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authorAlex Bennée <alex.bennee@linaro.org>2015-12-17 13:37:14 +0000
committerPeter Maydell <peter.maydell@linaro.org>2015-12-17 13:37:14 +0000
commit29eb3d9a911b13e2a66413ba5cc6c69a0f4a4528 (patch)
tree2d3f94cddebc58a83d3d46628fb5e9c74b97de08 /target-arm
parent3e6ebb64a392ebc712347413f1065300ed008a8f (diff)
downloadqemu-arm-29eb3d9a911b13e2a66413ba5cc6c69a0f4a4528.tar.gz
target-arm: kvm64 - introduce kvm_arm_init_debug()
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.bennee@linaro.org> Message-id: 1449599553-24713-2-git-send-email-alex.bennee@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/kvm64.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/target-arm/kvm64.c b/target-arm/kvm64.c
index ceebfeb774..d0877946b1 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);
}