Commit 0995bf8c authored by Peter Maydell's avatar Peter Maydell
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target-arm: Add user-mode transaction attribute 



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: default avatarPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: default avatarAlex Bennée <alex.bennee@linaro.org>
parent ebca90e4

include/exec/memattrs.h

+2 −0
Original line number Diff line number Diff line
@@ -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,

target-arm/helper.c

+1 −0
Original line number Diff line number Diff line
@@ -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.