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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-01-20 17:50:21 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-04-20 11:03:22 +1000
commit2dd60d79e0202628a47af9812a84d502cc63628c (patch)
tree03a114dcb4a8c3b75ec689d372abd331aff5a555 /arch/powerpc/platforms
parent24cc67de62eebbda3ce0c46bdd56582c00dccd03 (diff)
downloadlinaro-lsk-2dd60d79e0202628a47af9812a84d502cc63628c.tar.gz
powerpc: In HV mode, use HSPRG0 for PACA
When running in Hypervisor mode (arch 2.06 or later), we store the PACA in HSPRG0 instead of SPRG1. The architecture specifies that SPRGs may be lost during a "nap" power management operation (though they aren't currently on POWER7) and this enables use of SPRG1 by KVM guests. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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