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Re: [Xen-devel] [PATCH v2 07/17] libxl/arm: Construct ACPI GTDT table
Hi Shannon,
On 29/06/2016 10:29, Shannon Zhao wrote:
On 2016/6/27 18:17, Julien Grall wrote:
On 27/06/16 02:44, Shannon Zhao wrote:
On 2016/6/24 0:26, Julien Grall wrote:
On 23/06/16 04:16, Shannon Zhao wrote:
From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
Construct GTDT table with the interrupt information of timers.
Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
---
tools/libxl/libxl_arm_acpi.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/tools/libxl/libxl_arm_acpi.c
b/tools/libxl/libxl_arm_acpi.c
index d5ffedf..de863f4 100644
--- a/tools/libxl/libxl_arm_acpi.c
+++ b/tools/libxl/libxl_arm_acpi.c
@@ -39,6 +39,9 @@ typedef uint64_t u64;
#define ACPI_BUILD_APPNAME6 "XenARM"
#define ACPI_BUILD_APPNAME4 "Xen "
+#define ACPI_LEVEL_SENSITIVE (u8) 0x00
+#define ACPI_ACTIVE_LOW (u8) 0x01
+
Why did not you include actypes.h rather than define these two defines?
If we include actypes.h, there will be some compiling errors.
../../xen/include/acpi/actypes.h:55:2: error: #error ACPI_MACHINE_WIDTH
not defined
#error ACPI_MACHINE_WIDTH not defined
^
../../xen/include/acpi/actypes.h:130:9: error: unknown type name
'COMPILER_DEPENDENT_UINT64'
typedef COMPILER_DEPENDENT_UINT64 UINT64;
^
../../xen/include/acpi/actypes.h:131:9: error: unknown type name
'COMPILER_DEPENDENT_INT64'
typedef COMPILER_DEPENDENT_INT64 INT64;
^
../../xen/include/acpi/actypes.h:202:2: error: #error unknown
ACPI_MACHINE_WIDTH
#error unknown ACPI_MACHINE_WIDTH
^
../../xen/include/acpi/actypes.h:207:9: error: unknown type name
'acpi_native_uint'
typedef acpi_native_uint acpi_size;
^
../../xen/include/acpi/actypes.h:617:3: error: unknown type name
'acpi_io_address'
acpi_io_address pblk_address;
Yeah, it maybe can be solved by defining ACPI_MACHINE_WIDTH and
COMPILER_DEPENDENT_INT64 here, but since we only needs
ACPI_LEVEL_SENSITIVE and ACPI_ACTIVE_LOW, I think it's ok to define them
here.
We should avoid to redefine value as much as possible. The 2 missing
values are easy to define (see below) so there is no point to redefine
in a less obvious way: no comment to explain what the values are for,
and only a part of the set defined.
#define ACPI_MACHINE_WIDTH BITS_PER_LONG
#define COMPILER_DEPENDENT_INT64 int64_t
Actually not work. I add below codes but get compiling errors as well.
So it needs the BITS_PER_LONG but it exists asm-arm/config.h
Give a look to bitperlongs.h in /usr/include. Although the name is
__BITS_PER_LONG.
Regards,
--
Julien Grall
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