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DM: increase vioapic pin count

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Current only 8 vioapic pins for pci irq (total 24 with 16 reserved),
which easily leads virtual GSI sharing with more and more passthrough
devices. This patch doulbes vioapic pin count and adds reboot hooks to
allocate from same pin after each reboot.

Signed-off-by: Edwin Zhai <edwin.zhai@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Edwin Zhai
2018-05-15 09:32:29 +08:00
committed by lijinxia
parent e1bb372763
commit 30549a59c7
6 changed files with 25 additions and 22 deletions
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1
devicemodel/include/ioapic.h
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@@ -36,6 +36,7 @@ struct pci_vdev;
* Allocate a PCI IRQ from the I/O APIC.
*/
void ioapic_init(struct vmctx *ctx);
void ioapic_deinit(void);
int ioapic_pci_alloc_irq(struct pci_vdev *pi);
#endif