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linux-next/arch/powerpc/kvm/booke_interrupts.S
Alexander Graf b2677b8dd8 KVM: PPC: Remove 440 support 
The 440 target hasn't been properly functioning for a few releases and
before I was the only one who fixes a very serious bug that indicates to
me that nobody used it before either.

Furthermore KVM on 440 is slow to the extent of unusable.

We don't have to carry along completely unused code. Remove 440 and give
us one less thing to worry about.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-07-28 15:23:15 +02:00

548 lines
15 KiB
ArmAsm
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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright IBM Corp. 2007
* Copyright 2011 Freescale Semiconductor, Inc.
*
* Authors: Hollis Blanchard <hollisb@us.ibm.com>
*/
#include <asm/ppc_asm.h>
#include <asm/kvm_asm.h>
#include <asm/reg.h>
#include <asm/page.h>
#include <asm/asm-offsets.h>
/* The host stack layout: */
#define HOST_R1 0 /* Implied by stwu. */
#define HOST_CALLEE_LR 4
#define HOST_RUN 8
/* r2 is special: it holds 'current', and it made nonvolatile in the
* kernel with the -ffixed-r2 gcc option. */
#define HOST_R2 12
#define HOST_CR 16
#define HOST_NV_GPRS 20
#define __HOST_NV_GPR(n) (HOST_NV_GPRS + ((n - 14) * 4))
#define HOST_NV_GPR(n) __HOST_NV_GPR(__REG_##n)
#define HOST_MIN_STACK_SIZE (HOST_NV_GPR(R31) + 4)
#define HOST_STACK_SIZE (((HOST_MIN_STACK_SIZE + 15) / 16) * 16) /* Align. */
#define HOST_STACK_LR (HOST_STACK_SIZE + 4) /* In caller stack frame. */
#define NEED_INST_MASK ((1<<BOOKE_INTERRUPT_PROGRAM) | \
(1<<BOOKE_INTERRUPT_DTLB_MISS) | \
(1<<BOOKE_INTERRUPT_DEBUG))
#define NEED_DEAR_MASK ((1<<BOOKE_INTERRUPT_DATA_STORAGE) | \
(1<<BOOKE_INTERRUPT_DTLB_MISS) | \
(1<<BOOKE_INTERRUPT_ALIGNMENT))
#define NEED_ESR_MASK ((1<<BOOKE_INTERRUPT_DATA_STORAGE) | \
(1<<BOOKE_INTERRUPT_INST_STORAGE) | \
(1<<BOOKE_INTERRUPT_PROGRAM) | \
(1<<BOOKE_INTERRUPT_DTLB_MISS) | \
(1<<BOOKE_INTERRUPT_ALIGNMENT))
.macro __KVM_HANDLER ivor_nr scratch srr0
/* Get pointer to vcpu and record exit number. */
mtspr \scratch , r4
mfspr r4, SPRN_SPRG_THREAD
lwz r4, THREAD_KVM_VCPU(r4)
stw r3, VCPU_GPR(R3)(r4)
stw r5, VCPU_GPR(R5)(r4)
stw r6, VCPU_GPR(R6)(r4)
mfspr r3, \scratch
mfctr r5
stw r3, VCPU_GPR(R4)(r4)
stw r5, VCPU_CTR(r4)
mfspr r3, \srr0
lis r6, kvmppc_resume_host@h
stw r3, VCPU_PC(r4)
li r5, \ivor_nr
ori r6, r6, kvmppc_resume_host@l
mtctr r6
bctr
.endm
