mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

x86/mpparse: Register APIC address only once 

The APIC address is registered twice. First during the early detection and
afterwards when actually scanning the table for APIC IDs. The APIC and
topology core warn about the second attempt.

Restrict it to the early detection call.

Fixes: 81287ad65d ("x86/apic: Sanitize APIC address setup")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240322185305.297774848@linutronix.de
This commit is contained in:
Thomas Gleixner 2024-03-22 19:56:39 +01:00 committed by Borislav Petkov (AMD)
parent 5e25eb25da
commit f2208aa12c
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/x86/kernel/mpparse.c
View File

@ -197,12 +197,12 @@ static int __init smp_read_mpc(struct mpc_table *mpc, unsigned early)
if (!smp_check_mpc(mpc, oem, str))
return 0;
/* Initialize the lapic mapping */
if (!acpi_lapic)
register_lapic_address(mpc->lapic);
if (early)
if (early) {
/* Initialize the lapic mapping */
if (!acpi_lapic)
register_lapic_address(mpc->lapic);
return 1;
}
/* Now process the configuration blocks. */
while (count < mpc->length) {