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| author | Peter Maydell <peter.maydell@linaro.org> | 2017-09-07 13:54:52 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2017-09-07 13:54:52 +0100 |
| commit | 1e577cc7cffd3de14dbd321de5c3ef191c6ab07f (patch) | |
| tree | 7458a34012b0601998c8b38e7dcc4bdd396083d2 /target/arm/cpu.h | |
| parent | 504e3cc36b68b34c176f3f4116b1d5677471ec20 (diff) | |
| download | qemu-1e577cc7cffd3de14dbd321de5c3ef191c6ab07f.zip qemu-1e577cc7cffd3de14dbd321de5c3ef191c6ab07f.tar.gz qemu-1e577cc7cffd3de14dbd321de5c3ef191c6ab07f.tar.bz2 | |
target/arm: Add state field, feature bit and migration for v8M secure state
As the first step in implementing ARM v8M's security extension:
* add a new feature bit ARM_FEATURE_M_SECURITY
* add the CPU state field that indicates whether the CPU is
currently in the secure state
* add a migration subsection for this new state
(we will add the Secure copies of banked register state
to this subsection in later patches)
* add a #define for the one new-in-v8M exception type
* make the CPU debug log print S/NS status
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 1503414539-28762-4-git-send-email-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/cpu.h')
| -rw-r--r-- | target/arm/cpu.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 9fd5de7..02919a3 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -66,6 +66,7 @@ #define ARMV7M_EXCP_MEM 4 #define ARMV7M_EXCP_BUS 5 #define ARMV7M_EXCP_USAGE 6 +#define ARMV7M_EXCP_SECURE 7 #define ARMV7M_EXCP_SVC 11 #define ARMV7M_EXCP_DEBUG 12 #define ARMV7M_EXCP_PENDSV 14 @@ -420,6 +421,7 @@ typedef struct CPUARMState { int exception; uint32_t primask; uint32_t faultmask; + uint32_t secure; /* Is CPU in Secure state? (not guest visible) */ } v7m; /* Information associated with an exception about to be taken: @@ -1263,6 +1265,7 @@ enum arm_features { ARM_FEATURE_THUMB_DSP, /* DSP insns supported in the Thumb encodings */ ARM_FEATURE_PMU, /* has PMU support */ ARM_FEATURE_VBAR, /* has cp15 VBAR */ + ARM_FEATURE_M_SECURITY, /* M profile Security Extension */ }; static inline int arm_feature(CPUARMState *env, int feature) |