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Diffstat (limited to 'arch/powerpc/kvm/44x_emulate.c')
-rw-r--r--arch/powerpc/kvm/44x_emulate.c371
1 files changed, 0 insertions, 371 deletions
diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c
deleted file mode 100644
index 82489a743a6f..000000000000
--- a/arch/powerpc/kvm/44x_emulate.c
+++ /dev/null
@@ -1,371 +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 IBM Corp. 2008
- *
- * Authors: Hollis Blanchard <hollisb@us.ibm.com>
- */
-
-#include <asm/kvm_ppc.h>
-#include <asm/dcr.h>
-#include <asm/dcr-regs.h>
-#include <asm/disassemble.h>
-#include <asm/kvm_44x.h>
-#include "timing.h"
-
-#include "booke.h"
-#include "44x_tlb.h"
-
-#define OP_RFI 19
-
-#define XOP_RFI 50
-#define XOP_MFMSR 83
-#define XOP_WRTEE 131
-#define XOP_MTMSR 146
-#define XOP_WRTEEI 163
-#define XOP_MFDCR 323
-#define XOP_MTDCR 451
-#define XOP_TLBSX 914
-#define XOP_ICCCI 966
-#define XOP_TLBWE 978
-
-static void kvmppc_emul_rfi(struct kvm_vcpu *vcpu)
-{
- vcpu->arch.pc = vcpu->arch.srr0;
- kvmppc_set_msr(vcpu, vcpu->arch.srr1);
-}
-
-int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
- unsigned int inst, int *advance)
-{
- int emulated = EMULATE_DONE;
- int dcrn;
- int ra;
- int rb;
- int rc;
- int rs;
- int rt;
- int ws;
-
- switch (get_op(inst)) {
- case OP_RFI:
- switch (get_xop(inst)) {
- case XOP_RFI:
- kvmppc_emul_rfi(vcpu);
- kvmppc_set_exit_type(vcpu, EMULATED_RFI_EXITS);
- *advance = 0;
- break;
-
- default:
- emulated = EMULATE_FAIL;
- break;
- }
- break;
-
- case 31:
- switch (get_xop(inst)) {
-
- case XOP_MFMSR:
- rt = get_rt(inst);
- vcpu->arch.gpr[rt] = vcpu->arch.msr;
- kvmppc_set_exit_type(vcpu, EMULATED_MFMSR_EXITS);
- break;
-
- case XOP_MTMSR:
- rs = get_rs(inst);
- kvmppc_set_exit_type(vcpu, EMULATED_MTMSR_EXITS);
- kvmppc_set_msr(vcpu, vcpu->arch.gpr[rs]);
- break;
-
- case XOP_WRTEE:
- rs = get_rs(inst);
- vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
- | (vcpu->arch.gpr[rs] & MSR_EE);
- kvmppc_set_exit_type(vcpu, EMULATED_WRTEE_EXITS);
- break;
-
- case XOP_WRTEEI:
- vcpu->arch.msr = (vcpu->arch.msr & ~MSR_EE)
- | (inst & MSR_EE);
- kvmppc_set_exit_type(vcpu, EMULATED_WRTEE_EXITS);
- break;
-
- case XOP_MFDCR:
- dcrn = get_dcrn(inst);
- rt = get_rt(inst);
-
- /* The guest may access CPR0 registers to determine the timebase
- * frequency, and it must know the real host frequency because it
- * can directly access the timebase registers.
- *
- * It would be possible to emulate those accesses in userspace,
- * but userspace can really only figure out the end frequency.
- * We could decompose that into the factors that compute it, but
- * that's tricky math, and it's easier to just report the real
- * CPR0 values.
- */
- switch (dcrn) {
- case DCRN_CPR0_CONFIG_ADDR:
- vcpu->arch.gpr[rt] = vcpu->arch.cpr0_cfgaddr;
- break;
- case DCRN_CPR0_CONFIG_DATA:
- local_irq_disable();
- mtdcr(DCRN_CPR0_CONFIG_ADDR,
- vcpu->arch.cpr0_cfgaddr);
- vcpu->arch.gpr[rt] = mfdcr(DCRN_CPR0_CONFIG_DATA);
- local_irq_enable();
- break;
- default:
- run->dcr.dcrn = dcrn;
- run->dcr.data = 0;
- run->dcr.is_write = 0;
- vcpu->arch.io_gpr = rt;
- vcpu->arch.dcr_needed = 1;
- kvmppc_account_exit(vcpu, DCR_EXITS);
- emulated = EMULATE_DO_DCR;
- }
-
- break;
-
- case XOP_MTDCR:
- dcrn = get_dcrn(inst);
- rs = get_rs(inst);
-
- /* emulate some access in kernel */
- switch (dcrn) {
- case DCRN_CPR0_CONFIG_ADDR:
- vcpu->arch.cpr0_cfgaddr = vcpu->arch.gpr[rs];
- break;
- default:
- run->dcr.dcrn = dcrn;
- run->dcr.data = vcpu->arch.gpr[rs];
- run->dcr.is_write = 1;
- vcpu->arch.dcr_needed = 1;
- kvmppc_account_exit(vcpu, DCR_EXITS);
- emulated = EMULATE_DO_DCR;
- }
-
- break;
-
- case XOP_TLBWE:
- ra = get_ra(inst);
- rs = get_rs(inst);
- ws = get_ws(inst);
- emulated = kvmppc_44x_emul_tlbwe(vcpu, ra, rs, ws);
- break;
-
- case XOP_TLBSX:
- rt = get_rt(inst);
- ra = get_ra(inst);
- rb = get_rb(inst);
- rc = get_rc(inst);
- emulated = kvmppc_44x_emul_tlbsx(vcpu, rt, ra, rb, rc);
- break;
-
- case XOP_ICCCI:
- break;
-
- default:
- emulated = EMULATE_FAIL;
- }
-
- break;
-
- default:
- emulated = EMULATE_FAIL;
- }
-
- return emulated;
-}
-
-int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
-{
- switch (sprn) {
- case SPRN_MMUCR:
- vcpu->arch.mmucr = vcpu->arch.gpr[rs]; break;
- case SPRN_PID:
- kvmppc_set_pid(vcpu, vcpu->arch.gpr[rs]); break;
- case SPRN_CCR0:
- vcpu->arch.ccr0 = vcpu->arch.gpr[rs]; break;