.macro KVM_HANDLER ivor_nr scratch srr0
_GLOBAL(kvmppc_handler_\ivor_nr)
__KVM_HANDLER \ivor_nr \scratch \srr0
.endm
.macro KVM_DBG_HANDLER ivor_nr scratch srr0
_GLOBAL(kvmppc_handler_\ivor_nr)
mtspr \scratch, r4
mfspr r4, SPRN_SPRG_THREAD
lwz r4, THREAD_KVM_VCPU(r4)
stw r3, VCPU_CRIT_SAVE(r4)
mfcr r3
mfspr r4, SPRN_CSRR1
andi. r4, r4, MSR_PR
bne 1f
/* debug interrupt happened in enter/exit path */
mfspr r4, SPRN_CSRR1
rlwinm r4, r4, 0, ~MSR_DE
mtspr SPRN_CSRR1, r4
lis r4, 0xffff
ori r4, r4, 0xffff
mtspr SPRN_DBSR, r4
mfspr r4, SPRN_SPRG_THREAD
lwz r4, THREAD_KVM_VCPU(r4)
mtcr r3
lwz r3, VCPU_CRIT_SAVE(r4)
mfspr r4, \scratch
rfci
1: /* debug interrupt happened in guest */
mtcr r3
mfspr r4, SPRN_SPRG_THREAD
lwz r4, THREAD_KVM_VCPU(r4)
lwz r3, VCPU_CRIT_SAVE(r4)
mfspr r4, \scratch
__KVM_HANDLER \ivor_nr \scratch \srr0
.endm
.macro KVM_HANDLER_ADDR ivor_nr
.long kvmppc_handler_\ivor_nr
.endm
.macro KVM_HANDLER_END
.long kvmppc_handlers_end
.endm
_GLOBAL(kvmppc_handlers_start)
KVM_HANDLER BOOKE_INTERRUPT_CRITICAL SPRN_SPRG_RSCRATCH_CRIT SPRN_CSRR0
KVM_HANDLER BOOKE_INTERRUPT_MACHINE_CHECK SPRN_SPRG_RSCRATCH_MC SPRN_MCSRR0
KVM_HANDLER BOOKE_INTERRUPT_DATA_STORAGE SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_INST_STORAGE SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_EXTERNAL SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_ALIGNMENT SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_PROGRAM SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_FP_UNAVAIL SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_SYSCALL SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_AP_UNAVAIL SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_DECREMENTER SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_FIT SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_WATCHDOG SPRN_SPRG_RSCRATCH_CRIT SPRN_CSRR0
KVM_HANDLER BOOKE_INTERRUPT_DTLB_MISS SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_ITLB_MISS SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_DBG_HANDLER BOOKE_INTERRUPT_DEBUG SPRN_SPRG_RSCRATCH_CRIT SPRN_CSRR0
KVM_HANDLER BOOKE_INTERRUPT_SPE_UNAVAIL SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_SPE_FP_DATA SPRN_SPRG_RSCRATCH0 SPRN_SRR0
KVM_HANDLER BOOKE_INTERRUPT_SPE_FP_ROUND SPRN_SPRG_RSCRATCH0 SPRN_SRR0
_GLOBAL(kvmppc_handlers_end)
/* Registers:
* SPRG_SCRATCH0: guest r4
* r4: vcpu pointer
* r5: KVM exit number
*/
_GLOBAL(kvmppc_resume_host)
mfcr r3
