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A comment on So you want to build an embedded Linux system? (2020). Parent comment

Re:So you want to build an embedded Linux system? (2020) by jlokier on Wednesday February 09, 2022 @06:43PM (#30280459)
Modern x86 does this.

The BIOS starts running on the x86's internal SRAM.

https://stackoverflow.com/questions/63159663/how-does-bios-i...

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Re:So you want to build an embedded Linux system? (2020) by rasz on Wednesday February 09, 2022 @07:41PM (#30280953)
Not exactly. Cache as Ram is used for stack/temp storage until proper ram is initialized. Code itself runs from flash until optional bios caching is turned on in the chipset.
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