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linux-next/arch/ia64/kvm/optvfault.S
Jes Sorensen 0b5d7a2ccb KVM: ia64: Drop in SN2 replacement of fast path ITC emulation fault handler 
Copy in SN2 RTC based ITC emulation for fast exit. The two versions
have the same size, so a dropin is simpler than patching the branch
instruction to hit the SN2 version.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Acked-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10 11:48:29 +03:00

1091 lines
20 KiB
ArmAsm
Raw Blame History

/*
* arch/ia64/kvm/optvfault.S
* optimize virtualization fault handler
*
* Copyright (C) 2006 Intel Co
* Xuefei Xu (Anthony Xu) <anthony.xu@intel.com>
* Copyright (C) 2008 Intel Co
* Add the support for Tukwila processors.
* Xiantao Zhang <xiantao.zhang@intel.com>
*/
#include <asm/asmmacro.h>
#include <asm/processor.h>
#include <asm/kvm_host.h>
#include "vti.h"
#include "asm-offsets.h"
#define ACCE_MOV_FROM_AR
#define ACCE_MOV_FROM_RR
#define ACCE_MOV_TO_RR
#define ACCE_RSM
#define ACCE_SSM
#define ACCE_MOV_TO_PSR
#define ACCE_THASH
#define VMX_VPS_SYNC_READ \
add r16=VMM_VPD_BASE_OFFSET,r21; \
mov r17 = b0; \
mov r18 = r24; \
mov r19 = r25; \
mov r20 = r31; \
;; \
{.mii; \
ld8 r16 = [r16]; \
nop 0x0; \
mov r24 = ip; \
;; \
}; \
{.mmb; \
add r24=0x20, r24; \
mov r25 =r16; \
br.sptk.many kvm_vps_sync_read; \
}; \
mov b0 = r17; \
mov r24 = r18; \
mov r25 = r19; \
mov r31 = r20
ENTRY(kvm_vps_entry)
adds r29 = VMM_VCPU_VSA_BASE_OFFSET,r21
;;
ld8 r29 = [r29]
;;
add r29 = r29, r30
;;
mov b0 = r29
br.sptk.many b0
END(kvm_vps_entry)
/*
* Inputs:
* r24 : return address
* r25 : vpd
* r29 : scratch
*
*/
GLOBAL_ENTRY(kvm_vps_sync_read)
movl r30 = PAL_VPS_SYNC_READ
;;
br.sptk.many kvm_vps_entry
END(kvm_vps_sync_read)
/*
* Inputs:
* r24 : return address
* r25 : vpd
* r29 : scratch
*
*/
GLOBAL_ENTRY(kvm_vps_sync_write)
movl r30 = PAL_VPS_SYNC_WRITE
;;
br.sptk.many kvm_vps_entry
END(kvm_vps_sync_write)
/*
* Inputs:
* r23 : pr
* r24 : guest b0
* r25 : vpd
*
*/
GLOBAL_ENTRY(kvm_vps_resume_normal)
movl r30 = PAL_VPS_RESUME_NORMAL
;;
mov pr=r23,-2
br.sptk.many kvm_vps_entry
END(kvm_vps_resume_normal)
/*
* Inputs:
* r23 : pr
* r24 : guest b0
* r25 : vpd
* r17 : isr
*/
GLOBAL_ENTRY(kvm_vps_resume_handler)
movl r30 = PAL_VPS_RESUME_HANDLER
;;
ld8 r26=[r25]
shr r17=r17,IA64_ISR_IR_BIT
;;
dep r26=r17,r26,63,1 // bit 63 of r26 indicate whether enable CFLE
mov pr=r23,-2
br.sptk.many kvm_vps_entry
END(kvm_vps_resume_handler)
//mov r1=ar3
GLOBAL_ENTRY(kvm_asm_mov_from_ar)
#ifndef ACCE_MOV_FROM_AR
br.many kvm_virtualization_fault_back
#endif
add r18=VMM_VCPU_ITC_OFS_OFFSET, r21
add r16=VMM_VCPU_LAST_ITC_OFFSET,r21
extr.u r17=r25,6,7
;;
ld8 r18=[r18]
mov r19=ar.itc
mov r24=b0
;;
add r19=r19,r18
addl r20=@gprel(asm_mov_to_reg),gp
;;
st8 [r16] = r19
adds r30=kvm_resume_to_guest-asm_mov_to_reg,r20
shladd r17=r17,4,r20
;;
mov b0=r17
br.sptk.few b0
;;
END(kvm_asm_mov_from_ar)
/*
* Special SGI SN2 optimized version of mov_from_ar using the SN2 RTC
* clock as it's source for emulating the ITC. This version will be
* copied on top of the original version if the host is determined to
* be an SN2.
