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Wed, 16 Sep 2026 00:32:31 -0700 (PDT) From: Anton Blanchard To: richard.henderson@linaro.org, pbonzini@redhat.com, qemu-devel@nongnu.org Cc: Anton Blanchard Subject: [PATCH] accel/tcg: Fix TLB_MMIO check in tlb_plugin_lookup() Date: Wed, 16 Sep 2026 07:32:09 +0000 Message-Id: <20260916073209.1791732-1-antonb@tenstorrent.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 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=lists1p.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:31::c; envelope-from=antonb@tenstorrent.com; helo=mail-oo2-x0c.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, 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: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @tenstorrent.com) X-ZM-MESSAGEID: 1789543997631158500 Content-Type: text/plain; charset="utf-8" Update tlb_plugin_lookup() to check TLB_MMIO in slow_flags when TLB_FORCE_SLOW is set. Signed-off-by: Anton Blanchard --- accel/tcg/cputlb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index 7f7c208ba1..7150d6d126 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -1593,7 +1593,8 @@ bool tlb_plugin_lookup(CPUState *cpu, vaddr addr, int= mmu_idx, data->phys_addr =3D full->phys_addr | (addr & ~TARGET_PAGE_MASK); =20 /* We must have an iotlb entry for MMIO */ - if (tlb_addr & TLB_MMIO) { + if ((tlb_addr & TLB_FORCE_SLOW) && + (full->slow_flags[access_type] & TLB_MMIO)) { MemoryRegionSection *section =3D full->section; data->is_io =3D true; data->mr =3D section->mr; --=20 2.34.1