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[Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger on
From: |
Glauber Costa |
Subject: |
[Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one |
Date: |
Wed, 11 Feb 2009 12:59:15 -0200 |
User-agent: |
Mutt/1.5.18 (2008-05-17) |
> >
> > Now, if you remember the last memory patches I sent, it actually removes
> > this line. However, this is because in that alternative, we were tracking
> > mmio regions in qemu, but not in kvm. so flags >= TLB_MMIO would just
> > delete it from the kernel mapping, but qemu would not forget about it.
> >
> > This is to show that I believe that it might be possible to handle mmio
> > regions slightly different, but I don't think just dropping this line would
> > help much.
>
> What confused me most here - and still does - is that TLB_* flags make
> semantically no sense to me in the physical memory
> registering/unregistering context. They should only show up in
> CPUTLBEntry, no? But maybe I'm overseeing some strange relation.
>
I might be wrong, but I believe it's used quite often in normal memory
to track pieces of memory in which we do mmio.
- [Qemu-devel] [PATCH] remove smaller slots if registering a bigger one, Glauber Costa, 2009/02/11
- [Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one, Jan Kiszka, 2009/02/11
- [Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one, Glauber Costa, 2009/02/11
- [Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one, Jan Kiszka, 2009/02/11
- [Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one, Jan Kiszka, 2009/02/11
- [Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one,
Glauber Costa <=
- Re: [Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one, Avi Kivity, 2009/02/11
- [Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one, Jan Kiszka, 2009/02/11
- Re: [Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one, Avi Kivity, 2009/02/11
Re: [Qemu-devel] Re: [PATCH] remove smaller slots if registering a bigger one, Avi Kivity, 2009/02/11