diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2023-08-08 15:04:10 -0700 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2023-08-09 11:58:31 -0700 |
| commit | d92e5e7cf580ac59678fa40fd99aa8eb00f1ff52 (patch) | |
| tree | 4dac30435d26eb52b1d5c17c02d8a1b3ad32bfae /arch/x86/include/asm/apic.h | |
| parent | 9132d720eb8a40be5eaa539ed940beaf2bd2e421 (diff) | |
x86/apic: Add max_apic_id member
There is really no point to have a callback which compares numbers.
Add a field which allows each APIC to store the maximum APIC ID supported
and fill it in for all APIC incarnations.
The next step will remove the callback.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Sohil Mehta <sohil.mehta@intel.com>
Tested-by: Juergen Gross <jgross@suse.com> # Xen PV (dom0 and unpriv. guest)
Diffstat (limited to 'arch/x86/include/asm/apic.h')
| -rw-r--r-- | arch/x86/include/asm/apic.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 5a01d51a2970..42d3240f4f89 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -277,6 +277,9 @@ struct apic { u64 (*icr_read)(void); void (*icr_write)(u32 low, u32 high); + /* The limit of the APIC ID space. */ + u32 max_apic_id; + /* Probe, setup and smpboot functions */ int (*probe)(void); int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id); |