[bootwrapper PATCH 0/2] aarch64: Prepare EL3 for MDSELR_EL1

Mark Rutland mark.rutland at arm.com
Thu Apr 18 03:43:16 PDT 2024


On Wed, Apr 17, 2024 at 08:55:15AM +0530, Anshuman Khandual wrote:
> On 4/4/24 13:07, Anshuman Khandual wrote:
> > MDSELR_EL1 register will be used to configure breakpoint and watchpoint
> > register banks when FEAT_Debugv8p9 is enabled. This series prepares EL3
> > for MDSELR_EL1 access traps into EL3, and into EL2 via new Fine Grained
> > Traps Enable 2 (FEAT_FGT2) registers.
> > 
> > Anshuman Khandual (2):
> >   aarch64: Disable trapping into EL3 while accessing MDSELR_EL1
> >   aarch64: Disable trapping into EL3 while accessing FEAT_FGT2 registers
> > 
> >  arch/aarch64/include/asm/cpu.h | 3 +++
> >  arch/aarch64/init.c            | 6 ++++++
> >  2 files changed, 9 insertions(+)
> > 
> 
> Hello Mark,
> 
> Gentle ping, any updates on this series ?

I've picked up the first patch, but I don't beleive that the second is
complete. Please see my comments there.

Mark.



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