Tianyu Lan
2021-04-15 18:11 ` Konrad Rzeszutek Wilk
[not found] ` <20210414144945.3460554-11-ltykernel@gmail.com>
2021-04-14 15:47 ` [Resend RFC PATCH V2 10/12] HV/IOMMU: Add Hyper-V dma ops support Christoph Hellwig
2021-05-12 16:01 ` Tianyu Lan
2021-05-12 17:29 ` Robin Murphy
2021-05-13 3:19 ` Lu Baolu
[not found] ` <20210414144945.3460554-8-ltykernel@gmail.com>
2021-04-15 20:24 ` [Resend RFC PATCH V2 07/12] HV/Vmbus: Initialize VMbus ring buffer for Isolation VM Konrad Rzeszutek Wilk
2021-04-19 6:36 ` Christoph Hellwig [this message]
[not found] ` <20210414144945.3460554-10-ltykernel@gmail.com>
2021-04-15 20:28 ` [Resend RFC PATCH V2 09/12] swiotlb: Add bounce buffer remap address setting function Konrad Rzeszutek Wilk
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210419063630.GA18882@lst.de \
--to=hch@lst.de \
--cc=Tianyu.Lan@microsoft.com \
--cc=akpm@linux-foundation.org \
--cc=arnd@arndb.de \
--cc=bp@alien8.de \
--cc=brijesh.singh@amd.com \
--cc=davem@davemloft.net \
--cc=gregkh@linuxfoundation.org \
--cc=haiyangz@microsoft.com \
--cc=hpa@zytor.com \
--cc=iommu@lists.linux-foundation.org \
--cc=jejb@linux.ibm.com \
--cc=joro@8bytes.org \
--cc=konrad.wilk@oracle.com \
--cc=kuba@kernel.org \
--cc=kys@microsoft.com \
--cc=linux-arch@vger.kernel.org \
--cc=linux-hyperv@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-scsi@vger.kernel.org \
--cc=ltykernel@gmail.com \
--cc=m.szyprowski@samsung.com \
--cc=martin.petersen@oracle.com \
--cc=mingo@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=robin.murphy@arm.com \
--cc=sthemmin@microsoft.com \
--cc=sunilmut@microsoft.com \
--cc=tglx@linutronix.de \
--cc=thomas.lendacky@amd.com \
--cc=vkuznets@redhat.com \
--cc=wei.liu@kernel.org \
--cc=will@kernel.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).