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Merge branch 'kvm-updates/3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm

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* 'kvm-updates/3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (75 commits)
  KVM: SVM: Keep intercepting task switching with NPT enabled
  KVM: s390: implement sigp external call
  KVM: s390: fix register setting
  KVM: s390: fix return value of kvm_arch_init_vm
  KVM: s390: check cpu_id prior to using it
  KVM: emulate lapic tsc deadline timer for guest
  x86: TSC deadline definitions
  KVM: Fix simultaneous NMIs
  KVM: x86 emulator: convert push %sreg/pop %sreg to direct decode
  KVM: x86 emulator: switch lds/les/lss/lfs/lgs to direct decode
  KVM: x86 emulator: streamline decode of segment registers
  KVM: x86 emulator: simplify OpMem64 decode
  KVM: x86 emulator: switch src decode to decode_operand()
  KVM: x86 emulator: qualify OpReg inhibit_byte_regs hack
  KVM: x86 emulator: switch OpImmUByte decode to decode_imm()
  KVM: x86 emulator: free up some flag bits near src, dst
  KVM: x86 emulator: switch src2 to generic decode_operand()
  KVM: x86 emulator: expand decode flags to 64 bits
  KVM: x86 emulator: split dst decode to a generic decode_operand()
  KVM: x86 emulator: move memop, memopp into emulation context
  ...
This commit is contained in:
Linus Torvalds
2011-10-30 15:36:45 -07:00
parent acff987d94 f1c1da2bde
commit 1bc87b0055
60 changed files with 2480 additions and 1400 deletions
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64
virt/kvm/assigned-dev.c
View File

@ -58,8 +58,6 @@ static int find_index_from_host_irq(struct kvm_assigned_dev_kernel
static irqreturn_t kvm_assigned_dev_thread(int irq, void *dev_id)
{
struct kvm_assigned_dev_kernel *assigned_dev = dev_id;
u32 vector;
int index;
if (assigned_dev->irq_requested_type & KVM_DEV_IRQ_HOST_INTX) {
spin_lock(&assigned_dev->intx_lock);
@ -68,31 +66,35 @@ static irqreturn_t kvm_assigned_dev_thread(int irq, void *dev_id)
spin_unlock(&assigned_dev->intx_lock);
}
if (assigned_dev->irq_requested_type & KVM_DEV_IRQ_HOST_MSIX) {
index = find_index_from_host_irq(assigned_dev, irq);
if (index >= 0) {
vector = assigned_dev->
guest_msix_entries[index].vector;
kvm_set_irq(assigned_dev->kvm,
assigned_dev->irq_source_id, vector, 1);
}
} else
kvm_set_irq(assigned_dev->kvm, assigned_dev->irq_source_id,
assigned_dev->guest_irq, 1);
kvm_set_irq(assigned_dev->kvm, assigned_dev->irq_source_id,
assigned_dev->guest_irq, 1);
return IRQ_HANDLED;
}
#ifdef __KVM_HAVE_MSIX
static irqreturn_t kvm_assigned_dev_thread_msix(int irq, void *dev_id)
{
struct kvm_assigned_dev_kernel *assigned_dev = dev_id;
int index = find_index_from_host_irq(assigned_dev, irq);
u32 vector;
if (index >= 0) {
vector = assigned_dev->guest_msix_entries[index].vector;
kvm_set_irq(assigned_dev->kvm, assigned_dev->irq_source_id,
vector, 1);
}
return IRQ_HANDLED;
}
#endif
/* Ack the irq line for an assigned device */
static void kvm_assigned_dev_ack_irq(struct kvm_irq_ack_notifier *kian)
{
struct kvm_assigned_dev_kernel *dev;
if (kian->gsi == -1)
return;
dev = container_of(kian, struct kvm_assigned_dev_kernel,
ack_notifier);
struct kvm_assigned_dev_kernel *dev =
container_of(kian, struct kvm_assigned_dev_kernel,
ack_notifier);
kvm_set_irq(dev->kvm, dev->irq_source_id, dev->guest_irq, 0);
@ -110,8 +112,9 @@ static void kvm_assigned_dev_ack_irq(struct kvm_irq_ack_notifier *kian)
static void deassign_guest_irq(struct kvm *kvm,
struct kvm_assigned_dev_kernel *assigned_dev)
{
kvm_unregister_irq_ack_notifier(kvm, &assigned_dev->ack_notifier);
assigned_dev->ack_notifier.gsi = -1;
if (assigned_dev->ack_notifier.gsi != -1)
kvm_unregister_irq_ack_notifier(kvm,
&assigned_dev->ack_notifier);
kvm_set_irq(assigned_dev->kvm, assigned_dev->irq_source_id,
assigned_dev->guest_irq, 0);
@ -143,7 +146,7 @@ static void deassign_host_irq(struct kvm *kvm,
for (i = 0; i < assigned_dev->entries_nr; i++)
free_irq(assigned_dev->host_msix_entries[i].vector,
(void *)assigned_dev);
assigned_dev);
assigned_dev->entries_nr = 0;
kfree(assigned_dev->host_msix_entries);
@ -153,7 +156,7 @@ static void deassign_host_irq(struct kvm *kvm,
/* Deal with MSI and INTx */
disable_irq(assigned_dev->host_irq);
free_irq(assigned_dev->host_irq, (void *)assigned_dev);
free_irq(assigned_dev->host_irq, assigned_dev);
if (assigned_dev->irq_requested_type & KVM_DEV_IRQ_HOST_MSI)
pci_disable_msi(assigned_dev->dev);
@ -239,7 +242,7 @@ static int assigned_device_enable_host_intx(struct kvm *kvm,
* are going to be long delays in accepting, acking, etc.
*/
if (request_threaded_irq(dev->host_irq, NULL, kvm_assigned_dev_thread,
IRQF_ONESHOT, dev->irq_name, (void *)dev))
IRQF_ONESHOT, dev->irq_name, dev))
return -EIO;
return 0;
}
@ -258,7 +261,7 @@ static int assigned_device_enable_host_msi(struct kvm *kvm,
dev->host_irq = dev->dev->irq;
if (request_threaded_irq(dev->host_irq, NULL, kvm_assigned_dev_thread,
0, dev->irq_name, (void *)dev)) {
0, dev->irq_name, dev)) {
pci_disable_msi(dev->dev);
return -EIO;
}
@ -284,8 +287,8 @@ static int assigned_device_enable_host_msix(struct kvm *kvm,
for (i = 0; i < dev->entries_nr; i++) {
r = request_threaded_irq(dev->host_msix_entries[i].vector,
NULL, kvm_assigned_dev_thread,
0, dev->irq_name, (void *)dev);
NULL, kvm_assigned_dev_thread_msix,
0, dev->irq_name, dev);
if (r)
goto err;
}
@ -293,7 +296,7 @@ static int assigned_device_enable_host_msix(struct kvm *kvm,
return 0;
err:
for (i -= 1; i >= 0; i--)
free_irq(dev->host_msix_entries[i].vector, (void *)dev);
free_irq(dev->host_msix_entries[i].vector, dev);
pci_disable_msix(dev->dev);
return r;
}
@ -406,7 +409,8 @@ static int assign_guest_irq(struct kvm *kvm,
if (!r) {
dev->irq_requested_type |= guest_irq_type;
kvm_register_irq_ack_notifier(kvm, &dev->ack_notifier);
if (dev->ack_notifier.gsi != -1)
kvm_register_irq_ack_notifier(kvm, &dev->ack_notifier);
} else
kvm_free_irq_source_id(kvm, dev->irq_source_id);