95 lines
1.6 KiB
ArmAsm
95 lines
1.6 KiB
ArmAsm
|
/*
|
||
|
|
* This file contains the code to perform calls to the
|
||
|
|
* iSeries LPAR hypervisor
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version
|
||
|
|
* 2 of the License, or (at your option) any later version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <asm/ppc_asm.h>
|
||
|
|
#include <asm/processor.h>
|
||
|
|
#include <asm/ptrace.h> /* XXX for STACK_FRAME_OVERHEAD */
|
||
|
|
|
||
|
|
.text
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Hypervisor call
|
||
|
|
*
|
||
|
|
* Invoke the iSeries hypervisor via the System Call instruction
|
||
|
|
* Parameters are passed to this routine in registers r3 - r10
|
||
|
|
*
|
||
|
|
* r3 contains the HV function to be called
|
||
|
|
* r4-r10 contain the operands to the hypervisor function
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
_GLOBAL(HvCall)
|
||
|
|
_GLOBAL(HvCall0)
|
||
|
|
_GLOBAL(HvCall1)
|
||
|
|
_GLOBAL(HvCall2)
|
||
|
|
_GLOBAL(HvCall3)
|
||
|
|
_GLOBAL(HvCall4)
|
||
|
|
_GLOBAL(HvCall5)
|
||
|
|
_GLOBAL(HvCall6)
|
||
|
|
_GLOBAL(HvCall7)
|
||
|
|
|
||
|
|
|
||
|
|
mfcr r0
|
||
|
|
std r0,-8(r1)
|
||
|
|
stdu r1,-(STACK_FRAME_OVERHEAD+16)(r1)
|
||
|
|
|
||
|
|
/* r0 = 0xffffffffffffffff indicates a hypervisor call */
|
||
|
|
|
||
|
|
li r0,-1
|
||
|
|
|
||
|
|
/* Invoke the hypervisor */
|
||
|
|
|
||
|
|
sc
|
||
|
|
|
||
|
|
ld r1,0(r1)
|
||
|
|
ld r0,-8(r1)
|
||
|
|
mtcrf 0xff,r0
|
||
|
|
|
||
|
|
/* return to caller, return value in r3 */
|
||
|
|
|
||
|
|
blr
|
||
|
|
|
||
|
|
_GLOBAL(HvCall0Ret16)
|
||
|
|
_GLOBAL(HvCall1Ret16)
|
||
|
|
_GLOBAL(HvCall2Ret16)
|
||
|
|
_GLOBAL(HvCall3Ret16)
|
||
|
|
_GLOBAL(HvCall4Ret16)
|
||
|
|
_GLOBAL(HvCall5Ret16)
|
||
|
|
_GLOBAL(HvCall6Ret16)
|
||
|
|
_GLOBAL(HvCall7Ret16)
|
||
|
|
|
||
|
|
mfcr r0
|
||
|
|
std r0,-8(r1)
|
||
|
|
std r31,-16(r1)
|
||
|
|
stdu r1,-(STACK_FRAME_OVERHEAD+32)(r1)
|
||
|
|
|
||
|
|
mr r31,r4
|
||
|
|
li r0,-1
|
||
|
|
mr r4,r5
|
||
|
|
mr r5,r6
|
||
|
|
mr r6,r7
|
||
|
|
mr r7,r8
|
||
|
|
mr r8,r9
|
||
|
|
mr r9,r10
|
||
|
|
|
||
|
|
sc
|
||
|
|
|
||
|
|
std r3,0(r31)
|
||
|
|
std r4,8(r31)
|
||
|
|
|
||
|
|
mr r3,r5
|
||
|
|
|
||
|
|
ld r1,0(r1)
|
||
|
|
ld r0,-8(r1)
|
||
|
|
mtcrf 0xff,r0
|
||
|
|
ld r31,-16(r1)
|
||
|
|
|
||
|
|
blr
|