From: Borislav Petkov <bp@alien8.de>
To: Juergen Gross <jgross@suse.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
linux-hyperv@vger.kernel.org,
virtualization@lists.linux-foundation.org,
Arnd Bergmann <arnd@arndb.de>, Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.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>,
Andy Lutomirski <luto@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Christoph Hellwig <hch@infradead.org>,
Oleksandr Tyshchenko <olekstysh@gmail.com>
Subject: Re: [PATCH 1/2] kernel: add platform_has() infrastructure
Date: Tue, 26 Apr 2022 19:31:14 +0200 [thread overview]
Message-ID: <YmgsYvWQchxub8cW@zn.tnic> (raw)
In-Reply-To: <20220426134021.11210-2-jgross@suse.com>
On Tue, Apr 26, 2022 at 03:40:20PM +0200, Juergen Gross wrote:
> diff --git a/kernel/platform-feature.c b/kernel/platform-feature.c
> new file mode 100644
> index 000000000000..2d52f8442cd5
> --- /dev/null
> +++ b/kernel/platform-feature.c
> @@ -0,0 +1,7 @@
> +// SPDX-License-Identifier: GPL-2.0
> +
> +#include <linux/cache.h>
> +#include <linux/platform-feature.h>
> +
> +unsigned long __read_mostly platform_features[PLATFORM_FEAT_ARRAY_SZ];
Probably __ro_after_init.
> +EXPORT_SYMBOL_GPL(platform_features);
You probably should make that thing static and use only accessors to
modify it in case you wanna change the underlying data structure in the
future.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
WARNING: multiple messages have this Message-ID (diff)
From: Borislav Petkov <bp@alien8.de>
To: Juergen Gross <jgross@suse.com>
Cc: linux-hyperv@vger.kernel.org,
"Michael S. Tsirkin" <mst@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
virtualization@lists.linux-foundation.org,
"H. Peter Anvin" <hpa@zytor.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
Wei Liu <wei.liu@kernel.org>,
Stephen Hemminger <sthemmin@microsoft.com>,
Arnd Bergmann <arnd@arndb.de>,
x86@kernel.org, Dexuan Cui <decui@microsoft.com>,
Christoph Hellwig <hch@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org,
Oleksandr Tyshchenko <olekstysh@gmail.com>,
Sven Schnelle <svens@linux.ibm.com>
Subject: Re: [PATCH 1/2] kernel: add platform_has() infrastructure
Date: Tue, 26 Apr 2022 19:31:14 +0200 [thread overview]
Message-ID: <YmgsYvWQchxub8cW@zn.tnic> (raw)
In-Reply-To: <20220426134021.11210-2-jgross@suse.com>
On Tue, Apr 26, 2022 at 03:40:20PM +0200, Juergen Gross wrote:
> diff --git a/kernel/platform-feature.c b/kernel/platform-feature.c
> new file mode 100644
> index 000000000000..2d52f8442cd5
> --- /dev/null
> +++ b/kernel/platform-feature.c
> @@ -0,0 +1,7 @@
> +// SPDX-License-Identifier: GPL-2.0
> +
> +#include <linux/cache.h>
> +#include <linux/platform-feature.h>
> +
> +unsigned long __read_mostly platform_features[PLATFORM_FEAT_ARRAY_SZ];
Probably __ro_after_init.
> +EXPORT_SYMBOL_GPL(platform_features);
You probably should make that thing static and use only accessors to
modify it in case you wanna change the underlying data structure in the
future.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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next prev parent reply other threads:[~2022-04-26 17:31 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-26 13:40 [PATCH 0/2] kernel: add new infrastructure for platform_has() support Juergen Gross
2022-04-26 13:40 ` Juergen Gross via Virtualization
2022-04-26 13:40 ` [PATCH 1/2] kernel: add platform_has() infrastructure Juergen Gross
2022-04-26 13:40 ` Juergen Gross via Virtualization
2022-04-26 17:31 ` Borislav Petkov [this message]
2022-04-26 17:31 ` Borislav Petkov
2022-04-26 19:53 ` Heiko Carstens
2022-04-26 20:09 ` Borislav Petkov
2022-04-26 20:09 ` Borislav Petkov
2022-04-27 6:20 ` Juergen Gross
2022-04-27 6:20 ` Juergen Gross via Virtualization
2022-04-26 13:40 ` [PATCH 2/2] virtio: replace arch_has_restricted_virtio_memory_access() Juergen Gross
2022-04-26 13:40 ` Juergen Gross via Virtualization
2022-04-26 17:35 ` Borislav Petkov
2022-04-26 17:35 ` Borislav Petkov
2022-04-26 19:51 ` Heiko Carstens
2022-04-27 6:40 ` Juergen Gross
2022-04-27 6:40 ` Juergen Gross via Virtualization
2022-04-27 12:26 ` Borislav Petkov
2022-04-27 12:26 ` Borislav Petkov
2022-04-27 12:45 ` Juergen Gross
2022-04-27 12:45 ` Juergen Gross via Virtualization
2022-04-27 6:37 ` Juergen Gross
2022-04-27 6:37 ` Juergen Gross via Virtualization
2022-04-27 12:28 ` Borislav Petkov
2022-04-27 12:28 ` Borislav Petkov
2022-04-27 12:37 ` Juergen Gross
2022-04-27 12:37 ` Juergen Gross via Virtualization
2022-04-27 14:09 ` Tom Lendacky
2022-04-27 14:09 ` Tom Lendacky via Virtualization
2022-04-27 14:14 ` Juergen Gross
2022-04-27 14:14 ` Juergen Gross via Virtualization
2022-04-27 7:48 ` [PATCH 0/2] kernel: add new infrastructure for platform_has() support Oleksandr
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