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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-01-20 17:50:21 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-04-20 11:03:22 +1000 |
| commit | 2dd60d79e0202628a47af9812a84d502cc63628c (patch) | |
| tree | 03a114dcb4a8c3b75ec689d372abd331aff5a555 /arch/powerpc/include/asm/system.h | |
| parent | 24cc67de62eebbda3ce0c46bdd56582c00dccd03 (diff) | |
| download | blackbird-op-linux-2dd60d79e0202628a47af9812a84d502cc63628c.tar.gz blackbird-op-linux-2dd60d79e0202628a47af9812a84d502cc63628c.zip | |
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>
Diffstat (limited to 'arch/powerpc/include/asm/system.h')
0 files changed, 0 insertions, 0 deletions
