mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org
Cc: Juergen Gross <jgross@suse.com>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Josh Poimboeuf <jpoimboe@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	xen-devel@lists.xenproject.org
Subject: [PATCH v3 16/21] x86/xen: Drop xen_cpu_ops
Date: Mon,  6 Oct 2025 09:46:01 +0200	[thread overview]
Message-ID: <20251006074606.1266-17-jgross@suse.com> (raw)
In-Reply-To: <20251006074606.1266-1-jgross@suse.com>

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 <jgross@suse.com>
---
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 4806cc28d7ca..65df3a0d9cf3 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1212,54 +1212,6 @@ static const struct pv_info xen_info __initconst = {
 	.name = "Xen",
 };
 
-static const typeof(pv_ops) xen_cpu_ops __initconst = {
-	.cpu = {
-		.cpuid = xen_cpuid,
-
-		.set_debugreg = xen_set_debugreg,
-		.get_debugreg = xen_get_debugreg,
-
-		.read_cr0 = xen_read_cr0,
-		.write_cr0 = xen_write_cr0,
-
-		.write_cr4 = xen_write_cr4,
-
-		.read_msr = xen_read_msr,
-		.write_msr = xen_write_msr,
-
-		.read_msr_safe = xen_read_msr_safe,
-		.write_msr_safe = xen_write_msr_safe,
-
-		.read_pmc = xen_read_pmc,
-
-		.load_tr_desc = paravirt_nop,
-		.set_ldt = xen_set_ldt,
-		.load_gdt = xen_load_gdt,
-		.load_idt = xen_load_idt,
-		.load_tls = xen_load_tls,
-		.load_gs_index = xen_load_gs_index,
-
-		.alloc_ldt = xen_alloc_ldt,
-		.free_ldt = xen_free_ldt,
-
-		.store_tr = xen_store_tr,
-
-		.write_ldt_entry = xen_write_ldt_entry,
-		.write_gdt_entry = xen_write_gdt_entry,
-		.write_idt_entry = xen_write_idt_entry,
-		.load_sp0 = xen_load_sp0,
-
-#ifdef CONFIG_X86_IOPL_IOPERM
-		.invalidate_io_bitmap = xen_invalidate_io_bitmap,
-		.update_io_bitmap = xen_update_io_bitmap,
-#endif
-		.io_delay = xen_io_delay,
-
-		.start_context_switch = xen_start_context_switch,
-		.end_context_switch = 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(struct start_info *si)
 
 	/* Install Xen paravirt ops */
 	pv_info = xen_info;
-	pv_ops.cpu = xen_cpu_ops.cpu;
+
+	pv_ops.cpu.cpuid = xen_cpuid;
+	pv_ops.cpu.set_debugreg = xen_set_debugreg;
+	pv_ops.cpu.get_debugreg = xen_get_debugreg;
+	pv_ops.cpu.read_cr0 = xen_read_cr0;
+	pv_ops.cpu.write_cr0 = xen_write_cr0;
+	pv_ops.cpu.write_cr4 = xen_write_cr4;
+	pv_ops.cpu.read_msr = xen_read_msr;
+	pv_ops.cpu.write_msr = xen_write_msr;
+	pv_ops.cpu.read_msr_safe = xen_read_msr_safe;
+	pv_ops.cpu.write_msr_safe = xen_write_msr_safe;
+	pv_ops.cpu.read_pmc = xen_read_pmc;
+	pv_ops.cpu.load_tr_desc = paravirt_nop;
+	pv_ops.cpu.set_ldt = xen_set_ldt;
+	pv_ops.cpu.load_gdt = xen_load_gdt;
+	pv_ops.cpu.load_idt = xen_load_idt;
+	pv_ops.cpu.load_tls = xen_load_tls;
+	pv_ops.cpu.load_gs_index = xen_load_gs_index;
+	pv_ops.cpu.alloc_ldt = xen_alloc_ldt;
+	pv_ops.cpu.free_ldt = xen_free_ldt;
+	pv_ops.cpu.store_tr = xen_store_tr;
+	pv_ops.cpu.write_ldt_entry = xen_write_ldt_entry;
+	pv_ops.cpu.write_gdt_entry = xen_write_gdt_entry;
+	pv_ops.cpu.write_idt_entry = xen_write_idt_entry;
+	pv_ops.cpu.load_sp0 = xen_load_sp0;
+#ifdef CONFIG_X86_IOPL_IOPERM
+	pv_ops.cpu.invalidate_io_bitmap = xen_invalidate_io_bitmap;
+	pv_ops.cpu.update_io_bitmap = xen_update_io_bitmap;
+#endif
+	pv_ops.cpu.io_delay = xen_io_delay;
+	pv_ops.cpu.start_context_switch = xen_start_context_switch;
+	pv_ops.cpu.end_context_switch = xen_end_context_switch;
+
 	xen_init_irq_ops();
 
