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KVM: PPC: Remove comment saying SPRG1 is used for vcpu pointer

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Scott Wood pointed out that We are no longer using SPRG1 for vcpu pointer,
but using SPRN_SPRG_THREAD <=> SPRG3 (thread->vcpu). So this comment
is not valid now.

Note: SPRN_SPRG3R is not supported (do not see any need as of now),
and if we want to support this in future then we have to shift to using
SPRG1 for VCPU pointer.

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Bharat Bhushan 2014-07-25 11:32:43 +05:30 committed by Alexander Graf
parent 28d2f421bc
commit 8c95ead603
1 changed files with 0 additions and 3 deletions
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3
arch/powerpc/include/asm/reg.h
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@ -944,9 +944,6 @@
* readable variant for reads, which can avoid a fault
* with KVM type virtualization.
*
* (*) Under KVM, the host SPRG1 is used to point to
* the current VCPU data structure
*
* 32-bit 8xx:
* - SPRG0 scratch for exception vectors
* - SPRG1 scratch for exception vectors