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Author SHA1 Message Date
Ard Biesheuvel 4d1f5a214b MdeModulePkg/EbcDxe AARCH64: use a fixed size thunk structure 
The thunk generation is needlessly complex, given that it attempts to
deal with variable length instructions, which don't exist on AArch64.

So replace it with a simple template coded in assembler, with a matching
struct definition in C. That way, we can create and manipulate the thunks
easily without looping over the instructions looking for 'magic' numbers.

Also, use x16 rather than x9, since it is the architectural register to
use for thunks/veneers.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Feng Tian <feng.tian@intel.com>
 2016-09-02 07:59:21 +01:00
Ard Biesheuvel 72b0eaa026 MdeModulePkg/EbcDxe AARCH64: clean up comment style in ASM file 
Change to consistent // style comments. Also, remove bogus global
definitions for external functions, and move the real exports to
the top of the file.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Feng Tian <feng.tian@intel.com>
 2016-09-02 07:59:21 +01:00
Jeff Brasen a15e5bc286 MdeModulePkg/EbcDxe: Add AARCH64 EBC VM support 
Adds support for the EBC VM for AARCH64 platforms

Submitted on behalf of a third-party: The Linux Foundation
This contribution is licensed under the BSD license as found at
http://opensource.org/licenses/bsd-license.php

[Taken from https://source.codeaurora.org/external/server/edk2-blue/]
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Feng Tian <feng.tian@Intel.com>
 2016-08-26 11:52:47 +01:00