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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1753115078; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zmjY5Y9EZxT/2HeR0ihNtiWignYjkZ2TZhM04W0MAJQ=; b=X/7wS2znJmcYRxoIFCPhnG6/Jd+bvAzTm9ZKlTxWXNCxuIU0bR6i9Yydmv9lUQW9Eh8QGF 2jUiMAi0z9vsR/fkrTye7eS6zgY226hVxKopqCKkeyC8nCxTFg7d15GgYiRfzIMwvQEmwv k0dpNBtm3n1yPpELRpLx8zL7oYiqeq8= X-MC-Unique: B7IXq15fOFGaMtwFzCzDlQ-1 X-Mimecast-MFC-AGG-ID: B7IXq15fOFGaMtwFzCzDlQ_1753115074 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Nicholas Piggin , Daniel Henrique Barboza , Glenn Miles , Michael Kowal , Gautam Menghani , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 41/50] ppc/xive2: Prevent pulling of pool context losing phys interrupt Date: Mon, 21 Jul 2025 18:22:24 +0200 Message-ID: <20250721162233.686837-42-clg@redhat.com> In-Reply-To: <20250721162233.686837-1-clg@redhat.com> References: <20250721162233.686837-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 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=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.926, 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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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: 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 @redhat.com) X-ZM-MESSAGEID: 1753115681787116600 From: Nicholas Piggin When the pool context is pulled, the shared pool/phys signal is reset, which loses the qemu irq if a phys interrupt was presented. Only reset the signal if a poll irq was presented. Signed-off-by: Nicholas Piggin Reviewed-by: Glenn Miles Reviewed-by: Michael Kowal Tested-by: Gautam Menghani Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-42-npiggin@g= mail.com Signed-off-by: C=C3=A9dric Le Goater --- hw/intc/xive2.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c index 7631d4886206..112397459afe 100644 --- a/hw/intc/xive2.c +++ b/hw/intc/xive2.c @@ -727,20 +727,22 @@ static uint64_t xive2_tm_pull_ctx(XivePresenter *xptr= , XiveTCTX *tctx, xive2_redistribute(xrtr, tctx, cur_ring); } } + + /* + * Lower external interrupt line of requested ring and below excep= t for + * USER, which doesn't exist. + */ + if (xive_nsr_indicates_exception(cur_ring, nsr)) { + if (cur_ring =3D=3D xive_nsr_exception_ring(cur_ring, nsr)) { + xive_tctx_reset_signal(tctx, cur_ring); + } + } } =20 if (xive2_router_get_config(xrtr) & XIVE2_VP_SAVE_RESTORE && do_save) { xive2_tctx_save_ctx(xrtr, tctx, ring, nvp_blk, nvp_idx); } =20 - /* - * Lower external interrupt line of requested ring and below except for - * USER, which doesn't exist. - */ - for (cur_ring =3D TM_QW1_OS; cur_ring <=3D ring; - cur_ring +=3D XIVE_TM_RING_SIZE) { - xive_tctx_reset_signal(tctx, cur_ring); - } return target_ringw2; } =20 --=20 2.50.1