[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] [PATCH 0/4] x86/xen: page fault and context switch performance (v2)

This series improves the performance of Xen PV guests when doing page
faults (32-bit guests only) and context switches.

Can an x86 maintainer ack patch 3 (x86: add desc_equal() to compare
GDT descriptors) so this series can go via Konrad's tree?  The other
patches are Xen-specific.

Changes since v1:

- fix (very!) slow boot on x86_64 by avoiding hypercalls when building
  the initial page tables.  These updates were mostly a) done to
  unpinned pages and b) often had invalid MFNs that Xen warns about.

- When building the initial page tables, zero PTEs for pages without
  an MFN yet.

- add desc_equal() instead of open coding it.


Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.