From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by spool.mail.gandi.net (Postfix) with ESMTPS id 4A78D74005D for ; Thu, 22 Feb 2024 16:01:18 +0000 (UTC) DKIM-Signature: a=rsa-sha256; bh=3z4Su3gruUgMCWF+VolLTa/D6uBhY/tTdmdFmlSN5V8=; c=relaxed/simple; d=groups.io; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:MIME-Version:Precedence:List-Subscribe:List-Help:Sender:List-Id:Mailing-List:Delivered-To:Reply-To:List-Unsubscribe-Post:List-Unsubscribe:Content-Transfer-Encoding:Content-Type; s=20140610; t=1708617677; v=1; b=C53phjx1/lN0t6LAciD2IIpd7oJoYoaIrWLQF1RbNNbuEzDERXCJwfaiPN5AJNiyuOUZTsYU D2B3aBhI/MAIBr9atZ4JG1tEGexGOiRmDFdyzWNxTFrUIbtvKjDp2y9jFkQuIJa8xHTI3ucWUC+ A6YERBGx+5bKZlPsxiurG4Jo= X-Received: by 127.0.0.2 with SMTP id bM0pYY7687511x5X3QcTHNAh; Thu, 22 Feb 2024 08:01:17 -0800 X-Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mx.groups.io with SMTP id smtpd.web10.16486.1708617674661628024 for ; Thu, 22 Feb 2024 08:01:14 -0800 X-Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-195-ySd7Y6ODPYiqNOYRpRpEyA-1; Thu, 22 Feb 2024 11:01:11 -0500 X-MC-Unique: ySd7Y6ODPYiqNOYRpRpEyA-1 X-Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9B9DE185A785; Thu, 22 Feb 2024 16:01:11 +0000 (UTC) X-Received: from sirius.home.kraxel.org (unknown [10.39.192.237]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3CE2C8CF2; Thu, 22 Feb 2024 16:01:11 +0000 (UTC) X-Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 437FA1801EA8; Thu, 22 Feb 2024 17:01:06 +0100 (CET) From: "Gerd Hoffmann" To: devel@edk2.groups.io Cc: Laszlo Ersek , Ray Ni , Rahul Kumar , Oliver Steffen , Gerd Hoffmann Subject: [edk2-devel] [PATCH v3 5/6] UefiCpuPkg/MpInitLib: Add support for multiple HOBs to SaveCpuMpData() Date: Thu, 22 Feb 2024 17:01:05 +0100 Message-ID: <20240222160106.686484-6-kraxel@redhat.com> In-Reply-To: <20240222160106.686484-1-kraxel@redhat.com> References: <20240222160106.686484-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Precedence: Bulk List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,kraxel@redhat.com List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: aTrXRVFXf5AHsQQKX8zSgebIx7686176AA= Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=20140610 header.b=C53phjx1; dmarc=fail reason="SPF not aligned (relaxed), DKIM not aligned (relaxed)" header.from=redhat.com (policy=none); spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce@groups.io Add support for splitting Hand-Off data into multiple HOBs. This is required for VMs with thousands of CPUs. Signed-off-by: Gerd Hoffmann --- UefiCpuPkg/Library/MpInitLib/PeiMpLib.c | 44 +++++++++++++++---------- 1 file changed, 27 insertions(+), 17 deletions(-) diff --git a/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c b/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c index f80e00edcff3..00d48c2ab531 100644 --- a/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c @@ -126,35 +126,45 @@ SaveCpuMpData ( IN CPU_MP_DATA *CpuMpData ) { + UINT32 MaxCpusPerHob, CpusInHob; UINT64 Data64; - UINTN Index; + UINT32 Index, HobBase; CPU_INFO_IN_HOB *CpuInfoInHob; MP_HAND_OFF *MpHandOff; UINTN MpHandOffSize; + MaxCpusPerHob = (0xFFF8 - sizeof (EFI_HOB_GUID_TYPE) - sizeof (MP_HAND_OFF)) / sizeof (PROCESSOR_HAND_OFF); + // // When APs are in a state that can be waken up by a store operation to a memory address, // report the MP_HAND_OFF data for DXE to use. // - CpuInfoInHob = (CPU_INFO_IN_HOB *)(UINTN)CpuMpData->CpuInfoInHob; - MpHandOffSize = sizeof (MP_HAND_OFF) + sizeof (PROCESSOR_HAND_OFF) * CpuMpData->CpuCount; - MpHandOff = (MP_HAND_OFF *)BuildGuidHob (&mMpHandOffGuid, MpHandOffSize); - ASSERT (MpHandOff != NULL); - ZeroMem (MpHandOff, MpHandOffSize); - MpHandOff->ProcessorIndex = 0; + CpuInfoInHob = (CPU_INFO_IN_HOB *)(UINTN)CpuMpData->CpuInfoInHob; - MpHandOff->CpuCount = CpuMpData->CpuCount; - if (CpuMpData->ApLoopMode != ApInHltLoop) { - MpHandOff->StartupSignalValue = MP_HAND_OFF_SIGNAL; - MpHandOff->WaitLoopExecutionMode = sizeof (VOID *); - } + for (Index = 0; Index < CpuMpData->CpuCount; Index++) { + if (Index % MaxCpusPerHob == 0) { + HobBase = Index; + CpusInHob = MIN (CpuMpData->CpuCount - HobBase, MaxCpusPerHob); - for (Index = 0; Index < MpHandOff->CpuCount; Index++) { - MpHandOff->Info[Index].ApicId = CpuInfoInHob[Index].ApicId; - MpHandOff->Info[Index].Health = CpuInfoInHob[Index].Health; + MpHandOffSize = sizeof (MP_HAND_OFF) + sizeof (PROCESSOR_HAND_OFF) * CpusInHob; + MpHandOff = (MP_HAND_OFF *)BuildGuidHob (&mMpHandOffGuid, MpHandOffSize); + ASSERT (MpHandOff != NULL); + ZeroMem (MpHandOff, MpHandOffSize); + + MpHandOff->ProcessorIndex = HobBase; + MpHandOff->CpuCount = CpusInHob; + + if (CpuMpData->ApLoopMode != ApInHltLoop) { + MpHandOff->StartupSignalValue = MP_HAND_OFF_SIGNAL; + MpHandOff->WaitLoopExecutionMode = sizeof (VOID *); + } + } + + MpHandOff->Info[Index-HobBase].ApicId = CpuInfoInHob[Index].ApicId; + MpHandOff->Info[Index-HobBase].Health = CpuInfoInHob[Index].Health; if (CpuMpData->ApLoopMode != ApInHltLoop) { - MpHandOff->Info[Index].StartupSignalAddress = (UINT64)(UINTN)CpuMpData->CpuData[Index].StartupApSignal; - MpHandOff->Info[Index].StartupProcedureAddress = (UINT64)(UINTN)&CpuMpData->CpuData[Index].ApFunction; + MpHandOff->Info[Index-HobBase].StartupSignalAddress = (UINT64)(UINTN)CpuMpData->CpuData[Index].StartupApSignal; + MpHandOff->Info[Index-HobBase].StartupProcedureAddress = (UINT64)(UINTN)&CpuMpData->CpuData[Index].ApFunction; } } -- 2.43.2 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. 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