diff options
Diffstat (limited to 'target-i386/cpu.h')
| -rw-r--r-- | target-i386/cpu.h | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 49950843f6..e4a7d5b6e4 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -123,8 +123,8 @@ /* hidden flags - used internally by qemu to represent additional cpu states. Only the CPL, INHIBIT_IRQ, SMM and SVMI are not - redundant. We avoid using the IOPL_MASK, TF_MASK and VM_MASK bit - position to ease oring with eflags. */ + redundant. We avoid using the IOPL_MASK, TF_MASK, VM_MASK and AC_MASK + bit positions to ease oring with eflags. */ /* current cpl */ #define HF_CPL_SHIFT 0 /* true if soft mmu is being used */ @@ -147,10 +147,12 @@ #define HF_CS64_SHIFT 15 /* only used on x86_64: 64 bit code segment */ #define HF_RF_SHIFT 16 /* must be same as eflags */ #define HF_VM_SHIFT 17 /* must be same as eflags */ +#define HF_AC_SHIFT 18 /* must be same as eflags */ #define HF_SMM_SHIFT 19 /* CPU in SMM mode */ #define HF_SVME_SHIFT 20 /* SVME enabled (copy of EFER.SVME) */ #define HF_SVMI_SHIFT 21 /* SVM intercepts are active */ #define HF_OSFXSR_SHIFT 22 /* CR4.OSFXSR */ +#define HF_SMAP_SHIFT 23 /* CR4.SMAP */ #define HF_CPL_MASK (3 << HF_CPL_SHIFT) #define HF_SOFTMMU_MASK (1 << HF_SOFTMMU_SHIFT) @@ -168,10 +170,12 @@ #define HF_CS64_MASK (1 << HF_CS64_SHIFT) #define HF_RF_MASK (1 << HF_RF_SHIFT) #define HF_VM_MASK (1 << HF_VM_SHIFT) +#define HF_AC_MASK (1 << HF_AC_SHIFT) #define HF_SMM_MASK (1 << HF_SMM_SHIFT) #define HF_SVME_MASK (1 << HF_SVME_SHIFT) #define HF_SVMI_MASK (1 << HF_SVMI_SHIFT) #define HF_OSFXSR_MASK (1 << HF_OSFXSR_SHIFT) +#define HF_SMAP_MASK (1 << HF_SMAP_SHIFT) /* hflags2 */ @@ -210,6 +214,13 @@ #define CR4_OSFXSR_SHIFT 9 #define CR4_OSFXSR_MASK (1 << CR4_OSFXSR_SHIFT) #define CR4_OSXMMEXCPT_MASK (1 << 10) +#define CR4_VMXE_MASK (1 << 13) +#define CR4_SMXE_MASK (1 << 14) +#define CR4_FSGSBASE_MASK (1 << 16) +#define CR4_PCIDE_MASK (1 << 17) +#define CR4_OSXSAVE_MASK (1 << 18) +#define CR4_SMEP_MASK (1 << 20) +#define CR4_SMAP_MASK (1 << 21) #define DR6_BD (1 << 13) #define DR6_BS (1 << 14) @@ -474,6 +485,9 @@ #define CPUID_SVM_PAUSEFILTER (1 << 10) #define CPUID_SVM_PFTHRESHOLD (1 << 12) +#define CPUID_7_0_EBX_SMEP (1 << 7) +#define CPUID_7_0_EBX_SMAP (1 << 20) + #define CPUID_VENDOR_INTEL_1 0x756e6547 /* "Genu" */ #define CPUID_VENDOR_INTEL_2 0x49656e69 /* "ineI" */ #define CPUID_VENDOR_INTEL_3 0x6c65746e /* "ntel" */ @@ -649,7 +663,7 @@ typedef struct { #define CPU_NB_REGS CPU_NB_REGS32 #endif -#define NB_MMU_MODES 2 +#define NB_MMU_MODES 3 typedef enum TPRAccess { TPR_ACCESS_READ, @@ -779,7 +793,7 @@ typedef struct CPUX86State { uint32_t cpuid_xlevel2; uint32_t cpuid_ext4_features; /* Flags from CPUID[EAX=7,ECX=0].EBX */ - uint32_t cpuid_7_0_ebx; + uint32_t cpuid_7_0_ebx_features; /* MTRRs */ uint64_t mtrr_fixed[11]; @@ -1018,10 +1032,15 @@ static inline CPUX86State *cpu_init(const char *cpu_model) /* MMU modes definitions */ #define MMU_MODE0_SUFFIX _kernel #define MMU_MODE1_SUFFIX _user -#define MMU_USER_IDX 1 +#define MMU_MODE2_SUFFIX _ksmap /* Kernel with SMAP override */ +#define MMU_KERNEL_IDX 0 +#define MMU_USER_IDX 1 +#define MMU_KSMAP_IDX 2 static inline int cpu_mmu_index (CPUX86State *env) { - return (env->hflags & HF_CPL_MASK) == 3 ? 1 : 0; + return (env->hflags & HF_CPL_MASK) == 3 ? MMU_USER_IDX : + ((env->hflags & HF_SMAP_MASK) && (env->eflags & AC_MASK)) + ? MMU_KSMAP_IDX : MMU_KERNEL_IDX; } #undef EAX @@ -1107,7 +1126,7 @@ static inline void cpu_get_tb_cpu_state(CPUX86State *env, target_ulong *pc, *cs_base = env->segs[R_CS].base; *pc = *cs_base + env->eip; *flags = env->hflags | - (env->eflags & (IOPL_MASK | TF_MASK | RF_MASK | VM_MASK)); + (env->eflags & (IOPL_MASK | TF_MASK | RF_MASK | VM_MASK | AC_MASK)); } void do_cpu_init(X86CPU *cpu); |