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[PATCH] ppc64: Add VMX save flag to VPA

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We need to indicate to the hypervisor that it needs to save our VMX
registers when switching partitions on a shared-processor system, just as
it needs to for FP and PMC registers.

This could be made to be on-demand when VMX is used, but we don't do that
for FP nor PMC right now either so let's not overcomplicate things.

Signed-off-by: Olof Johansson <[email protected]>
Acked-by: Paul Mackerras <[email protected]>
Cc: Anton Blanchard <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Olof Johansson 2005-09-03 15:55:59 -07:00 • committed by Linus Torvalds
commit 233ccd0d04
3 changed files with 6 additions and 1 deletions
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2
include/asm-ppc64/lppaca.h
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@ -108,7 +108,7 @@ struct lppaca
volatile u32 virtual_decr; // Virtual DECR for shared procsx78-x7B
u16 slb_count; // # of SLBs to maintain x7C-x7D
u8 idle; // Indicate OS is idle x7E
u8 reserved5; // Reserved x7F
u8 vmxregs_in_use; // VMX registers in use x7F
//=============================================================================