mirror of https://github.com/acidanthera/audk.git
451521ccbc
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4172 TDVF once accepts memory only by BSP. To improve the boot performance this patch introduce the multi-core accpet memory. Multi-core means BSP and APs work together to accept memory. TDVF leverages mailbox to wake up APs. It is not enabled in MpInitLib (Which requires SIPI). So multi-core accept memory cannot leverages MpInitLib to coordinate BSP and APs to work together. So TDVF split the accept memory into 2 phases. - AcceptMemoryForAPsStack: BSP accepts a small piece of memory which is then used by APs to setup stack. We assign a 16KB stack for each AP. So a td-guest with 256 vCPU requires 255*16KB = 4080KB. - AcceptMemory: After above small piece of memory is accepted, BSP commands APs to accept memory by sending AcceptPages command in td-mailbox. Together with the command and accpet-function, the APsStack address is send as well. APs then set the stack and jump to accept-function to accept memory. AcceptMemoryForAPsStack accepts as small memory as possible and then jump to AcceptMemory. It fully takes advantage of BSP/APs to work together. After accept memory is done, the memory region for APsStack is not used anymore. It can be used as other private memory. Because accept-memory is in the very beginning of boot process and it will not impact other phases. Cc: Erdem Aktas <erdemaktas@google.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Min Xu <min.m.xu@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> |
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| .. | ||
| AcpiTimerLib | ||
| BaseCachingPciExpressLib | ||
| BaseMemEncryptSevLib | ||
| BaseMemEncryptTdxLib | ||
| BasePciCapLib | ||
| BasePciCapPciSegmentLib | ||
| BhyveFwCtlLib | ||
| BlobVerifierLibNull | ||
| CcExitLib | ||
| CcProbeLib | ||
| DxePciLibI440FxQ35 | ||
| EmuVariableFvbLib | ||
| GenericQemuLoadImageLib | ||
| HardwareInfoLib | ||
| LoadLinuxLib | ||
| LockBoxLib | ||
| MpInitLibDepLib | ||
| NvVarsFileLib | ||
| PciHostBridgeLib | ||
| PciHostBridgeLibScan | ||
| PciHostBridgeUtilityLib | ||
| PeilessStartupLib | ||
| PlatformBmPrintScLib | ||
| PlatformBootManagerLib | ||
| PlatformBootManagerLibBhyve | ||
| PlatformBootManagerLibGrub | ||
| PlatformDebugLibIoPort | ||
| PlatformFvbLibNull | ||
| PlatformHasIoMmuLib | ||
| PlatformInitLib | ||
| PlatformSecureLib | ||
| PxeBcPcdProducerLib | ||
| QemuBootOrderLib | ||
| QemuFwCfgLib | ||
| QemuFwCfgS3Lib | ||
| QemuFwCfgSimpleParserLib | ||
| ResetSystemLib | ||
| SerializeVariablesLib | ||
| SmbiosVersionLib | ||
| SmmCpuFeaturesLib | ||
| SmmCpuPlatformHookLibQemu | ||
| Tcg2PhysicalPresenceLibNull | ||
| Tcg2PhysicalPresenceLibQemu | ||
| TdxMailboxLib | ||
| TlsAuthConfigLib | ||
| UefiDriverEntryPointFwCfgOverrideLib | ||
| UefiPciCapPciIoLib | ||
| VirtioLib | ||
| VirtioMmioDeviceLib | ||
| X86QemuLoadImageLib | ||
| XenConsoleSerialPortLib | ||
| XenHypercallLib | ||
| XenIoMmioLib | ||
| XenPlatformLib | ||
| XenRealTimeClockLib | ||