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Diffstat (limited to 'purgatory/arch/x86_64/purgatory-x86_64.c')
-rw-r--r--purgatory/arch/x86_64/purgatory-x86_64.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/purgatory/arch/x86_64/purgatory-x86_64.c b/purgatory/arch/x86_64/purgatory-x86_64.c
new file mode 100644
index 0000000..c25a9c2
--- /dev/null
+++ b/purgatory/arch/x86_64/purgatory-x86_64.c
@@ -0,0 +1,30 @@
+#include <stdint.h>
+#include <stddef.h>
+#include <purgatory.h>
+#include "purgatory-x86_64.h"
+
+uint8_t reset_vga = 0;
+uint8_t legacy_pic = 0;
+uint8_t panic_kernel = 0;
+unsigned long jump_back_entry = 0;
+char *cmdline_end = NULL;
+
+void setup_arch(void)
+{
+ if (reset_vga) x86_reset_vga();
+ if (legacy_pic) x86_setup_legacy_pic();
+}
+
+void x86_setup_jump_back_entry(void)
+{
+ if (cmdline_end)
+ sprintf(cmdline_end, " kexec_jump_back_entry=0x%lx",
+ jump_back_entry);
+}
+
+/* This function can be used to execute after the SHA256 verification. */
+void post_verification_setup_arch(void)
+{
+ if (panic_kernel) crashdump_backup_memory();
+ if (jump_back_entry) x86_setup_jump_back_entry();
+}