diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/kvm/44x_emulate.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/powerpc/kvm/44x_emulate.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/kvm/44x_emulate.c b/ANDROID_3.4.5/arch/powerpc/kvm/44x_emulate.c deleted file mode 100644 index 549bb2c9..00000000 --- a/ANDROID_3.4.5/arch/powerpc/kvm/44x_emulate.c +++ /dev/null @@ -1,183 +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 XOP_MFDCR 323 -#define XOP_MTDCR 451 -#define XOP_TLBSX 914 -#define XOP_ICCCI 966 -#define XOP_TLBWE 978 - -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 31: - switch (get_xop(inst)) { - - 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: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.cpr0_cfgaddr); - break; - case DCRN_CPR0_CONFIG_DATA: - local_irq_disable(); - mtdcr(DCRN_CPR0_CONFIG_ADDR, - vcpu->arch.cpr0_cfgaddr); - kvmppc_set_gpr(vcpu, 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 = kvmppc_get_gpr(vcpu, rs); - break; - default: - run->dcr.dcrn = dcrn; - run->dcr.data = kvmppc_get_gpr(vcpu, 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; - } - - if (emulated == EMULATE_FAIL) - emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance); - - return emulated; -} - -int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs) -{ - int emulated = EMULATE_DONE; - - switch (sprn) { - case SPRN_PID: - kvmppc_set_pid(vcpu, kvmppc_get_gpr(vcpu, rs)); break; - case SPRN_MMUCR: - vcpu->arch.mmucr = kvmppc_get_gpr(vcpu, rs); break; - case SPRN_CCR0: - vcpu->arch.ccr0 = kvmppc_get_gpr(vcpu, rs); break; - case SPRN_CCR1: - vcpu->arch.ccr1 = kvmppc_get_gpr(vcpu, rs); break; - default: - emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs); - } - - return emulated; -} - -int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) -{ - int emulated = EMULATE_DONE; - - switch (sprn) { - case SPRN_PID: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.pid); break; - case SPRN_MMUCR: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.mmucr); break; - case SPRN_CCR0: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.ccr0); break; - case SPRN_CCR1: - kvmppc_set_gpr(vcpu, rt, vcpu->arch.ccr1); break; - default: - emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt); - } - - return emulated; -} - |