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target/i386: fix exceptions for MOV to DR

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Use raise_exception_ra (without error code) when raising the illegal
opcode operation; raise #GP when setting bits 63:32 of DR6 or DR7.

Move helper_get_dr to sysemu/ since it is a privileged instruction
that is not needed on user-mode emulators.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-07-06 17:53:29 +02:00
parent acf23ffb58
commit 533883fd7e
7 changed files with 35 additions and 45 deletions
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1
target/i386/tcg/translate.c
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@ -206,6 +206,7 @@ STUB_HELPER(outw, TCGv_env env, TCGv_i32 port, TCGv_i32 val)
STUB_HELPER(outl, TCGv_env env, TCGv_i32 port, TCGv_i32 val)
STUB_HELPER(rdmsr, TCGv_env env)
STUB_HELPER(read_crN, TCGv ret, TCGv_env env, TCGv_i32 reg)
STUB_HELPER(get_dr, TCGv ret, TCGv_env env, TCGv_i32 reg)
STUB_HELPER(set_dr, TCGv_env env, TCGv_i32 reg, TCGv val)
STUB_HELPER(stgi, TCGv_env env)
STUB_HELPER(svm_check_intercept, TCGv_env env, TCGv_i32 type)