*/
GLOBAL_ENTRY(kvm_asm_mov_from_ar_sn2)
add r18=VMM_VCPU_ITC_OFS_OFFSET, r21
movl r19 = (KVM_VMM_BASE+(1<<KVM_VMM_SHIFT))
add r16=VMM_VCPU_LAST_ITC_OFFSET,r21
extr.u r17=r25,6,7
mov r24=b0
;;
ld8 r18=[r18]
ld8 r19=[r19]
addl r20=@gprel(asm_mov_to_reg),gp
;;
add r19=r19,r18
shladd r17=r17,4,r20
;;
adds r30=kvm_resume_to_guest-asm_mov_to_reg,r20
st8 [r16] = r19
mov b0=r17
br.sptk.few b0
;;
END(kvm_asm_mov_from_ar_sn2)
// mov r1=rr[r3]
GLOBAL_ENTRY(kvm_asm_mov_from_rr)
#ifndef ACCE_MOV_FROM_RR
br.many kvm_virtualization_fault_back
#endif
extr.u r16=r25,20,7
extr.u r17=r25,6,7
addl r20=@gprel(asm_mov_from_reg),gp
;;
adds r30=kvm_asm_mov_from_rr_back_1-asm_mov_from_reg,r20
shladd r16=r16,4,r20
mov r24=b0
;;
add r27=VMM_VCPU_VRR0_OFFSET,r21
mov b0=r16
br.many b0
;;
kvm_asm_mov_from_rr_back_1:
adds r30=kvm_resume_to_guest-asm_mov_from_reg,r20
adds r22=asm_mov_to_reg-asm_mov_from_reg,r20
shr.u r26=r19,61
;;
shladd r17=r17,4,r22
shladd r27=r26,3,r27
;;
ld8 r19=[r27]
mov b0=r17
br.many b0
END(kvm_asm_mov_from_rr)
// mov rr[r3]=r2
GLOBAL_ENTRY(kvm_asm_mov_to_rr)
#ifndef ACCE_MOV_TO_RR
br.many kvm_virtualization_fault_back
#endif
extr.u r16=r25,20,7
extr.u r17=r25,13,7
addl r20=@gprel(asm_mov_from_reg),gp
;;
adds r30=kvm_asm_mov_to_rr_back_1-asm_mov_from_reg,r20
shladd r16=r16,4,r20
mov r22=b0
;;
add r27=VMM_VCPU_VRR0_OFFSET,r21
mov b0=r16
br.many b0
;;
kvm_asm_mov_to_rr_back_1:
adds r30=kvm_asm_mov_to_rr_back_2-asm_mov_from_reg,r20
shr.u r23=r19,61
shladd r17=r17,4,r20
;;
//if rr6, go back
cmp.eq p6,p0=6,r23
mov b0=r22
(p6) br.cond.dpnt.many kvm_virtualization_fault_back
;;
mov r28=r19
mov b0=r17
br.many b0
kvm_asm_mov_to_rr_back_2:
adds r30=kvm_resume_to_guest-asm_mov_from_reg,r20
shladd r27=r23,3,r27
;; // vrr.rid<<4 |0xe
st8 [r27]=r19
mov b0=r30
;;
extr.u r16=r19,8,26
extr.u r18 =r19,2,6
mov r17 =0xe
;;
shladd r16 = r16, 4, r17
extr.u r19 =r19,0,8
;;
shl r16 = r16,8
;;
add r19 = r19, r16
;; //set ve 1
dep r19=-1,r19,0,1
cmp.lt p6,p0=14,r18
;;
(p6) mov r18=14
;;
(p6) dep r19=r18,r19,2,6
;;
cmp.eq p6,p0=0,r23
;;
cmp.eq.or p6,p0=4,r23
;;
adds r16=VMM_VCPU_MODE_FLAGS_OFFSET,r21
(p6) adds r17=VMM_VCPU_META_SAVED_RR0_OFFSET,r21
;;
ld4 r16=[r16]
cmp.eq p7,p0=r0,r0
(p6) shladd r17=r23,1,r17
;;
(p6) st8 [r17]=r19
(p6) tbit.nz p6,p7=r16,0
;;
(p7) mov rr[r28]=r19
mov r24=r22
br.many b0
END(kvm_asm_mov_to_rr)
//rsm
GLOBAL_ENTRY(kvm_asm_rsm)
