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Thu, 15 May 2025 16:40:10 -0700 (PDT) Received: from localhost ([118.209.229.237]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b26eaf5a0d0sm473374a12.14.2025.05.15.16.40.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 May 2025 16:40:09 -0700 (PDT) Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Fri, 16 May 2025 09:40:03 +1000 Message-Id: Cc: , =?utf-8?q?Fr=C3=A9d=C3=A9ric_Barrat?= , "Glenn Miles" , "Caleb Schlossin" Subject: Re: [PATCH 28/50] ppc/xive: Change presenter .match_nvt to match not present From: "Nicholas Piggin" To: "Mike Kowal" , X-Mailer: aerc 0.19.0 References: <20250512031100.439842-1-npiggin@gmail.com> <20250512031100.439842-29-npiggin@gmail.com> <66c54651-e743-4da7-ba78-e2fd41a11c1d@linux.ibm.com> In-Reply-To: <66c54651-e743-4da7-ba78-e2fd41a11c1d@linux.ibm.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::433; envelope-from=npiggin@gmail.com; helo=mail-pf1-x433.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, FREEMAIL_FROM=0.001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Thu May 15, 2025 at 5:54 AM AEST, Mike Kowal wrote: > > On 5/11/2025 10:10 PM, Nicholas Piggin wrote: >> Have the match_nvt method only perform a TCTX match but don't present >> the interrupt, the caller presents. This has no functional change, but >> allows for more complicated presentation logic after matching. > > > I always found the count meaning less since we do not support the XIVE=20 > Histogram... Right, nothing gets done with it at the moment which is confusing. We could remove it. Histogram looks like a LRU type selection as opposed to this round-robin we do?=20 Thanks, Nick