From 2eb0cc4842234570239c20ad737818612f8cd120 Mon Sep 17 00:00:00 2001
From: Marcel Apfelbaum <marcel@redhat.com>
Date: Wed, 24 Jun 2015 13:52:58 +0200
Subject: [PATCH 187/217] acpi: add a missing backslash to the \_SB scope.

Message-id: <1435154016-26233-6-git-send-email-marcel@redhat.com>
Patchwork-id: 66433
O-Subject: [RHEL-7.2 qemu-kvm-rhev PATCH 05/43] acpi: add a missing backslash to the \_SB scope.
Bugzilla: 1103313
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>

From: Gal Hammer <ghammer@redhat.com>

A predefined scope in the ACPI specs is precede with a backslash.

Signed-off-by: Gal Hammer <ghammer@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
(cherry picked from commit 7824df3889499acc7466317175a3fb24a0824002)
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 hw/i386/acpi-build.c        | 2 +-
 include/hw/acpi/aml-build.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 061a9ba..c9d4545 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -765,7 +765,7 @@ build_ssdt(GArray *table_data, GArray *linker,
         aml_append(ssdt, scope);
     }
 
-    sb_scope = aml_scope("_SB");
+    sb_scope = aml_scope("\\_SB");
     {
         /* create PCI0.PRES device and its _CRS to reserve CPU hotplug MMIO */
         dev = aml_device("PCI0." stringify(CPU_HOTPLUG_RESOURCE_DEVICE));
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 82242ec..9773bfd 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -184,7 +184,7 @@ void free_aml_allocator(void);
  * Joins Aml elements together and helps to construct AML tables
  * Examle of usage:
  *   Aml *table = aml_def_block("SSDT", ...);
- *   Aml *sb = aml_scope("\_SB");
+ *   Aml *sb = aml_scope("\\_SB");
  *   Aml *dev = aml_device("PCI0");
  *
  *   aml_append(dev, aml_name_decl("HID", aml_eisaid("PNP0A03")));
-- 
1.8.3.1