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
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