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target-i386: Add PKU and and OSPKE support

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Add PKU and OSPKE CPUID features, including xsave state and
migration support.

Signed-off-by: Huaitong Han <huaitong.han@intel.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
[ehabkost: squashed 3 patches together, edited patch description]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Huaitong Han 2015-11-18 10:20:15 +08:00 • committed by Eduardo Habkost
parent 36f96c4b6b
commit f74eefe0b9
4 changed files with 56 additions and 1 deletions
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3
target-i386/kvm.c
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@ -1299,6 +1299,7 @@ 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)
{
@ -1352,6 +1353,7 @@ 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;
@ -1770,6 +1772,7 @@ 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;
}