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Tsirkin" , Peter Maydell , Zhao Liu Subject: [PATCH v2 19/38] whpx: i386: tighten APIC base validity check Date: Mon, 20 Apr 2026 12:42:29 +0200 Message-ID: <20260420104248.86702-20-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260420104248.86702-1-mohamed@unpredictable.fr> References: <20260420104248.86702-1-mohamed@unpredictable.fr> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authority-Info-Out: v=2.4 cv=ftDRpV4f c=1 sm=1 tr=0 ts=69e6035e cx=c_apl:c_pps:t_out a=qkKslKyYc0ctBTeLUVfTFg==:117 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=uh2sygq7LFHjsVUyvz4A:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDIwMDEwNCBTYWx0ZWRfX1FHoEmDpH7V/ VFmEFeUuTITSMP0wWMp4OOtooFBEOzv8E8lDXCVrcG5wLgyI6i6qKURP9pj/jBw/dIpO3MHlFqD fhgGdW1GZOKB+3Cv5W6CrzgWFKEbZLzceEpDsXaYqpG6CdkQ55LFjXiT0TriWy0wCCl1XtkGq/Q JlIbZ1q7l3ngg5RoRByCtWkpIh2A1aUkww36s2I+oU837JMfjYPOF0eaeASwBJEVsXmMCMpKIwf 2GXxOeV0wCOHyn95gso3IRrvfxvf+04eFmVpga4MpOvM+PQ6GB4ekrOA+qOsvqjpRGOljz86yGT tyOA40RxM02qvllPBj2lOHQHWfDyA58dfc1W3TNeoG28nag/NfMh9E1bM8cwqE= X-Proofpoint-GUID: bI-YLqzpCtIXz5yr_ePGPk888FbikWDV X-Proofpoint-ORIG-GUID: bI-YLqzpCtIXz5yr_ePGPk888FbikWDV 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=2026-04-20_02,2026-04-17_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 suspectscore=0 spamscore=0 clxscore=1030 mlxscore=0 mlxlogscore=687 lowpriorityscore=0 bulkscore=0 malwarescore=0 classifier=spam authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2604200104 Received-SPF: pass client-ip=57.103.75.16; envelope-from=mohamed@unpredictable.fr; helo=outbound.ms.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, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@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-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Signed-off-by: Mohamed Mediouni --- target/i386/whpx/whpx-all.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c index f856022a87..f31eabce37 100644 --- a/target/i386/whpx/whpx-all.c +++ b/target/i386/whpx/whpx-all.c @@ -1993,6 +1993,9 @@ int whpx_vcpu_run(CPUState *cpu) if (vcpu->exit_ctx.MsrAccess.MsrNumber == MSR_IA32_APICBASE) { is_known_msr = 1; + if (val & MSR_IA32_APICBASE_RESERVED) { + x86_emul_raise_exception(&X86_CPU(cpu)->env, EXCP0D_GPF, 0); + } if (!vcpu->exit_ctx.MsrAccess.AccessInfo.IsWrite) { /* Read path unreachable on Hyper-V */ abort(); -- 2.50.1 (Apple Git-155)