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[4.19,v2,0/2] arm64: entry: Place an SB sequence following an ERET instruction

Message ID 1598294112-19197-1-git-send-email-f.fainelli@gmail.com
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Series arm64: entry: Place an SB sequence following an ERET instruction | expand

Message

Florian Fainelli Aug. 24, 2020, 6:35 p.m. UTC 
Changes in v2:

- included missing preliminary patch to define the SB barrier instruction

Will Deacon (2):
  arm64: Add support for SB barrier and patch in over DSB; ISB sequences
  arm64: entry: Place an SB sequence following an ERET instruction

 arch/arm64/include/asm/assembler.h  | 13 +++++++++++++
 arch/arm64/include/asm/barrier.h    |  4 ++++
 arch/arm64/include/asm/cpucaps.h    |  3 ++-
 arch/arm64/include/asm/sysreg.h     |  6 ++++++
 arch/arm64/include/asm/uaccess.h    |  3 +--
 arch/arm64/include/uapi/asm/hwcap.h |  1 +
 arch/arm64/kernel/cpufeature.c      | 12 ++++++++++++
 arch/arm64/kernel/cpuinfo.c         |  1 +
 arch/arm64/kernel/entry.S           |  2 ++
 arch/arm64/kvm/hyp/entry.S          |  1 +
 arch/arm64/kvm/hyp/hyp-entry.S      |  4 ++++
 11 files changed, 47 insertions(+), 3 deletions(-)

Comments

Florian Fainelli Sept. 9, 2020, 3:04 a.m. UTC | #1 
On 8/24/2020 11:35 AM, Florian Fainelli wrote:
> Changes in v2:
> 
> - included missing preliminary patch to define the SB barrier instruction
> 
> Will Deacon (2):
>    arm64: Add support for SB barrier and patch in over DSB; ISB sequences
>    arm64: entry: Place an SB sequence following an ERET instruction

Does anybody at ARM or Android care about those changes? If so, would 
you be willing to review these?

Thanks

> 
>   arch/arm64/include/asm/assembler.h  | 13 +++++++++++++
>   arch/arm64/include/asm/barrier.h    |  4 ++++
>   arch/arm64/include/asm/cpucaps.h    |  3 ++-
>   arch/arm64/include/asm/sysreg.h     |  6 ++++++
>   arch/arm64/include/asm/uaccess.h    |  3 +--
>   arch/arm64/include/uapi/asm/hwcap.h |  1 +
>   arch/arm64/kernel/cpufeature.c      | 12 ++++++++++++
>   arch/arm64/kernel/cpuinfo.c         |  1 +
>   arch/arm64/kernel/entry.S           |  2 ++
>   arch/arm64/kvm/hyp/entry.S          |  1 +
>   arch/arm64/kvm/hyp/hyp-entry.S      |  4 ++++
>   11 files changed, 47 insertions(+), 3 deletions(-)
>