Messages in this thread |  | | Date | Fri, 19 Apr 2024 13:52:55 +0200 | | Subject | Re: [PATCH 1/2] x86/cpu: fix BSP detection when running as Xen PV guest | | From | Juergen Gross <> |
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On 05.04.24 14:34, Juergen Gross wrote: > When booting as a Xen PV guest the boot processor isn't detected > correctly and the following message is shown: > > CPU topo: Boot CPU APIC ID not the first enumerated APIC ID: 0 > 1 > > Additionally this results in one CPU being ignored. > > Fix that by calling the BSP detection logic when registering the boot > CPU's APIC, too. > > Fixes: 5c5682b9f87a ("x86/cpu: Detect real BSP on crash kernels") > Signed-off-by: Juergen Gross <jgross@suse.com> > --- > arch/x86/kernel/cpu/topology.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kernel/cpu/topology.c b/arch/x86/kernel/cpu/topology.c > index aaca8d235dc2..23c3db5e6396 100644 > --- a/arch/x86/kernel/cpu/topology.c > +++ b/arch/x86/kernel/cpu/topology.c > @@ -255,7 +255,7 @@ void __init topology_register_boot_apic(u32 apic_id) > WARN_ON_ONCE(topo_info.boot_cpu_apic_id != BAD_APICID); > > topo_info.boot_cpu_apic_id = apic_id; > - topo_register_apic(apic_id, CPU_ACPIID_INVALID, true); > + topology_register_apic(apic_id, CPU_ACPIID_INVALID, true); > } > > /**
[unhandled content-type:application/pgp-keys][unhandled content-type:application/pgp-signature] |  |