Re: [PATCH v2 09/24] linux-user/riscv: implement indirect branch trackin

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Re: [PATCH v2 09/24] linux-user/riscv: implement indirect branch trackin

From:	Richard Henderson
Subject:	Re: [PATCH v2 09/24] linux-user/riscv: implement indirect branch tracking prctls
Date:	Tue, 30 Jul 2024 16:26:42 +1000
User-agent:	Mozilla Thunderbird

On 7/30/24 03:53, Deepak Gupta wrote:

+            /* set or clear branch tracking */
+            env->ufcfien = (flag & PR_INDIR_BR_LP_ENABLE);
+            tb_flush(env_cpu(env));


tb_flush is not required when you track enable properly in patch 5.


r~

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Re: [PATCH v2 03/24] target/riscv: save and restore elp state on priv transitions, (continued)
- [PATCH v2 05/24] target/riscv: tracking indirect branches (fcfi) for zicfilp, Deepak Gupta, 2024/07/29
  - Re: [PATCH v2 05/24] target/riscv: tracking indirect branches (fcfi) for zicfilp, Richard Henderson, 2024/07/29
- [PATCH v2 04/24] target/riscv: additional code information for sw check, Deepak Gupta, 2024/07/29
- [PATCH v2 06/24] target/riscv: zicfilp `lpad` impl and branch tracking, Deepak Gupta, 2024/07/29
- [PATCH v2 07/24] disas/riscv: enabled `lpad` disassembly, Deepak Gupta, 2024/07/29
- [PATCH v2 08/24] linux-user/syscall: introduce prctl for indirect branch tracking, Deepak Gupta, 2024/07/29
  - Re: [PATCH v2 08/24] linux-user/syscall: introduce prctl for indirect branch tracking, Richard Henderson, 2024/07/30
- [PATCH v2 09/24] linux-user/riscv: implement indirect branch tracking prctls, Deepak Gupta, 2024/07/29
  - Re: [PATCH v2 09/24] linux-user/riscv: implement indirect branch tracking prctls, Richard Henderson <=
- [PATCH v2 10/24] target/riscv: Add zicfiss extension, Deepak Gupta, 2024/07/29
- [PATCH v2 11/24] target/riscv: introduce ssp and enabling controls for zicfiss, Deepak Gupta, 2024/07/29
- [PATCH v2 16/24] target/riscv: shadow stack mmu index for shadow stack instructions, Deepak Gupta, 2024/07/29
- [PATCH v2 12/24] target/riscv: tb flag for shadow stack instructions, Deepak Gupta, 2024/07/29
- [PATCH v2 15/24] target/riscv: mmu changes for zicfiss shadow stack protection, Deepak Gupta, 2024/07/29
- [PATCH v2 13/24] target/riscv: implement zicfiss instructions, Deepak Gupta, 2024/07/29
- [PATCH v2 14/24] target/riscv: compressed encodings for sspush and sspopchk, Deepak Gupta, 2024/07/29
- [PATCH v2 17/24] linux-user/syscall: introduce prctl for shadow stack enable/disable, Deepak Gupta, 2024/07/29
- [PATCH v2 18/24] linux-user/riscv: setup/teardown zicfiss shadow stack for qemu-user, Deepak Gupta, 2024/07/29
- [PATCH v2 20/24] disas/riscv: enable disassembly for compressed sspush/sspopchk, Deepak Gupta, 2024/07/29

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