The following commit has been merged into the x86/apic branch of tip:
Commit-ID: 55cc40d3df3c5c49f3a72e451bb710ec9e398ddc
Gitweb: https://git.kernel.org/tip/55cc40d3df3c5c49f3a72e451bb710ec9e398ddc
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Tue, 08 Aug 2023 15:03:50 -07:00
Committer: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
CommitterDate: Wed, 09 Aug 2023 11:58:22 -07:00
x86/apic: Nuke another processor check
The boot CPUs local APIC is now always registered, so there is no point to
have another unreadable validatation for it.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Tested-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
Tested-by: Sohil Mehta <sohil.mehta@xxxxxxxxx>
Tested-by: Juergen Gross <jgross@xxxxxxxx> # Xen PV (dom0 and unpriv. guest)
---
arch/x86/kernel/smpboot.c | 17 -----------------
1 file changed, 17 deletions(-)
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index fc2173b..da795f7 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1181,23 +1181,6 @@ static void __init smp_sanity_check(void)
set_nr_cpu_ids(8);
}
#endif
-
- if (!physid_isset(read_apic_id(), phys_cpu_present_map)) {
- pr_warn("weird, boot CPU (#%d) not listed by the BIOS\n",
- read_apic_id());
-
- physid_set(read_apic_id(), phys_cpu_present_map);
- }
-
- /*
- * Should not be necessary because the MP table should list the boot
- * CPU too, but we do it for the sake of robustness anyway.
- */
- if (!apic->check_phys_apicid_present(boot_cpu_physical_apicid)) {
- pr_notice("weird, boot CPU (#%d) not listed by the BIOS\n",
- boot_cpu_physical_apicid);
- physid_set(read_apic_id(), phys_cpu_present_map);
- }
preempt_enable();
}
|