Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index a423bdb..c818139 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -9,6 +9,7 @@
  * paravirt and debugging variants are added.)
  */
 #undef CONFIG_PARAVIRT
+#undef CONFIG_PARAVIRT_XXL
 #undef CONFIG_PARAVIRT_SPINLOCKS
 #undef CONFIG_KASAN
 
@@ -22,7 +23,9 @@
 #include <asm/page.h>
 #include <asm/boot.h>
 #include <asm/bootparam.h>
-#include <asm/bootparam_utils.h>
+
+#define BOOT_CTYPE_H
+#include <linux/acpi.h>
 
 #define BOOT_BOOT_H
 #include "../ctype.h"
@@ -62,12 +65,14 @@
 
 #endif
 
-#if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE
 /* cmdline.c */
 int cmdline_find_option(const char *option, char *buffer, int bufsize);
 int cmdline_find_option_bool(const char *option);
-#endif
 
+struct mem_vector {
+	unsigned long long start;
+	unsigned long long size;
+};
 
 #if CONFIG_RANDOMIZE_BASE
 /* kaslr.c */
@@ -114,4 +119,18 @@
 
 void set_sev_encryption_mask(void);
 
+/* acpi.c */
+#ifdef CONFIG_ACPI
+acpi_physical_address get_rsdp_addr(void);
+#else
+static inline acpi_physical_address get_rsdp_addr(void) { return 0; }
 #endif
+
+#if defined(CONFIG_RANDOMIZE_BASE) && defined(CONFIG_MEMORY_HOTREMOVE) && defined(CONFIG_ACPI)
+extern struct mem_vector immovable_mem[MAX_NUMNODES*2];
+int count_immovable_mem_regions(void);
+#else
+static inline int count_immovable_mem_regions(void) { return 0; }
+#endif
+
+#endif /* BOOT_COMPRESSED_MISC_H */