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hv: rework EOI_EXIT_BITMAP update logic

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This commit changes the EOI_EXIT_BITMAP as follows:
- add a eoi_exit_bitmap to vlapic structure;
- go through all the RTEs and set eoi_exit_bitmap in the vlapic structure when related RTE fields are modified;
- add ACRN_REQUEST_EOI_EXIT_UPDATE, if eoi_exit_bitmap changed, request the corresponding vcpu to write the bitmap
  to VMCS.

Tracked-On: #2343
Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yan, Like
2019-01-14 17:20:50 +08:00
committed by wenlingz
parent f15cc7d6de
commit fc61536b07
5 changed files with 150 additions and 10 deletions
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4
hypervisor/arch/x86/virq.c
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@@ -409,6 +409,10 @@ int32_t acrn_handle_pending_request(struct acrn_vcpu *vcpu)
vioapic_update_tmr(vcpu);
}
if (bitmap_test_and_clear_lock(ACRN_REQUEST_EOI_EXIT_UPDATE, pending_req_bits)) {
vcpu_set_vmcs_eoi_exit(vcpu);
}
/* handling cancelled event injection when vcpu is switched out */
if (arch->inject_event_pending) {
if ((arch->inject_info.intr_info & (EXCEPTION_ERROR_CODE_VALID << 8U)) != 0U) {