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Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO
From: |
Ian Jackson |
Subject: |
Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO |
Date: |
Mon, 22 Dec 2008 16:44:30 +0000 |
Avi Kivity writes ("[Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for
direct IO"):
> Newer Xen shouldn't have this problem though; it runs qemu in kernel
> mode in a dedicated 64-bit domain.
This is not yet the default configuration and there are still various
reasons why you might not want to use it. I expect we'll retain the
dom0 user process option for a while yet.
I think there is continued value in being able to emulate a guest
whose physical address space exceeds the virtual address space in the
host. The whole assumption that all guest accessible RAM is mapped at
once, contiguously, is I think wrong.
Ian.
- Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, (continued)
- Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Jamie Lokier, 2008/12/14
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Andrea Arcangeli, 2008/12/13
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Anthony Liguori, 2008/12/13
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Andrea Arcangeli, 2008/12/13
- Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Andreas Färber, 2008/12/13
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Anthony Liguori, 2008/12/13
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Andrea Arcangeli, 2008/12/14
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Avi Kivity, 2008/12/14
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Andrea Arcangeli, 2008/12/14
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Avi Kivity, 2008/12/14
- Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO,
Ian Jackson <=
- Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Avi Kivity, 2008/12/22
- Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Avi Kivity, 2008/12/22
- Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Thiemo Seufer, 2008/12/22
- Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Andrea Arcangeli, 2008/12/22
- Re: [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Avi Kivity, 2008/12/23
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Anthony Liguori, 2008/12/13
- [Qemu-devel] Re: [PATCH 2 of 5] add can_dma/post_dma for direct IO, Avi Kivity, 2008/12/14
[Qemu-devel] [PATCH 4 of 5] dma api, Andrea Arcangeli, 2008/12/12
[Qemu-devel] [PATCH 1 of 5] fix cpu_physical_memory len, Andrea Arcangeli, 2008/12/12