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| author | Takuya Yoshikawa | 2011-03-05 04:40:20 +0100 |
|---|---|---|
| committer | Marcelo Tosatti | 2011-03-17 17:08:33 +0100 |
| commit | afc20184b7d24693a934f652e135598a497c9448 (patch) | |
| tree | ae400e86dd91278c54489de0bb7e82212e11fd42 | |
| parent | KVM: improve comment on rcu use in irqfd_deassign (diff) | |
| download | kernel-qcow2-linux-afc20184b7d24693a934f652e135598a497c9448.tar.gz kernel-qcow2-linux-afc20184b7d24693a934f652e135598a497c9448.tar.xz kernel-qcow2-linux-afc20184b7d24693a934f652e135598a497c9448.zip | |
KVM: x86: Remove useless regs_page pointer from kvm_lapic
Access to this page is mostly done through the regs member which holds
the address to this page. The exceptions are in vmx_vcpu_reset() and
kvm_free_lapic() and these both can easily be converted to using regs.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
| -rw-r--r-- | arch/x86/kvm/lapic.c | 9 | ||||
| -rw-r--r-- | arch/x86/kvm/lapic.h | 1 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.c | 2 |
3 files changed, 5 insertions, 7 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 0171e66e9994..2b2255b1f04b 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -871,8 +871,8 @@ void kvm_free_lapic(struct kvm_vcpu *vcpu) hrtimer_cancel(&vcpu->arch.apic->lapic_timer.timer); - if (vcpu->arch.apic->regs_page) - __free_page(vcpu->arch.apic->regs_page); + if (vcpu->arch.apic->regs) + free_page((unsigned long)vcpu->arch.apic->regs); kfree(vcpu->arch.apic); } @@ -1061,13 +1061,12 @@ int kvm_create_lapic(struct kvm_vcpu *vcpu) vcpu->arch.apic = apic; - apic->regs_page = alloc_page(GFP_KERNEL|__GFP_ZERO); - if (apic->regs_page == NULL) { + apic->regs = (void *)get_zeroed_page(GFP_KERNEL); + if (!apic->regs) { printk(KERN_ERR "malloc apic regs error for vcpu %x\n", vcpu->vcpu_id); goto nomem_free_apic; } - apic->regs = page_address(apic->regs_page); apic->vcpu = vcpu; hrtimer_init(&apic->lapic_timer.timer, CLOCK_MONOTONIC, diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h index f5fe32c5edad..52c9e6b9e725 100644 --- a/arch/x86/kvm/lapic.h +++ b/arch/x86/kvm/lapic.h @@ -13,7 +13,6 @@ struct kvm_lapic { u32 divide_count; struct kvm_vcpu *vcpu; bool irr_pending; - struct page *regs_page; void *regs; gpa_t vapic_addr; struct page *vapic_page; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index e2b8c6b21ff2..3febb763cb7f 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2821,7 +2821,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu) vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, 0); if (vm_need_tpr_shadow(vmx->vcpu.kvm)) vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, - page_to_phys(vmx->vcpu.arch.apic->regs_page)); + __pa(vmx->vcpu.arch.apic->regs)); vmcs_write32(TPR_THRESHOLD, 0); } |