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| author | Alex Bennée <alex.bennee@linaro.org> | 2015-12-17 13:37:15 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-12-17 13:37:15 +0000 |
| commit | 26ae59348585e09d9386633984da211c87d52d4f (patch) | |
| tree | 41a25d601aef25dd9377dcefd8102bc9f726f188 | |
| parent | 2ecb2027bc5033dfa92d00d708723053f9689564 (diff) | |
| download | qemu-26ae59348585e09d9386633984da211c87d52d4f.tar.gz qemu-26ae59348585e09d9386633984da211c87d52d4f.tar.bz2 qemu-26ae59348585e09d9386633984da211c87d52d4f.zip | |
target-arm: kvm - support for single step
This adds support for single-step. There isn't much to do on the QEMU
side as after we set-up the request for single step via the debug ioctl
it is all handled within the kernel.
The actual setting of the KVM_GUESTDBG_SINGLESTEP flag is already in the
common code. If the kernel doesn't support guest debug the ioctl will
simply error.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1449599553-24713-4-git-send-email-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | target-arm/kvm64.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/target-arm/kvm64.c b/target-arm/kvm64.c index 3b3929dc24..5f96cde603 100644 --- a/target-arm/kvm64.c +++ b/target-arm/kvm64.c @@ -534,6 +534,13 @@ bool kvm_arm_handle_debug(CPUState *cs, struct kvm_debug_exit_arch *debug_exit) kvm_cpu_synchronize_state(cs); switch (hsr_ec) { + case EC_SOFTWARESTEP: + if (cs->singlestep_enabled) { + return true; + } else { + error_report("Came out of SINGLE STEP when not enabled"); + } + break; case EC_AA64_BKPT: if (kvm_find_sw_breakpoint(cs, env->pc)) { return true; |