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From: Thomas Huth <thuth@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org
Cc: "Richard Henderson" <richard.henderson@linaro.org>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Pierrick Bouvier" <pierrick.bouvier@linaro.org>
Subject: [PATCH 1/2] target/i386/tcg/sysemu: Move target specific SMM code to separate functions
Date: Wed, 25 Mar 2026 13:09:43 +0100	[thread overview]
Message-ID: <20260325120944.29391-2-thuth@redhat.com> (raw)
In-Reply-To: <20260325120944.29391-1-thuth@redhat.com>

From: Thomas Huth <thuth@redhat.com>

This code movement will make the next patch easier to read.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 target/i386/tcg/system/smm_helper.c | 47 ++++++++++++++++++-----------
 1 file changed, 30 insertions(+), 17 deletions(-)

diff --git a/target/i386/tcg/system/smm_helper.c b/target/i386/tcg/system/smm_helper.c
index fb028a8272f..3be78cd53d3 100644
--- a/target/i386/tcg/system/smm_helper.c
+++ b/target/i386/tcg/system/smm_helper.c
@@ -32,26 +32,13 @@
 #define SMM_REVISION_ID 0x00020000
 #endif
 
-void do_smm_enter(X86CPU *cpu)
+static void sm_state_init(X86CPU *cpu)
 {
     CPUX86State *env = &cpu->env;
     CPUState *cs = CPU(cpu);
-    target_ulong sm_state;
     SegmentCache *dt;
     int i, offset;
-
-    qemu_log_mask(CPU_LOG_INT, "SMM: enter\n");
-    log_cpu_state_mask(CPU_LOG_INT, CPU(cpu), CPU_DUMP_CCOP);
-
-    env->msr_smi_count++;
-    env->hflags |= HF_SMM_MASK;
-    if (env->hflags2 & HF2_NMI_MASK) {
-        env->hflags2 |= HF2_SMM_INSIDE_NMI_MASK;
-    } else {
-        env->hflags2 |= HF2_NMI_MASK;
-    }
-
-    sm_state = env->smbase + 0x8000;
+    target_ulong sm_state = env->smbase + 0x8000;
 
 #ifdef TARGET_X86_64
     for (i = 0; i < 6; i++) {
@@ -156,6 +143,25 @@ void do_smm_enter(X86CPU *cpu)
     x86_stl_phys(cs, sm_state + 0x7efc, SMM_REVISION_ID);
     x86_stl_phys(cs, sm_state + 0x7ef8, env->smbase);
 #endif
+}
+
+void do_smm_enter(X86CPU *cpu)
+{
+    CPUX86State *env = &cpu->env;
+
+    qemu_log_mask(CPU_LOG_INT, "SMM: enter\n");
+    log_cpu_state_mask(CPU_LOG_INT, CPU(cpu), CPU_DUMP_CCOP);
+
+    env->msr_smi_count++;
+    env->hflags |= HF_SMM_MASK;
+    if (env->hflags2 & HF2_NMI_MASK) {
+        env->hflags2 |= HF2_SMM_INSIDE_NMI_MASK;
+    } else {
+        env->hflags2 |= HF2_NMI_MASK;
+    }
+
+    sm_state_init(cpu);
+
     /* init SMM cpu state */
 
 #ifdef TARGET_X86_64
@@ -191,9 +197,8 @@ void do_smm_enter(X86CPU *cpu)
                            DESC_G_MASK | DESC_A_MASK);
 }
 
-void helper_rsm(CPUX86State *env)
+static void rsm_load_regs(CPUX86State *env)
 {
-    X86CPU *cpu = env_archcpu(env);
     CPUState *cs = env_cpu(env);
     target_ulong sm_state;
     int i, offset;
@@ -308,6 +313,14 @@ void helper_rsm(CPUX86State *env)
         env->smbase = x86_ldl_phys(cs, sm_state + 0x7ef8);
     }
 #endif
+}
+
+void helper_rsm(CPUX86State *env)
+{
+    X86CPU *cpu = env_archcpu(env);
+
+    rsm_load_regs(env);
+
     if ((env->hflags2 & HF2_SMM_INSIDE_NMI_MASK) == 0) {
         env->hflags2 &= ~HF2_NMI_MASK;
     }
-- 
2.53.0



  reply	other threads:[~2026-03-25 12:11 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-25 12:09 [PATCH for-11.1 0/2] target/i386: Allow 32-bit SMM code to be used in the 64-bit binary Thomas Huth
2026-03-25 12:09 ` Thomas Huth [this message]
2026-03-25 12:09 ` [PATCH 2/2] target/i386/tcg/sysemu: " Thomas Huth
2026-03-25 15:18 ` [PATCH for-11.1 0/2] target/i386: " Philippe Mathieu-Daudé

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