* [edk2-plaforms PATCH 1/1] SbsaQemu: Fix CPUID generation in SSDT
@ 2020-08-27 13:17 Graeme Gregory
2020-08-27 13:57 ` Leif Lindholm
0 siblings, 1 reply; 2+ messages in thread
From: Graeme Gregory @ 2020-08-27 13:17 UTC (permalink / raw)
To: devel; +Cc: leif, tanmay.jagdale, Graeme Gregory
The SBSAQEMU_ACPI_ITOA contains a typo that puts invalid characters in
the ASL for any number of CPUs > 10.
Signed-off-by: Graeme Gregory <graeme@nuviainc.com>
---
Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h
index 1a7d9dda2b99..0f79d8a9c3c8 100644
--- a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h
+++ b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h
@@ -51,7 +51,7 @@
#define SBSAQEMU_ACPI_CPU_DEV_NAME { 'C', '0', '0', '0' }
// Macro to convert Integer to Character
-#define SBSAQEMU_ACPI_ITOA(Byte) (0x30 + (Byte > 9 ? (Byte + 1) : Byte))
+#define SBSAQEMU_ACPI_ITOA(Byte) (0x30 + (Byte > 9 ? (Byte + 7) : Byte))
#define SBSAQEMU_ACPI_CPU_HID { \
AML_NAME_OP, AML_NAME_CHAR__, 'H', 'I', 'D', \
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [edk2-plaforms PATCH 1/1] SbsaQemu: Fix CPUID generation in SSDT
2020-08-27 13:17 [edk2-plaforms PATCH 1/1] SbsaQemu: Fix CPUID generation in SSDT Graeme Gregory
@ 2020-08-27 13:57 ` Leif Lindholm
0 siblings, 0 replies; 2+ messages in thread
From: Leif Lindholm @ 2020-08-27 13:57 UTC (permalink / raw)
To: Graeme Gregory; +Cc: devel, tanmay.jagdale
On Thu, Aug 27, 2020 at 14:17:15 +0100, Graeme Gregory wrote:
> The SBSAQEMU_ACPI_ITOA contains a typo that puts invalid characters in
> the ASL for any number of CPUs > 10.
Whoops.
However, looking at where this is actually used, in SbsaQemuAcpiDxe.c,
that looks like an accident waiting to happen.
Could you possibly rewrite it using PrintLib AsciiSPrint, and drop
this macro?
/
Leif
> Signed-off-by: Graeme Gregory <graeme@nuviainc.com>
> ---
> Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h
> index 1a7d9dda2b99..0f79d8a9c3c8 100644
> --- a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h
> +++ b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuAcpi.h
> @@ -51,7 +51,7 @@
> #define SBSAQEMU_ACPI_CPU_DEV_NAME { 'C', '0', '0', '0' }
>
> // Macro to convert Integer to Character
> -#define SBSAQEMU_ACPI_ITOA(Byte) (0x30 + (Byte > 9 ? (Byte + 1) : Byte))
> +#define SBSAQEMU_ACPI_ITOA(Byte) (0x30 + (Byte > 9 ? (Byte + 7) : Byte))
>
> #define SBSAQEMU_ACPI_CPU_HID { \
> AML_NAME_OP, AML_NAME_CHAR__, 'H', 'I', 'D', \
> --
> 2.25.1
>
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