From: Jan Beulich <jbeulich@suse.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: "Roger Pau Monné" <roger.pau@citrix.com>, "Wei Liu" <wl@xen.org>,
Xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [PATCH 3/8] x86/boot: Fix data placement around __high_start()
Date: Thu, 2 Dec 2021 12:49:02 +0100 [thread overview]
Message-ID: <4615dde8-fe24-020d-0432-6935e9c0c9fa@suse.com> (raw)
In-Reply-To: <20211130100445.31156-4-andrew.cooper3@citrix.com>
On 30.11.2021 11:04, Andrew Cooper wrote:
> multiboot_ptr should be in __initdata - it is only used on the BSP path.
> Furthermore, the .align 8 then .long means that stack_start is misaligned.
>
> Move both into setup.c, which lets the compiler handle the details correctly,
> as well as providling proper debug information for them.
>
> Declare stack_start in setup.h and avoid extern-ing it locally in smpboot.c.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Nevertheless I'd like to state that defining a variable in C when all
its uses are in assembly seems a little odd to me.
Jan
next prev parent reply other threads:[~2021-12-02 11:49 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-30 10:04 [PATCH 0/8] x86: Support for __ro_after_init Andrew Cooper
2021-11-30 10:04 ` [PATCH 1/8] x86/boot: Drop incorrect mapping at l2_xenmap[0] Andrew Cooper
2021-11-30 10:33 ` Jan Beulich
2021-11-30 11:14 ` Andrew Cooper
2021-11-30 11:22 ` Jan Beulich
2021-11-30 12:39 ` Andrew Cooper
2021-11-30 10:04 ` [PATCH 2/8] x86/boot: Better describe the pagetable relocation loops Andrew Cooper
2021-12-02 11:43 ` Jan Beulich
2021-11-30 10:04 ` [PATCH 3/8] x86/boot: Fix data placement around __high_start() Andrew Cooper
2021-12-02 11:49 ` Jan Beulich [this message]
2021-12-02 14:06 ` Andrew Cooper
2021-11-30 10:04 ` [PATCH 4/8] x86/mm: Drop bogus cacheability logic in update_xen_mappings() Andrew Cooper
2021-11-30 13:11 ` Andrew Cooper
2021-11-30 14:56 ` Andrew Cooper
2021-11-30 10:04 ` [PATCH 5/8] x86/boot: Drop xen_virt_end Andrew Cooper
2021-12-02 11:56 ` Jan Beulich
2021-12-02 14:07 ` Andrew Cooper
2021-11-30 10:04 ` [PATCH 6/8] x86/boot: Adjust .text/.rodata/etc permissions in one place Andrew Cooper
2021-12-02 12:15 ` Jan Beulich
2021-11-30 10:04 ` [PATCH 7/8] x86/boot: Support __ro_after_init Andrew Cooper
2021-12-02 13:10 ` Jan Beulich
2021-11-30 10:04 ` [PATCH RFC 8/8] x86/boot: Check that permission restrictions have taken effect Andrew Cooper
2021-12-02 13:33 ` Jan Beulich
2021-12-06 18:12 ` Andrew Cooper
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