Paolo Bonzini f439ed27f8 kvm: do not handle APIC access page if in-kernel irqchip is not in use ... This fixes the following OOPS: loaded kvm module (v3.17-rc1-168-gcec26bc) BUG: unable to handle kernel paging request at fffffffffffffffe IP: [<ffffffff81168449>] put_page+0x9/0x30 PGD 1e15067 PUD 1e17067 PMD 0 Oops: 0000 [#1] PREEMPT SMP [<ffffffffa063271d>] ? kvm_vcpu_reload_apic_access_page+0x5d/0x70 [kvm] [<ffffffffa013b6db>] vmx_vcpu_reset+0x21b/0x470 [kvm_intel] [<ffffffffa0658816>] ? kvm_pmu_reset+0x76/0xb0 [kvm] [<ffffffffa064032a>] kvm_vcpu_reset+0x15a/0x1b0 [kvm] [<ffffffffa06403ac>] kvm_arch_vcpu_setup+0x2c/0x50 [kvm] [<ffffffffa062e540>] kvm_vm_ioctl+0x200/0x780 [kvm] [<ffffffff81212170>] do_vfs_ioctl+0x2d0/0x4b0 [<ffffffff8108bd99>] ? __mmdrop+0x69/0xb0 [<ffffffff812123d1>] SyS_ioctl+0x81/0xa0 [<ffffffff8112a6f6>] ? __audit_syscall_exit+0x1f6/0x2a0 [<ffffffff817229e9>] system_call_fastpath+0x16/0x1b Code: c6 78 ce a3 81 4c 89 e7 e8 d9 80 ff ff 0f 0b 4c 89 e7 e8 8f f6 ff ff e9 fa fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 <48> f7 07 00 c0 00 00 55 48 89 e5 75 1e 8b 47 1c 85 c0 74 27 f0 RIP [<ffffffff81193045>] put_page+0x5/0x50 when not using the in-kernel irqchip ("-machine kernel_irqchip=off" with QEMU). The fix is to make the same check in kvm_vcpu_reload_apic_access_page that we already have in vmx.c's vm_need_virtualize_apic_accesses(). Reported-by: Jan Kiszka <jan.kiszka@siemens.com> Tested-by: Jan Kiszka <jan.kiszka@siemens.com> Fixes: 4256f43f9f Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2014-10-02 19:26:11 +02:00
..
cpuid.c	KVM: nested VMX: disable perf cpuid reporting	2014-09-24 14:07:50 +02:00
cpuid.h	KVM: x86: Warn if guest virtual address space is not 48-bits	2014-09-24 14:07:48 +02:00
emulate.c	KVM: x86: emulating descriptor load misses long-mode case	2014-09-24 14:07:52 +02:00
i8254.c	KVM: x86: limit PIT timer frequency	2014-01-15 12:43:54 +01:00
i8254.h	KVM: fold kvm_pit_timer into kvm_kpit_state	2012-08-01 00:21:07 -03:00
i8259.c	KVM: inject ExtINT interrupt before APIC interrupts	2012-12-13 23:05:21 -02:00
irq.c	KVM: nVMX: fix "acknowledge interrupt on exit" when APICv is in use	2014-08-05 15:00:24 +02:00
irq.h	KVM: switch to symbolic name for irq_states size	2012-07-20 16:12:16 -03:00
Kconfig	KVM: Give IRQFD its own separate enabling Kconfig option	2014-08-05 14:26:28 +02:00
kvm_cache_regs.h	KVM: MMU: Do not unconditionally read PDPTE from guest memory	2011-09-25 19:18:01 +03:00
lapic.c	KVM: x86: make apic_accept_irq tracepoint more generic	2014-09-11 11:51:02 +02:00
lapic.h	KVM: x86: Validate guest writes to MSR_IA32_APICBASE	2014-01-27 14:39:44 +01:00
Makefile	kvm: Add VFIO device	2013-10-30 19:02:03 +01:00
mmu_audit.c	arch/x86: replace strict_strto calls	2014-08-08 15:57:28 -07:00
mmu.c	kvm: Fix page ageing bugs	2014-09-24 14:07:58 +02:00
mmu.h	KVM: mmio: cleanup kvm_set_mmio_spte_mask	2014-09-03 10:04:10 +02:00
mmutrace.h	x86/kvm: Resolve shadow warnings in macro expansion	2014-07-31 16:33:29 +02:00
paging_tmpl.h	KVM: x86: Remove debug assertion of non-PAE reserved bits	2014-09-24 14:07:55 +02:00
pmu.c	KVM: x86: Clarify PMU related features bit manipulation	2014-08-20 13:01:25 +02:00
svm.c	kvm: Use APIC_DEFAULT_PHYS_BASE macro as the apic access page address.	2014-09-11 11:10:22 +02:00
trace.h	KVM: x86: make apic_accept_irq tracepoint more generic	2014-09-11 11:51:02 +02:00
tss.h
vmx.c	kvm: x86: Unpin and remove kvm_arch->apic_access_page	2014-09-24 14:08:01 +02:00
x86.c	kvm: do not handle APIC access page if in-kernel irqchip is not in use	2014-10-02 19:26:11 +02:00
x86.h	KVM: vmx: Inject #GP on invalid PAT CR	2014-09-24 14:07:52 +02:00