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Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/kvm/book3s_emulate.c')
-rw-r--r--ANDROID_3.4.5/arch/powerpc/kvm/book3s_emulate.c592
1 files changed, 0 insertions, 592 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/kvm/book3s_emulate.c b/ANDROID_3.4.5/arch/powerpc/kvm/book3s_emulate.c
deleted file mode 100644
index 135663a3..00000000
--- a/ANDROID_3.4.5/arch/powerpc/kvm/book3s_emulate.c
+++ /dev/null
@@ -1,592 +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 SUSE Linux Products GmbH 2009
- *
- * Authors: Alexander Graf <agraf@suse.de>
- */
-
-#include <asm/kvm_ppc.h>
-#include <asm/disassemble.h>
-#include <asm/kvm_book3s.h>
-#include <asm/reg.h>
-#include <asm/switch_to.h>
-
-#define OP_19_XOP_RFID 18
-#define OP_19_XOP_RFI 50
-
-#define OP_31_XOP_MFMSR 83
-#define OP_31_XOP_MTMSR 146
-#define OP_31_XOP_MTMSRD 178
-#define OP_31_XOP_MTSR 210
-#define OP_31_XOP_MTSRIN 242
-#define OP_31_XOP_TLBIEL 274
-#define OP_31_XOP_TLBIE 306
-#define OP_31_XOP_SLBMTE 402
-#define OP_31_XOP_SLBIE 434
-#define OP_31_XOP_SLBIA 498
-#define OP_31_XOP_MFSR 595
-#define OP_31_XOP_MFSRIN 659
-#define OP_31_XOP_DCBA 758
-#define OP_31_XOP_SLBMFEV 851
-#define OP_31_XOP_EIOIO 854
-#define OP_31_XOP_SLBMFEE 915
-
-/* DCBZ is actually 1014, but we patch it to 1010 so we get a trap */
-#define OP_31_XOP_DCBZ 1010
-
-#define OP_LFS 48
-#define OP_LFD 50
-#define OP_STFS 52
-#define OP_STFD 54
-
-#define SPRN_GQR0 912
-#define SPRN_GQR1 913
-#define SPRN_GQR2 914
-#define SPRN_GQR3 915
-#define SPRN_GQR4 916
-#define SPRN_GQR5 917
-#define SPRN_GQR6 918
-#define SPRN_GQR7 919
-
-/* Book3S_32 defines mfsrin(v) - but that messes up our abstract
- * function pointers, so let's just disable the define. */
-#undef mfsrin
-
-enum priv_level {
- PRIV_PROBLEM = 0,
- PRIV_SUPER = 1,
- PRIV_HYPER = 2,
-};
-
-static bool spr_allowed(struct kvm_vcpu *vcpu, enum priv_level level)
-{
- /* PAPR VMs only access supervisor SPRs */
- if (vcpu->arch.papr_enabled && (level > PRIV_SUPER))
- return false;
-
- /* Limit user space to its own small SPR set */
- if ((vcpu->arch.shared->msr & MSR_PR) && level > PRIV_PROBLEM)
- return false;
-
- return true;
-}
-
-int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
- unsigned int inst, int *advance)
-{
- int emulated = EMULATE_DONE;
-
- switch (get_op(inst)) {
- case 19:
- switch (get_xop(inst)) {
- case OP_19_XOP_RFID:
- case OP_19_XOP_RFI:
- kvmppc_set_pc(vcpu, vcpu->arch.shared->srr0);
- kvmppc_set_msr(vcpu, vcpu->arch.shared->srr1);
- *advance = 0;
- break;
-
- default:
- emulated = EMULATE_FAIL;
- break;
- }
- break;
- case 31:
- switch (get_xop(inst)) {
- case OP_31_XOP_MFMSR:
- kvmppc_set_gpr(vcpu, get_rt(inst),
- vcpu->arch.shared->msr);
- break;
- case OP_31_XOP_MTMSRD:
- {
