#include <common.h>
#include <command.h>
+#include <dm.h>
#include <errno.h>
#include <malloc.h>
#include <asm/control_regs.h>
#include <asm/cpu.h>
+#include <asm/lapic.h>
+#include <asm/mp.h>
#include <asm/post.h>
#include <asm/processor.h>
#include <asm/processor-flags.h>
load_fs(X86_GDT_ENTRY_32BIT_FS);
}
+#ifdef CONFIG_HAVE_FSP
+/*
+ * Setup FSP execution environment GDT
+ *
+ * Per Intel FSP external architecture specification, before calling any FSP
+ * APIs, we need make sure the system is in flat 32-bit mode and both the code
+ * and data selectors should have full 4GB access range. Here we reuse the one
+ * we used in arch/x86/cpu/start16.S, and reload the segement registers.
+ */
+void setup_fsp_gdt(void)
+{
+ load_gdt((const u64 *)(gdt_rom + CONFIG_RESET_SEG_START), 4);
+ load_ds(X86_GDT_ENTRY_32BIT_DS);
+ load_ss(X86_GDT_ENTRY_32BIT_DS);
+ load_es(X86_GDT_ENTRY_32BIT_DS);
+ load_fs(X86_GDT_ENTRY_32BIT_DS);
+ load_gs(X86_GDT_ENTRY_32BIT_DS);
+}
+#endif
+
int __weak x86_cleanup_before_linux(void)
{
#ifdef CONFIG_BOOTSTAGE_STASH
return 0;
}
#endif
+
+#ifdef CONFIG_SMP
+static int enable_smis(struct udevice *cpu, void *unused)
+{
+ return 0;
+}
+
+static struct mp_flight_record mp_steps[] = {
+ MP_FR_BLOCK_APS(mp_init_cpu, NULL, mp_init_cpu, NULL),
+ /* Wait for APs to finish initialization before proceeding */
+ MP_FR_BLOCK_APS(NULL, NULL, enable_smis, NULL),
+};
+
+static int x86_mp_init(void)
+{
+ struct mp_params mp_params;
+
+ mp_params.parallel_microcode_load = 0,
+ mp_params.flight_plan = &mp_steps[0];
+ mp_params.num_records = ARRAY_SIZE(mp_steps);
+ mp_params.microcode_pointer = 0;
+
+ if (mp_init(&mp_params)) {
+ printf("Warning: MP init failure\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+#endif
+
+__weak int x86_init_cpus(void)
+{
+#ifdef CONFIG_SMP
+ debug("Init additional CPUs\n");
+ x86_mp_init();
+#endif
+
+ return 0;
+}
+
+int cpu_init_r(void)
+{
+ return x86_init_cpus();
+}