Merge branch 'next' into for-linus

Prepare first round of input updates for 3.20.

1 files changed, 39 insertions, 13 deletions

diff --git a/arch/x86/kernel/cpu/microcode/intel_early.c b/arch/x86/kernel/cpu/microcode/intel_early.c
index 18f739129e7..ec9df6f9cd4 100644
--- a/arch/x86/kernel/cpu/microcode/intel_early.c
+++ b/arch/x86/kernel/cpu/microcode/intel_early.c
@@ -28,8 +28,8 @@
 #include <asm/tlbflush.h>
 #include <asm/setup.h>
 
-unsigned long mc_saved_in_initrd[MAX_UCODE_COUNT];
-struct mc_saved_data {
+static unsigned long mc_saved_in_initrd[MAX_UCODE_COUNT];
+static struct mc_saved_data {
 	unsigned int mc_saved_count;
 	struct microcode_intel **mc_saved;
 } mc_saved_data;
@@ -415,7 +415,7 @@ static void __ref show_saved_mc(void)
 	struct ucode_cpu_info uci;
 
 	if (mc_saved_data.mc_saved_count == 0) {
-		pr_debug("no micorcode data saved.\n");
+		pr_debug("no microcode data saved.\n");
 		return;
 	}
 	pr_debug("Total microcode saved: %d\n", mc_saved_data.mc_saved_count);
@@ -506,7 +506,7 @@ int save_mc_for_early(u8 *mc)
 
 	if (mc_saved && mc_saved_count)
 		memcpy(mc_saved_tmp, mc_saved,
-		       mc_saved_count * sizeof(struct mirocode_intel *));
+		       mc_saved_count * sizeof(struct microcode_intel *));
 	/*
 	 * Save the microcode patch mc in mc_save_tmp structure if it's a newer
 	 * version.
@@ -526,7 +526,7 @@ int save_mc_for_early(u8 *mc)
 	show_saved_mc();
 
 	/*
-	 * Free old saved microcod data.
+	 * Free old saved microcode data.
 	 */
 	if (mc_saved) {
 		for (i = 0; i < mc_saved_count_init; i++)
@@ -650,8 +650,7 @@ static inline void print_ucode(struct ucode_cpu_info *uci)
 }
 #endif
 
-static int apply_microcode_early(struct mc_saved_data *mc_saved_data,
-				 struct ucode_cpu_info *uci)
+static int apply_microcode_early(struct ucode_cpu_info *uci, bool early)
 {
 	struct microcode_intel *mc_intel;
 	unsigned int val[2];
@@ -680,7 +679,10 @@ static int apply_microcode_early(struct mc_saved_data *mc_saved_data,
 #endif
 	uci->cpu_sig.rev = val[1];
 
-	print_ucode(uci);
+	if (early)
+		print_ucode(uci);
+	else
+		print_ucode_info(uci, mc_intel->hdr.date);
 
 	return 0;
 }
@@ -715,12 +717,17 @@ _load_ucode_intel_bsp(struct mc_saved_data *mc_saved_data,
 		      unsigned long initrd_end_early,
 		      struct ucode_cpu_info *uci)
 {
+	enum ucode_state ret;
+
 	collect_cpu_info_early(uci);
 	scan_microcode(initrd_start_early, initrd_end_early, mc_saved_data,
 		       mc_saved_in_initrd, uci);
-	load_microcode(mc_saved_data, mc_saved_in_initrd,
-		       initrd_start_early, uci);
-	apply_microcode_early(mc_saved_data, uci);
+
+	ret = load_microcode(mc_saved_data, mc_saved_in_initrd,
+			     initrd_start_early, uci);
+
+	if (ret == UCODE_OK)
+		apply_microcode_early(uci, true);
 }
 
 void __init
@@ -749,7 +756,8 @@ load_ucode_intel_bsp(void)
 	initrd_end_early = initrd_start_early + ramdisk_size;
 
 	_load_ucode_intel_bsp(&mc_saved_data, mc_saved_in_initrd,
-			      initrd_start_early, initrd_end_early, &uci);
+			      initrd_start_early, initrd_end_early,
+			      &uci);
 #endif
 }
 
@@ -783,5 +791,23 @@ void load_ucode_intel_ap(void)
 	collect_cpu_info_early(&uci);
 	load_microcode(mc_saved_data_p, mc_saved_in_initrd_p,
 		       initrd_start_addr, &uci);
-	apply_microcode_early(mc_saved_data_p, &uci);
+	apply_microcode_early(&uci, true);
+}
+
+void reload_ucode_intel(void)
+{
+	struct ucode_cpu_info uci;
+	enum ucode_state ret;
+
+	if (!mc_saved_data.mc_saved_count)
+		return;
+
+	collect_cpu_info_early(&uci);
+
+	ret = generic_load_microcode_early(mc_saved_data.mc_saved,
+					   mc_saved_data.mc_saved_count, &uci);
+	if (ret != UCODE_OK)
+		return;
+
+	apply_microcode_early(&uci, false);
 }