From: Wei Liu <wei.liu@kernel.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Tianyu Lan <ltykernel@gmail.com>,
kys@microsoft.com, haiyangz@microsoft.com,
sthemmin@microsoft.com, wei.liu@kernel.org, decui@microsoft.com,
tglx@linutronix.de, mingo@redhat.com,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
davem@davemloft.net, kuba@kernel.org, jejb@linux.ibm.com,
martin.petersen@oracle.com, arnd@arndb.de, hch@infradead.org,
m.szyprowski@samsung.com, robin.murphy@arm.com,
thomas.lendacky@amd.com, Tianyu.Lan@microsoft.com,
michael.h.kelley@microsoft.com, iommu@lists.linux-foundation.org,
linux-arch@vger.kernel.org, linux-hyperv@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
netdev@vger.kernel.org, vkuznets@redhat.com,
brijesh.singh@amd.com, konrad.wilk@oracle.com, hch@lst.de,
joro@8bytes.org, parri.andrea@gmail.com, dave.hansen@intel.com
Subject: Re: [PATCH V7 2/5] x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has()
Date: Tue, 14 Dec 2021 16:10:04 +0000 [thread overview]
Message-ID: <20211214161004.6ofxl5ko43myn76o@liuwe-devbox-debian-v2> (raw)
In-Reply-To: <YbjArUL+biZMsFOL@zn.tnic>
On Tue, Dec 14, 2021 at 05:05:01PM +0100, Borislav Petkov wrote:
> On Mon, Dec 13, 2021 at 02:14:03AM -0500, Tianyu Lan wrote:
> > From: Tianyu Lan <Tianyu.Lan@microsoft.com>
> >
> > Hyper-V provides Isolation VM for confidential computing support and
> > guest memory is encrypted in it. Places checking cc_platform_has()
> > with GUEST_MEM_ENCRYPT attr should return "True" in Isolation vm. e.g,
>
> Stick to a single spelling variant: "VM".
>
> > swiotlb bounce buffer size needs to adjust according to memory size
> > in the sev_setup_arch().
>
> So basically you wanna simply say here:
>
> "Hyper-V Isolation VMs need to adjust the SWIOTLB size just like SEV
> guests. Add a hyperv_cc_platform_has() variant which enables that."
>
> ?
>
> With that addressed you can have my
>
> Acked-by: Borislav Petkov <bp@suse.de>
Thanks. I can address your comments when I pick up this series.
Wei.
>
> Thx.
>
> --
> Regards/Gruss,
> Boris.
>
> https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2021-12-14 16:10 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-13 7:14 [PATCH V7 0/5] x86/Hyper-V: Add Hyper-V Isolation VM support(Second part) Tianyu Lan
2021-12-13 7:14 ` [PATCH V7 1/5] swiotlb: Add swiotlb bounce buffer remap function for HV IVM Tianyu Lan
2021-12-13 16:45 ` Dave Hansen
2021-12-14 4:36 ` Tianyu Lan
2021-12-14 18:40 ` Dave Hansen
2021-12-14 22:23 ` Tom Lendacky
2021-12-14 22:40 ` Dave Hansen
2021-12-15 5:00 ` Tianyu Lan
2021-12-16 11:05 ` Wei Liu
2021-12-13 7:14 ` [PATCH V7 2/5] x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has() Tianyu Lan
2021-12-14 15:33 ` Wei Liu
2021-12-14 16:05 ` Borislav Petkov
2021-12-14 16:10 ` Wei Liu [this message]
2021-12-13 7:14 ` [PATCH V7 3/5] hyper-v: Enable swiotlb bounce buffer for Isolation VM Tianyu Lan
2021-12-13 7:14 ` [PATCH V7 4/5] scsi: storvsc: Add Isolation VM support for storvsc driver Tianyu Lan
2021-12-15 19:19 ` Long Li
2022-02-03 23:53 ` Jakub Kicinski
2022-02-04 2:55 ` Jakub Kicinski
2021-12-13 7:14 ` [PATCH V7 5/5] net: netvsc: Add Isolation VM support for netvsc driver Tianyu Lan
2021-12-13 16:56 ` Haiyang Zhang
2021-12-14 18:35 ` [PATCH V7 0/5] x86/Hyper-V: Add Hyper-V Isolation VM support(Second part) Michael Kelley (LINUX)
2021-12-17 18:02 ` Wei Liu
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=20211214161004.6ofxl5ko43myn76o@liuwe-devbox-debian-v2 \
--to=wei.liu@kernel.org \
--cc=Tianyu.Lan@microsoft.com \
--cc=arnd@arndb.de \
--cc=bp@alien8.de \
--cc=brijesh.singh@amd.com \
--cc=dave.hansen@intel.com \
--cc=dave.hansen@linux.intel.com \
--cc=davem@davemloft.net \
--cc=decui@microsoft.com \
--cc=haiyangz@microsoft.com \
--cc=hch@infradead.org \
--cc=hch@lst.de \
--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-scsi@vger.kernel.org \
--cc=ltykernel@gmail.com \
--cc=m.szyprowski@samsung.com \
--cc=martin.petersen@oracle.com \
--cc=michael.h.kelley@microsoft.com \
--cc=mingo@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=parri.andrea@gmail.com \
--cc=robin.murphy@arm.com \
--cc=sthemmin@microsoft.com \
--cc=tglx@linutronix.de \
--cc=thomas.lendacky@amd.com \
--cc=vkuznets@redhat.com \
--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).