[Qemu-devel] [PATCH 01/19] acpi: aml: add aml_lgreater_equal() and aml_load_table()

[Igor Mammedov <imammedo@redhat.com>]

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 hw/acpi/aml-build.c         | 35 +++++++++++++++++++++++++++++++++++
 include/hw/acpi/aml-build.h |  2 ++
 2 files changed, 37 insertions(+)

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 0d4b324..ba7c92e 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -672,6 +672,17 @@ Aml *aml_equal(Aml *arg1, Aml *arg2)
     return var;
 }
 
+/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLGreaterEqual */
+Aml *aml_lgreater_equal(Aml *arg1, Aml *arg2)
+{
+    /* LGreaterEqualOp := LNotOp LLessOp */
+    Aml *var = aml_opcode(0x92 /* LNotOp */);
+    build_append_byte(var->buf, 0x95 /* LLessOp */);
+    aml_append(var, arg1);
+    aml_append(var, arg2);
+    return var;
+}
+
 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
 Aml *aml_if(Aml *predicate)
 {
@@ -1135,6 +1146,30 @@ Aml *aml_unicode(const char *str)
     return var;
 }
 
+/*
+ * ACPI 2.0a: 16.2.3.4.2.28 LoadTable (Load Definition Block From XSDT)
+ */
+Aml *aml_load_table(const char *signature)
+{
+    Aml *var = aml_alloc();
+    build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
+    build_append_byte(var->buf, 0x1F); /* LoadTableOp */
+    aml_append(var, aml_string("%s", signature)); /* SignatureString */
+    aml_append(var, aml_string(ACPI_BUILD_APPNAME6)); /* OEMIDString */
+    aml_append(var,
+        aml_string("%s%s",
+                   ACPI_BUILD_APPNAME4,
+                   signature)); /* OEMTableIDString */
+    /* load at current context */
+    build_append_byte(var->buf, 0x0D); /* empty RootPathString */
+    build_append_byte(var->buf, 0x0);
+    build_append_byte(var->buf, 0x0D); /* empty ParameterPathString */
+    build_append_byte(var->buf, 0x0);
+    /* don't store anything into ParameterPathString since it's empty */
+    build_append_byte(var->buf, 0); /* ParameterData */
+    return var;
+}
+
 void
 build_header(GArray *linker, GArray *table_data,
              AcpiTableHeader *h, const char *sig, int len, uint8_t rev)
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 1b632dc..148bf3e 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -229,6 +229,7 @@ Aml *aml_local(int num);
 Aml *aml_string(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
 Aml *aml_lnot(Aml *arg);
 Aml *aml_equal(Aml *arg1, Aml *arg2);
+Aml *aml_lgreater_equal(Aml *arg1, Aml *arg2);
 Aml *aml_processor(uint8_t proc_id, uint32_t pblk_addr, uint8_t pblk_len,
                    const char *name_format, ...) GCC_FMT_ATTR(4, 5);
 Aml *aml_eisaid(const char *str);
@@ -274,6 +275,7 @@ Aml *aml_create_dword_field(Aml *srcbuf, Aml *index, const char *name);
 Aml *aml_varpackage(uint32_t num_elements);
 Aml *aml_touuid(const char *uuid);
 Aml *aml_unicode(const char *str);
+Aml *aml_load_table(const char *signature);
 
 void
 build_header(GArray *linker, GArray *table_data,
-- 
1.8.3.1