lbmk/resources/coreboot/haswell/patches/0009-nb-intel-haswell-nri-Only-do-CPU-replacement-check-o.patch

From 731216aef3129ae27ad5adc7266cb8a58090c9fc Mon Sep 17 00:00:00 2001
From: Angel Pons <th3fanbus@gmail.com>
Date: Sun, 26 Jun 2022 10:32:12 +0200
Subject: [PATCH 09/26] nb/intel/haswell/nri: Only do CPU replacement check on
 cold boots

CPU replacement check should only be done on cold boots.

Change-Id: I98efa105f4df755b23febe12dd7b356787847852
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
---
 .../intel/haswell/native_raminit/raminit_native.c   | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_native.c b/src/northbridge/intel/haswell/native_raminit/raminit_native.c
index 0869db3902..bd9bc8e692 100644
--- a/src/northbridge/intel/haswell/native_raminit/raminit_native.c
+++ b/src/northbridge/intel/haswell/native_raminit/raminit_native.c
@@ -40,15 +40,14 @@ static enum raminit_boot_mode get_boot_mode(void)
 	return (pmcon_2 & bitmask) == bitmask ? BOOTMODE_WARM : BOOTMODE_COLD;
 }
 
-static bool early_init_native(int s3resume)
+static bool early_init_native(enum raminit_boot_mode bootmode)
 {
 	printk(BIOS_DEBUG, "Starting native platform initialisation\n");
 
 	intel_early_me_init();
-	/** TODO: CPU replacement check must be skipped in warm boots and S3 resumes **/
-	const bool cpu_replaced = !s3resume && intel_early_me_cpu_replacement_check();
+	bool cpu_replaced = bootmode == BOOTMODE_COLD && intel_early_me_cpu_replacement_check();
 
-	early_pch_init_native(s3resume);
+	early_pch_init_native(bootmode == BOOTMODE_S3);
 
 	if (!CONFIG(INTEL_LYNXPOINT_LP))
 		dmi_early_init();
@@ -176,13 +175,13 @@ void perform_raminit(const int s3resume)
 	 * See, this function's name is a lie. There are more things to
 	 * do that memory initialisation, but they are relatively easy.
 	 */
-	const bool cpu_replaced = early_init_native(s3resume);
+	const enum raminit_boot_mode orig_bootmode = get_boot_mode();
+
+	const bool cpu_replaced = early_init_native(s3resume ? BOOTMODE_S3 : orig_bootmode);
 
 	wait_txt_clear();
 	wrmsr(0x2e6, (msr_t) {.lo = 0, .hi = 0});
 
-	const enum raminit_boot_mode orig_bootmode = get_boot_mode();
-
 	struct mrc_data md = prepare_mrc_cache();
 
 	const enum raminit_boot_mode bootmode =
-- 
2.39.2