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charset="utf-8" From: Mohamed Mediouni Signed-off-by: Mohamed Mediouni Link: https://lore.kernel.org/r/20260223233950.96076-23-mohamed@unpredictab= le.fr Signed-off-by: Paolo Bonzini --- target/i386/emulate/x86_mmu.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/target/i386/emulate/x86_mmu.c b/target/i386/emulate/x86_mmu.c index 11e17c2db1d..8261ca16351 100644 --- a/target/i386/emulate/x86_mmu.c +++ b/target/i386/emulate/x86_mmu.c @@ -240,8 +240,29 @@ MMUTranslateResult mmu_gva_to_gpa(CPUState *cpu, targe= t_ulong gva, uint64_t *gpa return res; } =20 +static int translate_res_to_error_code(MMUTranslateResult res, bool is_wri= te, bool is_user) +{ + int error_code =3D 0; + if (is_user) { + error_code |=3D PG_ERROR_U_MASK; + } + if (!(res & MMU_TRANSLATE_PAGE_NOT_MAPPED)) { + error_code |=3D PG_ERROR_P_MASK; + } + if (is_write && (res & MMU_TRANSLATE_PRIV_VIOLATION)) { + error_code |=3D PG_ERROR_W_MASK; + } + if (res & MMU_TRANSLATE_INVALID_PT_FLAGS) { + error_code |=3D PG_ERROR_RSVD_MASK; + } + return error_code; +} + static MMUTranslateResult x86_write_mem_ex(CPUState *cpu, void *data, targ= et_ulong gva, int bytes, bool priv_check_exempt) { + X86CPU *x86_cpu =3D X86_CPU(cpu); + CPUX86State *env =3D &x86_cpu->env; + MMUTranslateResult translate_res =3D MMU_TRANSLATE_SUCCESS; MemTxResult mem_tx_res; uint64_t gpa; @@ -252,6 +273,9 @@ static MMUTranslateResult x86_write_mem_ex(CPUState *cp= u, void *data, target_ulo =20 translate_res =3D mmu_gva_to_gpa(cpu, gva, &gpa, MMU_TRANSLATE_VAL= IDATE_WRITE); if (translate_res) { + int error_code =3D translate_res_to_error_code(translate_res, = true, is_user(cpu)); + env->cr[2] =3D gva; + x86_emul_raise_exception(env, EXCP0E_PAGE, error_code); return translate_res; } =20 @@ -284,6 +308,9 @@ MMUTranslateResult x86_write_mem_priv(CPUState *cpu, vo= id *data, target_ulong gv =20 static MMUTranslateResult x86_read_mem_ex(CPUState *cpu, void *data, targe= t_ulong gva, int bytes, bool priv_check_exempt) { + X86CPU *x86_cpu =3D X86_CPU(cpu); + CPUX86State *env =3D &x86_cpu->env; + MMUTranslateResult translate_res =3D MMU_TRANSLATE_SUCCESS; MemTxResult mem_tx_res; uint64_t gpa; @@ -294,6 +321,9 @@ static MMUTranslateResult x86_read_mem_ex(CPUState *cpu= , void *data, target_ulon =20 translate_res =3D mmu_gva_to_gpa(cpu, gva, &gpa, 0); if (translate_res) { + int error_code =3D translate_res_to_error_code(translate_res, = false, is_user(cpu)); + env->cr[2] =3D gva; + x86_emul_raise_exception(env, EXCP0E_PAGE, error_code); return translate_res; } mem_tx_res =3D address_space_read(&address_space_memory, gpa, MEMT= XATTRS_UNSPECIFIED, --=20 2.53.0