abcbbb14a4
Change in V4:
- Replace the license by the commonly used file header text.
- add file header to XenHypercall.h (license, copyright, brief desc)
Change in V3:
- adding IA32 support. (not reviewed yet)
both XenBusDxe/Ia32/hypercall.{S,asm} file are new
Change in V2:
- file header, copyright
- Add License
- Add push/pop instruction.
- fix types
- Comment of exported functions
- Improve coding style
- Add error handling in the main init function (of the drivers)
- Comment assembly
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16260 6f19259b-4bc3-4df7-8a09-765794883524
23 lines
459 B
ArmAsm
23 lines
459 B
ArmAsm
# INTN
|
|
# EFIAPI
|
|
# XenHypercall2 (
|
|
# IN VOID *HypercallAddr,
|
|
# IN OUT INTN Arg1,
|
|
# IN OUT INTN Arg2
|
|
# );
|
|
ASM_GLOBAL ASM_PFX(XenHypercall2)
|
|
ASM_PFX(XenHypercall2):
|
|
push %rdi
|
|
push %rsi
|
|
# Copy HypercallAddr to rax
|
|
movq %rcx, %rax
|
|
# Copy Arg1 to the register expected by Xen
|
|
movq %rdx, %rdi
|
|
# Copy Arg2 to the register expected by Xen
|
|
movq %r8, %rsi
|
|
# Call HypercallAddr
|
|
call *%rax
|
|
pop %rsi
|
|
pop %rdi
|
|
ret
|