linux-kernel - [PATCH 24/26] cgroup/misc: Add SGX EPC resource type

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Date:   Fri, 11 Nov 2022 10:35:29 -0800
From:   Kristen Carlson Accardi <kristen@...ux.intel.com>
To:     jarkko@...nel.org, dave.hansen@...ux.kernel.org, tj@...nel.org,
        linux-kernel@...r.kernel.org, linux-sgx@...r.kernel.org,
        cgroups@...r.kernel.org, Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>
Cc:     zhiquan1.li@...el.com,
        Kristen Carlson Accardi <kristen@...ux.intel.com>
Subject: [PATCH 24/26] cgroup/misc: Add SGX EPC resource type

Allow SGX EPC memory to be a valid resource type for the misc
controller.

Signed-off-by: Kristen Carlson Accardi <kristen@...ux.intel.com>
---
 include/linux/misc_cgroup.h | 4 ++++
 kernel/cgroup/misc.c        | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/include/linux/misc_cgroup.h b/include/linux/misc_cgroup.h
index cee848205715..aeaf4acf22af 100644
--- a/include/linux/misc_cgroup.h
+++ b/include/linux/misc_cgroup.h
@@ -17,6 +17,10 @@ enum misc_res_type {
 	MISC_CG_RES_SEV,
 	/* AMD SEV-ES ASIDs resource */
 	MISC_CG_RES_SEV_ES,
+#endif
+#ifdef CONFIG_CGROUP_SGX_EPC
+	/* SGX EPC memory resource */
+	MISC_CG_RES_SGX_EPC,
 #endif
 	MISC_CG_RES_TYPES
 };
diff --git a/kernel/cgroup/misc.c b/kernel/cgroup/misc.c
index 642879ad136f..e73a034adca3 100644
--- a/kernel/cgroup/misc.c
+++ b/kernel/cgroup/misc.c
@@ -25,6 +25,10 @@ static const char *const misc_res_name[] = {
 	/* AMD SEV-ES ASIDs resource */
 	"sev_es",
 #endif
+#ifdef CONFIG_CGROUP_SGX_EPC
+	/* Intel SGX EPC memory bytes */
+	"sgx_epc",
+#endif
 };
 
 /* Root misc cgroup */
-- 
2.37.3