Re: [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Subject: Re: [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function
From: Christoph Hellwig <hch@xxxxxx>
Date: Mon, 14 Jun 2021 09:12:23 +0200
Cc: Christoph Hellwig <hch@xxxxxx>, kys@xxxxxxxxxxxxx, haiyangz@xxxxxxxxxxxxx, sthemmin@xxxxxxxxxxxxx, wei.liu@xxxxxxxxxx, decui@xxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, mingo@xxxxxxxxxx, bp@xxxxxxxxx, x86@xxxxxxxxxx, hpa@xxxxxxxxx, arnd@xxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, luto@xxxxxxxxxx, peterz@xxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, kirill.shutemov@xxxxxxxxxxxxxxx, rppt@xxxxxxxxxx, hannes@xxxxxxxxxxx, cai@xxxxxx, krish.sadhukhan@xxxxxxxxxx, saravanand@xxxxxx, Tianyu.Lan@xxxxxxxxxxxxx, konrad.wilk@xxxxxxxxxx, m.szyprowski@xxxxxxxxxxx, robin.murphy@xxxxxxx, boris.ostrovsky@xxxxxxxxxx, jgross@xxxxxxxx, sstabellini@xxxxxxxxxx, joro@xxxxxxxxxx, will@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, davem@xxxxxxxxxxxxx, kuba@xxxxxxxxxx, jejb@xxxxxxxxxxxxx, martin.petersen@xxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, vkuznets@xxxxxxxxxx, thomas.lendacky@xxxxxxx, brijesh.singh@xxxxxxx, sunilmut@xxxxxxxxxxxxx
In-reply-to: <48516ce3-564c-419e-b355-0ce53794dcb1@gmail.com>
User-agent: Mutt/1.5.17 (2007-11-01)

On Mon, Jun 07, 2021 at 10:56:47PM +0800, Tianyu Lan wrote:
> These addresses in extra address space works as system memory mirror. The 
> shared memory with host in Isolation VM needs to be accessed via extra 
> address space which is above shared gpa boundary.

Why?

Follow-Ups:
- Re: [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function
  - From: Tianyu Lan
- Re: [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function
  - From: Tom Lendacky

References:
- [RFC PATCH V3 00/11] x86/Hyper-V: Add Hyper-V Isolation VM support
  - From: Tianyu Lan
- [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function
  - From: Tianyu Lan
- Re: [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function
  - From: Christoph Hellwig
- Re: [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function
  - From: Tianyu Lan

Prev by Date: Re: [RFC PATCH V3 10/11] HV/Netvsc: Add Isolation VM support for netvsc driver
Next by Date: Re: vmemmap alloc failure in hot_add_req()
Previous by thread: Re: [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function
Next by thread: Re: [RFC PATCH V3 08/11] swiotlb: Add bounce buffer remap address setting function
Index(es):
- Date
- Thread

[Index of Archives] [Linux Samsung SoC] [Linux Rockchip SoC] [Linux Actions SoC] [Linux for Synopsys ARC Processors] [Linux NFS] [Linux NILFS] [Linux USB Devel] [Video for Linux] [Linux Audio Users] [Yosemite News] [Linux Kernel] [Linux SCSI]