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Re: [Qemu-devel] [PATCH 09/13] target/arm: Add v8M stack checks for Thum
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From: |
Richard Henderson |
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Subject: |
Re: [Qemu-devel] [PATCH 09/13] target/arm: Add v8M stack checks for Thumb2 LDM/STM |
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Date: |
Wed, 3 Oct 2018 15:17:28 -0500 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0 |
On 10/2/18 11:35 AM, Peter Maydell wrote:
> Add the v8M stack checks for:
> * LDM (T2 encoding)
> * STM (T2 encoding)
>
> This includes the 32-bit encodings of the instructions listed
> in v8M ARM ARM rule R_YVWT as
> * LDM, LDMIA, LDMFD
> * LDMDB, LDMEA
> * POP (multiple registers)
> * PUSH (muliple registers)
> * STM, STMIA, STMEA
> * STMDB, STMFD
>
> We perform the stack limit before doing any other part
> of the load or store.
>
> Signed-off-by: Peter Maydell <address@hidden>
> ---
> target/arm/translate.c | 19 ++++++++++++++++++-
> 1 file changed, 18 insertions(+), 1 deletion(-)
Reviewed-by: Richard Henderson <address@hidden>
r~
- [Qemu-devel] [PATCH 02/13] target/arm: Define new EXCP type for v8M stack overflows, (continued)
- [Qemu-devel] [PATCH 02/13] target/arm: Define new EXCP type for v8M stack overflows, Peter Maydell, 2018/10/02
- [Qemu-devel] [PATCH 05/13] target/arm: Add some comments in Thumb decode, Peter Maydell, 2018/10/02
- [Qemu-devel] [PATCH 04/13] target/arm: Add v8M stack checks on ADD/SUB/MOV of SP, Peter Maydell, 2018/10/02
- [Qemu-devel] [PATCH 09/13] target/arm: Add v8M stack checks for Thumb2 LDM/STM, Peter Maydell, 2018/10/02
- [Qemu-devel] [PATCH 06/13] target/arm: Add v8M stack checks on exception entry, Peter Maydell, 2018/10/02
- [Qemu-devel] [PATCH 07/13] target/arm: Add v8M stack limit checks on NS function calls, Peter Maydell, 2018/10/02
- [Qemu-devel] [PATCH 08/13] target/arm: Add v8M stack checks for LDRD/STRD (imm), Peter Maydell, 2018/10/02
- [Qemu-devel] [PATCH 11/13] target/arm: Add v8M stack checks for Thumb push/pop, Peter Maydell, 2018/10/02