On Mon, 27 Nov 2023 00:01:56 +0800, Haitao Huang
wrote:
> > > > Then here we can have something like:
> > > >
> > > > void sgx_reclaim_pages(struct sgx_epc_cg *epc_cg)
> > > > {
> > > > struct sgx_epc_lru_list *lru = epc_cg ?
_cg->lru :
> > > >
On Mon, 20 Nov 2023 11:16:42 +0800, Huang, Kai wrote:
> >
>
> That's true. I was thinking no need to have them done in separate
calls.
> The caller has to check the return value for epc_cg instance first,
then
> check result of try_charge. But there is really only one caller,
>
> > >
> >
> > That's true. I was thinking no need to have them done in separate calls.
> > The caller has to check the return value for epc_cg instance first, then
> > check result of try_charge. But there is really only one caller,
> > sgx_alloc_epc_page() below, so I don't have strong
On Mon Oct 30, 2023 at 8:20 PM EET, Haitao Huang wrote:
> From: Kristen Carlson Accardi
>
> Implement support for cgroup control of SGX Enclave Page Cache (EPC)
> memory using the misc cgroup controller. EPC memory is independent
> from normal system memory, e.g. must be reserved at boot from RAM
> I should have sticked to the orignial comment added in code. Actually
> __sgx_alloc_epc_page() can fail if system runs out of EPC. That's the really
> reason
> for global reclaim. The free count enforcement is near the end of this method
> after should_reclaim() check.
Hi Haitao,
Sorry I have
On Mon, 06 Nov 2023 19:16:30 -0600, Haitao Huang
wrote:
On Mon, 06 Nov 2023 16:18:30 -0600, Huang, Kai
wrote:
> > +/**
> > + * sgx_epc_cgroup_try_charge() - hierarchically try to charge a
single
> > EPC page
> > + *
> > + * Returns EPC cgroup or NULL on success, -errno on failure.
>
On Mon, 06 Nov 2023 16:18:30 -0600, Huang, Kai wrote:
> > +/**
> > + * sgx_epc_cgroup_try_charge() - hierarchically try to charge a
single
> > EPC page
> > + *
> > + * Returns EPC cgroup or NULL on success, -errno on failure.
> > + */
> > +struct sgx_epc_cgroup
On Mon, 2023-10-30 at 11:20 -0700, Haitao Huang wrote:
> +static int __init sgx_epc_cgroup_init(void)
> +{
> + struct misc_cg *cg;
> +
> + if (!boot_cpu_has(X86_FEATURE_SGX))
> + return 0;
> +
> + cg = misc_cg_root();
> + BUG_ON(!cg);
> +
> + return
>
> > > +/**
> > > + * sgx_epc_cgroup_try_charge() - hierarchically try to charge a single
> > > EPC page
> > > + *
> > > + * Returns EPC cgroup or NULL on success, -errno on failure.
> > > + */
> > > +struct sgx_epc_cgroup *sgx_epc_cgroup_try_charge(void)
> > > +{
> > > + struct sgx_epc_cgroup
On Mon, 06 Nov 2023 06:09:45 -0600, Huang, Kai wrote:
On Mon, 2023-10-30 at 11:20 -0700, Haitao Huang wrote:
From: Kristen Carlson Accardi
Implement support for cgroup control of SGX Enclave Page Cache (EPC)
memory using the misc cgroup controller. EPC memory is independent
from normal
On Mon, 2023-10-30 at 11:20 -0700, Haitao Huang wrote:
> From: Kristen Carlson Accardi
>
> Implement support for cgroup control of SGX Enclave Page Cache (EPC)
> memory using the misc cgroup controller. EPC memory is independent
> from normal system memory, e.g. must be reserved at boot from RAM
From: Kristen Carlson Accardi
Implement support for cgroup control of SGX Enclave Page Cache (EPC)
memory using the misc cgroup controller. EPC memory is independent
from normal system memory, e.g. must be reserved at boot from RAM and
cannot be converted between EPC and normal memory while the
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