Merge tag 'kvm-3.7-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Avi Kivity:
 "KVM updates for 3.7-rc2"

* tag 'kvm-3.7-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM guest: exit idleness when handling KVM_PV_REASON_PAGE_NOT_PRESENT
  KVM: apic: fix LDR calculation in x2apic mode
  KVM: MMU: fix release noslot pfn

diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index b3e5e51bc907ef4da71549ff7e2214467721af0a..4180a874c764d4df9d514648082eee5ac6907930 100644 (file)
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -247,7 +247,10 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
                break;
        case KVM_PV_REASON_PAGE_NOT_PRESENT:
                /* page is swapped out by the host. */
+               rcu_irq_enter();
+               exit_idle();
                kvm_async_pf_task_wait((u32)read_cr2());
+               rcu_irq_exit();
                break;
        case KVM_PV_REASON_PAGE_READY:
                rcu_irq_enter();

diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index c6e6b721b6ee3a38d6267ee8867bd029fbdc6d6a..43e9fadca5d080a4e98a65735cbe071102742911 100644 (file)
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1311,7 +1311,7 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value)
        vcpu->arch.apic_base = value;
        if (apic_x2apic_mode(apic)) {
                u32 id = kvm_apic_id(apic);
-               u32 ldr = ((id & ~0xf) << 16) | (1 << (id & 0xf));
+               u32 ldr = ((id >> 4) << 16) | (1 << (id & 0xf));
                kvm_apic_set_ldr(apic, ldr);
        }
        apic->base_address = apic->vcpu->arch.apic_base &

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d289fee1ffb8631c0b93f663104965fe7def7b11..6f85fe0bf958987f0275f1fa25e2b9e5240aad02 100644 (file)
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2497,8 +2497,7 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
                }
        }
 
-       if (!is_error_pfn(pfn))
-               kvm_release_pfn_clean(pfn);
+       kvm_release_pfn_clean(pfn);
 }
 
 static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index e59bb63cb089634c7d9bed701be0581bf536726a..be70035fd42a14edad4c24ae411c4b9d3fdf396c 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1322,9 +1322,7 @@ EXPORT_SYMBOL_GPL(kvm_release_page_clean);
 
 void kvm_release_pfn_clean(pfn_t pfn)
 {
-       WARN_ON(is_error_pfn(pfn));
-
-       if (!kvm_is_mmio_pfn(pfn))
+       if (!is_error_pfn(pfn) && !kvm_is_mmio_pfn(pfn))
                put_page(pfn_to_page(pfn));
 }
 EXPORT_SYMBOL_GPL(kvm_release_pfn_clean);