> From: Andy Lutomirski [mailto:l...@kernel.org]
> Sent: Tuesday, June 04, 2019 1:18 PM
>
> On Mon, Jun 3, 2019 at 1:39 PM Sean Christopherson
> wrote:
> >
> > On Mon, Jun 03, 2019 at 01:08:04PM -0700, Sean Christopherson wrote:
> > > On Sun, Jun 02, 2019 at 11:26:09PM -0700, Xing, Cedric wrote:
On Mon, Jun 3, 2019 at 1:39 PM Sean Christopherson
wrote:
>
> On Mon, Jun 03, 2019 at 01:08:04PM -0700, Sean Christopherson wrote:
> > On Sun, Jun 02, 2019 at 11:26:09PM -0700, Xing, Cedric wrote:
> > > > From: Christopherson, Sean J
> > > > Sent: Friday, May 31, 2019 4:32 PM
> > > >
> > > > +/**
On Fri, May 31, 2019 at 04:31:53PM -0700, Sean Christopherson wrote:
> ...to improve performance when building enclaves by reducing the number
> of user<->system transitions. Rather than provide arbitrary batching,
> e.g. with per-page SECINFO and mrmask, take advantage of the fact that
> any
On Mon, Jun 03, 2019 at 04:48:47PM -0700, Xing, Cedric wrote:
> > How about this for the intermediate patch:
> >
> > struct sgx_enclave_add_region {
> > __u64 addr;
> > __u64 src;
> > __u64 size;
> > __u64 secinfo;
> > __u16
On Mon, Jun 03, 2019 at 04:45:45PM -0700, Xing, Cedric wrote:
> > From: Christopherson, Sean J
> > Sent: Monday, June 03, 2019 1:40 PM
> >
> > On Mon, Jun 03, 2019 at 01:08:04PM -0700, Sean Christopherson wrote:
> > > On Sun, Jun 02, 2019 at 11:26:09PM -0700, Xing, Cedric wrote:
> > > > > From:
dy Shevchenko
> ; Svahn, Kai ;
> Borislav Petkov ; Josh Triplett ;
> Huang, Kai ; David Rientjes ;
> Roberts, William C ; Tricca, Philip B
>
> Subject: Re: [RFC PATCH 3/9] x86/sgx: Allow userspace to add multiple
> pages in single ioctl()
>
> On Mon, Jun 03, 2019 at 01:14
> From: Christopherson, Sean J
> Sent: Monday, June 03, 2019 1:40 PM
>
> On Mon, Jun 03, 2019 at 01:08:04PM -0700, Sean Christopherson wrote:
> > On Sun, Jun 02, 2019 at 11:26:09PM -0700, Xing, Cedric wrote:
> > > > From: Christopherson, Sean J
> > > > Sent: Friday, May 31, 2019 4:32 PM
> > > >
>
On 6/3/19 1:37 PM, Sean Christopherson wrote:
> Heh, fair enough. IIRC, a while back someone posted about having problems
> building a 512gb enclave in a 92mb EPC...
>
> How about this for the intermediate patch:
>
> struct sgx_enclave_add_region {
> __u64 addr;
>
On Mon, Jun 03, 2019 at 01:08:04PM -0700, Sean Christopherson wrote:
> On Sun, Jun 02, 2019 at 11:26:09PM -0700, Xing, Cedric wrote:
> > > From: Christopherson, Sean J
> > > Sent: Friday, May 31, 2019 4:32 PM
> > >
> > > +/**
> > > + * sgx_ioc_enclave_add_pages - handler for
On Mon, Jun 03, 2019 at 01:14:45PM -0700, Dave Hansen wrote:
> On 5/31/19 4:31 PM, Sean Christopherson wrote:
> > -struct sgx_enclave_add_page {
> > +struct sgx_enclave_add_pages {
> > __u64 addr;
> > __u64 src;
> > __u64 secinfo;
> > + __u32 nr_pages;
> > __u16 mrmask;
On 5/31/19 4:31 PM, Sean Christopherson wrote:
> -struct sgx_enclave_add_page {
> +struct sgx_enclave_add_pages {
> __u64 addr;
> __u64 src;
> __u64 secinfo;
> + __u32 nr_pages;
> __u16 mrmask;
> } __attribute__((__packed__));
IMNHO this follows a user
On Sun, Jun 02, 2019 at 11:26:09PM -0700, Xing, Cedric wrote:
> > From: Christopherson, Sean J
> > Sent: Friday, May 31, 2019 4:32 PM
> >
> > +/**
> > + * sgx_ioc_enclave_add_pages - handler for %SGX_IOC_ENCLAVE_ADD_PAGES
> > + *
> > + * @filep: open file to /dev/sgx
> > + * @cmd: the command
> From: Christopherson, Sean J
> Sent: Friday, May 31, 2019 4:32 PM
>
> +/**
> + * sgx_ioc_enclave_add_pages - handler for %SGX_IOC_ENCLAVE_ADD_PAGES
> + *
> + * @filep: open file to /dev/sgx
> + * @cmd: the command value
> + * @arg: pointer to an _enclave_add_page instance
> + *
> + *
...to improve performance when building enclaves by reducing the number
of user<->system transitions. Rather than provide arbitrary batching,
e.g. with per-page SECINFO and mrmask, take advantage of the fact that
any sane enclave will have large swaths of pages with identical
properties, e.g.
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