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81 lines
2.2 KiB
81 lines
2.2 KiB
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 |
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From: Peter Jones <pjones@redhat.com> |
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Date: Mon, 7 Dec 2015 14:20:49 -0500 |
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Subject: [PATCH] Make efi machines load an env block from a variable |
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Signed-off-by: Peter Jones <pjones@redhat.com> |
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--- |
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grub-core/Makefile.core.def | 1 + |
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grub-core/kern/efi/init.c | 34 +++++++++++++++++++++++++++++++++- |
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2 files changed, 34 insertions(+), 1 deletion(-) |
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diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def |
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index d73ea6f6c51..4fc74393335 100644 |
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--- a/grub-core/Makefile.core.def |
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+++ b/grub-core/Makefile.core.def |
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@@ -173,6 +173,7 @@ kernel = { |
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efi = kern/efi/init.c; |
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efi = kern/efi/mm.c; |
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efi = term/efi/console.c; |
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+ efi = lib/envblk.c; |
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x86 = kern/i386/tsc.c; |
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diff --git a/grub-core/kern/efi/init.c b/grub-core/kern/efi/init.c |
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index c391df48236..c5d8a76144a 100644 |
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--- a/grub-core/kern/efi/init.c |
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+++ b/grub-core/kern/efi/init.c |
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@@ -25,9 +25,40 @@ |
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#include <grub/env.h> |
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#include <grub/mm.h> |
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#include <grub/kernel.h> |
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+#include <grub/lib/envblk.h> |
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grub_addr_t grub_modbase; |
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+#define GRUB_EFI_GRUB_VARIABLE_GUID \ |
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+ { 0x91376aff, 0xcba6, 0x42be, \ |
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+ { 0x94, 0x9d, 0x06, 0xfd, 0xe8, 0x11, 0x28, 0xe8 } \ |
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+ } |
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+ |
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+/* Helper for grub_efi_env_init */ |
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+static int |
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+set_var (const char *name, const char *value, |
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+ void *whitelist __attribute__((__unused__))) |
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+{ |
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+ grub_env_set (name, value); |
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+ return 0; |
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+} |
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+ |
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+static void |
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+grub_efi_env_init (void) |
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+{ |
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+ grub_efi_guid_t efi_grub_guid = GRUB_EFI_GRUB_VARIABLE_GUID; |
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+ struct grub_envblk envblk_s = { NULL, 0 }; |
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+ grub_envblk_t envblk = &envblk_s; |
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+ |
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+ envblk_s.buf = grub_efi_get_variable ("GRUB_ENV", &efi_grub_guid, |
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+ &envblk_s.size); |
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+ if (!envblk_s.buf || envblk_s.size < 1) |
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+ return; |
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+ |
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+ grub_envblk_iterate (envblk, NULL, set_var); |
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+ grub_free (envblk_s.buf); |
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+} |
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+ |
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void |
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grub_efi_init (void) |
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{ |
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@@ -42,10 +73,11 @@ grub_efi_init (void) |
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efi_call_4 (grub_efi_system_table->boot_services->set_watchdog_timer, |
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0, 0, 0, NULL); |
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+ grub_efi_env_init (); |
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grub_efidisk_init (); |
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} |
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-void (*grub_efi_net_config) (grub_efi_handle_t hnd, |
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+void (*grub_efi_net_config) (grub_efi_handle_t hnd, |
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char **device, |
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char **path); |
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