target-i386: fix Coverity complaints about overflows

[qemu.git] / target-i386 / cpu.h

diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index 71b505f56c0c108d40d394096bf3af3677933386..015f5b5276298ecdb3b90c538d0f507bd575fcbb 100644 (file)
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -395,6 +395,9 @@
 #define XSTATE_YMM                      (1ULL << 2)
 #define XSTATE_BNDREGS                  (1ULL << 3)
 #define XSTATE_BNDCSR                   (1ULL << 4)
+#define XSTATE_OPMASK                   (1ULL << 5)
+#define XSTATE_ZMM_Hi256                (1ULL << 6)
+#define XSTATE_Hi16_ZMM                 (1ULL << 7)
 
 
 /* CPUID feature words */
@@ -560,9 +563,13 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
 #define CPUID_7_0_EBX_INVPCID  (1U << 10)
 #define CPUID_7_0_EBX_RTM      (1U << 11)
 #define CPUID_7_0_EBX_MPX      (1U << 14)
+#define CPUID_7_0_EBX_AVX512F  (1U << 16) /* AVX-512 Foundation */
 #define CPUID_7_0_EBX_RDSEED   (1U << 18)
 #define CPUID_7_0_EBX_ADX      (1U << 19)
 #define CPUID_7_0_EBX_SMAP     (1U << 20)
+#define CPUID_7_0_EBX_AVX512PF (1U << 26) /* AVX-512 Prefetch */
+#define CPUID_7_0_EBX_AVX512ER (1U << 27) /* AVX-512 Exponential and Reciprocal */
+#define CPUID_7_0_EBX_AVX512CD (1U << 28) /* AVX-512 Conflict Detection */
 
 /* CPUID[0x80000007].EDX flags: */
 #define CPUID_APM_INVTSC       (1U << 8)
@@ -706,6 +713,24 @@ typedef union {
     float64 _d[2];
 } XMMReg;
 
+typedef union {
+    uint8_t _b[32];
+    uint16_t _w[16];
+    uint32_t _l[8];
+    uint64_t _q[4];
+    float32 _s[8];
+    float64 _d[4];
+} YMMReg;
+
+typedef union {
+    uint8_t _b[64];
+    uint16_t _w[32];
+    uint32_t _l[16];
+    uint64_t _q[8];
+    float32 _s[16];
+    float64 _d[8];
+} ZMMReg;
+
 typedef union {
     uint8_t _b[8];
     uint16_t _w[4];
@@ -725,6 +750,20 @@ typedef struct BNDCSReg {
 } BNDCSReg;
 
 #ifdef HOST_WORDS_BIGENDIAN
+#define ZMM_B(n) _b[63 - (n)]
+#define ZMM_W(n) _w[31 - (n)]
+#define ZMM_L(n) _l[15 - (n)]
+#define ZMM_S(n) _s[15 - (n)]
+#define ZMM_Q(n) _q[7 - (n)]
+#define ZMM_D(n) _d[7 - (n)]
+
+#define YMM_B(n) _b[31 - (n)]
+#define YMM_W(n) _w[15 - (n)]
+#define YMM_L(n) _l[7 - (n)]
+#define YMM_S(n) _s[7 - (n)]
+#define YMM_Q(n) _q[3 - (n)]
+#define YMM_D(n) _d[3 - (n)]
+
 #define XMM_B(n) _b[15 - (n)]
 #define XMM_W(n) _w[7 - (n)]
 #define XMM_L(n) _l[3 - (n)]
@@ -737,6 +776,20 @@ typedef struct BNDCSReg {
 #define MMX_L(n) _l[1 - (n)]
 #define MMX_S(n) _s[1 - (n)]
 #else
+#define ZMM_B(n) _b[n]
+#define ZMM_W(n) _w[n]
+#define ZMM_L(n) _l[n]
+#define ZMM_S(n) _s[n]
+#define ZMM_Q(n) _q[n]
+#define ZMM_D(n) _d[n]
+
+#define YMM_B(n) _b[n]
+#define YMM_W(n) _w[n]
+#define YMM_L(n) _l[n]
+#define YMM_S(n) _s[n]
+#define YMM_Q(n) _q[n]
+#define YMM_D(n) _d[n]
+
 #define XMM_B(n) _b[n]
 #define XMM_W(n) _w[n]
 #define XMM_L(n) _l[n]
@@ -775,6 +828,8 @@ typedef struct {
 
 #define NB_MMU_MODES 3
 
+#define NB_OPMASK_REGS 8
+
 typedef enum TPRAccess {
     TPR_ACCESS_READ,
     TPR_ACCESS_WRITE,
@@ -839,6 +894,12 @@ typedef struct CPUX86State {
 
     XMMReg ymmh_regs[CPU_NB_REGS];
 
+    uint64_t opmask_regs[NB_OPMASK_REGS];
+    YMMReg zmmh_regs[CPU_NB_REGS];
+#ifdef TARGET_X86_64
+    ZMMReg hi16_zmm_regs[CPU_NB_REGS];
+#endif
+
     /* sysenter registers */
     uint32_t sysenter_cs;
     target_ulong sysenter_esp;
@@ -1043,7 +1104,7 @@ static inline void cpu_x86_load_seg_cache(CPUX86State *env,
 }
 
 static inline void cpu_x86_load_seg_cache_sipi(X86CPU *cpu,
-                                               int sipi_vector)
+                                               uint8_t sipi_vector)
 {
     CPUState *cs = CPU(cpu);
     CPUX86State *env = &cpu->env;
@@ -1251,6 +1312,7 @@ void QEMU_NORETURN raise_interrupt(CPUX86State *nenv, int intno, int is_int,
 /* cc_helper.c */
 extern const uint8_t parity_table[256];
 uint32_t cpu_cc_compute_all(CPUX86State *env1, int op);
+void update_fp_status(CPUX86State *env);
 
 static inline uint32_t cpu_compute_eflags(CPUX86State *env)
 {
@@ -1286,6 +1348,7 @@ static inline void cpu_load_efer(CPUX86State *env, uint64_t val)
 
 /* fpu_helper.c */
 void cpu_set_mxcsr(CPUX86State *env, uint32_t val);
+void cpu_set_fpuc(CPUX86State *env, uint16_t val);
 
 /* svm_helper.c */
 void cpu_svm_check_intercept_param(CPUX86State *env1, uint32_t type,
@@ -1302,7 +1365,8 @@ void cpu_report_tpr_access(CPUX86State *env, TPRAccess access);
 void x86_cpu_compat_set_features(const char *cpu_model, FeatureWord w,
                                  uint32_t feat_add, uint32_t feat_remove);
 
-void x86_cpu_compat_disable_kvm_features(FeatureWord w, uint32_t features);
+void x86_cpu_compat_kvm_no_autoenable(FeatureWord w, uint32_t features);
+void x86_cpu_compat_kvm_no_autodisable(FeatureWord w, uint32_t features);
 
 
 /* Return name of 32-bit register, from a R_* constant */