@@ -487,6 +487,8 @@ static const ExtSaveArea ext_save_areas[] = {
.offset = 0x480, .size = 0x200 },
[7] = { .feature = FEAT_7_0_EBX, .bits = CPUID_7_0_EBX_AVX512F,
.offset = 0x680, .size = 0x400 },
+ [9] = { .feature = FEAT_7_0_ECX, .bits = CPUID_7_0_ECX_PKU,
+ .offset = 0xA80, .size = 0x8 },
};
const char *get_register_name_32(unsigned int reg)
@@ -401,6 +401,7 @@
#define XSTATE_OPMASK (1ULL << 5)
#define XSTATE_ZMM_Hi256 (1ULL << 6)
#define XSTATE_Hi16_ZMM (1ULL << 7)
+#define XSTATE_PKRU (1ULL << 9)
/* CPUID feature words */
@@ -984,6 +985,8 @@ typedef struct CPUX86State {
uint64_t xcr0;
uint64_t xss;
+ uint32_t pkru;
+
TPRAccess tpr_access_type;
} CPUX86State;
@@ -1092,6 +1092,7 @@ static int kvm_put_fpu(X86CPU *cpu)
#define XSAVE_OPMASK 272
#define XSAVE_ZMM_Hi256 288
#define XSAVE_Hi16_ZMM 416
+#define XSAVE_PKRU 672
static int kvm_put_xsave(X86CPU *cpu)
{
@@ -1145,6 +1146,7 @@ static int kvm_put_xsave(X86CPU *cpu)
#ifdef TARGET_X86_64
memcpy(&xsave->region[XSAVE_Hi16_ZMM], &env->xmm_regs[16],
16 * sizeof env->xmm_regs[16]);
+ memcpy(&xsave->region[XSAVE_PKRU], &env->pkru, sizeof env->pkru);
#endif
r = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_XSAVE, xsave);
return r;
@@ -1516,6 +1518,7 @@ static int kvm_get_xsave(X86CPU *cpu)
#ifdef TARGET_X86_64
memcpy(&env->xmm_regs[16], &xsave->region[XSAVE_Hi16_ZMM],
16 * sizeof env->xmm_regs[16]);
+ memcpy(&env->pkru, &xsave->region[XSAVE_PKRU], sizeof env->pkru);
#endif
return 0;
}
This patch adds pkeys support for xsave state handling. Signed-off-by: Huaitong Han <huaitong.han@intel.com>