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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1753115002; 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=jnnN5+GtdpuH7z4EFdFOk5KedjDZ6TIb4J90RWfBUp0=; b=jWEVvqAWW8G4PwLgkszHM3rNJizUHaxr6LTMBL4OgVbRxNVwWmAHTaqoRFECwWCS+mxrnK 0WYfjxWWHt1+pTzES8HM/Xr7f1p08VIzH5RkwQnynqeSdPuMG9A83/bDNTH3NU/SWRTz9D iOc4TTqaItlLvBJ9+W2IMeNdKuHNARY= X-MC-Unique: -czOhk3vN5-2bbkpgk-row-1 X-Mimecast-MFC-AGG-ID: -czOhk3vN5-2bbkpgk-row_1753114995 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Nicholas Piggin , Daniel Henrique Barboza , Glenn Miles , Michael Kowal , Caleb Schlossin , Gautam Menghani , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 13/50] ppc/xive: tctx_notify should clear the precluded interrupt Date: Mon, 21 Jul 2025 18:21:56 +0200 Message-ID: <20250721162233.686837-14-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: 1753115163475116600 From: Nicholas Piggin If CPPR is lowered to preclude the pending interrupt, NSR should be cleared and the qemu_irq should be lowered. This avoids some cases of supurious interrupts. Signed-off-by: Nicholas Piggin Reviewed-by: Glenn Miles Reviewed-by: Michael Kowal Reviewed-by: Caleb Schlossin Tested-by: Gautam Menghani Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-14-npiggin@g= mail.com Signed-off-by: C=C3=A9dric Le Goater --- hw/intc/xive.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/intc/xive.c b/hw/intc/xive.c index bc829bebe9d0..a0a60a24f510 100644 --- a/hw/intc/xive.c +++ b/hw/intc/xive.c @@ -110,6 +110,9 @@ void xive_tctx_notify(XiveTCTX *tctx, uint8_t ring, uin= t8_t group_level) regs[TM_IPB], alt_regs[TM_PIPR], alt_regs[TM_CPPR], alt_regs[TM_NSR]); qemu_irq_raise(xive_tctx_output(tctx, ring)); + } else { + alt_regs[TM_NSR] =3D 0; + qemu_irq_lower(xive_tctx_output(tctx, ring)); } } =20 --=20 2.50.1