- ulong rs = kvmppc_get_gpr(vcpu, get_rs(inst));
- if (inst & 0x10000) {
- vcpu->arch.shared->msr &= ~(MSR_RI | MSR_EE);
- vcpu->arch.shared->msr |= rs & (MSR_RI | MSR_EE);
- } else
- kvmppc_set_msr(vcpu, rs);
- break;
- }
- case OP_31_XOP_MTMSR:
- kvmppc_set_msr(vcpu, kvmppc_get_gpr(vcpu, get_rs(inst)));
- break;
- case OP_31_XOP_MFSR:
- {
- int srnum;
-
- srnum = kvmppc_get_field(inst, 12 + 32, 15 + 32);
- if (vcpu->arch.mmu.mfsrin) {
- u32 sr;
- sr = vcpu->arch.mmu.mfsrin(vcpu, srnum);
- kvmppc_set_gpr(vcpu, get_rt(inst), sr);
- }
- break;
- }
- case OP_31_XOP_MFSRIN:
- {
- int srnum;
-
- srnum = (kvmppc_get_gpr(vcpu, get_rb(inst)) >> 28) & 0xf;
- if (vcpu->arch.mmu.mfsrin) {
- u32 sr;
- sr = vcpu->arch.mmu.mfsrin(vcpu, srnum);
- kvmppc_set_gpr(vcpu, get_rt(inst), sr);
- }
- break;
- }
- case OP_31_XOP_MTSR:
- vcpu->arch.mmu.mtsrin(vcpu,
- (inst >> 16) & 0xf,
- kvmppc_get_gpr(vcpu, get_rs(inst)));
- break;
- case OP_31_XOP_MTSRIN:
- vcpu->arch.mmu.mtsrin(vcpu,
- (kvmppc_get_gpr(vcpu, get_rb(inst)) >> 28) & 0xf,
- kvmppc_get_gpr(vcpu, get_rs(inst)));
- break;
- case OP_31_XOP_TLBIE:
- case OP_31_XOP_TLBIEL:
- {
- bool large = (inst & 0x00200000) ? true : false;
- ulong addr = kvmppc_get_gpr(vcpu, get_rb(inst));
- vcpu->arch.mmu.tlbie(vcpu, addr, large);
- break;
- }
- case OP_31_XOP_EIOIO:
- break;
- case OP_31_XOP_SLBMTE:
- if (!vcpu->arch.mmu.slbmte)
- return EMULATE_FAIL;
-
- vcpu->arch.mmu.slbmte(vcpu,
- kvmppc_get_gpr(vcpu, get_rs(inst)),
- kvmppc_get_gpr(vcpu, get_rb(inst)));
- break;
- case OP_31_XOP_SLBIE:
- if (!vcpu->arch.mmu.slbie)
- return EMULATE_FAIL;
-
- vcpu->arch.mmu.slbie(vcpu,
- kvmppc_get_gpr(vcpu, get_rb(inst)));
- break;
- case OP_31_XOP_SLBIA:
- if (!vcpu->arch.mmu.slbia)
- return EMULATE_FAIL;
-
- vcpu->arch.mmu.slbia(vcpu);
- break;
- case OP_31_XOP_SLBMFEE:
- if (!vcpu->arch.mmu.slbmfee) {
- emulated = EMULATE_FAIL;
- } else {
- ulong t, rb;
-
- rb = kvmppc_get_gpr(vcpu, get_rb(inst));
- t = vcpu->arch.mmu.slbmfee(vcpu, rb);
- kvmppc_set_gpr(vcpu, get_rt(inst), t);
- }
- break;
- case OP_31_XOP_SLBMFEV:
- if (!vcpu->arch.mmu.slbmfev) {
- emulated = EMULATE_FAIL;
- } else {
- ulong t, rb;
-
- rb = kvmppc_get_gpr(vcpu, get_rb(inst));
- t = vcpu->arch.mmu.slbmfev(vcpu, rb);
- kvmppc_set_gpr(vcpu, get_rt(inst), t);
- }
- break;
- case OP_31_XOP_DCBA:
- /* Gets treated as NOP */
- break;
- case OP_31_XOP_DCBZ:
- {
- ulong rb = kvmppc_get_gpr(vcpu, get_rb(inst));
- ulong ra = 0;
- ulong addr, vaddr;
- u32 zeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
- u32 dsisr;
- int r;
-
- if (get_ra(inst))
- ra = kvmppc_get_gpr(vcpu, get_ra(inst));
-
- addr = (ra + rb) & ~31ULL;
- if (!(vcpu->arch.shared->msr & MSR_SF))
- addr &= 0xffffffff;
- vaddr = addr;
-
- r = kvmppc_st(vcpu, &addr, 32, zeros, true);
- if ((r == -ENOENT) || (r == -EPERM)) {
