From nobody Thu Oct 2 12:02:52 2025 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0AAB432E72F for ; Wed, 17 Sep 2025 14:54:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758120845; cv=none; b=JFk8OeNM8Pee9pxBrOFbnP3D46giZr2lnTV6McHYuTh/J3NtNBjYxR6Dc+Z4CAa2lIByAJGnUs2/mdmr7sXZzOGzkWiQqWJz8oF3ckrpc7v3+zqqTEkb3kRTQgKt1muFnruH4VgCMby3pCjVqv9WkiQB8/NckRINoEiC3ZN8mO8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758120845; c=relaxed/simple; bh=2dSVmAT6pf6K/tKli03cHD9SNoWE8VVA05u0bvqnNDQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZlTXodmJkMtFuwmg+k5WJa0Ki+47HFWqUCsleE5N/DUPDEzti4me6wHTX8ubGGJNlVNfdgoBsuLoHAe1b4PXBOWimwZMWBrUrfHqya40dKzh1/j4AH3HgxOSh8Lad6jmsl3zxPDwzWPqprel4wbazvN8X7cUGZbpqwbsJIDgFg4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com; spf=pass smtp.mailfrom=suse.com; arc=none smtp.client-ip=195.135.223.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.com Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 5BF222073D; Wed, 17 Sep 2025 14:54:00 +0000 (UTC) Authentication-Results: smtp-out2.suse.de; none Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 009E11368D; Wed, 17 Sep 2025 14:53:59 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id Ng47OofLymh3EwAAD6G6ig (envelope-from ); Wed, 17 Sep 2025 14:53:59 +0000 From: Juergen Gross To: linux-kernel@vger.kernel.org, x86@kernel.org Cc: Juergen Gross , Boris Ostrovsky , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Josh Poimboeuf , Peter Zijlstra , xen-devel@lists.xenproject.org Subject: [PATCH v2 16/21] x86/xen: Drop xen_cpu_ops Date: Wed, 17 Sep 2025 16:52:15 +0200 Message-ID: <20250917145220.31064-17-jgross@suse.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250917145220.31064-1-jgross@suse.com> References: <20250917145220.31064-1-jgross@suse.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spam-Level: X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[]; R_RATELIMIT(0.00)[to_ip_from(RLkdkdrsxe9hqhhs5ask8616i6)] X-Rspamd-Queue-Id: 5BF222073D X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-Spam-Flag: NO X-Spam-Score: -4.00 Content-Type: text/plain; charset="utf-8" Instead of having a pre-filled array xen_cpu_ops for Xen PV paravirt functions, drop the array and assign each element individually. Signed-off-by: Juergen Gross --- V2: - new patch --- arch/x86/xen/enlighten_pv.c | 82 +++++++++++++++---------------------- tools/objtool/check.c | 1 - 2 files changed, 33 insertions(+), 50 deletions(-) diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index 26bbaf4b7330..45ce2be41628 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -1213,54 +1213,6 @@ static const struct pv_info xen_info __initconst =3D= { .name =3D "Xen", }; =20 -static const typeof(pv_ops) xen_cpu_ops __initconst =3D { - .cpu =3D { - .cpuid =3D xen_cpuid, - - .set_debugreg =3D xen_set_debugreg, - .get_debugreg =3D xen_get_debugreg, - - .read_cr0 =3D xen_read_cr0, - .write_cr0 =3D xen_write_cr0, - - .write_cr4 =3D xen_write_cr4, - - .read_msr =3D xen_read_msr, - .write_msr =3D xen_write_msr, - - .read_msr_safe =3D xen_read_msr_safe, - .write_msr_safe =3D xen_write_msr_safe, - - .read_pmc =3D xen_read_pmc, - - .load_tr_desc =3D paravirt_nop, - .set_ldt =3D xen_set_ldt, - .load_gdt =3D xen_load_gdt, - .load_idt =3D xen_load_idt, - .load_tls =3D xen_load_tls, - .load_gs_index =3D xen_load_gs_index, - - .alloc_ldt =3D xen_alloc_ldt, - .free_ldt =3D xen_free_ldt, - - .store_tr =3D xen_store_tr, - - .write_ldt_entry =3D xen_write_ldt_entry, - .write_gdt_entry =3D xen_write_gdt_entry, - .write_idt_entry =3D xen_write_idt_entry, - .load_sp0 =3D xen_load_sp0, - -#ifdef CONFIG_X86_IOPL_IOPERM - .invalidate_io_bitmap =3D xen_invalidate_io_bitmap, - .update_io_bitmap =3D xen_update_io_bitmap, -#endif - .io_delay =3D xen_io_delay, - - .start_context_switch =3D xen_start_context_switch, - .end_context_switch =3D xen_end_context_switch, - }, -}; - static void xen_restart(char *msg) { xen_reboot(SHUTDOWN_reboot); @@ -1411,7 +1363,39 @@ asmlinkage __visible void __init xen_start_kernel(st= ruct start_info *si) =20 /* Install Xen paravirt ops */ pv_info =3D xen_info; - pv_ops.cpu =3D xen_cpu_ops.cpu; + + pv_ops.cpu.cpuid =3D xen_cpuid; + pv_ops.cpu.set_debugreg =3D xen_set_debugreg; + pv_ops.cpu.get_debugreg =3D xen_get_debugreg; + pv_ops.cpu.read_cr0 =3D xen_read_cr0; + pv_ops.cpu.write_cr0 =3D xen_write_cr0; + pv_ops.cpu.write_cr4 =3D xen_write_cr4; + pv_ops.cpu.read_msr =3D xen_read_msr; + pv_ops.cpu.write_msr =3D xen_write_msr; + pv_ops.cpu.read_msr_safe =3D xen_read_msr_safe; + pv_ops.cpu.write_msr_safe =3D xen_write_msr_safe; + pv_ops.cpu.read_pmc =3D xen_read_pmc; + pv_ops.cpu.load_tr_desc =3D paravirt_nop; + pv_ops.cpu.set_ldt =3D xen_set_ldt; + pv_ops.cpu.load_gdt =3D xen_load_gdt; + pv_ops.cpu.load_idt =3D xen_load_idt; + pv_ops.cpu.load_tls =3D xen_load_tls; + pv_ops.cpu.load_gs_index =3D xen_load_gs_index; + pv_ops.cpu.alloc_ldt =3D xen_alloc_ldt; + pv_ops.cpu.free_ldt =3D xen_free_ldt; + pv_ops.cpu.store_tr =3D xen_store_tr; + pv_ops.cpu.write_ldt_entry =3D xen_write_ldt_entry; + pv_ops.cpu.write_gdt_entry =3D xen_write_gdt_entry; + pv_ops.cpu.write_idt_entry =3D xen_write_idt_entry; + pv_ops.cpu.load_sp0 =3D xen_load_sp0; +#ifdef CONFIG_X86_IOPL_IOPERM + pv_ops.cpu.invalidate_io_bitmap =3D xen_invalidate_io_bitmap; + pv_ops.cpu.update_io_bitmap =3D xen_update_io_bitmap; +#endif + pv_ops.cpu.io_delay =3D xen_io_delay; + pv_ops.cpu.start_context_switch =3D xen_start_context_switch; + pv_ops.cpu.end_context_switch =3D xen_end_context_switch; + xen_init_irq_ops(); =20 /* diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 14ae91cc246a..c2a3079fe5f8 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -592,7 +592,6 @@ static int init_pv_ops(struct objtool_file *file) { static const char *pv_ops_tables[] =3D { "pv_ops", - "xen_cpu_ops", "xen_mmu_ops", NULL, }; --=20 2.51.0