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Tsirkin" Subject: [PATCH v5 8/9] whpx: arm64: enable enlightenments if asked for Date: Sat, 7 Mar 2026 16:41:03 +0100 Message-ID: <20260307154104.84567-9-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260307154104.84567-1-mohamed@unpredictable.fr> References: <20260307154104.84567-1-mohamed@unpredictable.fr> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: KjKWIqQd49_yxwqcJvSsYhKs07y26Bv- X-Proofpoint-ORIG-GUID: KjKWIqQd49_yxwqcJvSsYhKs07y26Bv- X-Authority-Info-Out: v=2.4 cv=d5f4CBjE c=1 sm=1 tr=0 ts=69ac4725 cx=c_apl:c_pps:t_out a=bsP7O+dXZ5uKcj+dsLqiMw==:117 a=bsP7O+dXZ5uKcj+dsLqiMw==:17 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=rOdoSoqhRWX9tc6y9DEA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzA3MDE0OSBTYWx0ZWRfX30GYeKfIiC1J b8h1jc+FwgjnUUgF74GYnPL30bw5g4alHNAEmxEGqDAKtrLFiCZBNUzzO1xHOfVZoa6MQsPEXJa EaIaY/oKvgkh9ktDWl9rWzNJD9MwGi7gvyGy2sb2O9mm5zi54WmY1Nxg3w1vLgvmPxDF8i2/HtK trYHo2vQuATRocJbGfeZ9LtaesliWaq7Iqo/czvFvTAmAt6MaRKousqnhKtJnOGC+xDhhlYWDCv nfW3+VRqZJkfbxRufSKU7dDNR7P2lQHFkmP+lKK/SKPg76clD5/I+2uNl2jPDjAZpYQ7tOH4EAP Huc7UhO7xthFK3j11AQLshkkLzYOK2deDNEt8Rzhf4Zwizi+ZeF2R7kNjy58OE= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-07_05,2026-03-06_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 adultscore=0 spamscore=0 mlxlogscore=796 phishscore=0 clxscore=1030 lowpriorityscore=0 mlxscore=0 malwarescore=0 suspectscore=0 classifier=spam authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2603070149 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; 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charset="utf-8" Signed-off-by: Mohamed Mediouni --- target/arm/whpx/whpx-all.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/target/arm/whpx/whpx-all.c b/target/arm/whpx/whpx-all.c index c5b108166a..513551bec1 100644 --- a/target/arm/whpx/whpx-all.c +++ b/target/arm/whpx/whpx-all.c @@ -940,6 +940,43 @@ int whpx_accel_init(AccelState *as, MachineState *ms) goto error; } =20 + /* Enable synthetic processor features */ + WHV_SYNTHETIC_PROCESSOR_FEATURES_BANKS synthetic_features; + memset(&synthetic_features, 0, sizeof(WHV_SYNTHETIC_PROCESSOR_FEATURES= _BANKS)); + synthetic_features.BanksCount =3D 1; + + synthetic_features.Bank0.HypervisorPresent =3D 1; + synthetic_features.Bank0.Hv1 =3D 1; + synthetic_features.Bank0.AccessVpRunTimeReg =3D 1; + synthetic_features.Bank0.AccessPartitionReferenceCounter =3D 1; + synthetic_features.Bank0.AccessPartitionReferenceTsc =3D 1; + synthetic_features.Bank0.AccessHypercallRegs =3D 1; + synthetic_features.Bank0.AccessVpIndex =3D 1; + synthetic_features.Bank0.AccessHypercallRegs =3D 1; + synthetic_features.Bank0.TbFlushHypercalls =3D 1; + synthetic_features.Bank0.AccessSynicRegs =3D 1; + synthetic_features.Bank0.AccessSyntheticTimerRegs =3D 1; + synthetic_features.Bank0.AccessIntrCtrlRegs =3D 1; + synthetic_features.Bank0.SyntheticClusterIpi =3D 1; + synthetic_features.Bank0.DirectSyntheticTimers =3D 1; + + /* + * On ARM64, have enlightenments off by default + * as they're not needed for performance. + */ + if (whpx->hyperv_enlightenments_required) { + hr =3D whp_dispatch.WHvSetPartitionProperty( + whpx->partition, + WHvPartitionPropertyCodeSyntheticProcessorFeaturesBanks, + &synthetic_features, + sizeof(WHV_SYNTHETIC_PROCESSOR_FEATURES_BANKS)); + if (FAILED(hr)) { + error_report("WHPX: Failed to set synthetic features, hr=3D%08= lx", hr); + ret =3D -EINVAL; + goto error; + } + } + hr =3D whp_dispatch.WHvSetupPartition(whpx->partition); if (FAILED(hr)) { error_report("WHPX: Failed to setup partition, hr=3D%08lx", hr); --=20 2.50.1 (Apple Git-155)