diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/kvm/book3s_hv_interrupts.S')
| -rw-r--r-- | ANDROID_3.4.5/arch/powerpc/kvm/book3s_hv_interrupts.S | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/kvm/book3s_hv_interrupts.S b/ANDROID_3.4.5/arch/powerpc/kvm/book3s_hv_interrupts.S deleted file mode 100644 index d3fb4df0..00000000 --- a/ANDROID_3.4.5/arch/powerpc/kvm/book3s_hv_interrupts.S +++ /dev/null @@ -1,170 +0,0 @@ -/* - * 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 2011 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com> - * - * Derived from book3s_interrupts.S, which is: - * Copyright SUSE Linux Products GmbH 2009 - * - * Authors: Alexander Graf <agraf@suse.de> - */ - -#include <asm/ppc_asm.h> -#include <asm/kvm_asm.h> -#include <asm/reg.h> -#include <asm/page.h> -#include <asm/asm-offsets.h> -#include <asm/exception-64s.h> -#include <asm/ppc-opcode.h> - -/***************************************************************************** - * * - * Guest entry / exit code that is in kernel module memory (vmalloc) * - * * - ****************************************************************************/ - -/* Registers: - * r4: vcpu pointer - */ -_GLOBAL(__kvmppc_vcore_entry) - - /* Write correct stack frame */ - mflr r0 - std r0,PPC_LR_STKOFF(r1) - - /* Save host state to the stack */ - stdu r1, -SWITCH_FRAME_SIZE(r1) - - /* Save non-volatile registers (r14 - r31) and CR */ - SAVE_NVGPRS(r1) - mfcr r3 - std r3, _CCR(r1) - - /* Save host DSCR */ -BEGIN_FTR_SECTION - mfspr r3, SPRN_DSCR - std r3, HSTATE_DSCR(r13) -END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206) - - /* Save host DABR */ - mfspr r3, SPRN_DABR - std r3, HSTATE_DABR(r13) - - /* Hard-disable interrupts */ - mfmsr r10 - std r10, HSTATE_HOST_MSR(r13) - rldicl r10,r10,48,1 - rotldi r10,r10,16 - mtmsrd r10,1 - - /* Save host PMU registers and load guest PMU registers */ - /* R4 is live here (vcpu pointer) but not r3 or r5 */ - li r3, 1 - sldi r3, r3, 31 /* MMCR0_FC (freeze counters) bit */ - mfspr r7, SPRN_MMCR0 /* save MMCR0 */ - mtspr SPRN_MMCR0, r3 /* freeze all counters, disable interrupts */ - isync - ld r3, PACALPPACAPTR(r13) /* is the host using the PMU? */ - lbz r5, LPPACA_PMCINUSE(r3) - cmpwi r5, 0 - beq 31f /* skip if not */ - mfspr r5, SPRN_MMCR1 - mfspr r6, SPRN_MMCRA - std r7, HSTATE_MMCR(r13) - std r5, HSTATE_MMCR + 8(r13) - std r6, HSTATE_MMCR + 16(r13) - mfspr r3, SPRN_PMC1 - mfspr r5, SPRN_PMC2 - mfspr r6, SPRN_PMC3 - mfspr r7, SPRN_PMC4 - mfspr r8, SPRN_PMC5 - mfspr r9, SPRN_PMC6 -BEGIN_FTR_SECTION - mfspr r10, SPRN_PMC7 - mfspr r11, SPRN_PMC8 -END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201) - stw r3, HSTATE_PMC(r13) - stw r5, HSTATE_PMC + 4(r13) - stw r6, HSTATE_PMC + 8(r13) - stw r7, HSTATE_PMC + 12(r13) - stw r8, HSTATE_PMC + 16(r13) - stw r9, HSTATE_PMC + 20(r13) -BEGIN_FTR_SECTION - stw r10, HSTATE_PMC + 24(r13) - stw r11, HSTATE_PMC + 28(r13) -END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201) -31: - - /* - * Put whatever is in the decrementer into the - * hypervisor decrementer. - */ - mfspr r8,SPRN_DEC - mftb r7 - mtspr SPRN_HDEC,r8 - extsw r8,r8 - add r8,r8,r7 - std r8,HSTATE_DECEXP(r13) - - /* - * On PPC970, if the guest vcpu has an external interrupt pending, - * send ourselves an IPI so as to interrupt the guest once it - * enables interrupts. (It must have interrupts disabled, - * otherwise we would already have delivered the interrupt.) - */ -BEGIN_FTR_SECTION - ld r0, VCPU_PENDING_EXC(r4) - li r7, (1 << BOOK3S_IRQPRIO_EXTERNAL) - oris r7, r7, (1 << BOOK3S_IRQPRIO_EXTERNAL_LEVEL)@h - and. r0, r0, r7 - beq 32f - mr r31, r4 - lhz r3, PACAPACAINDEX(r13) - bl smp_send_reschedule - nop - mr r4, r31 -32: -END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201) - - /* Jump to partition switch code */ - bl .kvmppc_hv_entry_trampoline - nop - -/* - * We return here in virtual mode after the guest exits - * with something that we can't handle in real mode. - * Interrupts are enabled again at this point. - */ - -.global kvmppc_handler_highmem -kvmppc_handler_highmem: - - /* - * Register usage at this point: - * - * R1 = host R1 - * R2 = host R2 - * R12 = exit handler id - * R13 = PACA - */ - - /* Restore non-volatile host registers (r14 - r31) and CR */ - REST_NVGPRS(r1) - ld r4, _CCR(r1) - mtcr r4 - - addi r1, r1, SWITCH_FRAME_SIZE - ld r0, PPC_LR_STKOFF(r1) - mtlr r0 - blr |