diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s.c | 79 |
1 files changed, 39 insertions, 40 deletions
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index b998abf1a63d..a3cef30d1d42 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -1047,8 +1047,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; - vcpu_load(vcpu); - regs->pc = kvmppc_get_pc(vcpu); regs->cr = kvmppc_get_cr(vcpu); regs->ctr = kvmppc_get_ctr(vcpu); @@ -1069,8 +1067,6 @@ int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) regs->gpr[i] = kvmppc_get_gpr(vcpu, i); - vcpu_put(vcpu); - return 0; } @@ -1078,8 +1074,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; - vcpu_load(vcpu); - kvmppc_set_pc(vcpu, regs->pc); kvmppc_set_cr(vcpu, regs->cr); kvmppc_set_ctr(vcpu, regs->ctr); @@ -1099,8 +1093,6 @@ int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) kvmppc_set_gpr(vcpu, i, regs->gpr[i]); - vcpu_put(vcpu); - return 0; } @@ -1110,8 +1102,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu); int i; - vcpu_load(vcpu); - sregs->pvr = vcpu->arch.pvr; sregs->u.s.sdr1 = to_book3s(vcpu)->sdr1; @@ -1131,8 +1121,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, } } - vcpu_put(vcpu); - return 0; } @@ -1142,8 +1130,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu); int i; - vcpu_load(vcpu); - kvmppc_set_pvr(vcpu, sregs->pvr); vcpu3s->sdr1 = sregs->u.s.sdr1; @@ -1171,8 +1157,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, /* Flush the MMU after messing with the segments */ kvmppc_mmu_pte_flush(vcpu, 0, 0); - vcpu_put(vcpu); - return 0; } @@ -1309,12 +1293,17 @@ extern int __kvmppc_vcpu_entry(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu); int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) { int ret; - struct thread_struct ext_bkp; + double fpr[32][TS_FPRWIDTH]; + unsigned int fpscr; + int fpexc_mode; #ifdef CONFIG_ALTIVEC - bool save_vec = current->thread.used_vr; + vector128 vr[32]; + vector128 vscr; + unsigned long uninitialized_var(vrsave); + int used_vr; #endif #ifdef CONFIG_VSX - bool save_vsx = current->thread.used_vsr; + int used_vsr; #endif ulong ext_msr; @@ -1327,27 +1316,27 @@ int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) /* Save FPU state in stack */ if (current->thread.regs->msr & MSR_FP) giveup_fpu(current); - memcpy(ext_bkp.fpr, current->thread.fpr, sizeof(current->thread.fpr)); - ext_bkp.fpscr = current->thread.fpscr; - ext_bkp.fpexc_mode = current->thread.fpexc_mode; + memcpy(fpr, current->thread.fpr, sizeof(current->thread.fpr)); + fpscr = current->thread.fpscr.val; + fpexc_mode = current->thread.fpexc_mode; #ifdef CONFIG_ALTIVEC /* Save Altivec state in stack */ - if (save_vec) { + used_vr = current->thread.used_vr; + if (used_vr) { if (current->thread.regs->msr & MSR_VEC) giveup_altivec(current); - memcpy(ext_bkp.vr, current->thread.vr, sizeof(ext_bkp.vr)); - ext_bkp.vscr = current->thread.vscr; - ext_bkp.vrsave = current->thread.vrsave; + memcpy(vr, current->thread.vr, sizeof(current->thread.vr)); + vscr = current->thread.vscr; + vrsave = current->thread.vrsave; } - ext_bkp.used_vr = current->thread.used_vr; #endif #ifdef CONFIG_VSX /* Save VSX state in stack */ - if (save_vsx && (current->thread.regs->msr & MSR_VSX)) + used_vsr = current->thread.used_vsr; + if (used_vsr && (current->thread.regs->msr & MSR_VSX)) __giveup_vsx(current); - ext_bkp.used_vsr = current->thread.used_vsr; #endif /* Remember the MSR with disabled extensions */ @@ -1372,22 +1361,22 @@ int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) kvmppc_giveup_ext(vcpu, MSR_VSX); /* Restore FPU state from stack */ - memcpy(current->thread.fpr, ext_bkp.fpr, sizeof(ext_bkp.fpr)); - current->thread.fpscr = ext_bkp.fpscr; - current->thread.fpexc_mode = ext_bkp.fpexc_mode; + memcpy(current->thread.fpr, fpr, sizeof(current->thread.fpr)); + current->thread.fpscr.val = fpscr; + current->thread.fpexc_mode = fpexc_mode; #ifdef CONFIG_ALTIVEC /* Restore Altivec state from stack */ - if (save_vec && current->thread.used_vr) { - memcpy(current->thread.vr, ext_bkp.vr, sizeof(ext_bkp.vr)); - current->thread.vscr = ext_bkp.vscr; - current->thread.vrsave= ext_bkp.vrsave; + if (used_vr && current->thread.used_vr) { + memcpy(current->thread.vr, vr, sizeof(current->thread.vr)); + current->thread.vscr = vscr; + current->thread.vrsave = vrsave; } - current->thread.used_vr = ext_bkp.used_vr; + current->thread.used_vr = used_vr; #endif #ifdef CONFIG_VSX - current->thread.used_vsr = ext_bkp.used_vsr; + current->thread.used_vsr = used_vsr; #endif return ret; @@ -1395,12 +1384,22 @@ int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) static int kvmppc_book3s_init(void) { - return kvm_init(NULL, sizeof(struct kvmppc_vcpu_book3s), 0, - THIS_MODULE); + int r; + + r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_book3s), 0, + THIS_MODULE); + + if (r) + return r; + + r = kvmppc_mmu_hpte_sysinit(); + + return r; } static void kvmppc_book3s_exit(void) { + kvmppc_mmu_hpte_sysexit(); kvm_exit(); } |