bulk: Call in place single use cpu_env()

Avoid CPUArchState local variable when cpu_env() is used once.

Mechanical patch using the following Coccinelle spatch script:

 @@
 type CPUArchState;
 identifier env;
 expression cs;
 @@
  {
 -    CPUArchState *env = cpu_env(cs);
      ... when != env
 -     env
 +     cpu_env(cs)
      ... when != env
  }

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-5-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

2 files changed, 8 insertions, 16 deletions

diff --git a/target/i386/nvmm/nvmm-all.c b/target/i386/nvmm/nvmm-all.c
index cfdca91123..49a3a3b916 100644
--- a/target/i386/nvmm/nvmm-all.c
+++ b/target/i386/nvmm/nvmm-all.c
@@ -340,7 +340,6 @@ nvmm_get_registers(CPUState *cpu)
 static bool
 nvmm_can_take_int(CPUState *cpu)
 {
-    CPUX86State *env = cpu_env(cpu);
     AccelCPUState *qcpu = cpu->accel;
     struct nvmm_vcpu *vcpu = &qcpu->vcpu;
     struct nvmm_machine *mach = get_nvmm_mach();
@@ -349,7 +348,7 @@ nvmm_can_take_int(CPUState *cpu)
         return false;
     }
 
-    if (qcpu->int_shadow || !(env->eflags & IF_MASK)) {
+    if (qcpu->int_shadow || !(cpu_env(cpu)->eflags & IF_MASK)) {
         struct nvmm_x64_state *state = vcpu->state;
 
         /* Exit on interrupt window. */
@@ -645,13 +644,12 @@ static int
 nvmm_handle_halted(struct nvmm_machine *mach, CPUState *cpu,
     struct nvmm_vcpu_exit *exit)
 {
-    CPUX86State *env = cpu_env(cpu);
     int ret = 0;
 
     bql_lock();
 
     if (!((cpu->interrupt_request & CPU_INTERRUPT_HARD) &&
-          (env->eflags & IF_MASK)) &&
+          (cpu_env(cpu)->eflags & IF_MASK)) &&
         !(cpu->interrupt_request & CPU_INTERRUPT_NMI)) {
         cpu->exception_index = EXCP_HLT;
         cpu->halted = true;
diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c
index a7262654ac..31eec7048c 100644
--- a/target/i386/whpx/whpx-all.c
+++ b/target/i386/whpx/whpx-all.c
@@ -300,7 +300,6 @@ static SegmentCache whpx_seg_h2q(const WHV_X64_SEGMENT_REGISTER *hs)
 /* X64 Extended Control Registers */
 static void whpx_set_xcrs(CPUState *cpu)
 {
-    CPUX86State *env = cpu_env(cpu);
     HRESULT hr;
     struct whpx_state *whpx = &whpx_global;
     WHV_REGISTER_VALUE xcr0;
@@ -311,7 +310,7 @@ static void whpx_set_xcrs(CPUState *cpu)
     }
 
     /* Only xcr0 is supported by the hypervisor currently */
-    xcr0.Reg64 = env->xcr0;
+    xcr0.Reg64 = cpu_env(cpu)->xcr0;
     hr = whp_dispatch.WHvSetVirtualProcessorRegisters(
         whpx->partition, cpu->cpu_index, &xcr0_name, 1, &xcr0);
     if (FAILED(hr)) {
@@ -321,7 +320,6 @@ static void whpx_set_xcrs(CPUState *cpu)
 
 static int whpx_set_tsc(CPUState *cpu)
 {
-    CPUX86State *env = cpu_env(cpu);
     WHV_REGISTER_NAME tsc_reg = WHvX64RegisterTsc;
     WHV_REGISTER_VALUE tsc_val;
     HRESULT hr;
@@ -345,7 +343,7 @@ static int whpx_set_tsc(CPUState *cpu)
         }
     }
 
-    tsc_val.Reg64 = env->tsc;
+    tsc_val.Reg64 = cpu_env(cpu)->tsc;
     hr = whp_dispatch.WHvSetVirtualProcessorRegisters(
         whpx->partition, cpu->cpu_index, &tsc_reg, 1, &tsc_val);
     if (FAILED(hr)) {
@@ -556,7 +554,6 @@ static void whpx_set_registers(CPUState *cpu, int level)
 
 static int whpx_get_tsc(CPUState *cpu)
 {
-    CPUX86State *env = cpu_env(cpu);
     WHV_REGISTER_NAME tsc_reg = WHvX64RegisterTsc;
     WHV_REGISTER_VALUE tsc_val;
     HRESULT hr;
@@ -569,14 +566,13 @@ static int whpx_get_tsc(CPUState *cpu)
         return -1;
     }
 
-    env->tsc = tsc_val.Reg64;
+    cpu_env(cpu)->tsc = tsc_val.Reg64;
     return 0;
 }
 
 /* X64 Extended Control Registers */
 static void whpx_get_xcrs(CPUState *cpu)
 {
-    CPUX86State *env = cpu_env(cpu);
     HRESULT hr;
     struct whpx_state *whpx = &whpx_global;
     WHV_REGISTER_VALUE xcr0;
@@ -594,7 +590,7 @@ static void whpx_get_xcrs(CPUState *cpu)
         return;
     }
 
-    env->xcr0 = xcr0.Reg64;
+    cpu_env(cpu)->xcr0 = xcr0.Reg64;
 }
 
 static void whpx_get_registers(CPUState *cpu)
@@ -1400,8 +1396,7 @@ static vaddr whpx_vcpu_get_pc(CPUState *cpu, bool exit_context_valid)
 {
     if (cpu->vcpu_dirty) {
         /* The CPU registers have been modified by other parts of QEMU. */
-        CPUArchState *env = cpu_env(cpu);
-        return env->eip;
+        return cpu_env(cpu)->eip;
     } else if (exit_context_valid) {
         /*
          * The CPU registers have not been modified by neither other parts
@@ -1439,12 +1434,11 @@ static vaddr whpx_vcpu_get_pc(CPUState *cpu, bool exit_context_valid)
 
 static int whpx_handle_halt(CPUState *cpu)
 {
-    CPUX86State *env = cpu_env(cpu);
     int ret = 0;
 
     bql_lock();
     if (!((cpu->interrupt_request & CPU_INTERRUPT_HARD) &&
-          (env->eflags & IF_MASK)) &&
+          (cpu_env(cpu)->eflags & IF_MASK)) &&
         !(cpu->interrupt_request & CPU_INTERRUPT_NMI)) {
         cpu->exception_index = EXCP_HLT;
         cpu->halted = true;