diff options
Diffstat (limited to 'MdeModulePkg/Core/Pei/Ipf/IpfCpuCore.s')
| -rw-r--r-- | MdeModulePkg/Core/Pei/Ipf/IpfCpuCore.s | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/MdeModulePkg/Core/Pei/Ipf/IpfCpuCore.s b/MdeModulePkg/Core/Pei/Ipf/IpfCpuCore.s index dfb93821a5..ede5a61eed 100644 --- a/MdeModulePkg/Core/Pei/Ipf/IpfCpuCore.s +++ b/MdeModulePkg/Core/Pei/Ipf/IpfCpuCore.s @@ -22,145 +22,6 @@ #include "IpfMacro.i"
#include "Ipf/IpfCpuCore.i"
-//----------------------------------------------------------------------------------
-// This module supports terminating CAR (Cache As RAM) stage. It copies all the
-// CAR data into real RAM and then makes a stack switch.
-
-// EFI_STATUS
-// SwitchCoreStacks (
-// IN VOID *EntryPoint,
-// IN UINTN CopySize,
-// IN VOID *OldBase,
-// IN VOID *NewBase
-// IN UINTN NewSP, OPTIONAL
-// IN UINTN NewBSP OPTIONAL
-// )
-// EFI_STATUS
-// SwitchCoreStacks (
-// IN VOID *EntryPointForContinuationFunction,
-// IN UINTN StartupDescriptor,
-// IN VOID PEICorePointer,
-// IN UINTN NewSP
-// )
-//----------------------------------------------------------------------------------
-PROCEDURE_ENTRY (SwitchCoreStacks)
-
- NESTED_SETUP (4,2,0,0)
-
- // first save all stack registers in GPRs.
- mov r13 = in0;; // this is a pointer to the PLABEL of the continuation function.
- ld8 r16 = [r13],8;; // r16 = address of continuation function from the PLABEL
- ld8 gp = [r13];; // gp = gp of continuation function from the PLABEL
- mov b1 = r16;;
-
- // save the parameters in r5, r6. these 2 seemed to be preserved across PAL calls
- mov r5 = in1;; // this is the parameter1 to pass to the continuation function
- mov r6 = in2;; // this is the parameter2 to pass to the continuation function
- dep r6=0,r6,63,1;; // zero the bit 63.
-
- mov r8 = in3;; // new stack pointer.
-
- // r8 has the sp, this is 128K stack size, from this we will reserve 16K for the bspstore
- movl r15 = PEI_BSP_STORE_SIZE;;
- sub r8 = r8, r15;;
- add r15 = (GuardBand),r8;; // some little buffer, now r15 will be our bspstore
-
- // save the bspstore value to r4, save sp value to r7
- mov r4 = r15
- mov r7 = r8
- mov r16 = r8;; // will be the new sp in uncache mode
-
-
- alloc r11=0,0,0,0;; // Set 0-size frame
- flushrs;;
-
- mov r21 = RSC_KERNEL_DISABLED;; // for rse disable
- mov ar.rsc = r21;; // turn off RSE
-
- add sp = r0, r16 // transfer to the EFI stack
- mov ar.bspstore = r15 // switch to EFI BSP
- invala // change of ar.bspstore needs invala.
-
- mov r19 = RSC_KERNEL_LAZ;; // RSC enabled, Lazy mode
- mov ar.rsc = r19;; // turn rse on, in kernel mode
-
-//-----------------------------------------------------------------------------------
-// Save here the meaningful stuff for next few lines and then make the PAL call.
-// Make PAL call to terminate the CAR status.
- // AVL: do this only for recovery check call...
-
- mov r28=ar.k3;;
- dep r2 = r28,r0,0,8;; // Extract Function bits from GR20.
- cmp.eq p6,p7 = RecoveryFn,r2;; // Is it Recovery check
- (p7) br.sptk.few DoneCARTermination; // if not, don't terminate car..
-
-TerminateCAR::
-
- mov r28 = ip;;
- add r28 = (DoneCARTerminationPALCall - TerminateCAR),r28;;
- mov b0 = r28
-
- mov r8 = ar.k5;;
- mov b6 = r8
- mov r28 = 0x208
-
- mov r29 = r0
- mov r30 = r0
- mov r31 = r0
- mov r8 = r0;;
- br.sptk.few b6;; // Call PAL-A call.
-
-DoneCARTerminationPALCall::
-
-// don't check error in soft sdv, it is always returning -1 for this call for some reason
-#if SOFT_SDV
-#else
-ReturnToPEIMain::
- cmp.eq p6,p7 = r8,r0;;
- //
- // dead loop if the PAL call failed, we have the CAR on but the stack is now pointing to memory
- //
- (p7) br.sptk.few ReturnToPEIMain;;
- //
- // PAL call successed,now the stack are in memory so come into cache mode
- // instead of uncache mode
- //
-
- alloc r11=0,0,0,0;; // Set 0-size frame
- flushrs;;
-
- mov r21 = RSC_KERNEL_DISABLED;; // for rse disable
- mov ar.rsc = r21;; // turn off RSE
-
- dep r6 = 0,r6,63,1 // zero the bit 63
- dep r7 = 0,r7,63,1 // zero the bit 63
- dep r4 = 0,r4,63,1;; // zero the bit 63
- add sp = r0, r7 // transfer to the EFI stack in cache mode
- mov ar.bspstore = r4 // switch to EFI BSP
- invala // change of ar.bspstore needs invala.
-
- mov r19 = RSC_KERNEL_LAZ;; // RSC enabled, Lazy mode
- mov ar.rsc = r19;; // turn rse on, in kernel mode
-
-#endif
-
-DoneCARTermination::
-
- // allocate a stack frame:
- alloc r11=0,2,2,0 ;; // alloc outs going to ensuing DXE IPL service
- // on the new stack
- mov out0 = r5;;
- mov out1 = r6;;
-
- mov r16 = b1;;
- mov b6 = r16;;
- br.call.sptk.few b0=b6;; // Call the continuation function
-
- NESTED_RETURN
-
-PROCEDURE_EXIT(SwitchCoreStacks)
-//-----------------------------------------------------------------------------------
-
//---------------------------------------------------------------------------------
//++
// GetHandOffStatus
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