From: Avi Kivity <avi@redhat.com>
To: Christoffer Dall <cdall@cs.columbia.edu>
Cc: catalin.marinas@arm.com, android-virt@lists.cs.columbia.edu,
s.raho@virtualopensystems.com, a.motakis@virtualopensystems.com,
kvm@vger.kernel.org, a.costa@virtualopensystems.com
Subject: Re: [PATCH v3 7/8] ARM: KVM: Handle guest faults in KVM
Date: Sun, 12 Jun 2011 11:24:07 +0300 [thread overview]
Message-ID: <4DF477A7.30300@redhat.com> (raw)
In-Reply-To: <BANLkTimd2mCu2htV8aDZQGtkvLDTK5__ew@mail.gmail.com>
On 06/11/2011 01:37 PM, Christoffer Dall wrote:
> >
> > Okay, this is about a zillion times simpler than x86. Congratulations.
>
> Well, I need to handle the I/O aborts, but it's quite simple. What
> makes it much more complicated on x86?
- lack of nested paging on earlier processors
- 97 different paging modes
- lots of extra bits bringing in wierd functionality
- lots of optimizations
> >
> > What are your thoughts about mmu notifier support?
>
> For what purpose? There is no swapping on ARM, so only case that jumps
> to my mind is for KSM. And I'm not quite there yet :)
Really? I imaging swapping will be needed for server workloads. mmu
notifiers are also useful for transparent hugepages and page
migrations. I imagine these will all follow if ARM servers take off.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-06-12 8:24 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-03 15:03 [PATCH v3 1/8] ARM: KVM: Initial skeleton to compile KVM support Christoffer Dall
2011-06-03 15:03 ` [PATCH v3 2/8] ARM: KVM: Hypervisor identity mapping Christoffer Dall
2011-06-03 15:03 ` [PATCH v3 3/8] ARM: KVM: Add hypervisor inititalization Christoffer Dall
2011-06-03 15:03 ` [PATCH v3 4/8] ARM: KVM: Memory virtualization setup Christoffer Dall
2011-06-05 12:41 ` Avi Kivity
2011-06-05 14:50 ` Christoffer Dall
2011-06-05 14:53 ` Avi Kivity
2011-06-05 15:14 ` Avi Kivity
2011-06-05 15:27 ` Christoffer Dall
2011-06-05 16:02 ` Avi Kivity
2011-06-03 15:03 ` [PATCH v3 5/8] ARM: KVM: World-switch implementation Christoffer Dall
2011-06-03 15:04 ` [PATCH v3 6/8] ARM: KVM: Emulation framework and CP15 emulation Christoffer Dall
2011-06-03 15:04 ` [PATCH v3 7/8] ARM: KVM: Handle guest faults in KVM Christoffer Dall
2011-06-05 12:48 ` Avi Kivity
2011-06-11 10:37 ` Christoffer Dall
2011-06-12 8:24 ` Avi Kivity [this message]
2011-06-12 8:57 ` Christoffer Dall
2011-06-03 15:04 ` [PATCH v3 8/8] ARM: KVM: Handle I/O aborts Christoffer Dall
2011-06-03 15:31 ` [PATCH v3 1/8] ARM: KVM: Initial skeleton to compile KVM support Jan Kiszka
2011-06-03 15:53 ` Jan Kiszka
2011-06-03 16:19 ` Christoffer Dall
2011-06-03 16:31 ` [Android-virt] " Alexander Graf
2011-06-04 14:13 ` Alexander Graf
2011-06-05 12:21 ` Avi Kivity
2011-06-05 14:13 ` Jan Kiszka
2011-06-05 14:18 ` Avi Kivity
2011-06-05 14:58 ` Jan Kiszka
2011-06-05 15:10 ` Avi Kivity
2011-06-05 15:14 ` Jan Kiszka
2011-06-05 15:18 ` Avi Kivity
2011-06-05 16:25 ` Christoffer Dall
2011-06-05 16:28 ` Avi Kivity
2011-06-05 16:30 ` [Android-virt] " Alexander Graf
2011-06-05 16:33 ` Avi Kivity
2011-06-05 17:19 ` Alexander Graf
2011-06-05 17:48 ` Jan Kiszka
2011-06-05 17:54 ` Alexander Graf
2011-06-05 17:56 ` Jan Kiszka
2011-06-05 18:00 ` Alexander Graf
2011-06-05 18:04 ` Jan Kiszka
2011-06-05 18:12 ` Alexander Graf
2011-06-05 18:19 ` Jan Kiszka
2011-06-06 7:42 ` Avi Kivity
2011-06-06 7:41 ` Avi Kivity
2011-06-05 16:24 ` Christoffer Dall
2011-06-05 16:31 ` Avi Kivity
2011-06-05 12:36 ` Avi Kivity
2011-06-05 16:03 ` Christoffer Dall
2011-06-05 16:06 ` Avi Kivity
[not found] ` <211B3F42-9B68-41BB-B1FA-348B5500C60A@suse.de>
2011-06-10 8:40 ` [Android-virt] " Christoffer Dall
2011-06-10 9:23 ` Catalin Marinas
2011-06-10 9:53 ` Alexander Graf
2011-06-10 9:58 ` Catalin Marinas
2011-06-10 11:56 ` Christoffer Dall
2011-06-05 12:52 ` Avi Kivity
2011-06-05 14:00 ` Avi Kivity
2011-06-05 14:13 ` Christoffer Dall
2011-06-05 14:18 ` Avi Kivity
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