[SeaBIOS] [RFC] acpi: Do not advertise S3

[Luiz Capitulino]

S3 is broken in qemu in the following ways:

 1. S3 is immediately followed by a resume (or it doesn't even
    take place)
 2. The screen goes black after S3
 3. Some people reported a hang (I couldn't reproduce it myself)

Chances are we can get these bugs fixed for 1.1, until there let's
not advertise S3 to prevent things like qemu-ga from breaking qemu.

Signed-off-by: Luiz Capitulino <lcapitulino at redhat.com>
---
 src/acpi-dsdt.dsl |    3 +++
 src/acpi-dsdt.hex |   16 ++--------------
 2 files changed, 5 insertions(+), 14 deletions(-)

diff --git a/src/acpi-dsdt.dsl b/src/acpi-dsdt.dsl
index 7082b65..2bd8d95 100644
--- a/src/acpi-dsdt.dsl
+++ b/src/acpi-dsdt.dsl
@@ -599,6 +599,8 @@ DefinitionBlock (
      * S3 (suspend-to-ram), S4 (suspend-to-disk) and S5 (power-off) type codes:
      * must match piix4 emulation.
      */
+#if 0
+    S3 is br0ken in qemu, do not advertise it
     Name (\_S3, Package (0x04)
     {
         0x01,  /* PM1a_CNT.SLP_TYP */
@@ -606,6 +608,7 @@ DefinitionBlock (
         Zero,  /* reserved */
         Zero   /* reserved */
     })
+#endif
     Name (\_S4, Package (0x04)
     {
         Zero,  /* PM1a_CNT.SLP_TYP */
diff --git a/src/acpi-dsdt.hex b/src/acpi-dsdt.hex
index 5dc7bb4..9dcef05 100644
--- a/src/acpi-dsdt.hex
+++ b/src/acpi-dsdt.hex
@@ -3,12 +3,12 @@ static unsigned char AmlCode[] = {
 0x53,
 0x44,
 0x54,
-0xd3,
+0xc7,
 0x10,
 0x0,
 0x0,
 0x1,
-0x2d,
+0xa3,
 0x42,
 0x58,
 0x50,
@@ -3850,18 +3850,6 @@ static unsigned char AmlCode[] = {
 0x8,
 0x5f,
 0x53,
-0x33,
-0x5f,
-0x12,
-0x6,
-0x4,
-0x1,
-0x1,
-0x0,
-0x0,
-0x8,
-0x5f,
-0x53,
 0x34,
 0x5f,
 0x12,
-- 
1.7.9.rc0.dirty