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target/i386: hax: change to use x86_update_hflags 

Change to use x86_update_hflags instead of keeping another copy
at hax side. This also fix bug like HF_CPL_MASK should be SS.DPL,
not CS.DPL.

Signed-off-by: Tao Wu <lepton@google.com>
Message-Id: <20180110195056.85403-2-lepton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Tao Wu 2018-01-10 11:50:55 -08:00 committed by Paolo Bonzini
parent 35b1b92751
commit e527f86e3e
1 changed files with 1 additions and 51 deletions
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52
target/i386/hax-all.c
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@ -782,56 +782,6 @@ static int hax_set_segments(CPUArchState *env, struct vcpu_state_t *sregs)
return 0;
}
/*
* After get the state from the kernel module, some
* qemu emulator state need be updated also
*/
static int hax_setup_qemu_emulator(CPUArchState *env)
{
#define HFLAG_COPY_MASK (~( \
HF_CPL_MASK | HF_PE_MASK | HF_MP_MASK | HF_EM_MASK | \
HF_TS_MASK | HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK | \
HF_OSFXSR_MASK | HF_LMA_MASK | HF_CS32_MASK | \
HF_SS32_MASK | HF_CS64_MASK | HF_ADDSEG_MASK))
uint32_t hflags;
hflags = (env->segs[R_CS].flags >> DESC_DPL_SHIFT) & HF_CPL_MASK;
hflags |= (env->cr[0] & CR0_PE_MASK) << (HF_PE_SHIFT - CR0_PE_SHIFT);
hflags |= (env->cr[0] << (HF_MP_SHIFT - CR0_MP_SHIFT)) &
(HF_MP_MASK | HF_EM_MASK | HF_TS_MASK);
hflags |= (env->eflags & (HF_TF_MASK | HF_VM_MASK | HF_IOPL_MASK));
hflags |= (env->cr[4] & CR4_OSFXSR_MASK) <<
(HF_OSFXSR_SHIFT - CR4_OSFXSR_SHIFT);
if (env->efer & MSR_EFER_LMA) {
hflags |= HF_LMA_MASK;
}
if ((hflags & HF_LMA_MASK) && (env->segs[R_CS].flags & DESC_L_MASK)) {
hflags |= HF_CS32_MASK | HF_SS32_MASK | HF_CS64_MASK;
} else {
hflags |= (env->segs[R_CS].flags & DESC_B_MASK) >>
(DESC_B_SHIFT - HF_CS32_SHIFT);
hflags |= (env->segs[R_SS].flags & DESC_B_MASK) >>
(DESC_B_SHIFT - HF_SS32_SHIFT);
if (!(env->cr[0] & CR0_PE_MASK) ||
(env->eflags & VM_MASK) || !(hflags & HF_CS32_MASK)) {
hflags |= HF_ADDSEG_MASK;
} else {
hflags |= ((env->segs[R_DS].base |
env->segs[R_ES].base |
env->segs[R_SS].base) != 0) << HF_ADDSEG_SHIFT;
}
}
hflags &= ~HF_SMM_MASK;
env->hflags = (env->hflags & HFLAG_COPY_MASK) | hflags;
return 0;
}
static int hax_sync_vcpu_register(CPUArchState *env, int set)
{
struct vcpu_state_t regs;
@ -888,7 +838,7 @@ static int hax_sync_vcpu_register(CPUArchState *env, int set)
}
}
if (!set) {
hax_setup_qemu_emulator(env);
x86_update_hflags(env);
}
return 0;
}