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28b50463c9
When a VM is configured with LAPIC PT mode and its vCPU is in x2APIC mode, the corresponding pCPU needs to be reset during VM shutdown/reset as its physical LAPIC was used by its guest. This commit fixes an issue where this reset never happens. is_lapic_pt_enabled() needs to be called before reset_vcpu() to be able to correctly reflect a vCPU's APIC mode. A vCPU with LAPIC PT mode but in xAPIC mode does not require such reset, since its physical LAPIC was not touched by its guest directly. v2 -> v3: - refine edge case detection logic v1 -> v2: - use a separate function to return the bitmap of LAPIC PT enabled pCPUs Tracked-On: #3708 Signed-off-by: Peter Fang <peter.fang@intel.com> Reviewed-by: Eddie Dong <eddie.dong@intel.com> Reviewed-by: Jack Ren <jack.ren@intel.com>