This is a note to let you know that I've just added the patch titled
ACPI: x86: Call acpi_boot_table_init() after acpi_table_upgrade()
to the 5.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-x86-call-acpi_boot_table_init-after-acpi_table_.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4327b945d2f8a7f687b6e35772478510d9df8bf1
Author: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Date: Tue Apr 13 16:01:00 2021 +0200
ACPI: x86: Call acpi_boot_table_init() after acpi_table_upgrade()
[ Upstream commit 6998a8800d73116187aad542391ce3b2dd0f9e30 ]
Commit 1a1c130ab757 ("ACPI: tables: x86: Reserve memory occupied by
ACPI tables") attempted to address an issue with reserving the memory
occupied by ACPI tables, but it broke the initrd-based table override
mechanism relied on by multiple users.
To restore the initrd-based ACPI table override functionality, move
the acpi_boot_table_init() invocation in setup_arch() on x86 after
the acpi_table_upgrade() one.
Fixes: 1a1c130ab757 ("ACPI: tables: x86: Reserve memory occupied by ACPI tables")
Reported-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Tested-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index df964571a6b4..54a3048ebc5b 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1046,9 +1046,6 @@ void __init setup_arch(char **cmdline_p)
cleanup_highmap();
- /* Look for ACPI tables and reserve memory occupied by them. */
- acpi_boot_table_init();
-
memblock_set_current_limit(ISA_END_ADDRESS);
e820__memblock_setup();
@@ -1133,6 +1130,8 @@ void __init setup_arch(char **cmdline_p)
reserve_initrd();
acpi_table_upgrade();
+ /* Look for ACPI tables and reserve memory occupied by them. */
+ acpi_boot_table_init();
vsmp_init();
