Improving the boot experience POST OS Initialization Service & App Initialization Service & App Init.

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Presentation transcript:

Improving the boot experience

POST OS Initialization Service & App Initialization Service & App Init

POSTExplorer Init. Device Init. Hiber Resume 2s 4s 6s 7s OEM Logo Clean, high-resolution branding elements persist through OS boot Post with highest supported native resolution Seamless single graphics transition from firmware to native OS driver

Enhancing security

POST Firmwar e OK? BootMg rOK? Boot Critical Drivers OK? NTOS Kernel OK? UEFI Recovery? Firmware Last Resort Secure Boot Remediation / Recovery Early Launch Anti-malware (ELAM) Window s Logon Reboot

Design guidance

Firmware Platform Specific UEFI Firmware Windows OS System Hardware UEFI Runtime Services UEFI OS Loader ACPI BIOS ACPI Registers ACPI Tables ACPI Driver UEFI Win32/NT APIs Compatibility Support Module (CSM) BIOS OS Loader Legacy BIOS

InterfaceLegacy BIOSUEFI Architecturex86 / X64 onlyAgnostic Mode16 bit (real mode)32/64 bit Boot PartitionMBR (2.2 TB limit)GPT (9.4 ZB* limit) Runtime Services NoYes Driver modelNoYes POST GraphicsVGAGraphical Output Protocol (GOP) * A zettabyte is equal to 1B terabytes. The total amount of global data was expected to pass 1.2 ZB sometime during 2010.

Recap

BACKUP

38.2% from top to middle of logo Max 40% This space reserved for OS