diff mbox

[v5,2/6] target-arm: kvm64: introduce kvm_arm_init_debug()

Message ID 1432912764-7073-3-git-send-email-alex.bennee@linaro.org
State New
Headers show

Commit Message

Alex Bennée May 29, 2015, 3:19 p.m. UTC
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>
---
 target-arm/kvm64.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Comments

Peter Maydell June 4, 2015, 10:56 a.m. UTC | #1
On 29 May 2015 at 16:19, Alex Bennée <alex.bennee@linaro.org> wrote:
> 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>
> ---

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM
diff mbox

Patch

diff --git a/target-arm/kvm64.c b/target-arm/kvm64.c
index 93c1ca8..61592d2 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;
@@ -107,6 +123,8 @@  int kvm_arch_init_vcpu(CPUState *cs)
         return ret;
     }
 
+    kvm_arm_init_debug(cs);
+
     return kvm_arm_init_cpreg_list(cpu);
 }