From: "Chang S. Bae" <chang.seok.bae@intel.com>
To: tglx@linutronix.de, mingo@kernel.org, bp@suse.de,
luto@kernel.org, x86@kernel.org, herbert@gondor.apana.org.au
Cc: dan.j.williams@intel.com, dave.hansen@intel.com,
ravi.v.shankar@intel.com, linux-crypto@vger.kernel.org,
linux-kernel@vger.kernel.org, chang.seok.bae@intel.com
Subject: [RFC PATCH v2 04/11] x86/msr-index: Add MSRs for Key Locker internal key
Date: Fri, 14 May 2021 13:15:01 -0700 [thread overview]
Message-ID: <20210514201508.27967-5-chang.seok.bae@intel.com> (raw)
In-Reply-To: <20210514201508.27967-1-chang.seok.bae@intel.com>
Key Locker internal key in a CPU state can be backed up in a platform
register. The backup can be also copied back to a CPU state. This mechanism
is useful to restore the key (after system sleep).
Add MSRs for the internal key backup, copy, and status check.
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/x86/include/asm/msr-index.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 742d89a00721..f8e78782c8f4 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -935,4 +935,10 @@
#define MSR_VM_IGNNE 0xc0010115
#define MSR_VM_HSAVE_PA 0xc0010117
+/* MSRs for Key Locker Internal (Wrapping) Key management */
+#define MSR_IA32_COPY_LOCAL_TO_PLATFORM 0x00000d91
+#define MSR_IA32_COPY_PLATFORM_TO_LOCAL 0x00000d92
+#define MSR_IA32_COPY_STATUS 0x00000990
+#define MSR_IA32_IWKEYBACKUP_STATUS 0x00000991
+
#endif /* _ASM_X86_MSR_INDEX_H */
--
2.17.1
next prev parent reply other threads:[~2021-05-14 20:20 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-14 20:14 [RFC PATCH v2 00/11] x86: Support Intel Key Locker Chang S. Bae
2021-05-14 20:14 ` [RFC PATCH v2 01/11] x86/cpufeature: Enumerate Key Locker feature Chang S. Bae
2021-05-14 20:14 ` [RFC PATCH v2 02/11] x86/insn: Add Key Locker instructions to the opcode map Chang S. Bae
2021-05-14 20:15 ` [RFC PATCH v2 03/11] x86/cpu: Load Key Locker internal key at boot-time Chang S. Bae
2021-05-14 20:15 ` Chang S. Bae [this message]
2021-05-14 20:15 ` [RFC PATCH v2 05/11] x86/power: Restore Key Locker internal key from the ACPI S3/4 sleep states Chang S. Bae
2021-05-24 14:21 ` Rafael J. Wysocki
2021-05-14 20:15 ` [RFC PATCH v2 06/11] x86/cpu: Add a config option and a chicken bit for Key Locker Chang S. Bae
2021-05-14 20:15 ` [RFC PATCH v2 07/11] selftests/x86: Test Key Locker internal key maintenance Chang S. Bae
2021-05-14 20:15 ` [RFC PATCH v2 08/11] crypto: x86/aes-ni - Improve error handling Chang S. Bae
2021-05-14 20:15 ` [RFC PATCH v2 09/11] crypto: x86/aes-ni - Refactor to prepare a new AES implementation Chang S. Bae
2021-05-14 20:15 ` [RFC PATCH v2 10/11] crypto: x86/aes-kl - Support AES algorithm using Key Locker instructions Chang S. Bae
2021-05-17 21:34 ` Eric Biggers
2021-05-17 22:20 ` Bae, Chang Seok
2021-05-17 23:33 ` Eric Biggers
2021-05-18 16:57 ` Andy Lutomirski
2021-05-14 20:15 ` [RFC PATCH v2 11/11] x86/cpu: Support the hardware randomization option for Key Locker internal key Chang S. Bae
2021-05-15 18:01 ` [RFC PATCH v2 00/11] x86: Support Intel Key Locker Andy Lutomirski
2021-05-17 18:21 ` Bae, Chang Seok
2021-05-17 18:45 ` Dan Williams
2021-05-17 22:20 ` Bae, Chang Seok
2021-05-17 20:15 ` Sean Christopherson
2021-05-18 17:10 ` Andy Lutomirski
2021-05-18 17:52 ` Sean Christopherson
2021-05-19 23:26 ` Andy Lutomirski
2021-05-19 23:34 ` Sean Christopherson
2021-05-20 0:00 ` Sean Christopherson
2021-12-06 21:48 ` Bae, Chang Seok
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210514201508.27967-5-chang.seok.bae@intel.com \
--to=chang.seok.bae@intel.com \
--cc=bp@suse.de \
--cc=dan.j.williams@intel.com \
--cc=dave.hansen@intel.com \
--cc=herbert@gondor.apana.org.au \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=mingo@kernel.org \
--cc=ravi.v.shankar@intel.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.