Re: [PATCH v4.1] arm64: hw_breakpoint: Allow EL2 breakpoints if running in HYP

From	Will Deacon <will.deacon@arm.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v4.1] arm64: hw_breakpoint: Allow EL2 breakpoints if running in HYP
Date	2016-02-19 15:40 +0100
Message-ID	<r3UnV-6pv-37@gated-at.bofh.it> (permalink)
References	<r14tt-4eC-47@gated-at.bofh.it> <r3eym-1js-3@gated-at.bofh.it>
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On Wed, Feb 17, 2016 at 05:58:43PM +0000, Marc Zyngier wrote:
> With VHE, we place kernel {watch,break}-points at EL2 to get things
> like kgdb and "perf -e mem:..." working.
> 
> This requires a bit of repainting in the low-level encore/decode,
> but is otherwise pretty simple.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
> ---
>  arch/arm64/include/asm/hw_breakpoint.h | 18 +++++++++++++-----
>  1 file changed, 13 insertions(+), 5 deletions(-)

Acked-by: Will Deacon <will.deacon@arm.com>

Will

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[PATCH v4 22/23] arm64: VHE: Add support for running Linux in EL2 mode Marc Zyngier <marc.zyngier@arm.com> - 2016-02-11 19:50 +0100
  [PATCH v4.1] arm64: hw_breakpoint: Allow EL2 breakpoints if running in HYP Marc Zyngier <marc.zyngier@arm.com> - 2016-02-17 19:00 +0100
    Re: [PATCH v4.1] arm64: hw_breakpoint: Allow EL2 breakpoints if  running in HYP Will Deacon <will.deacon@arm.com> - 2016-02-19 15:40 +0100

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