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authorJeremy Fitzhardinge2008-07-09 00:06:42 +0200
committerIngo Molnar2008-07-16 10:58:13 +0200
commit5b09b2876ed1a8e34a0da8f069575fc6174e2077 (patch)
tree370750e5c1d4073ed4a7525ccd0348e4154ba0d4 /arch/x86/xen/smp.c
parentxen: move smp setup into smp.c (diff)
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x86_64: add workaround for no %gs-based percpu
As a stopgap until Mike Travis's x86-64 gs-based percpu patches are ready, provide workaround functions for x86_read/write_percpu for Xen's use. Specifically, this means that we can't really make use of vcpu placement, because we can't use a single gs-based memory access to get to vcpu fields. So disable all that for now. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Stephen Tweedie <sct@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/xen/smp.c')
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