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Message-ID: <bdfca03d-66e7-44b4-0c79-d0558437e432@suse.com>
Date: Wed, 18 May 2022 08:51:23 +0200
From: Juergen Gross <jgross@...e.com>
To: Josh Poimboeuf <jpoimboe@...nel.org>,
Maximilian Heyne <mheyne@...zon.de>
Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>,
Stefano Stabellini <sstabellini@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
"H. Peter Anvin" <hpa@...or.com>, xen-devel@...ts.xenproject.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: xen: remove STACK_FRAME_NON_STANDARD from xen_cpuid
On 17.05.22 18:42, Josh Poimboeuf wrote:
> On Tue, May 17, 2022 at 04:24:25PM +0000, Maximilian Heyne wrote:
>> Since commit 4d65adfcd119 ("x86: xen: insn: Decode Xen and KVM
>> emulate-prefix signature"), objtool is able to correctly parse the
>> prefixed instruction in xen_cpuid and emit correct orc unwind
>> information. Hence, marking the function as STACKFRAME_NON_STANDARD is
>> no longer needed.
>>
>> This commit is basically a revert of commit 983bb6d254c7 ("x86/xen: Mark
>> xen_cpuid() stack frame as non-standard").
>>
>> Signed-off-by: Maximilian Heyne <mheyne@...zon.de>
>> CC: Josh Poimboeuf <jpoimboe@...nel.org>
>>
>> cr: https://code.amazon.com/reviews/CR-69645080
> ^^^^^
>
> This looks like an internal amazon link and should be removed.
> Otherwise, looks good to me.
Can be done while committing.
Reviewed-by: Juergen Gross <jgross@...e.com>
Juergen
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