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arch/tile: parameterize system PLs to support KVM port

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While not a port to KVM (yet), this change modifies the kernel
to be able to build either at PL1 or at PL2 with a suitable
config switch.  Pushing up this change avoids handling branch
merge issues going forward with the KVM work.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
This commit is contained in:
Chris Metcalf
2010-10-14 16:23:03 -04:00
parent bf65e440e8
commit a78c942df6
23 changed files with 337 additions and 131 deletions
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arch/tile/include/asm/system.h
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@@ -164,7 +164,7 @@ extern struct task_struct *_switch_to(struct task_struct *prev,
/* Helper function for _switch_to(). */
extern struct task_struct *__switch_to(struct task_struct *prev,
struct task_struct *next,
unsigned long new_system_save_1_0);
unsigned long new_system_save_k_0);
/* Address that switched-away from tasks are at. */
extern unsigned long get_switch_to_pc(void);