#ifndef ACCE_RSM
br.many kvm_virtualization_fault_back
#endif
VMX_VPS_SYNC_READ
;;
extr.u r26=r25,6,21
extr.u r27=r25,31,2
;;
extr.u r28=r25,36,1
dep r26=r27,r26,21,2
;;
add r17=VPD_VPSR_START_OFFSET,r16
add r22=VMM_VCPU_MODE_FLAGS_OFFSET,r21
//r26 is imm24
dep r26=r28,r26,23,1
;;
ld8 r18=[r17]
movl r28=IA64_PSR_IC+IA64_PSR_I+IA64_PSR_DT+IA64_PSR_SI
ld4 r23=[r22]
sub r27=-1,r26
mov r24=b0
;;
mov r20=cr.ipsr
or r28=r27,r28
and r19=r18,r27
;;
st8 [r17]=r19
and r20=r20,r28
/* Comment it out due to short of fp lazy alorgithm support
adds r27=IA64_VCPU_FP_PSR_OFFSET,r21
;;
ld8 r27=[r27]
;;
tbit.nz p8,p0= r27,IA64_PSR_DFH_BIT
;;
(p8) dep r20=-1,r20,IA64_PSR_DFH_BIT,1
*/
;;
mov cr.ipsr=r20
tbit.nz p6,p0=r23,0
;;
tbit.z.or p6,p0=r26,IA64_PSR_DT_BIT
(p6) br.dptk kvm_resume_to_guest_with_sync
;;
add r26=VMM_VCPU_META_RR0_OFFSET,r21
add r27=VMM_VCPU_META_RR0_OFFSET+8,r21
dep r23=-1,r23,0,1
;;
ld8 r26=[r26]
ld8 r27=[r27]
st4 [r22]=r23
dep.z r28=4,61,3
;;
mov rr[r0]=r26
;;
mov rr[r28]=r27
;;
srlz.d
br.many kvm_resume_to_guest_with_sync
END(kvm_asm_rsm)
//ssm
GLOBAL_ENTRY(kvm_asm_ssm)
#ifndef ACCE_SSM
br.many kvm_virtualization_fault_back
#endif
VMX_VPS_SYNC_READ
;;
extr.u r26=r25,6,21
extr.u r27=r25,31,2
;;
extr.u r28=r25,36,1
dep r26=r27,r26,21,2
;; //r26 is imm24
add r27=VPD_VPSR_START_OFFSET,r16
dep r26=r28,r26,23,1
;; //r19 vpsr
ld8 r29=[r27]
mov r24=b0
;;
add r22=VMM_VCPU_MODE_FLAGS_OFFSET,r21
mov r20=cr.ipsr
or r19=r29,r26
;;
ld4 r23=[r22]
st8 [r27]=r19
or r20=r20,r26
;;
mov cr.ipsr=r20
movl r28=IA64_PSR_DT+IA64_PSR_RT+IA64_PSR_IT
;;
and r19=r28,r19
tbit.z p6,p0=r23,0
;;
cmp.ne.or p6,p0=r28,r19
(p6) br.dptk kvm_asm_ssm_1
;;
add r26=VMM_VCPU_META_SAVED_RR0_OFFSET,r21
add r27=VMM_VCPU_META_SAVED_RR0_OFFSET+8,r21
dep r23=0,r23,0,1
;;
ld8 r26=[r26]
ld8 r27=[r27]
st4 [r22]=r23
dep.z r28=4,61,3
;;
mov rr[r0]=r26
;;
mov rr[r28]=r27
;;
srlz.d
;;
kvm_asm_ssm_1:
tbit.nz p6,p0=r29,IA64_PSR_I_BIT
;;
tbit.z.or p6,p0=r19,IA64_PSR_I_BIT
(p6) br.dptk kvm_resume_to_guest_with_sync
;;
add r29=VPD_VTPR_START_OFFSET,r16
add r30=VPD_VHPI_START_OFFSET,r16
;;
ld8 r29=[r29]
ld8 r30=[r30]
;;
extr.u r17=r29,4,4
extr.u r18=r29,16,1
;;
dep r17=r18,r17,4,1
;;
cmp.gt p6,p0=r30,r17
(p6) br.dpnt.few kvm_asm_dispatch_vexirq
br.many kvm_resume_to_guest_with_sync
END(kvm_asm_ssm)
//mov psr.l=r2
GLOBAL_ENTRY(kvm_asm_mov_to_psr)
#ifndef ACCE_MOV_TO_PSR
