45a70db3c3
These settings will allow CpuMpPei and CpuDxe to wait for the initial AP
check-ins exactly as long as necessary.
It is safe to set PcdCpuMaxLogicalProcessorNumber and
PcdCpuApInitTimeOutInMicroSeconds in OvmfPkg/PlatformPei.
OvmfPkg/PlatformPei installs the permanent PEI RAM, producing
gEfiPeiMemoryDiscoveredPpiGuid, and UefiCpuPkg/CpuMpPei has a depex on
gEfiPeiMemoryDiscoveredPpiGuid.
It is safe to read the fw_cfg item QemuFwCfgItemSmpCpuCount (0x0005). It
was added to QEMU in 2008 as key FW_CFG_NB_CPUS, in commit 905fdcb5264c
("Add common keys to firmware configuration"). Even if the key is
unavailable (or if fw_cfg is entirely unavailable, for example on Xen),
QemuFwCfgRead16() will return 0, and then we stick with the current
behavior.
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
107 lines
1.9 KiB
C
107 lines
1.9 KiB
C
/** @file
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Platform PEI module include file.
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Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _PLATFORM_PEI_H_INCLUDED_
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#define _PLATFORM_PEI_H_INCLUDED_
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#include <IndustryStandard/E820.h>
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VOID
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AddIoMemoryBaseSizeHob (
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EFI_PHYSICAL_ADDRESS MemoryBase,
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UINT64 MemorySize
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);
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VOID
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AddIoMemoryRangeHob (
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EFI_PHYSICAL_ADDRESS MemoryBase,
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EFI_PHYSICAL_ADDRESS MemoryLimit
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);
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VOID
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AddMemoryBaseSizeHob (
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EFI_PHYSICAL_ADDRESS MemoryBase,
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UINT64 MemorySize
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);
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VOID
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AddMemoryRangeHob (
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EFI_PHYSICAL_ADDRESS MemoryBase,
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EFI_PHYSICAL_ADDRESS MemoryLimit
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);
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VOID
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AddReservedMemoryBaseSizeHob (
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EFI_PHYSICAL_ADDRESS MemoryBase,
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UINT64 MemorySize,
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BOOLEAN Cacheable
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);
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VOID
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AddressWidthInitialization (
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VOID
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);
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EFI_STATUS
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PublishPeiMemory (
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VOID
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);
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UINT32
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GetSystemMemorySizeBelow4gb (
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VOID
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);
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VOID
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InitializeRamRegions (
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VOID
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);
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EFI_STATUS
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PeiFvInitialization (
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VOID
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);
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VOID
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InstallFeatureControlCallback (
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VOID
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);
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EFI_STATUS
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InitializeXen (
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VOID
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);
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BOOLEAN
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XenDetect (
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VOID
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);
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extern BOOLEAN mXen;
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VOID
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XenPublishRamRegions (
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VOID
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);
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extern EFI_BOOT_MODE mBootMode;
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extern BOOLEAN mS3Supported;
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extern UINT8 mPhysMemAddressWidth;
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extern UINT32 mMaxCpuCount;
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#endif // _PLATFORM_PEI_H_INCLUDED_
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