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From: "Chang S. Bae" <chang.seok.bae@intel.com>
To: tglx@linutronix.de, bp@suse.de, dave.hansen@linux.intel.com,
	mingo@kernel.org, luto@kernel.org, x86@kernel.org,
	herbert@gondor.apana.org.au
Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
	dan.j.williams@intel.com, charishma1.gairuboyina@intel.com,
	kumar.n.dwarakanath@intel.com,
	lalithambika.krishnakumar@intel.com, ravi.v.shankar@intel.com,
	chang.seok.bae@intel.com
Subject: [PATCH v3 06/15] x86/keylocker: Define Key Locker CPUID leaf
Date: Wed, 24 Nov 2021 12:06:51 -0800	[thread overview]
Message-ID: <20211124200700.15888-7-chang.seok.bae@intel.com> (raw)
In-Reply-To: <20211124200700.15888-1-chang.seok.bae@intel.com>

Define the feature-specific CPUID leaf and bits. Both Key Locker enabling
code in the x86 core and AES Key Locker code in the crypto library will
reference them.

Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
---
Changes from RFC v2:
* Separate out the code as a new patch.
---
 arch/x86/include/asm/keylocker.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/x86/include/asm/keylocker.h b/arch/x86/include/asm/keylocker.h
index df84c83228a1..e85dfb6c1524 100644
--- a/arch/x86/include/asm/keylocker.h
+++ b/arch/x86/include/asm/keylocker.h
@@ -5,6 +5,7 @@
 
 #ifndef __ASSEMBLY__
 
+#include <linux/bits.h>
 #include <asm/fpu/types.h>
 
 /**
@@ -21,5 +22,11 @@ struct iwkey {
 	struct reg_128_bit encryption_key[2];
 };
 
+#define KEYLOCKER_CPUID			0x019
+#define KEYLOCKER_CPUID_EAX_SUPERVISOR	BIT(0)
+#define KEYLOCKER_CPUID_EBX_AESKLE	BIT(0)
+#define KEYLOCKER_CPUID_EBX_WIDE	BIT(2)
+#define KEYLOCKER_CPUID_EBX_BACKUP	BIT(4)
+
 #endif /*__ASSEMBLY__ */
 #endif /* _ASM_KEYLOCKER_H */
-- 
2.17.1


  parent reply	other threads:[~2021-11-24 20:14 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-24 20:06 [PATCH v3 00/15] x86: Support Key Locker Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 01/15] Documentation/x86: Document " Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 02/15] x86/cpufeature: Enumerate Key Locker feature Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 03/15] x86/insn: Add Key Locker instructions to the opcode map Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 04/15] x86/asm: Add a wrapper function for the LOADIWKEY instruction Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 05/15] x86/msr-index: Add MSRs for Key Locker internal wrapping key Chang S. Bae
2021-11-24 20:06 ` Chang S. Bae [this message]
2021-11-24 20:06 ` [PATCH v3 07/15] x86/cpu/keylocker: Load an internal wrapping key at boot-time Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 08/15] x86/power/keylocker: Restore internal wrapping key from the ACPI S3/4 sleep states Chang S. Bae
2021-11-30  3:30   ` Eric Biggers
2021-11-30  6:31     ` [PATCH v3-fix " Chang S. Bae
2021-11-30  6:56     ` [PATCH v3 " Bae, Chang Seok
2021-11-24 20:06 ` [PATCH v3 09/15] x86/cpu: Add a configuration and command line option for Key Locker Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 10/15] crypto: x86/aes - Prepare for a new AES implementation Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 11/15] crypto: x86/aes-kl - Support AES algorithm using Key Locker instructions Chang S. Bae
2021-11-30  3:48   ` Eric Biggers
2021-11-30  6:57     ` Bae, Chang Seok
2021-11-30  7:03       ` Dan Williams
2021-12-06 22:14       ` Ard Biesheuvel
2021-12-06 22:59         ` Bae, Chang Seok
2021-12-02 14:21   ` Peter Zijlstra
2021-12-06 21:32     ` Bae, Chang Seok
2021-11-24 20:06 ` [PATCH v3 12/15] crypto: x86/aes-kl - Support ECB mode Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 13/15] crypto: x86/aes-kl - Support CBC mode Chang S. Bae
2021-11-24 20:06 ` [PATCH v3 14/15] crypto: x86/aes-kl - Support CTR mode Chang S. Bae
2021-11-24 20:07 ` [PATCH v3 15/15] crypto: x86/aes-kl - Support XTS mode Chang S. Bae
2021-11-30  3:27 ` [PATCH v3 00/15] x86: Support Key Locker Eric Biggers
2021-11-30  6:36   ` Bae, Chang Seok
2021-11-30  7:23     ` Eric Biggers
2021-11-30  7:34       ` Bae, Chang Seok

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