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Re: [Qemu-devel] [PATCH 16/26] target/arm: Move NS TBFLAG from bit 19 to
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH 16/26] target/arm: Move NS TBFLAG from bit 19 to bit 6 |
Date: |
Tue, 23 Apr 2019 16:47:37 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 |
On 4/16/19 5:57 AM, Peter Maydell wrote:
> Move the NS TBFLAG down from bit 19 to bit 6, which has not
> been used since commit c1e3781090b9d36c60 in 2015, when we
> started passing the entire MMU index in the TB flags rather
> than just a 'privilege level' bit.
>
> This rearrangement is not strictly necessary, but means that
> we can put M-profile-only bits next to each other rather
> than scattered across the flag word.
>
> Signed-off-by: Peter Maydell <address@hidden>
> ---
> target/arm/cpu.h | 11 ++++++-----
> 1 file changed, 6 insertions(+), 5 deletions(-)
Reviewed-by: Richard Henderson <address@hidden>
r~
- [Qemu-devel] [PATCH 08/26] target/arm: Handle SFPA and FPCA bits in reads and writes of CONTROL, (continued)
- [Qemu-devel] [PATCH 08/26] target/arm: Handle SFPA and FPCA bits in reads and writes of CONTROL, Peter Maydell, 2019/04/16
- [Qemu-devel] [PATCH 11/26] target/arm: Implement v7m_update_fpccr(), Peter Maydell, 2019/04/16
- [Qemu-devel] [PATCH 12/26] target/arm: Clear CONTROL.SFPA in BXNS and BLXNS, Peter Maydell, 2019/04/16
- [Qemu-devel] [PATCH 14/26] target/arm: Allow for floating point in callee stack integrity check, Peter Maydell, 2019/04/16
- [Qemu-devel] [PATCH 13/26] target/arm: Clean excReturn bits when tail chaining, Peter Maydell, 2019/04/16
- [Qemu-devel] [PATCH 16/26] target/arm: Move NS TBFLAG from bit 19 to bit 6, Peter Maydell, 2019/04/16
- Re: [Qemu-devel] [PATCH 16/26] target/arm: Move NS TBFLAG from bit 19 to bit 6,
Richard Henderson <=
- [Qemu-devel] [PATCH 17/26] target/arm: Overlap VECSTRIDE and XSCALE_CPAR TB flags, Peter Maydell, 2019/04/16
- [Qemu-devel] [PATCH 15/26] target/arm: Handle floating point registers in exception return, Peter Maydell, 2019/04/16
- [Qemu-devel] [PATCH 18/26] target/arm: Set FPCCR.S when executing M-profile floating point insns, Peter Maydell, 2019/04/16
- [Qemu-devel] [PATCH 20/26] target/arm: New helper function arm_v7m_mmu_idx_all(), Peter Maydell, 2019/04/16
- [Qemu-devel] [PATCH 19/26] target/arm: Activate M-profile floating point context when FPCCR.ASPEN is set, Peter Maydell, 2019/04/16