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KVM: Use pci_store/load_saved_state() around VM device usage

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Store the device saved state so that we can reload the device back
to the original state when it's unassigned.  This has the benefit
that the state survives across pci_reset_function() calls via
the PCI sysfs reset interface while the VM is using the device.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Alex Williamson 2011-05-10 10:02:39 -06:00 • committed by Jesse Barnes
parent ffbdd3f793
commit f8fcfd7755
2 changed files with 15 additions and 4 deletions
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include/linux/kvm_host.h
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@ -513,6 +513,7 @@ struct kvm_assigned_dev_kernel {
struct kvm *kvm;
spinlock_t intx_lock;
char irq_name[32];
struct pci_saved_state *pci_saved_state;
};
struct kvm_irq_mask_notifier {