diff mbox series

[v25,01/10] acpi: nvdimm: change NVDIMM_UUID_LE to a common macro

Message ID 20200410114639.32844-2-gengdongjiu@huawei.com (mailing list archive)
State New, archived
Headers show
Series Add ARMv8 RAS virtualization support in QEMU | expand

Commit Message

Dongjiu Geng April 10, 2020, 11:46 a.m. UTC
The little end UUID is used in many places, so make
NVDIMM_UUID_LE to a common macro to convert the UUID
to a little end array.

Reviewed-by: Xiang Zheng <zhengxiang9@huawei.com>
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---
 hw/acpi/nvdimm.c    | 10 +++-------
 include/qemu/uuid.h |  9 +++++++++
 2 files changed, 12 insertions(+), 7 deletions(-)

Comments

Peter Maydell April 17, 2020, 1:15 p.m. UTC | #1
On Fri, 10 Apr 2020 at 12:45, Dongjiu Geng <gengdongjiu@huawei.com> wrote:
>
> The little end UUID is used in many places, so make
> NVDIMM_UUID_LE to a common macro to convert the UUID
> to a little end array.
>
> Reviewed-by: Xiang Zheng <zhengxiang9@huawei.com>
> Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
> ---
>  hw/acpi/nvdimm.c    | 10 +++-------
>  include/qemu/uuid.h |  9 +++++++++
>  2 files changed, 12 insertions(+), 7 deletions(-)
>
> diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
> index eb6a37b..a747c63 100644
> --- a/hw/acpi/nvdimm.c
> +++ b/hw/acpi/nvdimm.c
> @@ -27,6 +27,7 @@
>   */
>
>  #include "qemu/osdep.h"
> +#include "qemu/uuid.h"
>  #include "hw/acpi/acpi.h"
>  #include "hw/acpi/aml-build.h"
>  #include "hw/acpi/bios-linker-loader.h"
> @@ -34,18 +35,13 @@
>  #include "hw/mem/nvdimm.h"
>  #include "qemu/nvdimm-utils.h"
>
> -#define NVDIMM_UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)             \
> -   { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
> -     (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff,          \
> -     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }
> -
>  /*
>   * define Byte Addressable Persistent Memory (PM) Region according to
>   * ACPI 6.0: 5.2.25.1 System Physical Address Range Structure.
>   */
>  static const uint8_t nvdimm_nfit_spa_uuid[] =
> -      NVDIMM_UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
> -                     0x18, 0xb7, 0x8c, 0xdb);
> +      UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
> +              0x18, 0xb7, 0x8c, 0xdb);
>
>  /*
>   * NVDIMM Firmware Interface Table
> diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
> index 129c45f..c55541b 100644
> --- a/include/qemu/uuid.h
> +++ b/include/qemu/uuid.h
> @@ -34,6 +34,15 @@ typedef struct {
>      };
>  } QemuUUID;
>
> +/**
> + * convert UUID to little-endian array
> + * The input parameter is the member of  UUID
> + */

This isn't in the right form to be a proper doc-comment comment,
and it's too brief to really help somebody who doesn't already
know what the macro does.

The parameter names to the macro are still terrible, and
"member of UUID" doesn't help -- assuming you mean "members
of the QemuUUID struct, those are named 'time_low' , 'time_mid',
and so on, not this random selection of alphabetic and d0..d7.

> +#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)             \
> +  { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
> +     (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff,          \
> +     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }
> +
>  #define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-" \
>                   "%02hhx%02hhx-%02hhx%02hhx-" \
>                   "%02hhx%02hhx-" \
> --
> 1.8.3.1

thanks
-- PMM
diff mbox series

Patch

diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
index eb6a37b..a747c63 100644
--- a/hw/acpi/nvdimm.c
+++ b/hw/acpi/nvdimm.c
@@ -27,6 +27,7 @@ 
  */
 
 #include "qemu/osdep.h"
+#include "qemu/uuid.h"
 #include "hw/acpi/acpi.h"
 #include "hw/acpi/aml-build.h"
 #include "hw/acpi/bios-linker-loader.h"
@@ -34,18 +35,13 @@ 
 #include "hw/mem/nvdimm.h"
 #include "qemu/nvdimm-utils.h"
 
-#define NVDIMM_UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)             \
-   { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
-     (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff,          \
-     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }
-
 /*
  * define Byte Addressable Persistent Memory (PM) Region according to
  * ACPI 6.0: 5.2.25.1 System Physical Address Range Structure.
  */
 static const uint8_t nvdimm_nfit_spa_uuid[] =
-      NVDIMM_UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
-                     0x18, 0xb7, 0x8c, 0xdb);
+      UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
+              0x18, 0xb7, 0x8c, 0xdb);
 
 /*
  * NVDIMM Firmware Interface Table
diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
index 129c45f..c55541b 100644
--- a/include/qemu/uuid.h
+++ b/include/qemu/uuid.h
@@ -34,6 +34,15 @@  typedef struct {
     };
 } QemuUUID;
 
+/**
+ * convert UUID to little-endian array
+ * The input parameter is the member of  UUID
+ */
+#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)             \
+  { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+     (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff,          \
+     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }
+
 #define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-" \
                  "%02hhx%02hhx-%02hhx%02hhx-" \
                  "%02hhx%02hhx-" \