Commit 1910ad56 authored by Thomas Gleixner's avatar Thomas Gleixner

x86/cpu/intel: Evaluate smp_num_siblings early

Make use of the new early detection function to initialize smp_num_siblings
on the boot cpu before the MP-Table or ACPI/MADT scan happens. That's
required for force disabling SMT.
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: default avatarIngo Molnar <mingo@kernel.org>
parent 95f3d39c
...@@ -301,6 +301,13 @@ static void early_init_intel(struct cpuinfo_x86 *c) ...@@ -301,6 +301,13 @@ static void early_init_intel(struct cpuinfo_x86 *c)
} }
check_mpx_erratum(c); check_mpx_erratum(c);
/*
* Get the number of SMT siblings early from the extended topology
* leaf, if available. Otherwise try the legacy SMT detection.
*/
if (detect_extended_topology_early(c) < 0)
detect_ht_early(c);
} }
#ifdef CONFIG_X86_32 #ifdef CONFIG_X86_32
......
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