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ArmPkg/ArmLib: delete AArch64 version of ArmReadIdPfr1 

The AArch64 version of ArmReadIdPfr1 is not used by any code in tree,
or in edk2-platforms. Delete it.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Leif Lindholm <leif@nuviainc.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
This commit is contained in:
Leif Lindholm 2020-12-18 13:40:29 +00:00 committed by mergify[bot]
parent 0dd0d42ab5
commit 982b0a5778
1 changed files with 0 additions and 8 deletions
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8
ArmPkg/Library/ArmLib/AArch64/AArch64Support.S
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@ -453,14 +453,6 @@ ASM_FUNC(ArmReadIdPfr0)
ret
// Q: id_aa64pfr1_el1 not defined yet. What does this function want to access?
// A: used to setup arch timer. Check if we have security extensions, permissions to set stuff.
// See: ArmPkg/Library/ArmArchTimerLib/AArch64/ArmArchTimerLib.c
// Not defined yet, but stick in here for now, should read all zeros.
ASM_FUNC(ArmReadIdPfr1)
mrs x0, id_aa64pfr1_el1 // Read ID_PFR1 Register
ret
// VOID ArmWriteHcr(UINTN Hcr)
ASM_FUNC(ArmWriteHcr)
msr hcr_el2, x0 // Write the passed HCR value