stw r3, VCPU_CR(r4)
stw r7, VCPU_GPR(R7)(r4)
stw r8, VCPU_GPR(R8)(r4)
stw r9, VCPU_GPR(R9)(r4)
li r6, 1
slw r6, r6, r5
#ifdef CONFIG_KVM_EXIT_TIMING
/* save exit time */
1:
mfspr r7, SPRN_TBRU
mfspr r8, SPRN_TBRL
mfspr r9, SPRN_TBRU
cmpw r9, r7
bne 1b
stw r8, VCPU_TIMING_EXIT_TBL(r4)
stw r9, VCPU_TIMING_EXIT_TBU(r4)
#endif
/* Save the faulting instruction and all GPRs for emulation. */
andi. r7, r6, NEED_INST_MASK
beq ..skip_inst_copy
mfspr r9, SPRN_SRR0
mfmsr r8
ori r7, r8, MSR_DS
mtmsr r7
isync
lwz r9, 0(r9)
mtmsr r8
isync
stw r9, VCPU_LAST_INST(r4)
stw r15, VCPU_GPR(R15)(r4)
stw r16, VCPU_GPR(R16)(r4)
stw r17, VCPU_GPR(R17)(r4)
stw r18, VCPU_GPR(R18)(r4)
stw r19, VCPU_GPR(R19)(r4)
stw r20, VCPU_GPR(R20)(r4)
stw r21, VCPU_GPR(R21)(r4)
stw r22, VCPU_GPR(R22)(r4)
stw r23, VCPU_GPR(R23)(r4)
stw r24, VCPU_GPR(R24)(r4)
stw r25, VCPU_GPR(R25)(r4)
stw r26, VCPU_GPR(R26)(r4)
stw r27, VCPU_GPR(R27)(r4)
stw r28, VCPU_GPR(R28)(r4)
stw r29, VCPU_GPR(R29)(r4)
stw r30, VCPU_GPR(R30)(r4)
stw r31, VCPU_GPR(R31)(r4)
..skip_inst_copy:
/* Also grab DEAR and ESR before the host can clobber them. */
andi. r7, r6, NEED_DEAR_MASK
beq ..skip_dear
mfspr r9, SPRN_DEAR
stw r9, VCPU_FAULT_DEAR(r4)
..skip_dear:
andi. r7, r6, NEED_ESR_MASK
beq ..skip_esr
mfspr r9, SPRN_ESR
stw r9, VCPU_FAULT_ESR(r4)
..skip_esr:
/* Save remaining volatile guest register state to vcpu. */
stw r0, VCPU_GPR(R0)(r4)
stw r1, VCPU_GPR(R1)(r4)
stw r2, VCPU_GPR(R2)(r4)
stw r10, VCPU_GPR(R10)(r4)
stw r11, VCPU_GPR(R11)(r4)
stw r12, VCPU_GPR(R12)(r4)
stw r13, VCPU_GPR(R13)(r4)
stw r14, VCPU_GPR(R14)(r4) /* We need a NV GPR below. */
mflr r3
stw r3, VCPU_LR(r4)
mfxer r3
stw r3, VCPU_XER(r4)
/* Restore host stack pointer and PID before IVPR, since the host
* exception handlers use them. */
lwz r1, VCPU_HOST_STACK(r4)
lwz r3, VCPU_HOST_PID(r4)
mtspr SPRN_PID, r3
#ifdef CONFIG_FSL_BOOKE
/* we cheat and know that Linux doesn't use PID1 which is always 0 */
lis r3, 0
mtspr SPRN_PID1, r3
#endif
/* Restore host IVPR before re-enabling interrupts. We cheat and know
* that Linux IVPR is always 0xc0000000. */
lis r3, 0xc000
mtspr SPRN_IVPR, r3
/* Switch to kernel stack and jump to handler. */
LOAD_REG_ADDR(r3, kvmppc_handle_exit)
mtctr r3
lwz r3, HOST_RUN(r1)
lwz r2, HOST_R2(r1)
mr r14, r4 /* Save vcpu pointer. */
bctrl /* kvmppc_handle_exit() */
/* Restore vcpu pointer and the nonvolatiles we used. */
mr r4, r14
lwz r14, VCPU_GPR(R14)(r4)
