[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v6 13/22] hw/acpi/aml-build: Make aml_buffer() defin
From: |
Shannon Zhao |
Subject: |
[Qemu-devel] [PATCH v6 13/22] hw/acpi/aml-build: Make aml_buffer() definition consistent with the spec |
Date: |
Thu, 7 May 2015 17:29:15 +0800 |
From: Shannon Zhao <address@hidden>
According to ACPI spec, DefBuffer can take two parameters: BufferSize
and ByteList. Make it consistent with the spec. If we want to request
uninitialized buffer, pass ByteList as NULL to aml_buffer() to
reserve spaces.
Signed-off-by: Shannon Zhao <address@hidden>
Signed-off-by: Shannon Zhao <address@hidden>
---
hw/acpi/aml-build.c | 15 ++++++++++++++-
include/hw/acpi/aml-build.h | 2 +-
2 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index b99bb13..a38a536 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -643,9 +643,22 @@ Aml *aml_resource_template(void)
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefBuffer */
-Aml *aml_buffer(void)
+Aml *aml_buffer(int buffer_size, uint8_t *byte_list)
{
+ int i;
Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER);
+
+ for (i = 0; i < buffer_size; i++) {
+ /* (byte_list == NULL) means requesting uninitialized buffer, only
+ * need to reserve spaces.
+ */
+ if (byte_list == NULL) {
+ build_append_byte(var->buf, 0x0);
+ } else {
+ build_append_byte(var->buf, *(byte_list + i));
+ }
+ }
+
return var;
}
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index d1b9fe7..69d7813 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -255,7 +255,7 @@ Aml *aml_device(const char *name_format, ...)
GCC_FMT_ATTR(1, 2);
Aml *aml_method(const char *name, int arg_count);
Aml *aml_if(Aml *predicate);
Aml *aml_package(uint8_t num_elements);
-Aml *aml_buffer(void);
+Aml *aml_buffer(int buffer_size, uint8_t *byte_list);
Aml *aml_resource_template(void);
Aml *aml_field(const char *name, AmlFieldFlags flags);
Aml *aml_varpackage(uint32_t num_elements);
--
2.0.4
- [Qemu-devel] [PATCH v6 15/22] hw/acpi/aml-build: Add aml_or() term, (continued)
- [Qemu-devel] [PATCH v6 15/22] hw/acpi/aml-build: Add aml_or() term, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 14/22] hw/acpi/aml-build: Add ToUUID macro, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 10/22] hw/arm/virt-acpi-build: Generate RSDT table, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 20/22] hw/acpi/aml-build: Add Unicode macro, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 18/22] hw/acpi/aml-build: Add aml_create_dword_field() term, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 19/22] hw/acpi/aml-build: Add aml_dword_io() term, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 11/22] hw/arm/virt-acpi-build: Generate RSDP table, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 13/22] hw/acpi/aml-build: Make aml_buffer() definition consistent with the spec,
Shannon Zhao <=
- [Qemu-devel] [PATCH v6 17/22] hw/acpi/aml-build: Add aml_else() term, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 22/22] hw/arm/virt: Enable dynamic generation of ACPI v5.1 tables, Shannon Zhao, 2015/05/07
- [Qemu-devel] [PATCH v6 21/22] hw/arm/virt-acpi-build: Add PCIe controller in ACPI DSDT table, Shannon Zhao, 2015/05/07
- Re: [Qemu-devel] [PATCH v6 00/22] Generate ACPI v5.1 tables and expose them to guest over fw_cfg on ARM, Peter Maydell, 2015/05/07