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target-i386: implement PKE for TCG

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Tested with kvm-unit-tests.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-02-09 14:14:28 +01:00
parent cf7cc9291b
commit 0f70ed4759
7 changed files with 110 additions and 5 deletions
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27
target-i386/misc_helper.c
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@ -609,3 +609,30 @@ void helper_debug(CPUX86State *env)
cs->exception_index = EXCP_DEBUG;
cpu_loop_exit(cs);
}
uint64_t helper_rdpkru(CPUX86State *env, uint32_t ecx)
{
if ((env->cr[4] & CR4_PKE_MASK) == 0) {
raise_exception_err_ra(env, EXCP06_ILLOP, 0, GETPC());
}
if (ecx != 0) {
raise_exception_err_ra(env, EXCP0D_GPF, 0, GETPC());
}
return env->pkru;
}
void helper_wrpkru(CPUX86State *env, uint32_t ecx, uint64_t val)
{
CPUState *cs = CPU(x86_env_get_cpu(env));
if ((env->cr[4] & CR4_PKE_MASK) == 0) {
raise_exception_err_ra(env, EXCP06_ILLOP, 0, GETPC());
}
if (ecx != 0 || (val & 0xFFFFFFFF00000000ull)) {
raise_exception_err_ra(env, EXCP0D_GPF, 0, GETPC());
}
env->pkru = val;
tlb_flush(cs, 1);
}