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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-05 13:12:34 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-05 13:12:34 -0800
commitc812a51d11bbe983f4c24e32b59b265705ddd3c2 (patch)
treed454f518db51a4de700cf3dcd4c3c71ee7288b47 /virt/kvm/assigned-dev.c
parent9467c4fdd66f6810cecef0f1173330f3c6e67d45 (diff)
parentd2be1651b736002e0c76d7095d6c0ba77b4a897c (diff)
Merge branch 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (145 commits) KVM: x86: Add KVM_CAP_X86_ROBUST_SINGLESTEP KVM: VMX: Update instruction length on intercepted BP KVM: Fix emulate_sys[call, enter, exit]()'s fault handling KVM: Fix segment descriptor loading KVM: Fix load_guest_segment_descriptor() to inject page fault KVM: x86 emulator: Forbid modifying CS segment register by mov instruction KVM: Convert kvm->requests_lock to raw_spinlock_t KVM: Convert i8254/i8259 locks to raw_spinlocks KVM: x86 emulator: disallow opcode 82 in 64-bit mode KVM: x86 emulator: code style cleanup KVM: Plan obsolescence of kernel allocated slots, paravirt mmu KVM: x86 emulator: Add LOCK prefix validity checking KVM: x86 emulator: Check CPL level during privilege instruction emulation KVM: x86 emulator: Fix popf emulation KVM: x86 emulator: Check IOPL level during io instruction emulation KVM: x86 emulator: fix memory access during x86 emulation KVM: x86 emulator: Add Virtual-8086 mode of emulation KVM: x86 emulator: Add group9 instruction decoding KVM: x86 emulator: Add group8 instruction decoding KVM: do not store wqh in irqfd ... Trivial conflicts in Documentation/feature-removal-schedule.txt
Diffstat (limited to 'virt/kvm/assigned-dev.c')
-rw-r--r--virt/kvm/assigned-dev.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c
index f73de631e3e..057e2cca6af 100644
--- a/virt/kvm/assigned-dev.c
+++ b/virt/kvm/assigned-dev.c
@@ -504,12 +504,12 @@ out:
static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
struct kvm_assigned_pci_dev *assigned_dev)
{
- int r = 0;
+ int r = 0, idx;
struct kvm_assigned_dev_kernel *match;
struct pci_dev *dev;
mutex_lock(&kvm->lock);
- down_read(&kvm->slots_lock);
+ idx = srcu_read_lock(&kvm->srcu);
match = kvm_find_assigned_dev(&kvm->arch.assigned_dev_head,
assigned_dev->assigned_dev_id);
@@ -526,7 +526,8 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
r = -ENOMEM;
goto out;
}
- dev = pci_get_bus_and_slot(assigned_dev->busnr,
+ dev = pci_get_domain_bus_and_slot(assigned_dev->segnr,
+ assigned_dev->busnr,
assigned_dev->devfn);
if (!dev) {
printk(KERN_INFO "%s: host device not found\n", __func__);
@@ -548,6 +549,7 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
pci_reset_function(dev);
match->assigned_dev_id = assigned_dev->assigned_dev_id;
+ match->host_segnr = assigned_dev->segnr;
match->host_busnr = assigned_dev->busnr;
match->host_devfn = assigned_dev->devfn;
match->flags = assigned_dev->flags;
@@ -573,7 +575,7 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm,
}
out:
- up_read(&kvm->slots_lock);
+ srcu_read_unlock(&kvm->srcu, idx);
mutex_unlock(&kvm->lock);
return r;
out_list_del:
@@ -585,7 +587,7 @@ out_put:
pci_dev_put(dev);
out_free:
kfree(match);
- up_read(&kvm->slots_lock);
+ srcu_read_unlock(&kvm->srcu, idx);
mutex_unlock(&kvm->lock);
return r;
}