 	/*
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index d66eb37ff294..3d8a5ffb0fee 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[] = {
 		"pv_ops",
-		"xen_cpu_ops",
 		"xen_mmu_ops",
 		NULL,
 	};
-- 
2.51.0


  parent reply	other threads:[~2025-10-06  7:47 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-06  7:45 [PATCH v3 00/21] paravirt: cleanup and reorg Juergen Gross
2025-10-06  7:45 ` [PATCH v3 01/21] x86/paravirt: Remove not needed includes of paravirt.h Juergen Gross
2025-11-24 13:38   ` Borislav Petkov
2025-11-24 14:26     ` Borislav Petkov
2025-10-06  7:45 ` [PATCH v3 02/21] x86/paravirt: Remove some unneeded struct declarations Juergen Gross
2025-10-23 12:14   ` Borislav Petkov
2025-10-06  7:45 ` [PATCH v3 03/21] x86/paravirt: Remove PARAVIRT_DEBUG config option Juergen Gross
2025-10-06  7:45 ` [PATCH v3 04/21] x86/paravirt: Move thunk macros to paravirt_types.h Juergen Gross
2025-10-06  7:45 ` [PATCH v3 05/21] paravirt: Remove asm/paravirt_api_clock.h Juergen Gross
2025-10-15 16:02   ` Shrikanth Hegde
2025-10-06  7:45 ` [PATCH v3 06/21] sched: Move clock related paravirt code to kernel/sched Juergen Gross
2026-01-07 22:48   ` Alexey Makhalov
2025-10-06  7:45 ` [PATCH v3 07/21] arm/paravirt: Use common code for paravirt_steal_clock() Juergen Gross
2025-10-06  7:45 ` [PATCH v3 08/21] arm64/paravirt: " Juergen Gross
2025-10-06  7:45 ` [PATCH v3 09/21] loongarch/paravirt: " Juergen Gross
2025-11-24  9:52   ` Bibo Mao
2025-10-06  7:45 ` [PATCH v3 10/21] riscv/paravirt: " Juergen Gross
2025-10-06  7:45 ` [PATCH v3 11/21] x86/paravirt: " Juergen Gross
2025-10-06  7:45 ` [PATCH v3 12/21] x86/paravirt: Move paravirt_sched_clock() related code into tsc.c Juergen Gross
2025-10-06  7:45 ` [PATCH v3 13/21] x86/paravirt: Introduce new paravirt-base.h header Juergen Gross
2025-10-06  7:45 ` [PATCH v3 14/21] x86/paravirt: Move pv_native_*() prototypes to paravirt.c Juergen Gross
2025-10-06  7:46 ` [PATCH v3 15/21] x86/xen: Drop xen_irq_ops Juergen Gross
2025-10-06 18:55   ` Peter Zijlstra
2025-10-07  7:47     ` Jürgen Groß
2025-10-07 10:21       ` Peter Zijlstra
2025-10-07 10:29         ` Jürgen Groß
2025-10-06  7:46 ` Juergen Gross [this message]
2025-10-06  7:46 ` [PATCH v3 17/21] x86/xen: Drop xen_mmu_ops Juergen Gross
2025-10-06  7:46 ` [PATCH v3 18/21] objtool: Allow multiple pv_ops arrays Juergen Gross
2025-10-06  7:46 ` [PATCH v3 19/21] x86/paravirt: Allow pv-calls outside paravirt.h Juergen Gross
2025-10-06  7:46 ` [PATCH v3 20/21] x86/paravirt: Specify pv_ops array in paravirt macros Juergen Gross
2025-10-06  7:46 ` [PATCH v3 21/21] x86/pvlocks: Move paravirt spinlock functions into own header Juergen Gross
2025-10-15  8:53   ` kernel test robot
2025-11-24  9:42 ` [PATCH v3 00/21] paravirt: cleanup and reorg Juergen Gross
2026-02-20  4:10 ` patchwork-bot+linux-riscv

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20251006074606.1266-17-jgross@suse.com \
    --to=jgross@suse.com \
    --cc=boris.ostrovsky@oracle.com \
    --cc=bp@alien8.de \
    --cc=dave.hansen@linux.intel.com \
    --cc=hpa@zytor.com \
    --cc=jpoimboe@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@redhat.com \
    --cc=peterz@infradead.org \
    --cc=tglx@linutronix.de \
    --cc=x86@kernel.org \
    --cc=xen-devel@lists.xenproject.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®