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(parent: 625df8a) | patch
Nested p2m: rework locking around nested-p2m flushes and updates.
authorTim Deegan <Tim.Deegan@citrix.com>
Thu, 30 Jun 2011 09:26:54 +0000 (10:26 +0100)
committerTim Deegan <Tim.Deegan@citrix.com>
Thu, 30 Jun 2011 09:26:54 +0000 (10:26 +0100)
commit7b56c0f5842e6cd17a654825cfa9fcb4a57c3208
treeb7d00e17e411e1b1960b30b07ad1484fa42e1744tree | snapshot
parent625df8ad2faa686ed9665b45bbebb0fcd0f90103commit | diff
Nested p2m: rework locking around nested-p2m flushes and updates.

The nestedp2m_lock now only covers the mapping from nested-cr3 to
nested-p2m; the tables themselves may be updated or flushed using only
the relevant p2m lock.

This means that the nested-p2m lock is only taken on one path, and
always before any p2m locks.

Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Acked-by: Christoph Egger <Christoph.Egger@amd.com>
xen/arch/x86/mm/hap/nested_hap.c diff | blob | history
xen/arch/x86/mm/mm-locks.h diff | blob | history
xen/arch/x86/mm/p2m.c diff | blob | history
xen/include/asm-x86/p2m.h diff | blob | history
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