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Re: [PATCH] x86: xen: remove STACK_FRAME_NON_STANDARD from xen_cpuid
- To: Maximilian Heyne <mheyne@xxxxxxxxx>
- From: Juergen Gross <jgross@xxxxxxxx>
- Date: Sun, 22 May 2022 13:08:00 +0200
- Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- Delivery-date: Sun, 22 May 2022 11:08:05 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 17.05.22 18:24, 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@xxxxxxxxx>
CC: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Pushed to xen/tip.git for-linus-5.19
Juergen
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