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authorTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>2011-03-05 12:40:20 +0900
committerMarcelo Tosatti <mtosatti@redhat.com>2011-03-17 13:08:33 -0300
commitafc20184b7d24693a934f652e135598a497c9448 (patch)
treeae400e86dd91278c54489de0bb7e82212e11fd42 /arch
parentc8ce057eafd49da6a7afe7791bd84163f65f6132 (diff)
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kvm/lapic.c9
-rw-r--r--arch/x86/kvm/lapic.h1
-rw-r--r--arch/x86/kvm/vmx.c2
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);
}