Re: [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to Mem

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Re: [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to Mem

From:	Philippe Mathieu-Daudé
Subject:	Re: [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to MemTxAttrs
Date:	Tue, 21 Feb 2023 11:42:02 +0100
User-agent:	Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.8.0

On 21/2/23 11:01, Richard Henderson wrote:

On 2/20/23 21:56, Philippe Mathieu-Daudé wrote:

'secure' & 'user' seem mutually exclusive. If we get short in bits,
they could be shared.


They are not.  ARM has Secure EL0, or secure user mode.


Oh, I misunderstood this field with user-emulation then (I tried
commenting it and my TCG/HVF build succeeded).

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[PATCH v2 00/21] target/arm: Implement FEAT_RME, Richard Henderson, 2023/02/20
- [PATCH v2 01/21] target/arm: Rewrite check_s2_mmu_setup, Richard Henderson, 2023/02/20
- [PATCH v2 02/21] target/arm: Add isar_feature_aa64_rme, Richard Henderson, 2023/02/20
- [PATCH v2 03/21] target/arm: Update SCR and HCR for RME, Richard Henderson, 2023/02/20
- [PATCH v2 04/21] target/arm: SCR_EL3.NS may be RES1, Richard Henderson, 2023/02/20
- [PATCH v2 05/21] target/arm: Add RME cpregs, Richard Henderson, 2023/02/20
- [PATCH v2 06/21] target/arm: Introduce ARMSecuritySpace, Richard Henderson, 2023/02/20
- [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to MemTxAttrs, Richard Henderson, 2023/02/20
  - Re: [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to MemTxAttrs, Philippe Mathieu-Daudé, 2023/02/21
    - Re: [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to MemTxAttrs, Richard Henderson, 2023/02/21
    - Re: [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to MemTxAttrs, Philippe Mathieu-Daudé <=
    - Re: [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to MemTxAttrs, Richard Henderson, 2023/02/21
    - Re: [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to MemTxAttrs, Philippe Mathieu-Daudé, 2023/02/21
- [PATCH v2 08/21] target/arm: Adjust the order of Phys and Stage2 ARMMMUIdx, Richard Henderson, 2023/02/20
- [PATCH v2 09/21] target/arm: Introduce ARMMMUIdx_Phys_{Realm,Root}, Richard Henderson, 2023/02/20
- [PATCH v2 10/21] target/arm: Pipe ARMSecuritySpace through ptw.c, Richard Henderson, 2023/02/20
- [PATCH v2 11/21] target/arm: NSTable is RES0 for the RME EL3 regime, Richard Henderson, 2023/02/20
- [PATCH v2 12/21] target/arm: Handle Block and Page bits for security space, Richard Henderson, 2023/02/20
- [PATCH v2 13/21] target/arm: Handle no-execute for Realm and Root regimes, Richard Henderson, 2023/02/20
- [PATCH v2 14/21] target/arm: Use get_phys_addr_with_struct in S1_ptw_translate, Richard Henderson, 2023/02/20
- [PATCH v2 15/21] target/arm: Move s1_is_el0 into S1Translate, Richard Henderson, 2023/02/20

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