On 26/01/2021 14:18, Jan Beulich wrote:
>> +static int vmtrace_set_option(struct vcpu *v, uint64_t key, uint64_t value)
>> +{
>> +struct vcpu_msrs *msrs = v->arch.msrs;
>> +bool new_en, old_en = msrs->rtit.ctl & RTIT_CTL_TRACE_EN;
>> +
>> +switch ( key )
>> +{
>> +case MSR_RTIT_
On 21.01.2021 22:27, Andrew Cooper wrote:
> --- a/xen/arch/x86/domctl.c
> +++ b/xen/arch/x86/domctl.c
> @@ -155,6 +155,55 @@ void arch_get_domain_info(const struct domain *d,
> info->arch_config.emulation_flags = d->arch.emulation_flags;
> }
>
> +static int do_vmtrace_op(struct domain *d, s
From: Michał Leszczyński
Implement an interface to configure and control tracing operations. Reuse the
existing SETDEBUGGING flask vector rather than inventing a new one.
Userspace using this interface is going to need platform specific knowledge
anyway to interpret the contents of the trace bu
