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svm/sev: Register SEV and SEV-ES ASIDs to the misc controller

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Secure Encrypted Virtualization (SEV) and Secure Encrypted
Virtualization - Encrypted State (SEV-ES) ASIDs are used to encrypt KVMs
on AMD platform. These ASIDs are available in the limited quantities on
a host.

Register their capacity and usage to the misc controller for tracking
via cgroups.

Signed-off-by: Vipin Sharma <vipinsh@google.com>
Reviewed-by: David Rientjes <rientjes@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Vipin Sharma
2021-03-29 21:42:06 -07:00
committed by Tejun Heo
parent 25259fc914
commit 7aef27f0b2
4 changed files with 73 additions and 10 deletions
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6
include/linux/misc_cgroup.h
View File

@@ -12,6 +12,12 @@
* Types of misc cgroup entries supported by the host.
*/
enum misc_res_type {
#ifdef CONFIG_KVM_AMD_SEV
/* AMD SEV ASIDs resource */
MISC_CG_RES_SEV,
/* AMD SEV-ES ASIDs resource */
MISC_CG_RES_SEV_ES,
#endif
MISC_CG_RES_TYPES
};