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charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::42d; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1634093702137100001 Use the new cpu_loop_exit_sigbus for atomic_mmu_lookup, which has access to complete alignment info from the TCGMemOpIdx arg. Reviewed-by: Alex Benn=C3=A9e Signed-off-by: Richard Henderson --- accel/tcg/user-exec.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index 83ed76cef9..5dcd58c6d5 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -547,11 +547,22 @@ static void *atomic_mmu_lookup(CPUArchState *env, tar= get_ulong addr, MemOpIdx oi, int size, int prot, uintptr_t retaddr) { + MemOp mop =3D get_memop(oi); + int a_bits =3D get_alignment_bits(mop); + void *ret; + + /* Enforce guest required alignment. */ + if (unlikely(addr & ((1 << a_bits) - 1))) { + MMUAccessType t =3D prot =3D=3D PAGE_READ ? MMU_DATA_LOAD : MMU_DA= TA_STORE; + cpu_loop_exit_sigbus(env_cpu(env), addr, t, retaddr); + } + /* Enforce qemu required alignment. */ if (unlikely(addr & (size - 1))) { cpu_loop_exit_atomic(env_cpu(env), retaddr); } - void *ret =3D g2h(env_cpu(env), addr); + + ret =3D g2h(env_cpu(env), addr); set_helper_retaddr(retaddr); return ret; } --=20 2.25.1