br.many kvm_virtualization_fault_back
#endif
VMX_VPS_SYNC_READ
;;
extr.u r26=r25,13,7 //r2
addl r20=@gprel(asm_mov_from_reg),gp
;;
adds r30=kvm_asm_mov_to_psr_back-asm_mov_from_reg,r20
shladd r26=r26,4,r20
mov r24=b0
;;
add r27=VPD_VPSR_START_OFFSET,r16
mov b0=r26
br.many b0
;;
kvm_asm_mov_to_psr_back:
ld8 r17=[r27]
add r22=VMM_VCPU_MODE_FLAGS_OFFSET,r21
dep r19=0,r19,32,32
;;
ld4 r23=[r22]
dep r18=0,r17,0,32
;;
add r30=r18,r19
movl r28=IA64_PSR_DT+IA64_PSR_RT+IA64_PSR_IT
;;
st8 [r27]=r30
and r27=r28,r30
and r29=r28,r17
;;
cmp.eq p5,p0=r29,r27
cmp.eq p6,p7=r28,r27
(p5) br.many kvm_asm_mov_to_psr_1
;;
//virtual to physical
(p7) add r26=VMM_VCPU_META_RR0_OFFSET,r21
(p7) add r27=VMM_VCPU_META_RR0_OFFSET+8,r21
(p7) dep r23=-1,r23,0,1
;;
//physical to virtual
(p6) add r26=VMM_VCPU_META_SAVED_RR0_OFFSET,r21
(p6) add r27=VMM_VCPU_META_SAVED_RR0_OFFSET+8,r21
(p6) dep r23=0,r23,0,1
;;
ld8 r26=[r26]
ld8 r27=[r27]
st4 [r22]=r23
dep.z r28=4,61,3
;;
mov rr[r0]=r26
;;
mov rr[r28]=r27
;;
srlz.d
;;
kvm_asm_mov_to_psr_1:
mov r20=cr.ipsr
movl r28=IA64_PSR_IC+IA64_PSR_I+IA64_PSR_DT+IA64_PSR_SI+IA64_PSR_RT
;;
or r19=r19,r28
dep r20=0,r20,0,32
;;
add r20=r19,r20
mov b0=r24
;;
/* Comment it out due to short of fp lazy algorithm support
adds r27=IA64_VCPU_FP_PSR_OFFSET,r21
;;
ld8 r27=[r27]
;;
tbit.nz p8,p0=r27,IA64_PSR_DFH_BIT
;;
(p8) dep r20=-1,r20,IA64_PSR_DFH_BIT,1
;;
*/
mov cr.ipsr=r20
cmp.ne p6,p0=r0,r0
;;
tbit.nz.or p6,p0=r17,IA64_PSR_I_BIT
tbit.z.or p6,p0=r30,IA64_PSR_I_BIT
(p6) br.dpnt.few kvm_resume_to_guest_with_sync
;;
add r29=VPD_VTPR_START_OFFSET,r16
add r30=VPD_VHPI_START_OFFSET,r16
;;
ld8 r29=[r29]
ld8 r30=[r30]
;;
extr.u r17=r29,4,4
extr.u r18=r29,16,1
;;
dep r17=r18,r17,4,1
;;
cmp.gt p6,p0=r30,r17
(p6) br.dpnt.few kvm_asm_dispatch_vexirq
br.many kvm_resume_to_guest_with_sync
END(kvm_asm_mov_to_psr)
ENTRY(kvm_asm_dispatch_vexirq)
//increment iip
mov r17 = b0
mov r18 = r31
{.mii
add r25=VMM_VPD_BASE_OFFSET,r21
nop 0x0
mov r24 = ip
;;
}
{.mmb
add r24 = 0x20, r24
ld8 r25 = [r25]
br.sptk.many kvm_vps_sync_write
}
mov b0 =r17
mov r16=cr.ipsr
mov r31 = r18
mov r19 = 37
;;
extr.u r17=r16,IA64_PSR_RI_BIT,2
tbit.nz p6,p7=r16,IA64_PSR_RI_BIT+1
;;
(p6) mov r18=cr.iip
(p6) mov r17=r0
(p7) add r17=1,r17
;;
(p6) add r18=0x10,r18
dep r16=r17,r16,IA64_PSR_RI_BIT,2
;;
(p6) mov cr.iip=r18
mov cr.ipsr=r16
mov r30 =1
br.many kvm_dispatch_vexirq
