i386: hvf: Drop regs in HVFX86EmulatorState

HVFX86EmulatorState carries it's own copy of x86 registers. It can be
dropped in favor of regs in generic CPUX86State.

Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20200528193758.51454-11-r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2 files changed, 16 insertions, 15 deletions

diff --git a/target/i386/hvf/x86.h b/target/i386/hvf/x86.h
index f0d03faff9..6048b5cc74 100644
--- a/target/i386/hvf/x86.h
+++ b/target/i386/hvf/x86.h
@@ -235,13 +235,14 @@ typedef struct lazy_flags {
 
 /* Definition of hvf_x86_state is here */
 struct HVFX86EmulatorState {
-    struct x86_register regs[16];
     struct lazy_flags   lflags;
     uint8_t mmio_buf[4096];
 };
 
 /* useful register access  macros */
-#define RRX(cpu, reg) (cpu->hvf_emul->regs[reg].rrx)
+#define x86_reg(cpu, reg) ((x86_register *) &cpu->regs[reg])
+
+#define RRX(cpu, reg)   (x86_reg(cpu, reg)->rrx)
 #define RAX(cpu)        RRX(cpu, R_EAX)
 #define RCX(cpu)        RRX(cpu, R_ECX)
 #define RDX(cpu)        RRX(cpu, R_EDX)
@@ -259,7 +260,7 @@ struct HVFX86EmulatorState {
 #define R14(cpu)        RRX(cpu, R_R14)
 #define R15(cpu)        RRX(cpu, R_R15)
 
-#define ERX(cpu, reg)   (cpu->hvf_emul->regs[reg].erx)
+#define ERX(cpu, reg)   (x86_reg(cpu, reg)->erx)
 #define EAX(cpu)        ERX(cpu, R_EAX)
 #define ECX(cpu)        ERX(cpu, R_ECX)
 #define EDX(cpu)        ERX(cpu, R_EDX)
@@ -269,7 +270,7 @@ struct HVFX86EmulatorState {
 #define ESI(cpu)        ERX(cpu, R_ESI)
 #define EDI(cpu)        ERX(cpu, R_EDI)
 
-#define RX(cpu, reg)   (cpu->hvf_emul->regs[reg].rx)
+#define RX(cpu, reg)   (x86_reg(cpu, reg)->rx)
 #define AX(cpu)        RX(cpu, R_EAX)
 #define CX(cpu)        RX(cpu, R_ECX)
 #define DX(cpu)        RX(cpu, R_EDX)
@@ -279,13 +280,13 @@ struct HVFX86EmulatorState {
 #define SI(cpu)        RX(cpu, R_ESI)
 #define DI(cpu)        RX(cpu, R_EDI)
 
-#define RL(cpu, reg)   (cpu->hvf_emul->regs[reg].lx)
+#define RL(cpu, reg)   (x86_reg(cpu, reg)->lx)
 #define AL(cpu)        RL(cpu, R_EAX)
 #define CL(cpu)        RL(cpu, R_ECX)
 #define DL(cpu)        RL(cpu, R_EDX)
 #define BL(cpu)        RL(cpu, R_EBX)
 
-#define RH(cpu, reg)   (cpu->hvf_emul->regs[reg].hx)
+#define RH(cpu, reg)   (x86_reg(cpu, reg)->hx)
 #define AH(cpu)        RH(cpu, R_EAX)
 #define CH(cpu)        RH(cpu, R_ECX)
 #define DH(cpu)        RH(cpu, R_EDX)
diff --git a/target/i386/hvf/x86_emu.c b/target/i386/hvf/x86_emu.c
index 04fac64e72..1ad2c30e16 100644
--- a/target/i386/hvf/x86_emu.c
+++ b/target/i386/hvf/x86_emu.c
@@ -95,13 +95,13 @@ target_ulong read_reg(CPUX86State *env, int reg, int size)
 {
     switch (size) {
     case 1:
-        return env->hvf_emul->regs[reg].lx;
+        return x86_reg(env, reg)->lx;
     case 2:
-        return env->hvf_emul->regs[reg].rx;
+        return x86_reg(env, reg)->rx;
     case 4:
-        return env->hvf_emul->regs[reg].erx;
+        return x86_reg(env, reg)->erx;
     case 8:
-        return env->hvf_emul->regs[reg].rrx;
+        return x86_reg(env, reg)->rrx;
     default:
         abort();
     }
@@ -112,16 +112,16 @@ void write_reg(CPUX86State *env, int reg, target_ulong val, int size)
 {
     switch (size) {
     case 1:
-        env->hvf_emul->regs[reg].lx = val;
+        x86_reg(env, reg)->lx = val;
         break;
     case 2:
-        env->hvf_emul->regs[reg].rx = val;
+        x86_reg(env, reg)->rx = val;
         break;
     case 4:
-        env->hvf_emul->regs[reg].rrx = (uint32_t)val;
+        x86_reg(env, reg)->rrx = (uint32_t)val;
         break;
     case 8:
-        env->hvf_emul->regs[reg].rrx = val;
+        x86_reg(env, reg)->rrx = val;
         break;
     default:
         abort();
@@ -173,7 +173,7 @@ void write_val_to_reg(target_ulong reg_ptr, target_ulong val, int size)
 
 static bool is_host_reg(struct CPUX86State *env, target_ulong ptr)
 {
-    return (ptr - (target_ulong)&env->hvf_emul->regs[0]) < sizeof(env->hvf_emul->regs);
+    return (ptr - (target_ulong)&env->regs[0]) < sizeof(env->regs);
 }
 
 void write_val_ext(struct CPUX86State *env, target_ulong ptr, target_ulong val, int size)