[PATCH v9 03/15] cgroup/misc: Add SGX EPC resource type

Haitao Huang
2024-02-05T21:06:42Z

From: Kristen Carlson Accardi <kristen@linux.intel.com>

Add SGX EPC memory, MISC_CG_RES_SGX_EPC, to be a valid resource type
for the misc controller.

Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Co-developed-by: Haitao Huang <haitao.huang@linux.intel.com>
Signed-off-by: Haitao Huang <haitao.huang@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
---
V6:
- Split the original patch into this and the preceding one (Kai)
---
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 541a5611c597..2f6cc3a0ad23 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 1f0d8e05b36c..e51d6a45007f 100644
--- a/kernel/cgroup/misc.c
+++ b/kernel/cgroup/misc.c
@@ -24,6 +24,10 @@ 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 */
--
2.25.1