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Sun, 17 Mar 2024 23:14:38 +0100 From: Sven Schnelle To: Richard Henderson Cc: qemu-devel@nongnu.org, Helge Deller , Sven Schnelle Subject: [PATCH 4/7] target/hppa: exit tb on flush cache instructions Date: Sun, 17 Mar 2024 23:14:28 +0100 Message-ID: <20240317221431.251515-5-svens@stackframe.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240317221431.251515-1-svens@stackframe.org> References: <20240317221431.251515-1-svens@stackframe.org> MIME-Version: 1.0 Received-SPF: pass client-ip=23.83.223.97; envelope-from=svens@stackframe.org; helo=kudu.cherry.relay.mailchannels.net 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, DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org When the guest modifies the tb it is currently executing from, it executes a fic instruction. Exit the tb on such instruction, otherwise we might execute stale code. Signed-off-by: Sven Schnelle Reviewed-by: Helge Deller --- target/hppa/translate.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/target/hppa/translate.c b/target/hppa/translate.c index 8ba31567e8..58d7ec1ade 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -1940,6 +1940,7 @@ static void do_page_zero(DisasContext *ctx) static bool trans_nop(DisasContext *ctx, arg_nop *a) { cond_free(&ctx->null_cond); + ctx->base.is_jmp = DISAS_IAQ_N_STALE; return true; } @@ -2290,6 +2291,7 @@ static bool trans_nop_addrx(DisasContext *ctx, arg_ldst *a) save_gpr(ctx, a->b, dest); } cond_free(&ctx->null_cond); + ctx->base.is_jmp = DISAS_IAQ_N_STALE; return true; }