Re: [Xen-devel] [PATCH v3 1/2] x86/mem_event: Deliver gla fault EPT violation information

[Tamas Lengyel <tamas.lengyel@xxxxxxxxxxxx>]

On Fri, Aug 8, 2014 at 10:48 AM, Tamas Lengyel <tamas.lengyel@xxxxxxxxxxxx> wrote:

On Fri, Aug 8, 2014 at 9:00 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:

>>> On 08.08.14 at 01:12, <tamas.lengyel@xxxxxxxxxxxx> wrote:
> --- a/xen/arch/x86/hvm/hvm.c
> +++ b/xen/arch/x86/hvm/hvm.c
> @@ -2725,6 +2725,8 @@ void hvm_inject_page_fault(int errcode, unsigned long cr2)
>  int hvm_hap_nested_page_fault(paddr_t gpa,
>                                bool_t gla_valid,
>                                unsigned long gla,
> +                              bool_t fault_in_gpt,
> +                              bool_t fault_gla,
>                                bool_t access_r,
>                                bool_t access_w,
>                                bool_t access_x)

Afaic it is out of question to have a function with _six_ boolean
parameters. This needs to be consolidated into a single flags field. I
have actually done that already, in a patch serving a different
purpose (see attached), as discussed recently on this list. I would
very much appreciate if you either re-based yours on top of that or
modified it along those lines.

Certainly. I'll split your consolidation part into its own patch and rebase on that.

Should we consolidate p2m_mem_access_check's inputs into a bitmap as well?

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