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include/exec/memattrs: Add two bits of space to MemTxAttrs

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We will need 2 bits to represent ARMSecurityState.

Do not attempt to replace or widen secure, even though it
logically overlaps the new field -- there are uses within
e.g. hw/block/pflash_cfi01.c, which don't know anything
specific about ARM.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2023-06-23 11:15:44 +01:00 committed by Peter Maydell
parent 5d28ac0cf7
commit 4d6e1c6495
1 changed files with 8 additions and 1 deletions
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9
include/exec/memattrs.h
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@ -29,10 +29,17 @@ typedef struct MemTxAttrs {
* "didn't specify" if necessary. * "didn't specify" if necessary.
*/ */
unsigned int unspecified:1; unsigned int unspecified:1;
/* ARM/AMBA: TrustZone Secure access /*
* ARM/AMBA: TrustZone Secure access
* x86: System Management Mode access * x86: System Management Mode access
*/ */
unsigned int secure:1; unsigned int secure:1;
/*
* ARM: ArmSecuritySpace. This partially overlaps secure, but it is
* easier to have both fields to assist code that does not understand
* ARMv9 RME, or no specific knowledge of ARM at all (e.g. pflash).
*/
unsigned int space:2;
/* Memory access is usermode (unprivileged) */ /* Memory access is usermode (unprivileged) */
unsigned int user:1; unsigned int user:1;
/* /*