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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/x86/realmode/rm/header.S
parentInitial commit. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/realmode/rm/header.S')
-rw-r--r--arch/x86/realmode/rm/header.S45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
new file mode 100644
index 000000000..2eb62be6d
--- /dev/null
+++ b/arch/x86/realmode/rm/header.S
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Real-mode blob header; this should match realmode.h and be
+ * readonly; for mutable data instead add pointers into the .data
+ * or .bss sections as appropriate.
+ */
+
+#include <linux/linkage.h>
+#include <asm/page_types.h>
+#include <asm/segment.h>
+
+#include "realmode.h"
+
+ .section ".header", "a"
+
+ .balign 16
+SYM_DATA_START(real_mode_header)
+ .long pa_text_start
+ .long pa_ro_end
+ /* SMP trampoline */
+ .long pa_trampoline_start
+ .long pa_trampoline_header
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+ .long pa_sev_es_trampoline_start
+#endif
+#ifdef CONFIG_X86_64
+ .long pa_trampoline_start64
+ .long pa_trampoline_pgd;
+#endif
+ /* ACPI S3 wakeup */
+#ifdef CONFIG_ACPI_SLEEP
+ .long pa_wakeup_start
+ .long pa_wakeup_header
+#endif
+ /* APM/BIOS reboot */
+ .long pa_machine_real_restart_asm
+#ifdef CONFIG_X86_64
+ .long __KERNEL32_CS
+#endif
+SYM_DATA_END(real_mode_header)
+
+ /* End signature, used to verify integrity */
+ .section ".signature","a"
+ .balign 4
+SYM_DATA(end_signature, .long REALMODE_END_SIGNATURE)