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hv: pirq: remove support of physical irq sharing

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Because multiple physical devices sharing a single physical pin would be
assigned to a same VM, so UOS could handle the irq sharing. So that we could
remove the physical irq sharing support in HV.

This commit removes the irq sharing support, changes including:
 - removed the dev_list field in irq_desc, and clean up codes for the list
   operation;
 - replace IRQ_ASSIGNED_SHARED and IRQ_ASSIGNED_NOSHARE with IRQ_ASSIGNED;
 - remove argument indicating irq is shared;
 - revise irq request flow for pt devices to remove dependency on irq sharing:
   register irq on adding remapping entery and unregister irq on removal an
   entry, and do not register/unregister at remapping an entry.

Signed-off-by: Yan, Like <like.yan@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Yan, Like
2018-08-09 16:44:04 +08:00
committed by lijinxia
parent 6744a179fc
commit d773df9135
5 changed files with 62 additions and 132 deletions
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2
hypervisor/common/ptdev.c
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@@ -135,7 +135,7 @@ ptdev_activate_entry(struct ptdev_remapping_info *entry, uint32_t phys_irq)
/* register and allocate host vector/irq */
node = normal_register_handler(phys_irq, ptdev_interrupt_handler,
(void *)entry, true, "dev assign");
(void *)entry, "dev assign");
ASSERT(node != NULL, "dev register failed");
entry->node = node;