- struct kvmppc_book3s_shadow_vcpu *svcpu;
-
- svcpu = svcpu_get(vcpu);
- *advance = 0;
- vcpu->arch.shared->dar = vaddr;
- svcpu->fault_dar = vaddr;
-
- dsisr = DSISR_ISSTORE;
- if (r == -ENOENT)
- dsisr |= DSISR_NOHPTE;
- else if (r == -EPERM)
- dsisr |= DSISR_PROTFAULT;
-
- vcpu->arch.shared->dsisr = dsisr;
- svcpu->fault_dsisr = dsisr;
- svcpu_put(svcpu);
-
- kvmppc_book3s_queue_irqprio(vcpu,
- BOOK3S_INTERRUPT_DATA_STORAGE);
- }
-
- break;
- }
- default:
- emulated = EMULATE_FAIL;
- }
- break;
- default:
- emulated = EMULATE_FAIL;
- }
-
- if (emulated == EMULATE_FAIL)
- emulated = kvmppc_emulate_paired_single(run, vcpu);
-
- return emulated;
-}
-
-void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat, bool upper,
- u32 val)
-{
- if (upper) {
- /* Upper BAT */
- u32 bl = (val >> 2) & 0x7ff;
- bat->bepi_mask = (~bl << 17);
- bat->bepi = val & 0xfffe0000;
- bat->vs = (val & 2) ? 1 : 0;
- bat->vp = (val & 1) ? 1 : 0;
- bat->raw = (bat->raw & 0xffffffff00000000ULL) | val;
- } else {
- /* Lower BAT */
- bat->brpn = val & 0xfffe0000;
- bat->wimg = (val >> 3) & 0xf;
- bat->pp = val & 3;
- bat->raw = (bat->raw & 0x00000000ffffffffULL) | ((u64)val << 32);
- }
-}
-
-static struct kvmppc_bat *kvmppc_find_bat(struct kvm_vcpu *vcpu, int sprn)
-{
- struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
- struct kvmppc_bat *bat;
-
- switch (sprn) {
- case SPRN_IBAT0U ... SPRN_IBAT3L:
- bat = &vcpu_book3s->ibat[(sprn - SPRN_IBAT0U) / 2];
- break;
- case SPRN_IBAT4U ... SPRN_IBAT7L:
- bat = &vcpu_book3s->ibat[4 + ((sprn - SPRN_IBAT4U) / 2)];
- break;
- case SPRN_DBAT0U ... SPRN_DBAT3L:
- bat = &vcpu_book3s->dbat[(sprn - SPRN_DBAT0U) / 2];
- break;
- case SPRN_DBAT4U ... SPRN_DBAT7L:
- bat = &vcpu_book3s->dbat[4 + ((sprn - SPRN_DBAT4U) / 2)];
- break;
- default:
- BUG();
- }
-
- return bat;
-}
-
-int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
-{
- int emulated = EMULATE_DONE;
- ulong spr_val = kvmppc_get_gpr(vcpu, rs);
-
- switch (sprn) {
- case SPRN_SDR1:
- if (!spr_allowed(vcpu, PRIV_HYPER))
- goto unprivileged;
- to_book3s(vcpu)->sdr1 = spr_val;
- break;
- case SPRN_DSISR:
- vcpu->arch.shared->dsisr = spr_val;
- break;
- case SPRN_DAR:
- vcpu->arch.shared->dar = spr_val;
- break;
- case SPRN_HIOR:
- to_book3s(vcpu)->hior = spr_val;
- break;
- case SPRN_IBAT0U ... SPRN_IBAT3L:
- case SPRN_IBAT4U ... SPRN_IBAT7L:
- case SPRN_DBAT0U ... SPRN_DBAT3L:
- case SPRN_DBAT4U ... SPRN_DBAT7L:
- {
- struct kvmppc_bat *bat = kvmppc_find_bat(vcpu, sprn);
-
- kvmppc_set_bat(vcpu, bat, !(sprn % 2), (u32)spr_val);
- /* BAT writes happen so rarely that we're ok to flush
- * everything here */
- kvmppc_mmu_pte_flush(vcpu, 0, 0);
- kvmppc_mmu_flush_segments(vcpu);
- break;
- }
- case SPRN_HID0:
- to_book3s(vcpu)->hid[0] = spr_val;
- break;
- case SPRN_HID1:
