Cache-as-RAM!

Initialize the bootstrap state
No DRAM yet, but we can't wait
Cache lines mapped to physical space
Bootstrap code finds its base

Mtrrs guide memory type arrays
Cache coherency can't decay
Ring zero execution phase
Watch the memory mapping race

Cache-as-RAM! (Cache-as-RAM!)
Breaking free from post restraints
Cache-as-RAM! (Cache-as-RAM!)
Early execution claims its place
Stack pointer rising through cache ways
Cache-as-RAM will guide us through this phase!

No-eviction mode engaged
Write-back policy arranged
Cache regions mapped and flow
Where the startup code can grow

Assembly dance in bsp flow
Cache ways become our temporal home
Until the DRAM comes alive
Cache-as-RAM helps us survive!

Cache-as-RAM! (Cache-as-RAM!)
Breaking free from post restraints
Cache-as-RAM! (Cache-as-RAM!)
Early execution claims its place
Stack pointer rising through L1 ways
Cache-as-RAM will guide us through this phase!

From cold boot to memory train
Cache-as-RAM maintains the frame
Soon the DRAM will awake
But this moment we'll never forsake!