- case SPRN_CCR1:
- vcpu->arch.ccr1 = vcpu->arch.gpr[rs]; break;
- case SPRN_DEAR:
- vcpu->arch.dear = vcpu->arch.gpr[rs]; break;
- case SPRN_ESR:
- vcpu->arch.esr = vcpu->arch.gpr[rs]; break;
- case SPRN_DBCR0:
- vcpu->arch.dbcr0 = vcpu->arch.gpr[rs]; break;
- case SPRN_DBCR1:
- vcpu->arch.dbcr1 = vcpu->arch.gpr[rs]; break;
- case SPRN_TSR:
- vcpu->arch.tsr &= ~vcpu->arch.gpr[rs]; break;
- case SPRN_TCR:
- vcpu->arch.tcr = vcpu->arch.gpr[rs];
- kvmppc_emulate_dec(vcpu);
- break;
-
- /* Note: SPRG4-7 are user-readable. These values are
- * loaded into the real SPRGs when resuming the
- * guest. */
- case SPRN_SPRG4:
- vcpu->arch.sprg4 = vcpu->arch.gpr[rs]; break;
- case SPRN_SPRG5:
- vcpu->arch.sprg5 = vcpu->arch.gpr[rs]; break;
- case SPRN_SPRG6:
- vcpu->arch.sprg6 = vcpu->arch.gpr[rs]; break;
- case SPRN_SPRG7:
- vcpu->arch.sprg7 = vcpu->arch.gpr[rs]; break;
-
- case SPRN_IVPR:
- vcpu->arch.ivpr = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR0:
- vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR1:
- vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR2:
- vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR3:
- vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR4:
- vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR5:
- vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR6:
- vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR7:
- vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR8:
- vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR9:
- vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR10:
- vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR11:
- vcpu->arch.ivor[BOOKE_IRQPRIO_FIT] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR12:
- vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR13:
- vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR14:
- vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS] = vcpu->arch.gpr[rs];
- break;
- case SPRN_IVOR15:
- vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG] = vcpu->arch.gpr[rs];
- break;
-
- default:
- return EMULATE_FAIL;
- }
-
- kvmppc_set_exit_type(vcpu, EMULATED_MTSPR_EXITS);
- return EMULATE_DONE;
-}
-
-int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
-{
- switch (sprn) {
- /* 440 */
- case SPRN_MMUCR:
- vcpu->arch.gpr[rt] = vcpu->arch.mmucr; break;
- case SPRN_CCR0:
- vcpu->arch.gpr[rt] = vcpu->arch.ccr0; break;
- case SPRN_CCR1:
- vcpu->arch.gpr[rt] = vcpu->arch.ccr1; break;
-
- /* Book E */
- case SPRN_PID:
- vcpu->arch.gpr[rt] = vcpu->arch.pid; break;
- case SPRN_IVPR:
- vcpu->arch.gpr[rt] = vcpu->arch.ivpr; break;
- case SPRN_DEAR:
- vcpu->arch.gpr[rt] = vcpu->arch.dear; break;
- case SPRN_ESR:
- vcpu->arch.gpr[rt] = vcpu->arch.esr; break;
- case SPRN_DBCR0:
- vcpu->arch.gpr[rt] = vcpu->arch.dbcr0; break;
- case SPRN_DBCR1:
- vcpu->arch.gpr[rt] = vcpu->arch.dbcr1; break;
-
- case SPRN_IVOR0:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL];
- break;
- case SPRN_IVOR1:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK];
- break;
- case SPRN_IVOR2:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE];
- break;
- case SPRN_IVOR3:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE];
- break;
- case SPRN_IVOR4:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL];
- break;
- case SPRN_IVOR5:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT];
- break;
- case SPRN_IVOR6:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM];
- break;
- case SPRN_IVOR7:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL];
- break;
- case SPRN_IVOR8:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL];
- break;
- case SPRN_IVOR9:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL];
- break;
- case SPRN_IVOR10:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER];
- break;
- case SPRN_IVOR11:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_FIT];
- break;
- case SPRN_IVOR12:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG];
- break;
- case SPRN_IVOR13:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS];
- break;
- case SPRN_IVOR14:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS];
- break;
- case SPRN_IVOR15:
- vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG];
- break;
-
- default:
- return EMULATE_FAIL;
- }
-
- kvmppc_set_exit_type(vcpu, EMULATED_MFSPR_EXITS);
- return EMULATE_DONE;
-}
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 13:52:56 +0000