* Re: [edk2-devel] [edk2-platforms V2] MinPlatformPkg: Corret AcpiProcessorUid in MADT
2024-04-01 5:59 [edk2-devel] [edk2-platforms V2] MinPlatformPkg: Corret AcpiProcessorUid in MADT duntan
@ 2024-04-01 7:45 ` Ni, Ray
2024-04-02 6:49 ` Chiu, Chasel
1 sibling, 0 replies; 3+ messages in thread
From: Ni, Ray @ 2024-04-01 7:45 UTC (permalink / raw)
To: Tan, Dun, devel@edk2.groups.io
Cc: Lou, Yun, Chiu, Chasel, Desimone, Nathaniel L, Liming Gao,
Dong, Eric
[-- Attachment #1: Type: text/plain, Size: 3059 bytes --]
Reviewed-by: Ray Ni <ray.ni@intel.com>
Thanks,
Ray
________________________________
From: Tan, Dun <dun.tan@intel.com>
Sent: Monday, April 1, 2024 13:59
To: devel@edk2.groups.io <devel@edk2.groups.io>
Cc: Ni, Ray <ray.ni@intel.com>; Lou, Yun <yun.lou@intel.com>; Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L <nathaniel.l.desimone@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>; Dong, Eric <eric.dong@intel.com>
Subject: [edk2-platforms V2] MinPlatformPkg: Corret AcpiProcessorUid in MADT
Change AcpiProcessorUid in CpuApicIdOrderTable to
the index in MpService regardless of disabled core.
Let's take a simple example:
There are 2 enabled cores and 1 disabled core.
APICID Index in MpService
0x0000_0000 0
0x0000_0010(disbaled) 1
0x0000_0040 2
With current implementation, the results of the x2apic
structure entries in MADT are:
MADT Entry APICID AcpiProcessorUid
0 0x0000_0000 0
1 0x0000_0040 1
The AcpiProcessorUid will be associated with the
processor device defined in DSDT/SSDT. To make sure
the x2apic structure entries in MADT can be mapped to
the right processor devices in DSDT, the AcpiProcessorUid
of the second x2apic structure entry in MADT should
be kept as 2, which is the core index in MpService.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jason Lou <yun.lou@intel.com>
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Eric Dong <eric.dong@intel.com>
---
Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c b/Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c
index 2a833ec99c..f6ea7454d3 100644
--- a/Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c
+++ b/Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c
@@ -190,7 +190,7 @@ CreateCpuLocalApicInTable (
//
for (Socket = 0; Socket < FixedPcdGet32 (PcdMaxCpuSocketCount); Socket++) {
for (CurrProcessor = 0, Index = 0; CurrProcessor < mNumberOfCpus; CurrProcessor++) {
- if (CpuApicIdOrderTable[CurrProcessor].Flags && (CpuApicIdOrderTable[CurrProcessor].SocketNum == Socket)) {
+ if (CpuApicIdOrderTable[CurrProcessor].SocketNum == Socket) {
CpuApicIdOrderTable[CurrProcessor].AcpiProcessorUid = (CpuApicIdOrderTable[CurrProcessor].SocketNum << mNumOfBitShift) + Index;
Index++;
}
--
2.31.1.windows.1
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^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [edk2-devel] [edk2-platforms V2] MinPlatformPkg: Corret AcpiProcessorUid in MADT
2024-04-01 5:59 [edk2-devel] [edk2-platforms V2] MinPlatformPkg: Corret AcpiProcessorUid in MADT duntan
2024-04-01 7:45 ` Ni, Ray
@ 2024-04-02 6:49 ` Chiu, Chasel
1 sibling, 0 replies; 3+ messages in thread
From: Chiu, Chasel @ 2024-04-02 6:49 UTC (permalink / raw)
To: Tan, Dun, devel@edk2.groups.io
Cc: Ni, Ray, Lou, Yun, Desimone, Nathaniel L, Liming Gao, Dong, Eric
Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>
Thanks,
Chasel
> -----Original Message-----
> From: Tan, Dun <dun.tan@intel.com>
> Sent: Sunday, March 31, 2024 11:00 PM
> To: devel@edk2.groups.io
> Cc: Ni, Ray <ray.ni@intel.com>; Lou, Yun <yun.lou@intel.com>; Chiu, Chasel
> <chasel.chiu@intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>;
> Dong, Eric <eric.dong@intel.com>
> Subject: [edk2-platforms V2] MinPlatformPkg: Corret AcpiProcessorUid in MADT
>
> Change AcpiProcessorUid in CpuApicIdOrderTable to the index in MpService
> regardless of disabled core.
>
> Let's take a simple example:
> There are 2 enabled cores and 1 disabled core.
> APICID Index in MpService
> 0x0000_0000 0
> 0x0000_0010(disbaled) 1
> 0x0000_0040 2
>
> With current implementation, the results of the x2apic structure entries in MADT
> are:
> MADT Entry APICID AcpiProcessorUid
> 0 0x0000_0000 0
> 1 0x0000_0040 1
>
> The AcpiProcessorUid will be associated with the processor device defined in
> DSDT/SSDT. To make sure the x2apic structure entries in MADT can be mapped to
> the right processor devices in DSDT, the AcpiProcessorUid of the second x2apic
> structure entry in MADT should be kept as 2, which is the core index in
> MpService.
>
> Signed-off-by: Dun Tan <dun.tan@intel.com>
> Cc: Ray Ni <ray.ni@intel.com>
> Cc: Jason Lou <yun.lou@intel.com>
> Cc: Chasel Chiu <chasel.chiu@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Eric Dong <eric.dong@intel.com>
> ---
> Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c
> b/Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c
> index 2a833ec99c..f6ea7454d3 100644
> --- a/Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c
> +++ b/Platform/Intel/MinPlatformPkg/Acpi/AcpiTables/AcpiPlatform.c
> @@ -190,7 +190,7 @@ CreateCpuLocalApicInTable (
> //
> for (Socket = 0; Socket < FixedPcdGet32 (PcdMaxCpuSocketCount); Socket++) {
> for (CurrProcessor = 0, Index = 0; CurrProcessor < mNumberOfCpus;
> CurrProcessor++) {
> - if (CpuApicIdOrderTable[CurrProcessor].Flags &&
> (CpuApicIdOrderTable[CurrProcessor].SocketNum == Socket)) {
> + if (CpuApicIdOrderTable[CurrProcessor].SocketNum == Socket) {
> CpuApicIdOrderTable[CurrProcessor].AcpiProcessorUid =
> (CpuApicIdOrderTable[CurrProcessor].SocketNum << mNumOfBitShift) + Index;
> Index++;
> }
> --
> 2.31.1.windows.1
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