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Merge tag 'efi-next-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull EFI updates from Borislav Petkov:
 "The last EFI pull request which is forwarded through the tip tree, for
  v5.16. From now on, Ard will be sending stuff directly.

  Disable EFI runtime services by default on PREEMPT_RT, while adding
  the ability to re-enable them on demand by passing efi=runtime on the
  command line"

* tag 'efi-next-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: Allow efi=runtime
  efi: Disable runtime services on RT
This commit is contained in:
Linus Torvalds
2021-11-01 15:05:48 -07:00
parent fe354159ca 720dff78de
commit 93351d2cc9
1 changed files with 4 additions and 1 deletions
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drivers/firmware/efi/efi.c
+4 -1
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@@ -66,7 +66,7 @@ struct mm_struct efi_mm = {
struct workqueue_struct *efi_rts_wq;
static bool disable_runtime;
static bool disable_runtime = IS_ENABLED(CONFIG_PREEMPT_RT);
static int __init setup_noefi(char *arg)
{
disable_runtime = true;
@@ -97,6 +97,9 @@ static int __init parse_efi_cmdline(char *str)
if (parse_option_str(str, "noruntime"))
disable_runtime = true;
if (parse_option_str(str, "runtime"))
disable_runtime = false;
if (parse_option_str(str, "nosoftreserve"))
set_bit(EFI_MEM_NO_SOFT_RESERVE, &efi.flags);