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From: Tom Lendacky <thomas.lendacky@amd.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org,
	iommu@lists.linux-foundation.org, kvm@vger.kernel.org,
	linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org,
	linux-graphics-maintainer@vmware.com,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org,
	Andi Kleen <ak@linux.intel.com>,
	Tianyu Lan <Tianyu.Lan@microsoft.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Andy Lutomirski <luto@kernel.org>,
	Brijesh Singh <brijesh.singh@amd.com>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 02/11] x86/sev: Add an x86 version of prot_guest_has()
Date: Thu, 29 Jul 2021 09:24:34 -0500	[thread overview]
Message-ID: <9f371091-7f73-8f60-e537-166984c650c1@amd.com> (raw)
In-Reply-To: <YQFaM7nOhD2d6SUQ@infradead.org>

On 7/28/21 8:22 AM, Christoph Hellwig wrote:
> On Tue, Jul 27, 2021 at 05:26:05PM -0500, Tom Lendacky via iommu wrote:
>> Introduce an x86 version of the prot_guest_has() function. This will be
>> used in the more generic x86 code to replace vendor specific calls like
>> sev_active(), etc.
>>
>> While the name suggests this is intended mainly for guests, it will
>> also be used for host memory encryption checks in place of sme_active().
>>
>> The amd_prot_guest_has() function does not use EXPORT_SYMBOL_GPL for the
>> same reasons previously stated when changing sme_active(), sev_active and
> 
> None of that applies here as none of the callers get pulled into
> random macros.  The only case of that is sme_me_mask through
> sme_mask, but that's not something this series replaces as far as I can
> tell.

Ok, let me make sure of that and I'll change to EXPORT_SYMBOL_GPL if
that's the case.

Thanks,
Tom

> 

  reply	other threads:[~2021-07-29 14:24 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-27 22:26 [PATCH 00/11] Implement generic prot_guest_has() helper function Tom Lendacky
2021-07-27 22:26 ` [PATCH 01/11] mm: Introduce a function to check for virtualization protection features Tom Lendacky
2021-07-28 13:17   ` Christoph Hellwig
2021-07-28 16:28     ` Borislav Petkov
2021-08-02 10:34   ` Joerg Roedel
2021-08-11 14:53   ` Kuppuswamy, Sathyanarayanan
2021-08-11 15:39     ` Tom Lendacky
2021-07-27 22:26 ` [PATCH 02/11] x86/sev: Add an x86 version of prot_guest_has() Tom Lendacky
2021-07-28 13:22   ` Christoph Hellwig
2021-07-29 14:24     ` Tom Lendacky [this message]
2021-08-02 10:35   ` Joerg Roedel
2021-07-27 22:26 ` [PATCH 03/11] powerpc/pseries/svm: Add a powerpc " Tom Lendacky
2021-07-27 22:26 ` [PATCH 04/11] x86/sme: Replace occurrences of sme_active() with prot_guest_has() Tom Lendacky
2021-08-02 10:37   ` Joerg Roedel
2021-07-27 22:26 ` [PATCH 05/11] x86/sev: Replace occurrences of sev_active() " Tom Lendacky
2021-08-02 10:42   ` Joerg Roedel
2021-07-27 22:26 ` [PATCH 06/11] x86/sev: Replace occurrences of sev_es_active() " Tom Lendacky
2021-08-02 10:45   ` Joerg Roedel
2021-08-09 21:59     ` Tom Lendacky
2021-08-09 22:08       ` Kuppuswamy, Sathyanarayanan
2021-07-27 22:26 ` [PATCH 07/11] treewide: Replace the use of mem_encrypt_active() " Tom Lendacky
2021-07-30 22:34   ` Sean Christopherson
2021-08-09 21:55     ` Tom Lendacky
2021-08-02 12:42   ` Christophe Leroy
2021-08-09 22:04     ` Tom Lendacky
2021-08-10 18:45   ` Kuppuswamy, Sathyanarayanan
2021-08-10 19:48     ` Tom Lendacky
2021-08-10 20:09       ` Kuppuswamy, Sathyanarayanan
2021-08-11 12:19       ` Kirill A. Shutemov
2021-08-11 15:52         ` Tom Lendacky
2021-08-12 10:07           ` Kirill A. Shutemov
2021-08-13 17:08             ` Tom Lendacky
2021-08-13 20:17               ` Tom Lendacky
2021-07-27 22:26 ` [PATCH 08/11] mm: Remove the now unused mem_encrypt_active() function Tom Lendacky
2021-08-02 10:47   ` Joerg Roedel
2021-07-27 22:26 ` [PATCH 09/11] x86/sev: " Tom Lendacky
2021-08-02 10:46   ` Joerg Roedel
2021-07-27 22:26 ` [PATCH 10/11] powerpc/pseries/svm: " Tom Lendacky
2021-07-27 22:26 ` [PATCH 11/11] s390/mm: " Tom Lendacky
2021-07-27 22:37 ` [PATCH 00/11] Implement generic prot_guest_has() helper function Tom Lendacky
2021-07-28 11:50 ` Christian König
2021-08-09  1:41 ` Kuppuswamy, Sathyanarayanan
2021-08-09 22:16   ` Tom Lendacky

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