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authorCédric Le Goater2017-11-24 08:05:49 +0100
committerDavid Gibson2017-12-14 23:49:24 +0100
commitd6322252b3210b663e303746f151abbae7d0b6db (patch)
tree72e721aed9af669c0f5874e1e70d8a2ff90f8236 /include
parentspapr/rtas: disable the decrementer interrupt when a CPU is unplugged (diff)
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spapr/rtas: fix reboot of a a SMP TCG guest
Just like for hot unplug CPUs, when a guest is rebooted, the secondary CPUs can be awaken by the decrementer and start entering SLOF at the same time the boot CPU is. To be safe, let's disable on the secondaries all the exceptions which can cause an exit while the CPU is in power-saving mode. Based on previous work from Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include')
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