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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-02-15 14:13:17 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-02-15 14:13:17 +0000 |
| commit | 3bbf83843ccc4547c839c4cfe05cb70e3dc92a49 (patch) | |
| tree | aa67fdee6d43f1daaa9f4aa3f95636e335528d67 /xen/arch/x86/hvm/irq.c | |
| parent | 1546fd3f23cfb591cf02ef7da72d6e7e908e3504 (diff) | |
| download | xen-3bbf83843ccc4547c839c4cfe05cb70e3dc92a49.tar.gz xen-3bbf83843ccc4547c839c4cfe05cb70e3dc92a49.tar.bz2 xen-3bbf83843ccc4547c839c4cfe05cb70e3dc92a49.zip | |
Enable HVM guest VT-d device hotplug via a simple ACPI hotplug device model.
** Currently only 2 virtual hotplug pci slots(6~7) are created so more
than 2 vtd dev can't be hotplugged, but we can easily extend it in
future.
Three new commands are added:
"xm pci-list domid" show the current assigned vtd device, like:
VSlt domain bus slot func
0x6 0x0 0x02 0x00 0x0
"xm pci-detach" hot remove the specified vtd device by the virtual
slot, like:
xm pci-detach EdwinHVMDomainVtd 6
"xm pci-attach DomainID dom bus dev func [vslot]" hot add a new vtd
device in the vslot. If no vslot specified, a free slot will be picked
up. e.g. to insert '0000:03:00.0':
xm pci-attach EdwinHVMDomainVtd 0 3 0 0
** guest pci hotplug
linux: pls. use 2.6.X and enable ACPI PCI hotplug ( Bus options=> PCI
hotplug => ACPI PCI hotplug driver )
windows: 2000/xp/2003/vista are all okay
Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>
Diffstat (limited to 'xen/arch/x86/hvm/irq.c')
| -rw-r--r-- | xen/arch/x86/hvm/irq.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/xen/arch/x86/hvm/irq.c b/xen/arch/x86/hvm/irq.c index 072452a861..97eb25f9cb 100644 --- a/xen/arch/x86/hvm/irq.c +++ b/xen/arch/x86/hvm/irq.c @@ -211,8 +211,7 @@ void hvm_set_pci_link_route(struct domain *d, u8 link, u8 isa_irq) clear_bit(old_isa_irq, &hvm_irq->dpci->isairq_map); for ( i = 0; i < NR_LINK; i++ ) - if ( test_bit(i, &hvm_irq->dpci->link_map) && - hvm_irq->pci_link.route[i] ) + if ( hvm_irq->dpci->link_cnt[i] && hvm_irq->pci_link.route[i] ) set_bit(hvm_irq->pci_link.route[i], &hvm_irq->dpci->isairq_map); } |