Ard Biesheuvel 16dc5b68fc MdeModulePkg/EbcDxe: use EfiBootServicesCode memory for thunks ... The EBC driver emits thunks for native to EBC calls, which are short instructions sequences that bridge the gap between the native execution environment and the EBC virtual machine. Since these thunks are allocated using MemoryAllocationLib::AllocatePool(), they are emitted into EfiBootServicesData regions, which does not reflect the nature of these thunks accurately, and interferes with strict memory protection policies that map data regions non-executable. So instead, create a new helper EbcAllocatePoolForThunk() that invokes the AllocatePool() boot service directly to allocate EfiBootServicesCode pool memory explicitly, and wire up this helper for the various architecture specific thunk generation routines. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>		2017-02-28 14:59:50 +00:00
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EbcLowLevel.S	Fix X64 native function call prolog. Prepare space for at least 4 arguments,	2014-09-22 05:54:41 +00:00
EbcLowLevel.asm	Fix X64 native function call prolog. Prepare space for at least 4 arguments,	2014-09-22 05:54:41 +00:00
EbcLowLevel.nasm	MdeModulePkg EbcDxe: Convert X64/EbcLowLevel.asm to NASM	2016-06-28 09:51:58 +08:00
EbcSupport.c	MdeModulePkg/EbcDxe: use EfiBootServicesCode memory for thunks	2017-02-28 14:59:50 +00:00