qemu-kvm/kvm-target-i386-Remove-AccelCPUClass-cpu_class_init-need.patch

From 5be7728369a8f109a86b2d5aea89c6dc4014c559 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 18 Jul 2025 18:03:45 +0200
Subject: [PATCH 023/115] target/i386: Remove AccelCPUClass::cpu_class_init
 need
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RH-Author: Paolo Bonzini <pbonzini@redhat.com>
RH-MergeRequest: 391: TDX support, including attestation and device assignment
RH-Jira: RHEL-15710 RHEL-20798 RHEL-49728
RH-Acked-by: Yash Mankad <None>
RH-Acked-by: Peter Xu <peterx@redhat.com>
RH-Acked-by: David Hildenbrand <david@redhat.com>
RH-Commit: [23/115] a327127b0c6a96c8198420732006770480b18e69 (bonzini/rhel-qemu-kvm)

Expose x86_tcg_ops symbol, then directly set it as
CPUClass::tcg_ops in TYPE_X86_CPU's class_init(),
using CONFIG_TCG #ifdef'ry. No need for the
AccelCPUClass::cpu_class_init() handler anymore.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250405161320.76854-3-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit a522b04bb9cf67789116ad7a6165946d4b214bac)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Conflicts: missing one member of x86_tcg_ops
---
 target/i386/cpu.c         |  4 ++++
 target/i386/tcg/tcg-cpu.c | 14 +-------------
 target/i386/tcg/tcg-cpu.h |  4 ++++
 3 files changed, 9 insertions(+), 13 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 816285facd..4eef3d1dbd 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -42,6 +42,7 @@
 #include "hw/boards.h"
 #include "hw/i386/sgx-epc.h"
 #endif
+#include "tcg/tcg-cpu.h"
 
 #include "disas/capstone.h"
 #include "cpu-internal.h"
@@ -9034,6 +9035,9 @@ static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
 #ifndef CONFIG_USER_ONLY
     cc->sysemu_ops = &i386_sysemu_ops;
 #endif /* !CONFIG_USER_ONLY */
+#ifdef CONFIG_TCG
+    cc->tcg_ops = &x86_tcg_ops;
+#endif /* CONFIG_TCG */
 
     cc->gdb_arch_name = x86_gdb_arch_name;
 #ifdef TARGET_X86_64
diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c
index cca19cd40e..0160f3f70d 100644
--- a/target/i386/tcg/tcg-cpu.c
+++ b/target/i386/tcg/tcg-cpu.c
@@ -106,7 +106,7 @@ static bool x86_debug_check_breakpoint(CPUState *cs)
 
 #include "hw/core/tcg-cpu-ops.h"
 
-static const TCGCPUOps x86_tcg_ops = {
+const TCGCPUOps x86_tcg_ops = {
     .initialize = tcg_x86_init,
     .synchronize_from_tb = x86_cpu_synchronize_from_tb,
     .restore_state_to_opc = x86_restore_state_to_opc,
@@ -128,17 +128,6 @@ static const TCGCPUOps x86_tcg_ops = {
 #endif /* !CONFIG_USER_ONLY */
 };
 
-static void x86_tcg_cpu_init_ops(AccelCPUClass *accel_cpu, CPUClass *cc)
-{
-    /* for x86, all cpus use the same set of operations */
-    cc->tcg_ops = &x86_tcg_ops;
-}
-
-static void x86_tcg_cpu_class_init(CPUClass *cc)
-{
-    cc->init_accel_cpu = x86_tcg_cpu_init_ops;
-}
-
 static void x86_tcg_cpu_xsave_init(void)
 {
 #define XO(bit, field) \
@@ -187,7 +176,6 @@ static void x86_tcg_cpu_accel_class_init(ObjectClass *oc, void *data)
     acc->cpu_target_realize = tcg_cpu_realizefn;
 #endif /* CONFIG_USER_ONLY */
 
-    acc->cpu_class_init = x86_tcg_cpu_class_init;
     acc->cpu_instance_init = x86_tcg_cpu_instance_init;
 }
 static const TypeInfo x86_tcg_cpu_accel_type_info = {
diff --git a/target/i386/tcg/tcg-cpu.h b/target/i386/tcg/tcg-cpu.h
index 53a8494455..9bbf0cb875 100644
--- a/target/i386/tcg/tcg-cpu.h
+++ b/target/i386/tcg/tcg-cpu.h
@@ -19,6 +19,8 @@
 #ifndef TCG_CPU_H
 #define TCG_CPU_H
 
+#include "cpu.h"
+
 #define XSAVE_FCW_FSW_OFFSET    0x000
 #define XSAVE_FTW_FOP_OFFSET    0x004
 #define XSAVE_CWD_RIP_OFFSET    0x008
@@ -76,6 +78,8 @@ QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, zmm_hi256_state) != XSAVE_ZMM_HI256_OFF
 QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, hi16_zmm_state) != XSAVE_HI16_ZMM_OFFSET);
 QEMU_BUILD_BUG_ON(offsetof(X86XSaveArea, pkru_state) != XSAVE_PKRU_OFFSET);
 
+extern const TCGCPUOps x86_tcg_ops;
+
 bool tcg_cpu_realizefn(CPUState *cs, Error **errp);
 
 #endif /* TCG_CPU_H */
-- 
2.50.1