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BL2: Sanity check value in x0 in the entry point code

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Change-Id: Icef68e314e6ba0f3694189b57f4b1dbbea5ba255
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Sandrine Bailleux
2013-12-02 15:45:07 +00:00
committed by Dan Handley
parent ba6980a8db
commit 34edaed563
1 changed files with 8 additions and 0 deletions
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8
bl2/aarch64/bl2_entrypoint.S
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@@ -77,6 +77,14 @@ bl2_entrypoint:; .type bl2_entrypoint, %function
isb
/* ---------------------------------------------
* Check the opcodes out of paranoia.
* ---------------------------------------------
*/
mov x0, #RUN_IMAGE
cmp x0, x20
b.ne _panic
/* ---------------------------------------------
* Zero out NOBITS sections. There are 2 of them:
* - the .bss section;