summaryrefslogtreecommitdiff
path: root/hw
diff options
context:
space:
mode:
Diffstat (limited to 'hw')
-rw-r--r--hw/acpi/aml-build.c5
-rw-r--r--hw/i386/acpi-build.c10
2 files changed, 9 insertions, 6 deletions
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index fd512a5996..5dcaf3239e 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -952,11 +952,14 @@ Aml *aml_reserved_field(unsigned length)
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefField */
-Aml *aml_field(const char *name, AmlAccessType type, AmlUpdateRule rule)
+Aml *aml_field(const char *name, AmlAccessType type, AmlLockRule lock,
+ AmlUpdateRule rule)
{
Aml *var = aml_bundle(0x81 /* FieldOp */, AML_EXT_PACKAGE);
uint8_t flags = rule << 5 | type;
+ flags |= lock << 4; /* LockRule at 4 bit offset */
+
build_append_namestring(var->buf, "%s", name);
build_append_byte(var->buf, flags);
return var;
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 35ea92d022..4e9855ad00 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1130,7 +1130,7 @@ build_ssdt(GArray *table_data, GArray *linker,
aml_append(dev, aml_operation_region("PEOR", AML_SYSTEM_IO,
misc->pvpanic_port, 1));
- field = aml_field("PEOR", AML_BYTE_ACC, AML_PRESERVE);
+ field = aml_field("PEOR", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
aml_append(field, aml_named_field("PEPT", 8));
aml_append(dev, field);
@@ -1170,7 +1170,7 @@ build_ssdt(GArray *table_data, GArray *linker,
/* declare CPU hotplug MMIO region and PRS field to access it */
aml_append(sb_scope, aml_operation_region(
"PRST", AML_SYSTEM_IO, pm->cpu_hp_io_base, pm->cpu_hp_io_len));
- field = aml_field("PRST", AML_BYTE_ACC, AML_PRESERVE);
+ field = aml_field("PRST", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
aml_append(field, aml_named_field("PRS", 256));
aml_append(sb_scope, field);
@@ -1245,7 +1245,7 @@ build_ssdt(GArray *table_data, GArray *linker,
);
field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), AML_DWORD_ACC,
- AML_PRESERVE);
+ AML_NOLOCK, AML_PRESERVE);
aml_append(field, /* read only */
aml_named_field(stringify(MEMORY_SLOT_ADDR_LOW), 32));
aml_append(field, /* read only */
@@ -1259,7 +1259,7 @@ build_ssdt(GArray *table_data, GArray *linker,
aml_append(scope, field);
field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), AML_BYTE_ACC,
- AML_WRITE_AS_ZEROS);
+ AML_NOLOCK, AML_WRITE_AS_ZEROS);
aml_append(field, aml_reserved_field(160 /* bits, Offset(20) */));
aml_append(field, /* 1 if enabled, read only */
aml_named_field(stringify(MEMORY_SLOT_ENABLED), 1));
@@ -1275,7 +1275,7 @@ build_ssdt(GArray *table_data, GArray *linker,
aml_append(scope, field);
field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), AML_DWORD_ACC,
- AML_PRESERVE);
+ AML_NOLOCK, AML_PRESERVE);
aml_append(field, /* DIMM selector, write only */
aml_named_field(stringify(MEMORY_SLOT_SLECTOR), 32));
aml_append(field, /* _OST event code, write only */