1 files changed, 77 insertions, 0 deletions
diff --git a/grub-core/kern/arm/efi/init.c b/grub-core/kern/arm/efi/init.c
new file mode 100644
index 0000000..40c3b46
--- /dev/null
+++ b/grub-core/kern/arm/efi/init.c
@@ -0,0 +1,77 @@
+/* init.c - initialize an arm-based EFI system */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/env.h>
+#include <grub/kernel.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/efi/efi.h>
+#include <grub/loader.h>
+
+static grub_uint64_t tmr;
+static grub_efi_event_t tmr_evt;
+
+static grub_uint64_t
+grub_efi_get_time_ms (void)
+{
+  return tmr;
+}
+
+static void 
+increment_timer (grub_efi_event_t event __attribute__ ((unused)),
+		 void *context __attribute__ ((unused)))
+{
+  tmr += 10;
+}
+
+void
+grub_machine_init (void)
+{
+  grub_efi_boot_services_t *b;
+
+  grub_efi_init ();
+
+  b = grub_efi_system_table->boot_services;
+
+  efi_call_5 (b->create_event, GRUB_EFI_EVT_TIMER | GRUB_EFI_EVT_NOTIFY_SIGNAL,
+	      GRUB_EFI_TPL_CALLBACK, increment_timer, NULL, &tmr_evt);
+  efi_call_3 (b->set_timer, tmr_evt, GRUB_EFI_TIMER_PERIODIC, 100000);
+
+  grub_install_get_time_ms (grub_efi_get_time_ms);
+}
+
+void
+grub_machine_fini (int flags)
+{
+  grub_efi_boot_services_t *b;
+
+  if (!(flags & GRUB_LOADER_FLAG_NORETURN))
+    return;
+
+  b = grub_efi_system_table->boot_services;
+
+  efi_call_3 (b->set_timer, tmr_evt, GRUB_EFI_TIMER_CANCEL, 0);
+  efi_call_1 (b->close_event, tmr_evt);
+
+  grub_efi_fini ();
+
+  if (!(flags & GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY))
+    grub_efi_memory_fini ();
+}