From: Alex Bennée <alex.ben...@linaro.org>
As we haven't always had guest debug support we need to probe for it.
Additionally we don't do this in the start-up capability code so we
don't fall over on old kernels.
Signed-off-by: Alex Bennée <alex.ben...@linaro.org>
Message-id: 1449599553-24713-2-git-send-email-alex.ben...@linaro.org
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
target-arm/kvm64.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/target-arm/kvm64.c b/target-arm/kvm64.c
index ceebfeb..d087794 100644
--- a/target-arm/kvm64.c
+++ b/target-arm/kvm64.c
@@ -25,6 +25,22 @@
#include "internals.h"
#include "hw/arm/arm.h"
+static bool have_guest_debug;
+
+/**
+ * kvm_arm_init_debug()
+ * @cs: CPUState
+ *
+ * Check for guest debug capabilities.
+ *
+ */
+static void kvm_arm_init_debug(CPUState *cs)
+{
+ have_guest_debug = kvm_check_extension(cs->kvm_state,
+ KVM_CAP_SET_GUEST_DEBUG);
+ return;
+}
+
static inline void set_feature(uint64_t *features, int feature)
{
*features |= 1ULL << feature;
@@ -121,6 +137,8 @@ int kvm_arch_init_vcpu(CPUState *cs)
}
cpu->mp_affinity = mpidr & ARM64_AFFINITY_MASK;
+ kvm_arm_init_debug(cs);
+
return kvm_arm_init_cpreg_list(cpu);
}
--
1.9.1