- to_book3s(vcpu)->hid[1] = spr_val;
- break;
- case SPRN_HID2:
- to_book3s(vcpu)->hid[2] = spr_val;
- break;
- case SPRN_HID2_GEKKO:
- to_book3s(vcpu)->hid[2] = spr_val;
- /* HID2.PSE controls paired single on gekko */
- switch (vcpu->arch.pvr) {
- case 0x00080200: /* lonestar 2.0 */
- case 0x00088202: /* lonestar 2.2 */
- case 0x70000100: /* gekko 1.0 */
- case 0x00080100: /* gekko 2.0 */
- case 0x00083203: /* gekko 2.3a */
- case 0x00083213: /* gekko 2.3b */
- case 0x00083204: /* gekko 2.4 */
- case 0x00083214: /* gekko 2.4e (8SE) - retail HW2 */
- case 0x00087200: /* broadway */
- if (vcpu->arch.hflags & BOOK3S_HFLAG_NATIVE_PS) {
- /* Native paired singles */
- } else if (spr_val & (1 << 29)) { /* HID2.PSE */
- vcpu->arch.hflags |= BOOK3S_HFLAG_PAIRED_SINGLE;
- kvmppc_giveup_ext(vcpu, MSR_FP);
- } else {
- vcpu->arch.hflags &= ~BOOK3S_HFLAG_PAIRED_SINGLE;
- }
- break;
- }
- break;
- case SPRN_HID4:
- case SPRN_HID4_GEKKO:
- to_book3s(vcpu)->hid[4] = spr_val;
- break;
- case SPRN_HID5:
- to_book3s(vcpu)->hid[5] = spr_val;
- /* guest HID5 set can change is_dcbz32 */
- if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
- (mfmsr() & MSR_HV))
- vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
- break;
- case SPRN_GQR0:
- case SPRN_GQR1:
- case SPRN_GQR2:
- case SPRN_GQR3:
- case SPRN_GQR4:
- case SPRN_GQR5:
- case SPRN_GQR6:
- case SPRN_GQR7:
- to_book3s(vcpu)->gqr[sprn - SPRN_GQR0] = spr_val;
- break;
- case SPRN_ICTC:
- case SPRN_THRM1:
- case SPRN_THRM2:
- case SPRN_THRM3:
- case SPRN_CTRLF:
- case SPRN_CTRLT:
- case SPRN_L2CR:
- case SPRN_MMCR0_GEKKO:
- case SPRN_MMCR1_GEKKO:
- case SPRN_PMC1_GEKKO:
- case SPRN_PMC2_GEKKO:
- case SPRN_PMC3_GEKKO:
- case SPRN_PMC4_GEKKO:
- case SPRN_WPAR_GEKKO:
- break;
-unprivileged:
- default:
- printk(KERN_INFO "KVM: invalid SPR write: %d\n", sprn);
-#ifndef DEBUG_SPR
- emulated = EMULATE_FAIL;
-#endif
- break;
- }
-
- return emulated;
-}
-
-int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
-{
- int emulated = EMULATE_DONE;
-
- switch (sprn) {
- case SPRN_IBAT0U ... SPRN_IBAT3L:
- case SPRN_IBAT4U ... SPRN_IBAT7L:
- case SPRN_DBAT0U ... SPRN_DBAT3L:
- case SPRN_DBAT4U ... SPRN_DBAT7L:
- {
- struct kvmppc_bat *bat = kvmppc_find_bat(vcpu, sprn);
-
- if (sprn % 2)
- kvmppc_set_gpr(vcpu, rt, bat->raw >> 32);
- else
- kvmppc_set_gpr(vcpu, rt, bat->raw);
-
- break;
- }
- case SPRN_SDR1:
- if (!spr_allowed(vcpu, PRIV_HYPER))
- goto unprivileged;
- kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->sdr1);
- break;
- case SPRN_DSISR:
- kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->dsisr);
- break;
- case SPRN_DAR:
- kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->dar);
- break;
- case SPRN_HIOR:
- kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hior);
- break;
- case SPRN_HID0:
- kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[0]);
- break;
- case SPRN_HID1:
- kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[1]);
- break;
- case SPRN_HID2:
- case SPRN_HID2_GEKKO:
- kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[2]);
- break;
- case SPRN_HID4:
- case SPRN_HID4_GEKKO:
- kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[4]);
- break;
- case SPRN_HID5:
- kvmppc_set_gpr(vcpu, rt, to_book3s(vcpu)->hid[5]);
- break;
- case SPRN_CFAR:
- case SPRN_PURR:
- kvmppc_set_gpr(vcpu, rt, 0);
- break;
- case SPRN_GQR0:
- case SPRN_GQR1:
- case SPRN_GQR2:
- case SPRN_GQR3:
- case SPRN_GQR4:
- case SPRN_GQR5:
- case SPRN_GQR6:
- case SPRN_GQR7:
- kvmppc_set_gpr(vcpu, rt,
- to_book3s(vcpu)->gqr[sprn - SPRN_GQR0]);
- break;
- case SPRN_THRM1:
- case SPRN_THRM2:
- case SPRN_THRM3:
- case SPRN_CTRLF:
- case SPRN_CTRLT:
- case SPRN_L2CR:
- case SPRN_MMCR0_GEKKO:
- case SPRN_MMCR1_GEKKO:
- case SPRN_PMC1_GEKKO:
- case SPRN_PMC2_GEKKO:
- case SPRN_PMC3_GEKKO:
- case SPRN_PMC4_GEKKO:
- case SPRN_WPAR_GEKKO:
- kvmppc_set_gpr(vcpu, rt, 0);
- break;
- default:
-unprivileged:
- printk(KERN_INFO "KVM: invalid SPR read: %d\n", sprn);
-#ifndef DEBUG_SPR
- emulated = EMULATE_FAIL;
-#endif
- break;
- }
-
- return emulated;
-}
-
-u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst)
-{
- u32 dsisr = 0;
-
- /*
- * This is what the spec says about DSISR bits (not mentioned = 0):
- *
- * 12:13 [DS] Set to bits 30:31
- * 15:16 [X] Set to bits 29:30
- * 17 [X] Set to bit 25
- * [D/DS] Set to bit 5
- * 18:21 [X] Set to bits 21:24
- * [D/DS] Set to bits 1:4
- * 22:26 Set to bits 6:10 (RT/RS/FRT/FRS)
- * 27:31 Set to bits 11:15 (RA)
- */
-
- switch (get_op(inst)) {
- /* D-form */
- case OP_LFS:
- case OP_LFD:
- case OP_STFD:
- case OP_STFS:
- dsisr |= (inst >> 12) & 0x4000; /* bit 17 */
- dsisr |= (inst >> 17) & 0x3c00; /* bits 18:21 */
- break;
- /* X-form */
- case 31:
- dsisr |= (inst << 14) & 0x18000; /* bits 15:16 */
- dsisr |= (inst << 8) & 0x04000; /* bit 17 */
- dsisr |= (inst << 3) & 0x03c00; /* bits 18:21 */
- break;
- default:
- printk(KERN_INFO "KVM: Unaligned instruction 0x%x\n", inst);
- break;
- }
-
- dsisr |= (inst >> 16) & 0x03ff; /* bits 22:31 */
-
- return dsisr;
-}
-
-ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst)
-{
- ulong dar = 0;
- ulong ra;
-
- switch (get_op(inst)) {
- case OP_LFS:
- case OP_LFD:
- case OP_STFD:
- case OP_STFS:
- ra = get_ra(inst);
- if (ra)
- dar = kvmppc_get_gpr(vcpu, ra);
- dar += (s32)((s16)inst);
- break;
- case 31:
- ra = get_ra(inst);
- if (ra)
- dar = kvmppc_get_gpr(vcpu, ra);
- dar += kvmppc_get_gpr(vcpu, get_rb(inst));
- break;
- default:
- printk(KERN_INFO "KVM: Unaligned instruction 0x%x\n", inst);
- break;
- }
-
- return dar;
-}
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