xen: disable PV spinlocks on HVM

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PV spinlocks cannot possibly work with the current code because they are
enabled after pvops patching has already been done, and because PV
spinlocks use a different data structure than native spinlocks so we
cannot switch between them dynamically. A spinlock that has been taken
once by the native code (__ticket_spin_lock) cannot be taken by
__xen_spin_lock even after it has been released.

Reported-and-Tested-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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Stefano Stabellini 2011-09-06 17:41:47 +01:00 • committed by Konrad Rzeszutek Wilk

parent ed467e69f1

commit f10cd522c5

1 changed files with 0 additions and 1 deletions

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arch/x86/xen/smp.c

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