END(kvm_asm_dispatch_vexirq)
// thash
// TODO: add support when pta.vf = 1
GLOBAL_ENTRY(kvm_asm_thash)
#ifndef ACCE_THASH
br.many kvm_virtualization_fault_back
#endif
extr.u r17=r25,20,7 // get r3 from opcode in r25
extr.u r18=r25,6,7 // get r1 from opcode in r25
addl r20=@gprel(asm_mov_from_reg),gp
;;
adds r30=kvm_asm_thash_back1-asm_mov_from_reg,r20
shladd r17=r17,4,r20 // get addr of MOVE_FROM_REG(r17)
adds r16=VMM_VPD_BASE_OFFSET,r21 // get vcpu.arch.priveregs
;;
mov r24=b0
;;
ld8 r16=[r16] // get VPD addr
mov b0=r17
br.many b0 // r19 return value
;;
kvm_asm_thash_back1:
shr.u r23=r19,61 // get RR number
adds r28=VMM_VCPU_VRR0_OFFSET,r21 // get vcpu->arch.vrr[0]'s addr
adds r16=VMM_VPD_VPTA_OFFSET,r16 // get vpta
;;
shladd r27=r23,3,r28 // get vcpu->arch.vrr[r23]'s addr
ld8 r17=[r16] // get PTA
mov r26=1
;;
extr.u r29=r17,2,6 // get pta.size
ld8 r28=[r27] // get vcpu->arch.vrr[r23]'s value
;;
mov b0=r24
//Fallback to C if pta.vf is set
tbit.nz p6,p0=r17, 8
;;
(p6) mov r24=EVENT_THASH
(p6) br.cond.dpnt.many kvm_virtualization_fault_back
extr.u r28=r28,2,6 // get rr.ps
shl r22=r26,r29 // 1UL << pta.size
;;
shr.u r23=r19,r28 // vaddr >> rr.ps
adds r26=3,r29 // pta.size + 3
shl r27=r17,3 // pta << 3
;;
shl r23=r23,3 // (vaddr >> rr.ps) << 3
shr.u r27=r27,r26 // (pta << 3) >> (pta.size+3)
movl r16=7<<61
;;
adds r22=-1,r22 // (1UL << pta.size) - 1
shl r27=r27,r29 // ((pta<<3)>>(pta.size+3))<<pta.size
and r19=r19,r16 // vaddr & VRN_MASK
;;
and r22=r22,r23 // vhpt_offset
or r19=r19,r27 // (vadr&VRN_MASK)|(((pta<<3)>>(pta.size + 3))<<pta.size)
adds r26=asm_mov_to_reg-asm_mov_from_reg,r20
;;
or r19=r19,r22 // calc pval
shladd r17=r18,4,r26
adds r30=kvm_resume_to_guest-asm_mov_from_reg,r20
;;
mov b0=r17
br.many b0
END(kvm_asm_thash)
#define MOV_TO_REG0 \
{; \
nop.b 0x0; \
nop.b 0x0; \
nop.b 0x0; \
;; \
};
#define MOV_TO_REG(n) \
{; \
mov r##n##=r19; \
mov b0=r30; \
br.sptk.many b0; \
;; \
};
#define MOV_FROM_REG(n) \
{; \
mov r19=r##n##; \
mov b0=r30; \
br.sptk.many b0; \
;; \
};
#define MOV_TO_BANK0_REG(n) \
ENTRY_MIN_ALIGN(asm_mov_to_bank0_reg##n##); \
{; \
mov r26=r2; \
mov r2=r19; \
bsw.1; \
;; \
}; \
{; \
mov r##n##=r2; \
nop.b 0x0; \
bsw.0; \
;; \
}; \
{; \
mov r2=r26; \
mov b0=r30; \
br.sptk.many b0; \
;; \
}; \
END(asm_mov_to_bank0_reg##n##)
#define MOV_FROM_BANK0_REG(n) \
ENTRY_MIN_ALIGN(asm_mov_from_bank0_reg##n##); \
{; \
mov r26=r2; \
