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ryzen reset vector #555

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ebarrera1211 opened this issue Jan 7, 2018 · 2 comments
Open

ryzen reset vector #555

ebarrera1211 opened this issue Jan 7, 2018 · 2 comments
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@ebarrera1211
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I thought the reset vector of ryzen has been randomnized. Is that not the case?
@0xAX
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0xAX commented Apr 1, 2018

@ebarrera1211 I didn't find info about it anywhere. Do you have any ideas where can I find description of reset vector specificity for ryzen cpu?

@DamianFekete
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Why would they randomize it? It would just complicate the implementation of motherboards and the BIOS to intercept that random address.
https://www.amd.com/system/files/TechDocs/24593.pdf still says that the Processor Initialization State will be:

  • RIP 0000_0000_0000_FFF0h
  • CS Selector = F000h
  • CS Base = 0000_0000_FFFF_0000h

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@DamianFekete @0xAX @ebarrera1211