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Mon, 09 Nov 2026 00:41:17 +0000 (UTC) From: Mohamed Mediouni To: qemu-devel@nongnu.org Cc: Pedro Barbuda , Pierrick Bouvier , Peter Maydell , Mohamed Mediouni , qemu-arm@nongnu.org Subject: [PULL 09/13] target/arm/whpx: handle processor reset Date: Sun, 8 Nov 2026 17:41:04 -0700 Message-ID: <20261109004108.85808-10-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20261109004108.85808-1-mohamed@unpredictable.fr> References: <20261109004108.85808-1-mohamed@unpredictable.fr> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: QvaVmyHLKX6Pv1JfY4KDN-DQynxhsNXV X-Authority-Info-Out: v=2.4 cv=LbwxKzfi c=1 sm=1 tr=0 ts=6af116ae cx=c_apl:c_pps:t_out a=2G65uMN5HjSv0sBfM2Yj2w==:117 a=2G65uMN5HjSv0sBfM2Yj2w==:17 a=zJRp6_cAMcgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=loPyruWHUH_f1C729x8A:9 X-Proofpoint-GUID: QvaVmyHLKX6Pv1JfY4KDN-DQynxhsNXV X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTA5MDAwMSBTYWx0ZWRfXyyGtcXS0wBiL oNTPgpCHj58tSmDkxla2BqCEB783wOnQcfzWaOIPoubnFh9NK3yfyvYOxhDnCed17OfYTOfxBuG BX6bHnNChuiHynRvz01LMQpS/O7SUL+tIzXNVA1qv4qfrZsQMwKyoeTRd3Zd+ipmCcEAbzY48uR 4b8yjJy8JySPNapLwQBiDG+vO2TiaW9sv16GKKvQZlCE376wsDFvUXaBYFzmFHNhaIK6e2coR5o jmJPUFqK0rPNlz/mmMijK9hsmb7QS/TlHNkceUPJo/eRWadrOO+s1WfiYji5aQ7ale3ll44zPQ1 J9X0h+Dy9ubq5hvjlH2OasglkL6vbOb1a7dUEA77ZNK1TXVqtXUnW0zXKKz6ao= X-JNJ: AAAAAAABLWmhJ6rvd+F/aDCZcicJwh3haNuE0tUu6d9Mup1sGQ7XJqIri9govgaoZubpOE 5iv/1sY8DK47Xjbt/a/d8rMmeXVH4FGb8xjAyz6Wij3yY7Df9SwIR6bVkqhWy9ZE/3hVh/ DhlfH2KgvyvkLYIwNOSKHb/67wsOH7+HiK62iddfVA+WPltDTOTNec0C6e5qXj2Saxn4Vs b76mAC0R1XIqHLm8YMu7XJ43xG/XhXjblUYF5iOluROt2Zj9CF5Un70M6mdoSCpniDOYho ylRdXZcUpLqE6aIMsURXXZauoLjTNe4fIwFTvwfXqYfNTAOHBu9o1VA/JIJiXcwEbfSSjG e/YkbkEA1QLbSzjaQCmO0NJHg1J9cZ6/d27R4TNg1mFNV6q91T4TQLWeosvlPfJxAGOTht Vr3kXf4mVSdXmEphkcU+M0BWolKhJaC1AqH3kYmUVNMUrdhN3auNWqNpjvTvAd7338FBdo TR27rYyEdECG+12BE/mbSExoIpsI9xFmMD0PRG1Y9HeZ1r+BJKoRlUHay9GGBgz0L6J9xq ouchzmiJAKpUlYXAsXbsTeOdeKbPEZhOfl8vzCWl0/xEF2yPZCcarQB++9bv+MdvMtd66K IFPRy/3VmkxDwPcepu9jddLAE0EN/QzVeWqlmwSuoE7KCZJW4VqPYv58GJZgkzAxvCjss/ xWJ+bLSaNt0TEKXgQuo4y3e0JbXjIJpyJ7xmjjNX02GjKi2WJuyUqFiBQ9NBMBaQo9F9lC it9SJil09c0MxH1Wab6P8Ex+cgdm+xLLZoAVE= Received-SPF: pass client-ip=2a01:b747:3005:200::d; envelope-from=mohamed@unpredictable.fr; helo=outbound.ci.icloud.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_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: qemu development List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Move WHvResetPartition to where it's effective on multi-core configurations. Signed-off-by: Mohamed Mediouni --- target/arm/whpx/whpx-all.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/target/arm/whpx/whpx-all.c b/target/arm/whpx/whpx-all.c index ded42c980b..b702dfa8e6 100644 --- a/target/arm/whpx/whpx-all.c +++ b/target/arm/whpx/whpx-all.c @@ -471,8 +471,6 @@ int whpx_vcpu_run(CPUState *cpu) if (arm_cpu->power_state != PSCI_OFF) { whpx_psci_cpu_off(arm_cpu); } - /* Partition-wide reset, to reset state for reboots to succeed. */ - whp_dispatch.WHvResetPartition(whpx->partition); bql_unlock(); break; case WHvRunVpExitReasonNone: @@ -573,6 +571,14 @@ void whpx_set_registers(CPUState *cpu, WHPXStateLevel level) assert(cpu_is_stopped(cpu) || qemu_cpu_is_self(cpu)); + /* Assumes that cpu_synchronize_all_post_reset() runs cpu 0 first. */ + if (level == WHPX_LEVEL_RESET_STATE && cpu->cpu_index == 0) { + hr = whp_dispatch.WHvResetPartition(whpx->partition); + if (FAILED(hr)) { + error_report("WHPX: Failed to reset partition, hr=%08lx", hr); + } + } + for (i = 0; i < ARRAY_SIZE(whpx_reg_match); i++) { val.Reg64 = *(uint64_t *)((char *)env + whpx_reg_match[i].offset); whpx_set_reg(cpu, whpx_reg_match[i].reg, val); -- 2.54.0 (Apple Git-157)