• Juergen Gross's avatar
    smp: Add function to execute a function synchronously on a CPU · df8ce9d7
    Juergen Gross authored
    
    
    On some hardware models (e.g. Dell Studio 1555 laptop) some hardware
    related functions (e.g. SMIs) are to be executed on physical CPU 0
    only. Instead of open coding such a functionality multiple times in
    the kernel add a service function for this purpose. This will enable
    the possibility to take special measures in virtualized environments
    like Xen, too.
    Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
    Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
    Cc: Douglas_Warzecha@dell.com
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: akataria@vmware.com
    Cc: boris.ostrovsky@oracle.com
    Cc: chrisw@sous-sol.org
    Cc: david.vrabel@citrix.com
    Cc: hpa@zytor.com
    Cc: jdelvare@suse.com
    Cc: jeremy@goop.org
    Cc: linux@roeck-us.net
    Cc: pali.rohar@gmail.com
    Cc: rusty@rustcorp.com.au
    Cc: virtualization@lists.linux-foundation.org
    Cc: xen-devel@lists.xenproject.org
    Link:...
    df8ce9d7
smp.c 20.8 KB