David Matlack 2ea75be321 kvm: don't take vcpu mutex for obviously invalid vcpu ioctls ... vcpu ioctls can hang the calling thread if issued while a vcpu is running. However, invalid ioctls can happen when userspace tries to probe the kind of file descriptors (e.g. isatty() calls ioctl(TCGETS)); in that case, we know the ioctl is going to be rejected as invalid anyway and we can fail before trying to take the vcpu mutex. This patch does not change functionality, it just makes invalid ioctls fail faster. Cc: stable@vger.kernel.org Signed-off-by: David Matlack <dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2014-09-24 14:07:55 +02:00
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arm	KVM: ARM: vgic: register kvm_device_ops dynamically	2014-09-17 13:10:09 +02:00
assigned-dev.c	virt/kvm/assigned-dev.c: Set 'dev->irq_source_id' to '-1' after free it	2014-08-19 15:12:28 +02:00
async_pf.c	kvm: Faults which trigger IO release the mmap_sem	2014-09-24 14:07:54 +02:00
async_pf.h	KVM: Halt vcpu if page it tries to access is swapped out	2011-01-12 11:21:39 +02:00
coalesced_mmio.c	KVM: return an error code in kvm_vm_ioctl_register_coalesced_mmio()	2014-01-30 11:56:09 +01:00
coalesced_mmio.h	KVM: Make coalesced mmio use a device per zone	2011-09-25 19:17:57 +03:00
eventfd.c	KVM: EVENTFD: Remove inclusion of irq.h	2014-09-24 12:06:25 +02:00
ioapic.c	kvm: ioapic: conditionally delay irq delivery duringeoi broadcast	2014-09-16 14:44:48 +02:00
ioapic.h	kvm: ioapic: conditionally delay irq delivery duringeoi broadcast	2014-09-16 14:44:48 +02:00
iodev.h	KVM: remove in_range from io devices	2009-09-10 08:33:05 +03:00
iommu.c	kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)	2014-08-19 15:04:45 +02:00
irq_comm.c	KVM: Move all accesses to kvm::irq_routing into irqchip.c	2014-08-05 14:26:20 +02:00
irqchip.c	KVM: Move irq notifier implementation into eventfd.c	2014-08-05 14:26:24 +02:00
Kconfig	KVM: Give IRQFD its own separate enabling Kconfig option	2014-08-05 14:26:28 +02:00
kvm_main.c	kvm: don't take vcpu mutex for obviously invalid vcpu ioctls	2014-09-24 14:07:55 +02:00
vfio.c	kvm-vfio: do not use module_init	2014-09-24 14:06:36 +02:00
vfio.h	kvm-vfio: do not use module_init	2014-09-24 14:06:36 +02:00