/* Sometimes instruction emulation must restore complete GPR state. */
andi. r5, r3, RESUME_FLAG_NV
beq ..skip_nv_load
lwz r15, VCPU_GPR(R15)(r4)
lwz r16, VCPU_GPR(R16)(r4)
lwz r17, VCPU_GPR(R17)(r4)
lwz r18, VCPU_GPR(R18)(r4)
lwz r19, VCPU_GPR(R19)(r4)
lwz r20, VCPU_GPR(R20)(r4)
lwz r21, VCPU_GPR(R21)(r4)
lwz r22, VCPU_GPR(R22)(r4)
lwz r23, VCPU_GPR(R23)(r4)
lwz r24, VCPU_GPR(R24)(r4)
lwz r25, VCPU_GPR(R25)(r4)
lwz r26, VCPU_GPR(R26)(r4)
lwz r27, VCPU_GPR(R27)(r4)
lwz r28, VCPU_GPR(R28)(r4)
lwz r29, VCPU_GPR(R29)(r4)
lwz r30, VCPU_GPR(R30)(r4)
lwz r31, VCPU_GPR(R31)(r4)
..skip_nv_load:
/* Should we return to the guest? */
andi. r5, r3, RESUME_FLAG_HOST
beq lightweight_exit
srawi r3, r3, 2 /* Shift -ERR back down. */
heavyweight_exit:
/* Not returning to guest. */
#ifdef CONFIG_SPE
/* save guest SPEFSCR and load host SPEFSCR */
mfspr r9, SPRN_SPEFSCR
stw r9, VCPU_SPEFSCR(r4)
lwz r9, VCPU_HOST_SPEFSCR(r4)
mtspr SPRN_SPEFSCR, r9
#endif
/* We already saved guest volatile register state; now save the
* non-volatiles. */
stw r15, VCPU_GPR(R15)(r4)
stw r16, VCPU_GPR(R16)(r4)
stw r17, VCPU_GPR(R17)(r4)
stw r18, VCPU_GPR(R18)(r4)
stw r19, VCPU_GPR(R19)(r4)
stw r20, VCPU_GPR(R20)(r4)
stw r21, VCPU_GPR(R21)(r4)
stw r22, VCPU_GPR(R22)(r4)
stw r23, VCPU_GPR(R23)(r4)
stw r24, VCPU_GPR(R24)(r4)
stw r25, VCPU_GPR(R25)(r4)
stw r26, VCPU_GPR(R26)(r4)
stw r27, VCPU_GPR(R27)(r4)
stw r28, VCPU_GPR(R28)(r4)
stw r29, VCPU_GPR(R29)(r4)
stw r30, VCPU_GPR(R30)(r4)
stw r31, VCPU_GPR(R31)(r4)
/* Load host non-volatile register state from host stack. */
lwz r14, HOST_NV_GPR(R14)(r1)
lwz r15, HOST_NV_GPR(R15)(r1)
lwz r16, HOST_NV_GPR(R16)(r1)
lwz r17, HOST_NV_GPR(R17)(r1)
lwz r18, HOST_NV_GPR(R18)(r1)
lwz r19, HOST_NV_GPR(R19)(r1)
lwz r20, HOST_NV_GPR(R20)(r1)
lwz r21, HOST_NV_GPR(R21)(r1)
lwz r22, HOST_NV_GPR(R22)(r1)
lwz r23, HOST_NV_GPR(R23)(r1)
lwz r24, HOST_NV_GPR(R24)(r1)
lwz r25, HOST_NV_GPR(R25)(r1)
lwz r26, HOST_NV_GPR(R26)(r1)
lwz r27, HOST_NV_GPR(R27)(r1)
lwz r28, HOST_NV_GPR(R28)(r1)
lwz r29, HOST_NV_GPR(R29)(r1)
lwz r30, HOST_NV_GPR(R30)(r1)
lwz r31, HOST_NV_GPR(R31)(r1)
/* Return to kvm_vcpu_run(). */
lwz r4, HOST_STACK_LR(r1)
lwz r5, HOST_CR(r1)
addi r1, r1, HOST_STACK_SIZE
mtlr r4
mtcr r5
/* r3 still contains the return code from kvmppc_handle_exit(). */
blr
/* Registers:
* r3: kvm_run pointer
* r4: vcpu pointer
*/
_GLOBAL(__kvmppc_vcpu_run)
stwu r1, -HOST_STACK_SIZE(r1)
stw r1, VCPU_HOST_STACK(r4) /* Save stack pointer to vcpu. */
/* Save host state to stack. */
