arch/x86/mptable: Add smp_write_ioapic_from_hw()
Add variant that reads I/O APIC ID and version from
hardware registers.
Change-Id: I01bec5f40c6ea60446a28767c7a1725dc25d0ae3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55283
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/arch/x86/mpspec.c b/src/arch/x86/mpspec.c
index fa29e80..ba0c4f7 100644
--- a/src/arch/x86/mpspec.c
+++ b/src/arch/x86/mpspec.c
@@ -3,6 +3,7 @@
#include <console/console.h>
#include <device/path.h>
#include <device/pci_ids.h>
+#include <arch/ioapic.h>
#include <arch/smp/mpspec.h>
#include <string.h>
#include <arch/cpu.h>
@@ -221,6 +222,14 @@
smp_add_mpc_entry(mc, sizeof(*mpc));
}
+u8 smp_write_ioapic_from_hw(struct mp_config_table *mc, void *apicaddr)
+{
+ u8 id = get_ioapic_id(apicaddr);
+ u8 ver = get_ioapic_version(apicaddr);
+ smp_write_ioapic(mc, id, ver, apicaddr);
+ return id;
+}
+
/*
* Type 3: I/O Interrupt Table Entries:
* Entry Type, Int Type, Int Polarity, Int Level,