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
next prev parent 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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