Re: [PATCH v2 4/7] x86/vmx: add do_vmtrace_op

[Michał Leszczyński <michal.leszczynski@xxxxxxx>]

----- 19 cze 2020 o 1:41, Michał Leszczyński michal.leszczynski@xxxxxxx 
napisał(a):

> Provide an interface for privileged domains to manage
> external IPT monitoring. Guest IPT state will be preserved
> across vmentry/vmexit using ipt_state structure.
> 
> Signed-off-by: Michal Leszczynski <michal.leszczynski@xxxxxxx>
> ---

...

> +struct xen_hvm_vmtrace_op {
> +    /* IN variable */
> +    uint32_t version;   /* HVMOP_VMTRACE_INTERFACE_VERSION */
> +    uint32_t cmd;
> +/* Enable/disable external vmtrace for given domain */
> +#define HVMOP_vmtrace_ipt_enable      1
> +#define HVMOP_vmtrace_ipt_disable     2
> +#define HVMOP_vmtrace_ipt_get_offset  3
> +    domid_t domain;
> +    uint32_t vcpu;
> +    uint64_t size;
> +
> +    /* OUT variable */
> +    uint64_t offset;
> +};
> +typedef struct xen_hvm_vmtrace_op xen_hvm_vmtrace_op_t;
> +DEFINE_XEN_GUEST_HANDLE(xen_hvm_vmtrace_op_t);
> +

I've forgotten about the padding thing here. This will be fixed in the next 
patch version, sorry.

ml