On 2/26/24 16:19, Laszlo Ersek wrote:
> On 2/22/24 17:01, Gerd Hoffmann wrote:
>> Needed to boot guests with thousands of vcpus.
>>
>> v3:
>> - refine comments and commit messages.
>> - fix MaxCpusPerHob calculation.
>> - pick up review tags.
>> - add patch to speed up GetBspNumber a bit.
>> v2:
>> - rework HOB loops for better performance: O(n) instead of O(n^2).
>>
>> Gerd Hoffmann (6):
>> UefiCpuPkg/MpInitLib: Add support for multiple HOBs to GetMpHandOffHob
>> UefiCpuPkg/MpInitLib: Add support for multiple HOBs to GetBspNumber()
>> UefiCpuPkg/MpInitLib: Add support for multiple HOBs to
>> SwitchApContext()
>> UefiCpuPkg/MpInitLib: Add support for multiple HOBs to
>> MpInitLibInitialize
>> UefiCpuPkg/MpInitLib: Add support for multiple HOBs to SaveCpuMpData()
>> UefiCpuPkg/MpInitLib: return early in GetBspNumber()
>>
>> UefiCpuPkg/Library/MpInitLib/MpLib.h | 14 ++-
>> UefiCpuPkg/Library/MpInitLib/MpLib.c | 157 +++++++++++++++---------
>> UefiCpuPkg/Library/MpInitLib/PeiMpLib.c | 44 ++++---
>> 3 files changed, 142 insertions(+), 73 deletions(-)
>>
>
> BTW, differences in PR#5410 relative to v3 as posted:
>
> 1: 678ed78d24a3 ! 1: ecd6c4bb3396 UefiCpuPkg/MpInitLib: Add support for
> multiple HOBs to GetMpHandOffHob
> @@ Commit message
>
> Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
> Message-Id: <20240222160106.686484-2-kra...@redhat.com>
> + Reviewed-by: Ray Ni <ray...@intel.com>
> + Reviewed-by: Laszlo Ersek <ler...@redhat.com>
>
> ## UefiCpuPkg/Library/MpInitLib/MpLib.h ##
> @@ UefiCpuPkg/Library/MpInitLib/MpLib.h: SwitchApContext (
> 2: 23b3e66f9935 = 2: 189467980103 UefiCpuPkg/MpInitLib: Add support for
> multiple HOBs to GetBspNumber()
> 3: e712d36775d0 = 3: 8ab0f63c0f04 UefiCpuPkg/MpInitLib: Add support for
> multiple HOBs to SwitchApContext()
> 4: 9a81417f4b76 ! 4: 995a8ace7801 UefiCpuPkg/MpInitLib: Add support for
> multiple HOBs to MpInitLibInitialize
> @@ Commit message
> Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
> Reviewed-by: Ray Ni <ray...@intel.com>
> Message-Id: <20240222160106.686484-5-kra...@redhat.com>
> + Reviewed-by: Laszlo Ersek <ler...@redhat.com>
>
> ## UefiCpuPkg/Library/MpInitLib/MpLib.c ##
> @@ UefiCpuPkg/Library/MpInitLib/MpLib.c: MpInitLibInitialize (
> 5: 3a089b25725e ! 5: f23c0d125e48 UefiCpuPkg/MpInitLib: Add support for
> multiple HOBs to SaveCpuMpData()
> @@ Commit message
>
> Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
> Message-Id: <20240222160106.686484-6-kra...@redhat.com>
> + Reviewed-by: Ray Ni <ray...@intel.com>
> + Reviewed-by: Laszlo Ersek <ler...@redhat.com>
> + [ler...@redhat.com: define one local variable per line [Ray]]
>
> ## UefiCpuPkg/Library/MpInitLib/PeiMpLib.c ##
> @@ UefiCpuPkg/Library/MpInitLib/PeiMpLib.c: SaveCpuMpData (
> IN CPU_MP_DATA *CpuMpData
> )
> {
> -+ UINT32 MaxCpusPerHob, CpusInHob;
> ++ UINT32 MaxCpusPerHob;
> ++ UINT32 CpusInHob;
> UINT64 Data64;
> - UINTN Index;
> -+ UINT32 Index, HobBase;
> ++ UINT32 Index;
> ++ UINT32 HobBase;
> CPU_INFO_IN_HOB *CpuInfoInHob;
> MP_HAND_OFF *MpHandOff;
> UINTN MpHandOffSize;
> 6: 09435495e6e1 ! 6: fbd8a114cd6e UefiCpuPkg/MpInitLib: return early in
> GetBspNumber()
> @@ Commit message
> Suggested-by: Laszlo Ersek <ler...@redhat.com>
> Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
> Message-Id: <20240222160106.686484-7-kra...@redhat.com>
> + Reviewed-by: Ray Ni <ray...@intel.com>
> + Reviewed-by: Laszlo Ersek <ler...@redhat.com>
> + [ler...@redhat.com: s/ASSERT (FALSE)/ASSERT_EFI_ERROR
> (EFI_NOT_FOUND)/ [Ray]]
>
> ## UefiCpuPkg/Library/MpInitLib/MpLib.c ##
> @@ UefiCpuPkg/Library/MpInitLib/MpLib.c: GetBspNumber (
> @@ UefiCpuPkg/Library/MpInitLib/MpLib.c: GetBspNumber (
> - ASSERT (BspNumber != MAX_UINT32);
> -
> - return BspNumber;
> -+ ASSERT (FALSE);
> ++ ASSERT_EFI_ERROR (EFI_NOT_FOUND);
> + return 0;
> }
>
Merged as commit range 1f161a7915e1..d25421d0d8cd, via
<https://github.com/tianocore/edk2/pull/5410>.
Laszlo
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