nop.b 0x0; \
bsw.1; \
;; \
}; \
{; \
mov r2=r##n##; \
nop.b 0x0; \
bsw.0; \
;; \
}; \
{; \
mov r19=r2; \
mov r2=r26; \
mov b0=r30; \
}; \
{; \
nop.b 0x0; \
nop.b 0x0; \
br.sptk.many b0; \
;; \
}; \
END(asm_mov_from_bank0_reg##n##)
#define JMP_TO_MOV_TO_BANK0_REG(n) \
{; \
nop.b 0x0; \
nop.b 0x0; \
br.sptk.many asm_mov_to_bank0_reg##n##; \
;; \
}
#define JMP_TO_MOV_FROM_BANK0_REG(n) \
{; \
nop.b 0x0; \
nop.b 0x0; \
br.sptk.many asm_mov_from_bank0_reg##n##; \
;; \
}
MOV_FROM_BANK0_REG(16)
MOV_FROM_BANK0_REG(17)
MOV_FROM_BANK0_REG(18)
MOV_FROM_BANK0_REG(19)
MOV_FROM_BANK0_REG(20)
MOV_FROM_BANK0_REG(21)
MOV_FROM_BANK0_REG(22)
MOV_FROM_BANK0_REG(23)
MOV_FROM_BANK0_REG(24)
MOV_FROM_BANK0_REG(25)
MOV_FROM_BANK0_REG(26)
MOV_FROM_BANK0_REG(27)
MOV_FROM_BANK0_REG(28)
MOV_FROM_BANK0_REG(29)
MOV_FROM_BANK0_REG(30)
MOV_FROM_BANK0_REG(31)
// mov from reg table
ENTRY(asm_mov_from_reg)
MOV_FROM_REG(0)
MOV_FROM_REG(1)
MOV_FROM_REG(2)
MOV_FROM_REG(3)
MOV_FROM_REG(4)
MOV_FROM_REG(5)
MOV_FROM_REG(6)
MOV_FROM_REG(7)
MOV_FROM_REG(8)
MOV_FROM_REG(9)
MOV_FROM_REG(10)
MOV_FROM_REG(11)
MOV_FROM_REG(12)
MOV_FROM_REG(13)
MOV_FROM_REG(14)
MOV_FROM_REG(15)
JMP_TO_MOV_FROM_BANK0_REG(16)
JMP_TO_MOV_FROM_BANK0_REG(17)
JMP_TO_MOV_FROM_BANK0_REG(18)
JMP_TO_MOV_FROM_BANK0_REG(19)
JMP_TO_MOV_FROM_BANK0_REG(20)
JMP_TO_MOV_FROM_BANK0_REG(21)
JMP_TO_MOV_FROM_BANK0_REG(22)
JMP_TO_MOV_FROM_BANK0_REG(23)
JMP_TO_MOV_FROM_BANK0_REG(24)
JMP_TO_MOV_FROM_BANK0_REG(25)
JMP_TO_MOV_FROM_BANK0_REG(26)
JMP_TO_MOV_FROM_BANK0_REG(27)
JMP_TO_MOV_FROM_BANK0_REG(28)
JMP_TO_MOV_FROM_BANK0_REG(29)
JMP_TO_MOV_FROM_BANK0_REG(30)
JMP_TO_MOV_FROM_BANK0_REG(31)
MOV_FROM_REG(32)
MOV_FROM_REG(33)
MOV_FROM_REG(34)
MOV_FROM_REG(35)
MOV_FROM_REG(36)
MOV_FROM_REG(37)
MOV_FROM_REG(38)
MOV_FROM_REG(39)
MOV_FROM_REG(40)
MOV_FROM_REG(41)
MOV_FROM_REG(42)
MOV_FROM_REG(43)
MOV_FROM_REG(44)
MOV_FROM_REG(45)
MOV_FROM_REG(46)
MOV_FROM_REG(47)
MOV_FROM_REG(48)
MOV_FROM_REG(49)
MOV_FROM_REG(50)
MOV_FROM_REG(51)
MOV_FROM_REG(52)
MOV_FROM_REG(53)
MOV_FROM_REG(54)
MOV_FROM_REG(55)
MOV_FROM_REG(56)
MOV_FROM_REG(57)
MOV_FROM_REG(58)
MOV_FROM_REG(59)
MOV_FROM_REG(60)
MOV_FROM_REG(61)
MOV_FROM_REG(62)
MOV_FROM_REG(63)
MOV_FROM_REG(64)
MOV_FROM_REG(65)
MOV_FROM_REG(66)
MOV_FROM_REG(67)
MOV_FROM_REG(68)
MOV_FROM_REG(69)
MOV_FROM_REG(70)
MOV_FROM_REG(71)
MOV_FROM_REG(72)
MOV_FROM_REG(73)
MOV_FROM_REG(74)
