powerpc/pseries/vas: Add hcall wrappers for VAS handling

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This patch adds the following hcall wrapper functions to allocate,
modify and deallocate VAS windows, and retrieve VAS capabilities.

H_ALLOCATE_VAS_WINDOW: Allocate VAS window
H_DEALLOCATE_VAS_WINDOW: Close VAS window
H_MODIFY_VAS_WINDOW: Setup window before using
H_QUERY_VAS_CAPABILITIES: Get VAS capabilities

Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/40fb02a4d56ca4e240b074a15029082055be5997.camel@linux.ibm.com

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Haren Myneni 2021-06-17 13:35:22 -07:00 • committed by Michael Ellerman

parent 540761b7f5

commit f33ecfde30

1 changed files with 147 additions and 0 deletions

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arch/powerpc/platforms/pseries/vas.c

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