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Tsirkin" , Akihiko Odaki , Eduardo Habkost , Mads Ynddal , Roman Bolshakov , Peter Xu , Shannon Zhao , Pedro Barbuda , Peter Maydell , Cameron Esfahani , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Igor Mammedov , Zhao Liu , Phil Dennis-Jordan , qemu-arm@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Ani Sinha , Paolo Bonzini , Alexander Graf , Marcel Apfelbaum , Richard Henderson , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Pierrick Bouvier Subject: [PATCH v13 27/28] whpx: arm64: add partition-wide reset on the reboot path Date: Tue, 30 Dec 2025 01:03:59 +0100 Message-ID: <20251230000401.72124-28-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251230000401.72124-1-mohamed@unpredictable.fr> References: <20251230000401.72124-1-mohamed@unpredictable.fr> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: h8BJLb8lvuiHd-jAxB195h5MGXafy5EQ X-Proofpoint-ORIG-GUID: h8BJLb8lvuiHd-jAxB195h5MGXafy5EQ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjI5MDIyMiBTYWx0ZWRfXzqKwyY/1iDuS V22xOHPdURX1sI6uZmJBx3X4iaa9AsqgfV7YgwZD9EkR4Huki/HllgK+AV04MnRu9For3dIe6LA MVSYf2tc3iiuteKk7VutEAELt48RajLCkm8AmW/2154CoVVTJWPk89AAQMnAWznHsyE377Pk4+G Qz2vLhA5x6VY/2Hr1V2nrtWGVHangBfAo8t+yUkB6fdObEiwViiaEE8Nlhm2hlswpG9poEZ7lh9 2+m3W2ZTFk4NkYZvnr9AxqQM6wxS2dMoaEpvkXcUDyowcQRO/eWYY4KhAFBxODlkMd/E5kmNdV/ 5RA8zGJ5MNTE9dXEQuc X-Authority-Info: v=2.4 cv=SYz6t/Ru c=1 sm=1 tr=0 ts=69531784 cx=c_apl:c_pps a=YrL12D//S6tul8v/L+6tKg==:117 a=YrL12D//S6tul8v/L+6tKg==:17 a=wP3pNCr1ah4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=KKAkSRfTAAAA:8 a=h5GvOLqLgfJ3vAEETv4A:9 a=NqO74GWdXPXpGKcKHaDJD/ajO6k=:19 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-29_07,2025-12-29_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 malwarescore=0 bulkscore=0 suspectscore=0 spamscore=0 mlxscore=0 mlxlogscore=879 adultscore=0 clxscore=1030 classifier=spam authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2512290222 X-JNJ: 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 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 (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=57.103.76.73; envelope-from=mohamed@unpredictable.fr; helo=outbound.st.icloud.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=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 @unpredictable.fr) X-ZM-MESSAGEID: 1767053639025158500 Content-Type: text/plain; charset="utf-8" This resets non-architectural state to allow for reboots to succeed. Signed-off-by: Mohamed Mediouni Reviewed-by: Pierrick Bouvier --- include/system/whpx-internal.h | 2 ++ target/arm/whpx/whpx-all.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/include/system/whpx-internal.h b/include/system/whpx-internal.h index 9e872e5f56..802fa87765 100644 --- a/include/system/whpx-internal.h +++ b/include/system/whpx-internal.h @@ -94,6 +94,8 @@ void whpx_apic_get(APICCommonState *s); (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, \ WHV_VIRTUAL_PROCESSOR_STATE_TYPE StateType, PVOID Buffer, \ UINT32 BufferSizeInBytes)) \ + X(HRESULT, WHvResetPartition, \ + (WHV_PARTITION_HANDLE Partition)) \ =20 =20 #define LIST_WINHVEMULATION_FUNCTIONS(X) \ diff --git a/target/arm/whpx/whpx-all.c b/target/arm/whpx/whpx-all.c index 2e5ece45ea..0e80ef771c 100644 --- a/target/arm/whpx/whpx-all.c +++ b/target/arm/whpx/whpx-all.c @@ -497,6 +497,8 @@ int whpx_vcpu_run(CPUState *cpu) if (arm_cpu->power_state !=3D 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: --=20 2.50.1 (Apple Git-155)