MOV_FROM_REG(75)
MOV_FROM_REG(76)
MOV_FROM_REG(77)
MOV_FROM_REG(78)
MOV_FROM_REG(79)
MOV_FROM_REG(80)
MOV_FROM_REG(81)
MOV_FROM_REG(82)
MOV_FROM_REG(83)
MOV_FROM_REG(84)
MOV_FROM_REG(85)
MOV_FROM_REG(86)
MOV_FROM_REG(87)
MOV_FROM_REG(88)
MOV_FROM_REG(89)
MOV_FROM_REG(90)
MOV_FROM_REG(91)
MOV_FROM_REG(92)
MOV_FROM_REG(93)
MOV_FROM_REG(94)
MOV_FROM_REG(95)
MOV_FROM_REG(96)
MOV_FROM_REG(97)
MOV_FROM_REG(98)
MOV_FROM_REG(99)
MOV_FROM_REG(100)
MOV_FROM_REG(101)
MOV_FROM_REG(102)
MOV_FROM_REG(103)
MOV_FROM_REG(104)
MOV_FROM_REG(105)
MOV_FROM_REG(106)
MOV_FROM_REG(107)
MOV_FROM_REG(108)
MOV_FROM_REG(109)
MOV_FROM_REG(110)
MOV_FROM_REG(111)
MOV_FROM_REG(112)
MOV_FROM_REG(113)
MOV_FROM_REG(114)
MOV_FROM_REG(115)
MOV_FROM_REG(116)
MOV_FROM_REG(117)
MOV_FROM_REG(118)
MOV_FROM_REG(119)
MOV_FROM_REG(120)
MOV_FROM_REG(121)
MOV_FROM_REG(122)
MOV_FROM_REG(123)
MOV_FROM_REG(124)
MOV_FROM_REG(125)
MOV_FROM_REG(126)
MOV_FROM_REG(127)
END(asm_mov_from_reg)
/* must be in bank 0
* parameter:
* r31: pr
* r24: b0
*/
ENTRY(kvm_resume_to_guest_with_sync)
adds r19=VMM_VPD_BASE_OFFSET,r21
mov r16 = r31
mov r17 = r24
;;
{.mii
ld8 r25 =[r19]
nop 0x0
mov r24 = ip
;;
}
{.mmb
add r24 =0x20, r24
nop 0x0
br.sptk.many kvm_vps_sync_write
}
mov r31 = r16
mov r24 =r17
;;
br.sptk.many kvm_resume_to_guest
END(kvm_resume_to_guest_with_sync)
ENTRY(kvm_resume_to_guest)
adds r16 = VMM_VCPU_SAVED_GP_OFFSET,r21
;;
ld8 r1 =[r16]
adds r20 = VMM_VCPU_VSA_BASE_OFFSET,r21
;;
mov r16=cr.ipsr
;;
ld8 r20 = [r20]
adds r19=VMM_VPD_BASE_OFFSET,r21
;;
ld8 r25=[r19]
extr.u r17=r16,IA64_PSR_RI_BIT,2
tbit.nz p6,p7=r16,IA64_PSR_RI_BIT+1
;;
(p6) mov r18=cr.iip
(p6) mov r17=r0
;;
(p6) add r18=0x10,r18
(p7) add r17=1,r17
;;
(p6) mov cr.iip=r18
dep r16=r17,r16,IA64_PSR_RI_BIT,2
;;
mov cr.ipsr=r16
adds r19= VPD_VPSR_START_OFFSET,r25
add r28=PAL_VPS_RESUME_NORMAL,r20
add r29=PAL_VPS_RESUME_HANDLER,r20
;;
ld8 r19=[r19]
mov b0=r29
mov r27=cr.isr
;;
tbit.z p6,p7 = r19,IA64_PSR_IC_BIT // p7=vpsr.ic
shr r27=r27,IA64_ISR_IR_BIT
;;
(p6) ld8 r26=[r25]
(p7) mov b0=r28
;;
(p6) dep r26=r27,r26,63,1
mov pr=r31,-2
br.sptk.many b0 // call pal service
;;
END(kvm_resume_to_guest)
MOV_TO_BANK0_REG(16)
MOV_TO_BANK0_REG(17)
MOV_TO_BANK0_REG(18)
MOV_TO_BANK0_REG(19)
MOV_TO_BANK0_REG(20)
MOV_TO_BANK0_REG(21)
MOV_TO_BANK0_REG(22)
MOV_TO_BANK0_REG(23)
MOV_TO_BANK0_REG(24)
MOV_TO_BANK0_REG(25)
MOV_TO_BANK0_REG(26)
