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Kirill Smelkov
linux
Commits
49b24106
Commit
49b24106
authored
Nov 24, 2015
by
Ingo Molnar
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Merge branch 'x86/urgent' into x86/asm, to pick up dependent fixes
Signed-off-by:
Ingo Molnar
<
mingo@kernel.org
>
parents
75ef8219
f1075053
Changes
3
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3 changed files
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19 additions
and
3 deletions
+19
-3
arch/x86/entry/entry_64.S
arch/x86/entry/entry_64.S
+18
-1
arch/x86/kernel/cpu/microcode/core.c
arch/x86/kernel/cpu/microcode/core.c
+1
-0
arch/x86/kernel/setup.c
arch/x86/kernel/setup.c
+0
-2
No files found.
arch/x86/entry/entry_64.S
View file @
49b24106
...
@@ -509,6 +509,17 @@ END(irq_entries_start)
...
@@ -509,6 +509,17 @@ END(irq_entries_start)
*
tracking
that
we
're in kernel mode.
*
tracking
that
we
're in kernel mode.
*/
*/
SWAPGS
SWAPGS
/
*
*
We
need
to
tell
lockdep
that
IRQs
are
off
.
We
can
't do this until
*
we
fix
gsbase
,
and
we
should
do
it
before
enter_from_user_mode
*
(
which
can
take
locks
)
.
Since
TRACE_IRQS_OFF
idempotent
,
*
the
simplest
way
to
handle
it
is
to
just
call
it
twice
if
*
we
enter
from
user
mode
.
There
's no reason to optimize this since
*
TRACE_IRQS_OFF
is
a
no
-
op
if
lockdep
is
off
.
*/
TRACE_IRQS_OFF
#ifdef CONFIG_CONTEXT_TRACKING
#ifdef CONFIG_CONTEXT_TRACKING
call
enter_from_user_mode
call
enter_from_user_mode
#endif
#endif
...
@@ -1049,12 +1060,18 @@ ENTRY(error_entry)
...
@@ -1049,12 +1060,18 @@ ENTRY(error_entry)
SWAPGS
SWAPGS
.
Lerror_entry_from_usermode_after_swapgs
:
.
Lerror_entry_from_usermode_after_swapgs
:
/
*
*
We
need
to
tell
lockdep
that
IRQs
are
off
.
We
can
't do this until
*
we
fix
gsbase
,
and
we
should
do
it
before
enter_from_user_mode
*
(
which
can
take
locks
)
.
*/
TRACE_IRQS_OFF
#ifdef CONFIG_CONTEXT_TRACKING
#ifdef CONFIG_CONTEXT_TRACKING
call
enter_from_user_mode
call
enter_from_user_mode
#endif
#endif
ret
.
Lerror_entry_done
:
.
Lerror_entry_done
:
TRACE_IRQS_OFF
TRACE_IRQS_OFF
ret
ret
...
...
arch/x86/kernel/cpu/microcode/core.c
View file @
49b24106
...
@@ -698,3 +698,4 @@ int __init microcode_init(void)
...
@@ -698,3 +698,4 @@ int __init microcode_init(void)
return
error
;
return
error
;
}
}
late_initcall
(
microcode_init
);
arch/x86/kernel/setup.c
View file @
49b24106
...
@@ -1250,8 +1250,6 @@ void __init setup_arch(char **cmdline_p)
...
@@ -1250,8 +1250,6 @@ void __init setup_arch(char **cmdline_p)
if
(
efi_enabled
(
EFI_BOOT
))
if
(
efi_enabled
(
EFI_BOOT
))
efi_apply_memmap_quirks
();
efi_apply_memmap_quirks
();
#endif
#endif
microcode_init
();
}
}
#ifdef CONFIG_X86_32
#ifdef CONFIG_X86_32
...
...
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