soc/intel/cmn/block/cpu: Set BIOS_DONE on all CPUs

As per Intel Processor EDS, BIOS_DONE bit needs to be set on
all CPUs via MSR.

Also, implement a function to perform any SoC recommended CPU
programming prior to post CPUs init. At present calling
`cpu_soc_bios_done()` for all CPUs from `before_post_cpus_init()`.

Note: It is expected that `before_post_cpus_init()` will be
extended with other CPU programming recommendations in follow up
patches, for example: reload microcode patch etc.

BUG=b:233199592
TEST=Build and boot google/taeko to ChromeOS.

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I8066cd724c9f15d259aeb23f3aa71a2d224d5340
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64834
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>

src/soc/intel/common/block/cpu/mp_init.c

@@ -167,6 +167,17 @@ static void wrapper_x86_setup_mtrrs(void *unused)
 	x86_setup_mtrrs_with_detect();
 }
 
+static void wrapper_set_bios_done(void *unused)
+{
+	cpu_soc_bios_done();
+}
+
+void before_post_cpus_init(void)
+{
+	if (mp_run_on_all_cpus(&wrapper_set_bios_done, NULL) != CB_SUCCESS)
+		printk(BIOS_ERR, "Set BIOS Done failure\n");
+}
+
 /* Ensure to re-program all MTRRs based on DRAM resource settings */
 static void post_cpus_init(void *unused)
 {

src/soc/intel/common/block/include/intelblocks/mp_init.h

@@ -33,6 +33,13 @@ void get_microcode_info(const void **microcode, int *parallel);
  */
 void init_cpus(void);
 
+/*
+ * This function will perform any recommended CPU (BSP and AP) initialization
+ * after coreboot has done the multiprocessor initialization (before FSP-S)
+ * and prior to coreboot perform post_cpus_init (after DRAM resources are set).
+ */
+void before_post_cpus_init(void);
+
 /*
  * SoC Overrides
  *