MOV_TO_BANK0_REG(27)
MOV_TO_BANK0_REG(28)
MOV_TO_BANK0_REG(29)
MOV_TO_BANK0_REG(30)
MOV_TO_BANK0_REG(31)
// mov to reg table
ENTRY(asm_mov_to_reg)
MOV_TO_REG0
MOV_TO_REG(1)
MOV_TO_REG(2)
MOV_TO_REG(3)
MOV_TO_REG(4)
MOV_TO_REG(5)
MOV_TO_REG(6)
MOV_TO_REG(7)
MOV_TO_REG(8)
MOV_TO_REG(9)
MOV_TO_REG(10)
MOV_TO_REG(11)
MOV_TO_REG(12)
MOV_TO_REG(13)
MOV_TO_REG(14)
MOV_TO_REG(15)
JMP_TO_MOV_TO_BANK0_REG(16)
JMP_TO_MOV_TO_BANK0_REG(17)
JMP_TO_MOV_TO_BANK0_REG(18)
JMP_TO_MOV_TO_BANK0_REG(19)
JMP_TO_MOV_TO_BANK0_REG(20)
JMP_TO_MOV_TO_BANK0_REG(21)
JMP_TO_MOV_TO_BANK0_REG(22)
JMP_TO_MOV_TO_BANK0_REG(23)
JMP_TO_MOV_TO_BANK0_REG(24)
JMP_TO_MOV_TO_BANK0_REG(25)
JMP_TO_MOV_TO_BANK0_REG(26)
JMP_TO_MOV_TO_BANK0_REG(27)
JMP_TO_MOV_TO_BANK0_REG(28)
JMP_TO_MOV_TO_BANK0_REG(29)
JMP_TO_MOV_TO_BANK0_REG(30)
JMP_TO_MOV_TO_BANK0_REG(31)
MOV_TO_REG(32)
MOV_TO_REG(33)
MOV_TO_REG(34)
MOV_TO_REG(35)
MOV_TO_REG(36)
MOV_TO_REG(37)
MOV_TO_REG(38)
MOV_TO_REG(39)
MOV_TO_REG(40)
MOV_TO_REG(41)
MOV_TO_REG(42)
MOV_TO_REG(43)
MOV_TO_REG(44)
MOV_TO_REG(45)
MOV_TO_REG(46)
MOV_TO_REG(47)
MOV_TO_REG(48)
MOV_TO_REG(49)
MOV_TO_REG(50)
MOV_TO_REG(51)
MOV_TO_REG(52)
MOV_TO_REG(53)
MOV_TO_REG(54)
MOV_TO_REG(55)
MOV_TO_REG(56)
MOV_TO_REG(57)
MOV_TO_REG(58)
MOV_TO_REG(59)
MOV_TO_REG(60)
MOV_TO_REG(61)
MOV_TO_REG(62)
MOV_TO_REG(63)
MOV_TO_REG(64)
MOV_TO_REG(65)
MOV_TO_REG(66)
MOV_TO_REG(67)
MOV_TO_REG(68)
MOV_TO_REG(69)
MOV_TO_REG(70)
MOV_TO_REG(71)
MOV_TO_REG(72)
MOV_TO_REG(73)
MOV_TO_REG(74)
MOV_TO_REG(75)
MOV_TO_REG(76)
MOV_TO_REG(77)
MOV_TO_REG(78)
MOV_TO_REG(79)
MOV_TO_REG(80)
MOV_TO_REG(81)
MOV_TO_REG(82)
MOV_TO_REG(83)
MOV_TO_REG(84)
MOV_TO_REG(85)
MOV_TO_REG(86)
MOV_TO_REG(87)
MOV_TO_REG(88)
MOV_TO_REG(89)
MOV_TO_REG(90)
MOV_TO_REG(91)
MOV_TO_REG(92)
MOV_TO_REG(93)
MOV_TO_REG(94)
MOV_TO_REG(95)
MOV_TO_REG(96)
MOV_TO_REG(97)
MOV_TO_REG(98)
MOV_TO_REG(99)
MOV_TO_REG(100)
MOV_TO_REG(101)
MOV_TO_REG(102)
MOV_TO_REG(103)
MOV_TO_REG(104)
MOV_TO_REG(105)
MOV_TO_REG(106)
MOV_TO_REG(107)
MOV_TO_REG(108)
MOV_TO_REG(109)
MOV_TO_REG(110)
MOV_TO_REG(111)
MOV_TO_REG(112)
MOV_TO_REG(113)
MOV_TO_REG(114)
MOV_TO_REG(115)
MOV_TO_REG(116)
MOV_TO_REG(117)
MOV_TO_REG(118)
MOV_TO_REG(119)
MOV_TO_REG(120)
MOV_TO_REG(121)
MOV_TO_REG(122)
MOV_TO_REG(123)
MOV_TO_REG(124)
MOV_TO_REG(125)
MOV_TO_REG(126)
MOV_TO_REG(127)
END(asm_mov_to_reg)
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