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Re: [Qemu-devel] [PATCH 5/5] target-arm: Thread ID Registers are ARMv6K
From: |
Laurent Desnogues |
Subject: |
Re: [Qemu-devel] [PATCH 5/5] target-arm: Thread ID Registers are ARMv6K + |
Date: |
Tue, 26 Jan 2010 17:28:57 +0100 |
On Tue, Jan 26, 2010 at 5:00 PM, Riku Voipio <address@hidden> wrote:
> From: Riku Voipio <address@hidden>
>
> Change the system-emulation code also to only support accessing
> the cp15.c13 Thread ID registers on ARMv6K and newer.
>
> Signed-off-by: Riku Voipio <address@hidden>
> ---
> target-arm/helper.c | 12 ++++++++++++
> 1 files changed, 12 insertions(+), 0 deletions(-)
>
> diff --git a/target-arm/helper.c b/target-arm/helper.c
> index 68578ce..1245d9d 100644
> --- a/target-arm/helper.c
> +++ b/target-arm/helper.c
> @@ -1517,12 +1517,18 @@ void HELPER(set_cp15)(CPUState *env, uint32_t insn,
> uint32_t val)
> env->cp15.c13_context = val;
> break;
> case 2:
> + if (!arm_feature(env, ARM_FEATURE_V6K))
> + goto bad_reg;
> env->cp15.c13_tls1 = val;
> break;
> case 3:
> + if (!arm_feature(env, ARM_FEATURE_V6K))
> + goto bad_reg;
> env->cp15.c13_tls2 = val;
> break;
> case 4:
> + if (!arm_feature(env, ARM_FEATURE_V6K))
> + goto bad_reg;
> env->cp15.c13_tls3 = val;
> break;
> default:
> @@ -1805,10 +1811,16 @@ uint32_t HELPER(get_cp15)(CPUState *env, uint32_t
> insn)
> case 1:
> return env->cp15.c13_context;
> case 2:
> + if (!arm_feature(env, ARM_FEATURE_V6K))
> + goto bad_reg;
> return env->cp15.c13_tls1;
> case 3:
> + if (!arm_feature(env, ARM_FEATURE_V6K))
> + goto bad_reg;
> return env->cp15.c13_tls2;
> case 4:
> + if (!arm_feature(env, ARM_FEATURE_V6K))
> + goto bad_reg;
> return env->cp15.c13_tls3;
> default:
> goto bad_reg;
Same question as for user mode :-)
Laurent
- [Qemu-devel] [PATCH 0/5] linux-user for-usptream patches, Riku Voipio, 2010/01/26
- [Qemu-devel] [PATCH 4/5] linux-user: Add access to TLS registers, Riku Voipio, 2010/01/26
- [Qemu-devel] [PATCH 2/5] fix locking error with current_tb, Riku Voipio, 2010/01/26
- [Qemu-devel] [PATCH 1/5] linux-user: adapt uname machine to emulated CPU, Riku Voipio, 2010/01/26
- [Qemu-devel] [PATCH 5/5] target-arm: Thread ID Registers are ARMv6K +, Riku Voipio, 2010/01/26
- Re: [Qemu-devel] [PATCH 5/5] target-arm: Thread ID Registers are ARMv6K +,
Laurent Desnogues <=
- [Qemu-devel] [PATCH 3/5] linux-user: remove signal handler before calling abort(), Riku Voipio, 2010/01/26