Re: [RFC PATCH 02/20] x86/sgx: Store EPC page owner as a 'void *' to handle multiple users

Jarkko Sakkinen
2022-09-23T12:49:20Z

On Thu, Sep 22, 2022 at 10:10:39AM -0700, Kristen Carlson Accardi wrote:
> From: Sean Christopherson <sean.j.christopherson-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
>
> A future patch will use the owner field for either a pointer to
> a struct sgx_encl, or a struct sgx_encl_page.
>
> Signed-off-by: Sean Christopherson <sean.j.christopherson-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Signed-off-by: Kristen Carlson Accardi <kristen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> Cc: Sean Christopherson <seanjc-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
> ---
> arch/x86/kernel/cpu/sgx/sgx.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kernel/cpu/sgx/sgx.h b/arch/x86/kernel/cpu/sgx/sgx.h
> index 0f2020653fba..5a7e858a8f98 100644
> --- a/arch/x86/kernel/cpu/sgx/sgx.h
> +++ b/arch/x86/kernel/cpu/sgx/sgx.h
> @@ -33,7 +33,7 @@ struct sgx_epc_page {
> unsigned int section;
> u16 flags;
> u16 poison;
> - struct sgx_encl_page *owner;
> + void *owner;
> struct list_head list;
> };
>
> --
> 2.37.3
>

Conflicts with https://lore.kernel.org/linux-sgx/20220920063948.3556917-1-zhiquan1.li-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org/T/#m5c911085eb350df564db2c18e344ce036e269749

BR, Jarkko