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Howeve= r in apic_x2apic_probe() such flag is incorrectly used to gate whether Physical = mode can be used. Since Xen when in x2APIC mode only uses Logical mode together with Cluster model completely remove checking for ACPI_FADT_APIC_CLUSTER, as Xen always fulfills the requirement signaled by the flag. Fixes: eb40ae41b658 ('x86/Kconfig: add option for default x2APIC destinatio= n mode') Signed-off-by: Roger Pau Monn=C3=A9 Reviewed-by: Jan Beulich --- xen/arch/x86/genapic/x2apic.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/xen/arch/x86/genapic/x2apic.c b/xen/arch/x86/genapic/x2apic.c index ca1db27157e2..707deef98c27 100644 --- a/xen/arch/x86/genapic/x2apic.c +++ b/xen/arch/x86/genapic/x2apic.c @@ -231,8 +231,7 @@ const struct genapic *__init apic_x2apic_probe(void) */ x2apic_phys =3D iommu_intremap !=3D iommu_intremap_full || (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) || - (IS_ENABLED(CONFIG_X2APIC_PHYSICAL) && - !(acpi_gbl_FADT.flags & ACPI_FADT_APIC_CLUSTER)); + IS_ENABLED(CONFIG_X2APIC_PHYSICAL); } else if ( !x2apic_phys ) switch ( iommu_intremap ) --=20 2.42.0