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authorRob Herring <rob.herring@calxeda.com>2012-01-13 17:25:08 +0000
committerPeter Maydell <peter.maydell@linaro.org>2012-01-13 17:25:08 +0000
commit2be276242135eac6e86be2a8259545e620c94107 (patch)
tree19d69cd0f75acdfdafdf9b16915272fd69037df4 /target-arm
parentd3cb6e2b062f69e0a40f21b74a42f5c5a3422174 (diff)
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arm: Add dummy support for co-processor 15's secure config register
Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/cpu.h3
-rw-r--r--target-arm/helper.c9
-rw-r--r--target-arm/machine.c2
3 files changed, 13 insertions, 1 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index 26b4981..42c53a7 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -116,6 +116,7 @@ typedef struct CPUARMState {
uint32_t c1_sys; /* System control register. */
uint32_t c1_coproc; /* Coprocessor access register. */
uint32_t c1_xscaleauxcr; /* XScale auxiliary control register. */
+ uint32_t c1_scr; /* secure config register. */
uint32_t c2_base0; /* MMU translation table base 0. */
uint32_t c2_base1; /* MMU translation table base 1. */
uint32_t c2_control; /* MMU translation table base control. */
@@ -452,7 +453,7 @@ void cpu_arm_set_cp_io(CPUARMState *env, int cpnum,
#define cpu_signal_handler cpu_arm_signal_handler
#define cpu_list arm_cpu_list
-#define CPU_SAVE_VERSION 5
+#define CPU_SAVE_VERSION 6
/* MMU modes definitions */
#define MMU_MODE0_SUFFIX _kernel
diff --git a/target-arm/helper.c b/target-arm/helper.c
index fa42c64..00458fc 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -1440,6 +1440,11 @@ void HELPER(set_cp15)(CPUState *env, uint32_t insn, uint32_t val)
}
goto bad_reg;
case 1: /* System configuration. */
+ if (arm_feature(env, ARM_FEATURE_V7)
+ && op1 == 0 && crm == 1 && op2 == 0) {
+ env->cp15.c1_scr = val;
+ break;
+ }
if (arm_feature(env, ARM_FEATURE_OMAPCP))
op2 = 0;
switch (op2) {
@@ -1908,6 +1913,10 @@ uint32_t HELPER(get_cp15)(CPUState *env, uint32_t insn)
goto bad_reg;
}
case 1: /* System configuration. */
+ if (arm_feature(env, ARM_FEATURE_V7)
+ && op1 == 0 && crm == 1 && op2 == 0) {
+ return env->cp15.c1_scr;
+ }
if (arm_feature(env, ARM_FEATURE_OMAPCP))
op2 = 0;
switch (op2) {
diff --git a/target-arm/machine.c b/target-arm/machine.c
index 8984775..f66b8df 100644
--- a/target-arm/machine.c
+++ b/target-arm/machine.c
@@ -26,6 +26,7 @@ void cpu_save(QEMUFile *f, void *opaque)
qemu_put_be32(f, env->cp15.c1_sys);
qemu_put_be32(f, env->cp15.c1_coproc);
qemu_put_be32(f, env->cp15.c1_xscaleauxcr);
+ qemu_put_be32(f, env->cp15.c1_scr);
qemu_put_be32(f, env->cp15.c2_base0);
qemu_put_be32(f, env->cp15.c2_base1);
qemu_put_be32(f, env->cp15.c2_control);
@@ -143,6 +144,7 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
env->cp15.c1_sys = qemu_get_be32(f);
env->cp15.c1_coproc = qemu_get_be32(f);
env->cp15.c1_xscaleauxcr = qemu_get_be32(f);
+ env->cp15.c1_scr = qemu_get_be32(f);
env->cp15.c2_base0 = qemu_get_be32(f);
env->cp15.c2_base1 = qemu_get_be32(f);
env->cp15.c2_control = qemu_get_be32(f);