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RE: [Xen-devel] [PATCH] Fixing 32-bit guest support on x86_64 xen

  • To: "Matt Ayres" <matta@xxxxxxxxxxxx>
  • From: "Nakajima, Jun" <jun.nakajima@xxxxxxxxx>
  • Date: Sun, 4 Dec 2005 11:16:01 -0800
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Sun, 04 Dec 2005 19:16:02 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcX4+fgNa8g+VhJuSJeJ/AFEPClNTgAC9EEg
  • Thread-topic: [Xen-devel] [PATCH] Fixing 32-bit guest support on x86_64 xen

Matt Ayres wrote:
> Nakajima, Jun wrote:
>> The patch fixes unmodified 32-bit guest support on the x86_64 Xen.
>> Please apply. 
> Is this supposed to allow 32-bit domU kernels running under a 64-bit
> Xen/dom0 or just a 32-bit user land under a 64-bit setup?

The domU kernels are xenlinux, and 32-bit xenlinux does not run on a
64-hit Xen. The patch is supposed to fix 32-bit _unmodified_ guests
support (e.g. native Linux, Windows, etc.) on a 64-bit Xen when the H/W
virtualization technology is present.

32-bit userland apps are supposed to run in x86_64 xenlinux today.

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