From 31127938f496f56eb05dc407a31e4c5941fb436a Mon Sep 17 00:00:00 2001
From: Igor Mammedov <imammedo@redhat.com>
Date: Wed, 18 Feb 2015 19:14:34 +0000
Subject: [PATCH] acpi: add aml_operation_region() term
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
hw/acpi/aml-build.c | 14 ++++++++++++++
include/hw/acpi/aml-build.h | 7 +++++++
2 files changed, 21 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index cc883ccb95..d72d5b45c8 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -554,3 +554,17 @@ Aml *aml_package(uint8_t num_elements)
build_append_byte(var->buf, num_elements);
return var;
}
+
+/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefOpRegion */
+Aml *aml_operation_region(const char *name, AmlRegionSpace rs,
+ uint32_t offset, uint32_t len)
+{
+ Aml *var = aml_alloc();
+ build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
+ build_append_byte(var->buf, 0x80); /* OpRegionOp */
+ build_append_namestring(var->buf, "%s", name);
+ build_append_byte(var->buf, rs);
+ build_append_int(var->buf, offset);
+ build_append_int(var->buf, len);
+ return var;
+}
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index b7f491ef02..57926e5b7f 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -28,6 +28,11 @@ typedef enum {
aml_decode16 = 1,
} AmlIODecode;
+typedef enum {
+ aml_system_memory = 0x00,
+ aml_system_io = 0x01,
+} AmlRegionSpace;
+
/**
* init_aml_allocator:
*
@@ -79,6 +84,8 @@ Aml *aml_call3(const char *method, Aml *arg1, Aml *arg2, Aml *arg3);
Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4);
Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base,
uint8_t aln, uint8_t len);
+Aml *aml_operation_region(const char *name, AmlRegionSpace rs,
+ uint32_t offset, uint32_t len);
/* Block AML object primitives */
Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
--
2.30.2