From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
dave.hansen@intel.com, luto@kernel.org, peterz@infradead.org
Cc: sathyanarayanan.kuppuswamy@linux.intel.com, aarcange@redhat.com,
ak@linux.intel.com, dan.j.williams@intel.com, david@redhat.com,
hpa@zytor.com, jmattson@google.com, seanjc@google.com,
thomas.lendacky@amd.com, brijesh.singh@amd.com, x86@kernel.org,
linux-kernel@vger.kernel.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
Tianyu Lan <Tianyu.Lan@microsoft.com>
Subject: [PATCH 1/4] x86/hyperv: Add missing ARCH_HAS_CC_PLATFORM dependency
Date: Tue, 22 Feb 2022 21:57:37 +0300 [thread overview]
Message-ID: <20220222185740.26228-2-kirill.shutemov@linux.intel.com> (raw)
In-Reply-To: <20220222185740.26228-1-kirill.shutemov@linux.intel.com>
On x86, cc_platform_has(CC_ATTR_GUEST_MEM_ENCRYPT) supposes to return
true for HyperV if isolation is supported. But it only does it if the
kernel is compiled with AMD_MEM_ENCRYPT enabled.
It happens due to missed ARCH_HAS_CC_PLATFORM dependency. Without
ARCH_HAS_CC_PLATFORM enabled, cc_platform_has() always returns false.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Tianyu Lan <Tianyu.Lan@microsoft.com>
---
drivers/hv/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
index 0747a8f1fcee..424d3f0751dc 100644
--- a/drivers/hv/Kconfig
+++ b/drivers/hv/Kconfig
@@ -8,6 +8,7 @@ config HYPERV
|| (ARM64 && !CPU_BIG_ENDIAN))
select PARAVIRT
select X86_HV_CALLBACK_VECTOR if X86
+ select ARCH_HAS_CC_PLATFORM if x86
select VMAP_PFN
help
Select this option to run Linux as a Hyper-V client operating
--
2.34.1
next prev parent reply other threads:[~2022-02-22 18:58 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-22 18:57 [PATCH 0/4] x86: Cleanup and extend computing computing API Kirill A. Shutemov
2022-02-22 18:57 ` Kirill A. Shutemov [this message]
2022-02-22 20:08 ` [PATCH 1/4] x86/hyperv: Add missing ARCH_HAS_CC_PLATFORM dependency Borislav Petkov
2022-02-23 7:04 ` Tianyu Lan
2022-02-23 10:41 ` Borislav Petkov
2022-02-23 10:43 ` Tianyu Lan
2022-02-23 10:56 ` Borislav Petkov
2022-02-23 11:02 ` Tianyu Lan
2022-02-23 11:47 ` Kirill A. Shutemov
2022-02-23 14:09 ` Tianyu Lan
2022-02-23 15:46 ` Kirill A. Shutemov
2022-02-22 18:57 ` [PATCH 2/4] x86: Rename cc_platform.c to arch/x86/coco/core.c Kirill A. Shutemov
2022-02-22 20:52 ` Borislav Petkov
2022-02-24 11:59 ` [tip: x86/cc] x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c} tip-bot2 for Kirill A. Shutemov
2022-02-22 18:57 ` [PATCH 3/4] x86/coco: Explicitly declare type of confidential computing platform Kirill A. Shutemov
2022-02-24 11:59 ` [tip: x86/cc] " tip-bot2 for Kirill A. Shutemov
2022-02-22 18:57 ` [PATCH 4/4] x86/coco: Add API to handle encryption mask Kirill A. Shutemov
2022-02-24 11:59 ` [tip: x86/cc] " tip-bot2 for Kirill A. Shutemov
2022-02-22 21:56 ` [PATCH 0/4] x86: Cleanup and extend computing computing API Tom Lendacky
2022-02-23 4:35 ` [PATCH] x86/mm/cpa: Generalize __set_memory_enc_pgtable() Brijesh Singh
2022-02-23 11:31 ` Borislav Petkov
2022-02-23 11:55 ` Kirill A. Shutemov
2022-02-23 12:13 ` Borislav Petkov
2022-02-23 12:25 ` Kirill A. Shutemov
2022-02-23 12:38 ` Borislav Petkov
2022-02-23 12:54 ` Kirill A. Shutemov
2022-02-23 14:33 ` Brijesh Singh
2022-02-24 11:59 ` [tip: x86/cc] " tip-bot2 for Brijesh Singh
2022-02-23 19:10 ` [PATCH 0/4] x86: Cleanup and extend computing computing API Borislav Petkov
2022-02-23 19:17 ` [PATCH 1/4] x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c} Borislav Petkov
2022-02-23 19:17 ` [PATCH 2/4] x86/coco: Explicitly declare type of confidential computing platform Borislav Petkov
2022-02-23 19:17 ` [PATCH 3/4] x86/coco: Add API to handle encryption mask Borislav Petkov
2022-02-23 19:17 ` [PATCH 4/4] x86/mm/cpa: Generalize __set_memory_enc_pgtable() Borislav Petkov
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