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, ning.sun@intel.com,
kumar.n.dwarakanath@intel.com, linux-crypto@vger.kernel.org,
linux-kernel@vger.kernel.org, chang.seok.bae@intel.com
Subject: [RFC PATCH 3/8] x86/msr-index: Add MSRs for Key Locker internal key
Date: Wed, 16 Dec 2020 09:41:41 -0800 [thread overview]
Message-ID: <20201216174146.10446-4-chang.seok.bae@intel.com> (raw)
In-Reply-To: <20201216174146.10446-1-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 972a34d93505..c0b9157806f7 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -922,4 +922,10 @@
#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:[~2020-12-16 17:47 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-16 17:41 [RFC PATCH 0/8] x86: Support Intel Key Locker Chang S. Bae
2020-12-16 17:41 ` [RFC PATCH 1/8] x86/cpufeature: Enumerate Key Locker feature Chang S. Bae
2020-12-16 17:41 ` [RFC PATCH 2/8] x86/cpu: Load Key Locker internal key at boot-time Chang S. Bae
2020-12-16 17:41 ` Chang S. Bae [this message]
2020-12-16 17:41 ` [RFC PATCH 4/8] x86/power: Restore Key Locker internal key from the ACPI S3/4 sleep states Chang S. Bae
2020-12-17 19:10 ` Eric Biggers
2020-12-18 1:00 ` Bae, Chang Seok
2021-01-28 10:34 ` Rafael J. Wysocki
2021-01-28 16:10 ` Bae, Chang Seok
2020-12-16 17:41 ` [RFC PATCH 5/8] x86/cpu: Add a config option and a chicken bit for Key Locker Chang S. Bae
2020-12-16 17:41 ` [RFC PATCH 6/8] selftests/x86: Test Key Locker internal key maintenance Chang S. Bae
2020-12-18 9:59 ` Peter Zijlstra
2020-12-18 10:43 ` Bae, Chang Seok
2020-12-16 17:41 ` [RFC PATCH 7/8] crypto: x86/aes-kl - Support AES algorithm using Key Locker instructions Chang S. Bae
2020-12-17 10:16 ` Ard Biesheuvel
2021-05-14 20:36 ` Bae, Chang Seok
2020-12-17 20:54 ` Andy Lutomirski
2021-05-14 20:48 ` Bae, Chang Seok
2020-12-17 20:58 ` [NEEDS-REVIEW] " Dave Hansen
2020-12-18 9:56 ` Peter Zijlstra
2020-12-18 10:11 ` Peter Zijlstra
2020-12-18 10:34 ` Bae, Chang Seok
2020-12-18 11:00 ` Borislav Petkov
2020-12-18 14:33 ` Peter Zijlstra
2020-12-16 17:41 ` [RFC PATCH 8/8] x86/cpu: Support the hardware randomization option for Key Locker internal key Chang S. Bae
2020-12-17 19:10 ` [RFC PATCH 0/8] x86: Support Intel Key Locker Eric Biggers
2020-12-17 20:07 ` Dan Williams
2020-12-18 1:08 ` Bae, Chang Seok
2020-12-19 18:59 ` Andy Lutomirski
2020-12-22 19:03 ` Bae, Chang Seok
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