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| author | Paul Mackerras <paulus@samba.org> | 2011-06-29 00:19:50 +0000 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-07-12 13:16:51 +0300 |
| commit | df6909e5d52f67be01862c5cb453e509aee661f1 (patch) | |
| tree | aab39c039a693e5381f922df4125aa7b72be681c /arch/powerpc/kvm | |
| parent | f9e0554deca54a42fb2cf7f68c05a4a37461c205 (diff) | |
| download | linux-df6909e5d52f67be01862c5cb453e509aee661f1.tar.gz linux-df6909e5d52f67be01862c5cb453e509aee661f1.tar.bz2 linux-df6909e5d52f67be01862c5cb453e509aee661f1.zip | |
KVM: PPC: Move guest enter/exit down into subarch-specific code
Instead of doing the kvm_guest_enter/exit() and local_irq_dis/enable()
calls in powerpc.c, this moves them down into the subarch-specific
book3s_pr.c and booke.c. This eliminates an extra local_irq_enable()
call in book3s_pr.c, and will be needed for when we do SMT4 guest
support in the book3s hypervisor mode code.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s_interrupts.S | 2 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_pr.c | 12 | ||||
| -rw-r--r-- | arch/powerpc/kvm/booke.c | 13 | ||||
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 6 |
4 files changed, 21 insertions, 12 deletions
diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S index 2f0bc928b08a..8c5e0e160107 100644 --- a/arch/powerpc/kvm/book3s_interrupts.S +++ b/arch/powerpc/kvm/book3s_interrupts.S @@ -85,7 +85,7 @@ * r3: kvm_run pointer * r4: vcpu pointer */ -_GLOBAL(__kvmppc_vcpu_entry) +_GLOBAL(__kvmppc_vcpu_run) kvm_start_entry: /* Write correct stack frame */ diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 72b20b8749fa..0c0d3f274437 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -891,8 +891,7 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu) vfree(vcpu_book3s); } -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 kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) { int ret; double fpr[32][TS_FPRWIDTH]; @@ -944,14 +943,15 @@ int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) /* Remember the MSR with disabled extensions */ ext_msr = current->thread.regs->msr; - /* XXX we get called with irq disabled - change that! */ - local_irq_enable(); - /* Preload FPU if it's enabled */ if (vcpu->arch.shared->msr & MSR_FP) kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP); - ret = __kvmppc_vcpu_entry(kvm_run, vcpu); + kvm_guest_enter(); + + ret = __kvmppc_vcpu_run(kvm_run, vcpu); + + kvm_guest_exit(); local_irq_disable(); diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index 9066325b23b2..ee45fa01220e 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -312,6 +312,19 @@ void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu) vcpu->arch.shared->int_pending = 0; } +int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) +{ + int ret; + + local_irq_disable(); + kvm_guest_enter(); + ret = __kvmppc_vcpu_run(kvm_run, vcpu); + kvm_guest_exit(); + local_irq_enable(); + + return ret; +} + /** * kvmppc_handle_exit * diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 0c80e159c138..026036efcde0 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -500,11 +500,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) kvmppc_core_deliver_interrupts(vcpu); - local_irq_disable(); - kvm_guest_enter(); - r = __kvmppc_vcpu_run(run, vcpu); - kvm_guest_exit(); - local_irq_enable(); + r = kvmppc_vcpu_run(run, vcpu); if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); |