From 0995bf8cd91b81ec9c1078e37b808794080dc5c0 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Sun, 26 Apr 2015 16:49:25 +0100 Subject: [PATCH] target-arm: Add user-mode transaction attribute MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add a transaction attribute indicating that a memory access is being done from user-mode (unprivileged). This corresponds to an equivalent signal in ARM AMBA buses. Signed-off-by: Peter Maydell Reviewed-by: Alex Bennée --- include/exec/memattrs.h | 2 ++ target-arm/helper.c | 1 + 2 files changed, 3 insertions(+) diff --git a/include/exec/memattrs.h b/include/exec/memattrs.h index 68a9c760d5..1389b4b01d 100644 --- a/include/exec/memattrs.h +++ b/include/exec/memattrs.h @@ -31,6 +31,8 @@ typedef struct MemTxAttrs { unsigned int unspecified:1; /* ARM/AMBA TrustZone Secure access */ unsigned int secure:1; + /* Memory access is usermode (unprivileged) */ + unsigned int user:1; } MemTxAttrs; /* Bus masters which don't specify any attributes will get this, diff --git a/target-arm/helper.c b/target-arm/helper.c index a01ff7fccc..50469cdae0 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -5749,6 +5749,7 @@ static inline int get_phys_addr(CPUARMState *env, target_ulong address, * to secure. */ attrs->secure = regime_is_secure(env, mmu_idx); + attrs->user = regime_is_user(env, mmu_idx); /* Fast Context Switch Extension. This doesn't exist at all in v8. * In v7 and earlier it affects all stage 1 translations. -- 2.30.2