From: Rafael J. Wysocki rafael.j.wysocki@intel.com
commit 6998a8800d73116187aad542391ce3b2dd0f9e30 upstream.
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@redhat.com Tested-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Cc: George Kennedy george.kennedy@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/setup.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
--- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1117,9 +1117,6 @@ 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();
@@ -1199,6 +1196,8 @@ 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();