diff options
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Include/Library/BaseLib.h | 2 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/LongJump.asm | 14 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/SetJump.asm | 12 |
3 files changed, 27 insertions, 1 deletions
diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h index 32887b1..25d61f1 100644 --- a/MdePkg/Include/Library/BaseLib.h +++ b/MdePkg/Include/Library/BaseLib.h @@ -101,6 +101,8 @@ typedef struct { UINT64 R14;
UINT64 R15;
UINT64 Rip;
+ UINT64 MxCsr;
+ UINT8 XmmBuffer[160]; ///< XMM6-XMM15
} BASE_LIBRARY_JUMP_BUFFER;
#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8
diff --git a/MdePkg/Library/BaseLib/X64/LongJump.asm b/MdePkg/Library/BaseLib/X64/LongJump.asm index 38e5606..2b63fab 100644 --- a/MdePkg/Library/BaseLib/X64/LongJump.asm +++ b/MdePkg/Library/BaseLib/X64/LongJump.asm @@ -39,7 +39,19 @@ InternalLongJump PROC mov r13, [rcx + 30h]
mov r14, [rcx + 38h]
mov r15, [rcx + 40h]
- mov rax, rdx ; set return value
+ ; load non-volatile fp registers
+ ldmxcsr [rcx + 50h]
+ movdqu xmm6, [rcx + 58h]
+ movdqu xmm7, [rcx + 68h]
+ movdqu xmm8, [rcx + 78h]
+ movdqu xmm9, [rcx + 88h]
+ movdqu xmm10, [rcx + 98h]
+ movdqu xmm11, [rcx + 0A8h]
+ movdqu xmm12, [rcx + 0B8h]
+ movdqu xmm13, [rcx + 0C8h]
+ movdqu xmm14, [rcx + 0D8h]
+ movdqu xmm15, [rcx + 0E8h]
+ mov rax, rdx ; set return value
jmp qword ptr [rcx + 48h]
InternalLongJump ENDP
diff --git a/MdePkg/Library/BaseLib/X64/SetJump.asm b/MdePkg/Library/BaseLib/X64/SetJump.asm index 2ed581e..5ef8de3 100644 --- a/MdePkg/Library/BaseLib/X64/SetJump.asm +++ b/MdePkg/Library/BaseLib/X64/SetJump.asm @@ -47,6 +47,18 @@ SetJump PROC mov [rcx + 38h], r14
mov [rcx + 40h], r15
mov [rcx + 48h], rdx
+ ; save non-volatile fp registers
+ stmxcsr [rcx + 50h]
+ movdqu [rcx + 58h], xmm6
+ movdqu [rcx + 68h], xmm7
+ movdqu [rcx + 78h], xmm8
+ movdqu [rcx + 88h], xmm9
+ movdqu [rcx + 98h], xmm10
+ movdqu [rcx + 0A8h], xmm11
+ movdqu [rcx + 0B8h], xmm12
+ movdqu [rcx + 0C8h], xmm13
+ movdqu [rcx + 0D8h], xmm14
+ movdqu [rcx + 0E8h], xmm15
xor rax, rax
jmp rdx
SetJump ENDP
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