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Tsirkin" , Roman Bolshakov , qemu-arm@nongnu.org, Ani Sinha , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Yanan Wang , Akihiko Odaki , Marcel Apfelbaum , Pedro Barbuda , Richard Henderson , Paolo Bonzini , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Shannon Zhao , Igor Mammedov , Cameron Esfahani , Alexander Graf , Peter Maydell , Eduardo Habkost , Phil Dennis-Jordan , Pierrick Bouvier Subject: [PATCH v18 22/22] whpx: arm64: add partition-wide reset on the reboot path Date: Tue, 27 Jan 2026 19:28:02 +0100 Message-ID: <20260127182805.73212-23-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260127182805.73212-1-mohamed@unpredictable.fr> References: <20260127182805.73212-1-mohamed@unpredictable.fr> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-ORIG-GUID: aoY0ojfSOH2B603rE9d5UVxMpkrYOxrc X-Authority-Info-Out: v=2.4 cv=Dewaa/tW c=1 sm=1 tr=0 ts=69790423 cx=c_apl:c_apl_out:c_pps a=9OgfyREA4BUYbbCgc0Y0oA==:117 a=9OgfyREA4BUYbbCgc0Y0oA==:17 a=vUbySO9Y5rIA:10 a=VkNPw1HP01LnGYTKEx00:22 a=KKAkSRfTAAAA:8 a=h5GvOLqLgfJ3vAEETv4A:9 a=NqO74GWdXPXpGKcKHaDJD/ajO6k=:19 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTI3MDE1MCBTYWx0ZWRfX29WY6hwjm1Yj btZIePzm08J63qf+lcQlkaySbfk6Zly7JVcKO+aIaPXEC0mIrBQ40q557EQhmxs8pFMBYn2tO9u IR6XAdBFlWt/tL98IvbZn9vKoNuoq+Miw5j2CxRA0+1rX1U89I0VegHLTS3jc3s2klS3/sj91LP kwajWASxa1Qd9g5qKzqRH4txU2kpXLlM7yFUc2pLLp0SBYYt42vw8iFiVd6EN+TMzyZ22yBhtld De3SMKvHeq1a1mKms5FsHuvws9IfvzfAk/ZqiKPprKM+a0nTAZoVXQSAADGIWjQMDO6vPjv76jD UwzrEN8lJfnMXNoDLxr X-Proofpoint-GUID: aoY0ojfSOH2B603rE9d5UVxMpkrYOxrc X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-01-27_04,2026-01-27_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 malwarescore=0 mlxscore=0 clxscore=1030 spamscore=0 suspectscore=0 mlxlogscore=999 bulkscore=0 adultscore=0 classifier=spam authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2601270150 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 client-ip=57.103.71.19; envelope-from=mohamed@unpredictable.fr; helo=outbound.mr.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, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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: qemu development 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: 1769538931726154100 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 Reviewed-by: Akihiko Odaki --- 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 8ded54a39b..ad6ade223e 100644 --- a/include/system/whpx-internal.h +++ b/include/system/whpx-internal.h @@ -86,6 +86,8 @@ void whpx_apic_get(APICCommonState *s); X(HRESULT, WHvSetVirtualProcessorInterruptControllerState2, \ (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, PVOID State, \ UINT32 StateSize)) \ + X(HRESULT, WHvResetPartition, \ + (WHV_PARTITION_HANDLE Partition)) \ =20 #define LIST_WINHVEMULATION_FUNCTIONS(X) \ X(HRESULT, WHvEmulatorCreateEmulator, (const WHV_EMULATOR_CALLBACKS* Cal= lbacks, WHV_EMULATOR_HANDLE* Emulator)) \ diff --git a/target/arm/whpx/whpx-all.c b/target/arm/whpx/whpx-all.c index 55773555b7..444f8c3d42 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)