stw r3, HOST_RUN(r1)
mflr r3
stw r3, HOST_STACK_LR(r1)
mfcr r5
stw r5, HOST_CR(r1)
/* Save host non-volatile register state to stack. */
stw r14, HOST_NV_GPR(R14)(r1)
stw r15, HOST_NV_GPR(R15)(r1)
stw r16, HOST_NV_GPR(R16)(r1)
stw r17, HOST_NV_GPR(R17)(r1)
stw r18, HOST_NV_GPR(R18)(r1)
stw r19, HOST_NV_GPR(R19)(r1)
stw r20, HOST_NV_GPR(R20)(r1)
stw r21, HOST_NV_GPR(R21)(r1)
stw r22, HOST_NV_GPR(R22)(r1)
stw r23, HOST_NV_GPR(R23)(r1)
stw r24, HOST_NV_GPR(R24)(r1)
stw r25, HOST_NV_GPR(R25)(r1)
stw r26, HOST_NV_GPR(R26)(r1)
stw r27, HOST_NV_GPR(R27)(r1)
stw r28, HOST_NV_GPR(R28)(r1)
stw r29, HOST_NV_GPR(R29)(r1)
stw r30, HOST_NV_GPR(R30)(r1)
stw r31, HOST_NV_GPR(R31)(r1)
/* Load guest non-volatiles. */
lwz r14, VCPU_GPR(R14)(r4)
lwz r15, VCPU_GPR(R15)(r4)
lwz r16, VCPU_GPR(R16)(r4)
lwz r17, VCPU_GPR(R17)(r4)
lwz r18, VCPU_GPR(R18)(r4)
lwz r19, VCPU_GPR(R19)(r4)
lwz r20, VCPU_GPR(R20)(r4)
lwz r21, VCPU_GPR(R21)(r4)
lwz r22, VCPU_GPR(R22)(r4)
lwz r23, VCPU_GPR(R23)(r4)
lwz r24, VCPU_GPR(R24)(r4)
lwz r25, VCPU_GPR(R25)(r4)
lwz r26, VCPU_GPR(R26)(r4)
lwz r27, VCPU_GPR(R27)(r4)
lwz r28, VCPU_GPR(R28)(r4)
lwz r29, VCPU_GPR(R29)(r4)
lwz r30, VCPU_GPR(R30)(r4)
lwz r31, VCPU_GPR(R31)(r4)
#ifdef CONFIG_SPE
/* save host SPEFSCR and load guest SPEFSCR */
mfspr r3, SPRN_SPEFSCR
stw r3, VCPU_HOST_SPEFSCR(r4)
lwz r3, VCPU_SPEFSCR(r4)
mtspr SPRN_SPEFSCR, r3
#endif
lightweight_exit:
stw r2, HOST_R2(r1)
mfspr r3, SPRN_PID
stw r3, VCPU_HOST_PID(r4)
lwz r3, VCPU_SHADOW_PID(r4)
mtspr SPRN_PID, r3
#ifdef CONFIG_FSL_BOOKE
lwz r3, VCPU_SHADOW_PID1(r4)
mtspr SPRN_PID1, r3
#endif
/* Load some guest volatiles. */
lwz r0, VCPU_GPR(R0)(r4)
lwz r2, VCPU_GPR(R2)(r4)
lwz r9, VCPU_GPR(R9)(r4)
lwz r10, VCPU_GPR(R10)(r4)
lwz r11, VCPU_GPR(R11)(r4)
lwz r12, VCPU_GPR(R12)(r4)
lwz r13, VCPU_GPR(R13)(r4)
lwz r3, VCPU_LR(r4)
mtlr r3
lwz r3, VCPU_XER(r4)
mtxer r3
/* Switch the IVPR. XXX If we take a TLB miss after this we're screwed,
* so how do we make sure vcpu won't fault? */
lis r8, kvmppc_booke_handlers@ha
lwz r8, kvmppc_booke_handlers@l(r8)
mtspr SPRN_IVPR, r8
lwz r5, VCPU_SHARED(r4)
/* Can't switch the stack pointer until after IVPR is switched,
* because host interrupt handlers would get confused. */
lwz r1, VCPU_GPR(R1)(r4)
/*
* Host interrupt handlers may have clobbered these
* guest-readable SPRGs, or the guest kernel may have
* written directly to the shared area, so we
* need to reload them here with the guest's values.
