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Thu, 10 Sep 2026 21:57:01 -0700 (PDT) Received: from pve-server.rlab ([49.205.216.49]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-33ba4e9a3casm2837953eec.12.2026.09.10.21.56.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Sep 2026 21:57:01 -0700 (PDT) From: "Ritesh Harjani (IBM)" To: linuxppc-dev@lists.ozlabs.org Cc: Michael Ellerman , Christophe Leroy , Anushree Mathur , Venkat Rao Bagalkote , Harsh Prateek Bora , Madhavan Srinivasan , Shrikanth Hegde , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, "Ritesh Harjani (IBM)" Subject: [RFC 0/3] KVM: PPC: BE guest-exit fixes and nestedv2 vCPU limit Date: Fri, 11 Sep 2026 10:26:44 +0530 Message-Id: X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit These issues were identified while adding kvm powerpc selftests infrastructure support [1]. Patch-1 and Patch-2 were identified while running the selftests on Qemu+TCG+powernv+BE, while Patch-3 can also be reproduced on a real pseries LPAR with nestedv2 capabilities. [1]: https://lore.kernel.org/linuxppc-dev/cover.1789097569.git.ritesh.list@gmail.com/ Ritesh Harjani (IBM) (3): KVM: PPC: Book3S HV: Read EX_DSISR as a 32-bit field on guest exit KVM: PPC: Don't call __ffs() on an empty pending_exceptions bitmap KVM: PPC: Book3S HV nestedv2: cap max vcpus to PAPR limit arch/powerpc/include/asm/kvm_host.h | 1 + arch/powerpc/kvm/book3s.c | 22 ++++++++++++---------- arch/powerpc/kvm/book3s_hv_p9_entry.c | 13 +++++++++++-- arch/powerpc/kvm/powerpc.c | 6 ++++++ 4 files changed, 30 insertions(+), 12 deletions(-) -- 2.39.5