On Thu, 2011-12-01 at 15:10 +, Catalin Marinas wrote:
> On Thu, Dec 01, 2011 at 10:26:37AM +, Ian Campbell wrote:
> > On Wed, 2011-11-30 at 18:32 +, Stefano Stabellini wrote:
> > > On Wed, 30 Nov 2011, Arnd Bergmann wrote:
> > > > KVM and Xen at least both fall into the single-return-va
On Wed, 2011-11-30 at 18:15 +, Arnd Bergmann wrote:
> On Wednesday 30 November 2011, Ian Campbell wrote:
> > On Wed, 2011-11-30 at 14:32 +, Arnd Bergmann wrote:
> > > On Wednesday 30 November 2011, Ian Campbell wrote:
> > > What I suggested to the KVM developers is to start out with the
> >
On Wed, 2011-11-30 at 18:32 +, Stefano Stabellini wrote:
> On Wed, 30 Nov 2011, Arnd Bergmann wrote:
>
> > KVM and Xen at least both fall into the single-return-value category,
> > so we should be able to agree on a calling conventions. KVM does not
> > have an hcall API on ARM yet, and I see
On Thu, Dec 01, 2011 at 04:44:40PM +, Arnd Bergmann wrote:
> On Thursday 01 December 2011, Catalin Marinas wrote:
> > On Thu, Dec 01, 2011 at 03:42:19PM +, Arnd Bergmann wrote:
> > > On Thursday 01 December 2011, Catalin Marinas wrote:
> > > How do you deal with signed integer arguments pas
On Thursday 01 December 2011, Catalin Marinas wrote:
> On Thu, Dec 01, 2011 at 03:42:19PM +, Arnd Bergmann wrote:
> > On Thursday 01 December 2011, Catalin Marinas wrote:
> > How do you deal with signed integer arguments passed into SVC or HVC from
> > a caller? If I understand the architecture
On Thu, Dec 01, 2011 at 03:42:19PM +, Arnd Bergmann wrote:
> On Thursday 01 December 2011, Catalin Marinas wrote:
> > Given the way register banking is done on AArch64, issuing an HVC on a
> > 32-bit guest OS doesn't require translation on a 64-bit hypervisor. We
> > have a similar implementati
On Thursday 01 December 2011, Catalin Marinas wrote:
> Given the way register banking is done on AArch64, issuing an HVC on a
> 32-bit guest OS doesn't require translation on a 64-bit hypervisor. We
> have a similar implementation at the SVC level (for 32-bit user apps on
> a 64-bit kernel), the on
On Thu, 1 Dec 2011, Ian Campbell wrote:
> On Wed, 2011-11-30 at 18:32 +, Stefano Stabellini wrote:
> > On Wed, 30 Nov 2011, Arnd Bergmann wrote:
> > > KVM and Xen at least both fall into the single-return-value category,
> > > so we should be able to agree on a calling conventions. KVM does not
On Thu, Dec 01, 2011 at 10:26:37AM +, Ian Campbell wrote:
> On Wed, 2011-11-30 at 18:32 +, Stefano Stabellini wrote:
> > On Wed, 30 Nov 2011, Arnd Bergmann wrote:
> > > KVM and Xen at least both fall into the single-return-value category,
> > > so we should be able to agree on a calling con
On Wed, 30 Nov 2011, Arnd Bergmann wrote:
> > In principal we could also offer the user options as to which particular
> > platform a guest looks like.
>
> At least when using a qemu based simulation. Most platforms have some
> characteristics that are not meaningful in a classic virtualization
>
On Wednesday 30 November 2011, Ian Campbell wrote:
> On Wed, 2011-11-30 at 14:32 +, Arnd Bergmann wrote:
> > On Wednesday 30 November 2011, Ian Campbell wrote:
> > What I suggested to the KVM developers is to start out with the
> > vexpress platform, but then generalize it to the point where it
On Wed, 2011-11-30 at 14:32 +, Arnd Bergmann wrote:
> On Wednesday 30 November 2011, Ian Campbell wrote:
> > On Wed, 2011-11-30 at 13:03 +, Arnd Bergmann wrote:
> > For domU the DT would presumably be constructed by the toolstack (in
> > dom0 userspace) as appropriate for the guest configur
On Wed, 2011-11-30 at 13:03 +, Arnd Bergmann wrote:
> On Wednesday 30 November 2011, Stefano Stabellini wrote:
> > On Tue, 29 Nov 2011, Arnd Bergmann wrote:
> > > On Tuesday 29 November 2011, Stefano Stabellini wrote:
> > >
> > > Do you have a pointer to the kernel sources for the Linux guest?
On Wed, 2011-11-30 at 14:32 +, Arnd Bergmann wrote:
> I don't care much either way, but I think it would be good to
> use similar solutions across all hypervisors. The two options
> that I've seen discussed for KVM were to use either a virtual PCI
> bus with individual virtio-pci devices as on
On Wednesday 30 November 2011, Ian Campbell wrote:
> On Wed, 2011-11-30 at 13:03 +, Arnd Bergmann wrote:
> > On Wednesday 30 November 2011, Stefano Stabellini wrote:
> > This is the same choice people have made for KVM, but it's not
> > necessarily the best option in the long run. In particular
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