*/
PPC_LD(r3, VCPU_SHARED_SPRG4, r5)
mtspr SPRN_SPRG4W, r3
PPC_LD(r3, VCPU_SHARED_SPRG5, r5)
mtspr SPRN_SPRG5W, r3
PPC_LD(r3, VCPU_SHARED_SPRG6, r5)
mtspr SPRN_SPRG6W, r3
PPC_LD(r3, VCPU_SHARED_SPRG7, r5)
mtspr SPRN_SPRG7W, r3
#ifdef CONFIG_KVM_EXIT_TIMING
/* save enter time */
1:
mfspr r6, SPRN_TBRU
mfspr r7, SPRN_TBRL
mfspr r8, SPRN_TBRU
cmpw r8, r6
bne 1b
stw r7, VCPU_TIMING_LAST_ENTER_TBL(r4)
stw r8, VCPU_TIMING_LAST_ENTER_TBU(r4)
#endif
/* Finish loading guest volatiles and jump to guest. */
lwz r3, VCPU_CTR(r4)
lwz r5, VCPU_CR(r4)
lwz r6, VCPU_PC(r4)
lwz r7, VCPU_SHADOW_MSR(r4)
mtctr r3
mtcr r5
mtsrr0 r6
mtsrr1 r7
lwz r5, VCPU_GPR(R5)(r4)
lwz r6, VCPU_GPR(R6)(r4)
lwz r7, VCPU_GPR(R7)(r4)
lwz r8, VCPU_GPR(R8)(r4)
/* Clear any debug events which occurred since we disabled MSR[DE].
* XXX This gives us a 3-instruction window in which a breakpoint
* intended for guest context could fire in the host instead. */
lis r3, 0xffff
ori r3, r3, 0xffff
mtspr SPRN_DBSR, r3
lwz r3, VCPU_GPR(R3)(r4)
lwz r4, VCPU_GPR(R4)(r4)
rfi
.data
.align 4
.globl kvmppc_booke_handler_addr
kvmppc_booke_handler_addr:
KVM_HANDLER_ADDR BOOKE_INTERRUPT_CRITICAL
KVM_HANDLER_ADDR BOOKE_INTERRUPT_MACHINE_CHECK
KVM_HANDLER_ADDR BOOKE_INTERRUPT_DATA_STORAGE
KVM_HANDLER_ADDR BOOKE_INTERRUPT_INST_STORAGE
KVM_HANDLER_ADDR BOOKE_INTERRUPT_EXTERNAL
KVM_HANDLER_ADDR BOOKE_INTERRUPT_ALIGNMENT
KVM_HANDLER_ADDR BOOKE_INTERRUPT_PROGRAM
KVM_HANDLER_ADDR BOOKE_INTERRUPT_FP_UNAVAIL
KVM_HANDLER_ADDR BOOKE_INTERRUPT_SYSCALL
KVM_HANDLER_ADDR BOOKE_INTERRUPT_AP_UNAVAIL
KVM_HANDLER_ADDR BOOKE_INTERRUPT_DECREMENTER
KVM_HANDLER_ADDR BOOKE_INTERRUPT_FIT
KVM_HANDLER_ADDR BOOKE_INTERRUPT_WATCHDOG
KVM_HANDLER_ADDR BOOKE_INTERRUPT_DTLB_MISS
KVM_HANDLER_ADDR BOOKE_INTERRUPT_ITLB_MISS
KVM_HANDLER_ADDR BOOKE_INTERRUPT_DEBUG
KVM_HANDLER_ADDR BOOKE_INTERRUPT_SPE_UNAVAIL
KVM_HANDLER_ADDR BOOKE_INTERRUPT_SPE_FP_DATA
KVM_HANDLER_ADDR BOOKE_INTERRUPT_SPE_FP_ROUND
KVM_HANDLER_END /*Always keep this in end*/
#ifdef CONFIG_SPE
_GLOBAL(kvmppc_save_guest_spe)
cmpi 0,r3,0
beqlr-
SAVE_32EVRS(0, r4, r3, VCPU_EVR)
evxor evr6, evr6, evr6
evmwumiaa evr6, evr6, evr6
li r4,VCPU_ACC
evstddx evr6, r4, r3 /* save acc */
blr
_GLOBAL(kvmppc_load_guest_spe)
cmpi 0,r3,0
beqlr-
li r4,VCPU_ACC
evlddx evr6,r4,r3
evmra evr6,evr6 /* load acc */
REST_32EVRS(0, r4, r3, VCPU_EVR)
blr
#endif
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