From: Jan Beulich <jbeulich@suse.com>
To: Juergen Gross <jgross@suse.com>
Cc: Wei Liu <wl@xen.org>, Anthony PERARD <anthony.perard@citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
George Dunlap <george.dunlap@citrix.com>,
Julien Grall <julien@xen.org>,
Stefano Stabellini <sstabellini@kernel.org>,
Arnd Bergmann <arnd@arndb.de>,
xen-devel@lists.xenproject.org
Subject: Re: [PATCH 1/2] xen: make include/xen/unaligned.h usable on all architectures
Date: Tue, 12 Dec 2023 17:47:27 +0100 [thread overview]
Message-ID: <00f77f61-9905-48dd-ba26-5a68769eb919@suse.com> (raw)
In-Reply-To: <20231212162702.26360-2-jgross@suse.com>
On 12.12.2023 17:27, Juergen Gross wrote:
> Instead of defining get_unaligned() and put_unaligned() in a way that
> is only supporting architectures allowing unaligned accesses, use the
> same approach as the Linux kernel and let the compiler do the
> decision how to generate the code for probably unaligned data accesses.
>
> Update include/xen/unaligned.h from include/asm-generic/unaligned.h of
> the Linux kernel.
>
> The generated code has been checked to be the same on x86.
>
> Modify the Linux variant to not use underscore prefixed identifiers,
> avoid unneeded parentheses and drop the 24-bit accessors.
>
> Add the definition of __packed to xg_dom_decompress_unsafe_zstd.c in
> libxenguest as it is using a cruel hack to reuse the hypervisor's
> decompressing code for stubdom.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Origin: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 803f4e1eab7a
> Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
next prev parent reply other threads:[~2023-12-12 16:48 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-12 16:27 [PATCH 0/2] xen: have a more generic unaligned.h header (take 2) Juergen Gross
2023-12-12 16:27 ` [PATCH 1/2] xen: make include/xen/unaligned.h usable on all architectures Juergen Gross
2023-12-12 16:47 ` Jan Beulich [this message]
2023-12-12 16:27 ` [PATCH 2/2] xen: remove asm/unaligned.h Juergen Gross
2023-12-21 9:37 ` [PATCH 0/2] xen: have a more generic unaligned.h header (take 2) Juergen Gross
2023-12-21 9:38 ` Andrew Cooper
-- strict thread matches above, loose matches on Subject: below --
2023-12-05 10:07 [PATCH 0/2] xen: have a more generic unaligned.h header Juergen Gross
2023-12-05 10:07 ` [PATCH 1/2] xen: make include/xen/unaligned.h usable on all architectures Juergen Gross
2023-12-05 11:53 ` Julien Grall
2023-12-05 12:39 ` Juergen Gross
2023-12-05 13:31 ` Julien Grall
2023-12-05 13:41 ` Juergen Gross
2023-12-05 13:46 ` Julien Grall
2023-12-05 13:59 ` Jan Beulich
2023-12-05 14:01 ` Julien Grall
2023-12-05 14:10 ` Arnd Bergmann
2023-12-05 14:19 ` Julien Grall
2023-12-05 14:37 ` Arnd Bergmann
2023-12-05 16:29 ` Julien Grall
2023-12-05 16:31 ` Juergen Gross
2023-12-05 14:11 ` Jan Beulich
2023-12-05 14:16 ` Juergen Gross
2023-12-05 13:55 ` Jan Beulich
2023-12-05 14:11 ` Juergen Gross
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