Re: [PATCH v3 27/27] target/i386/kvm: Improve KVM_EXIT_NOTIFY warnings

[Peter Maydell]

On Fri, 12 Apr 2024 at 08:37, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  target/i386/kvm/kvm.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
> index e68cbe9293..1fc809b2f9 100644
> --- a/target/i386/kvm/kvm.c
> +++ b/target/i386/kvm/kvm.c
> @@ -5275,7 +5275,6 @@ int kvm_arch_handle_exit(CPUState *cs, struct kvm_run 
> *run)
>      uint64_t code;
>      int ret;
>      bool ctx_invalid;
> -    char str[256];
>      KVMState *state;
>
>      switch (run->exit_reason) {
> @@ -5335,15 +5334,16 @@ int kvm_arch_handle_exit(CPUState *cs, struct kvm_run 
> *run)
>      case KVM_EXIT_NOTIFY:
>          ctx_invalid = !!(run->notify.flags & KVM_NOTIFY_CONTEXT_INVALID);
>          state = KVM_STATE(current_accel());
> -        sprintf(str, "Encounter a notify exit with %svalid context in"
> -                     " guest. There can be possible misbehaves in guest."
> -                     " Please have a look.", ctx_invalid ? "in" : "");
>          if (ctx_invalid ||
>              state->notify_vmexit == NOTIFY_VMEXIT_OPTION_INTERNAL_ERROR) {
> -            warn_report("KVM internal error: %s", str);
> +            warn_report("KVM internal error: Encountered a notify exit "
> +                        "with invalid context in guest.");
>              ret = -1;
>          } else {
> -            warn_report_once("KVM: %s", str);
> +            warn_report_once("KVM: Encounterd a notify exit with valid "

"Encountered"

> +                             "context in guest. "
> +                             "The guest could be misbehaving. "
> +                             "Please have a look.");

"Please have a look" is a bit more chatty than we usually are
in warning messages...

thanks
-- PMM