diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2023-08-08 15:04:11 -0700 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2023-08-09 11:58:31 -0700 |
| commit | b5a5ce58d3d22ce560305ef9c70a2ec21fb887ba (patch) | |
| tree | d3c2e0965f9157356f207c9037bc7a2a6a058790 /arch/x86/kernel/apic/local.h | |
| parent | a9d608c22aeecaa6cd34717a8576318ae2295379 (diff) | |
x86/apic: Prepare x2APIC for using apic::max_apic_id
In order to remove the apic::apic_id_valid() callback and switch to
checking apic::max_apic_id, it is required to update apic::max_apic_id when
the APIC initialization code overrides it via x2apic_set_max_apicid().
Make the existing booleans a bitfield and add a flag which lets the update
function and the core code which switches the driver detect whether the
apic instance wants to have that update or not and apply it if required.
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/kernel/apic/local.h')
| -rw-r--r-- | arch/x86/kernel/apic/local.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/local.h b/arch/x86/kernel/apic/local.h index a250675cd97e..e576b3a4d29c 100644 --- a/arch/x86/kernel/apic/local.h +++ b/arch/x86/kernel/apic/local.h @@ -23,6 +23,7 @@ int x2apic_phys_pkg_id(int initial_apicid, int index_msb); void x2apic_send_IPI_all(int vector); void x2apic_send_IPI_allbutself(int vector); void x2apic_send_IPI_self(int vector); +extern u32 x2apic_max_apicid; /* IPI */ |