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Tsirkin" , Wei Liu , Phil Dennis-Jordan , Peter Maydell , Zhao Liu , Paolo Bonzini Subject: [PATCH v3 19/37] whpx: i386: tighten APIC base validity check Date: Wed, 22 Apr 2026 23:42:07 +0200 Message-ID: <20260422214225.2242-20-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260422214225.2242-1-mohamed@unpredictable.fr> References: <20260422214225.2242-1-mohamed@unpredictable.fr> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDIyMDIxMSBTYWx0ZWRfXw0+xwYuvSptF RAv96mFmEuKyCO1ASgtbj7m39SwICKEAVzTzAqE9p03L5MhpIwIu6xwWPgX9MlRKps4nrTJexsn UWkMMp3vb77Zf+qOeH5bV1dO02MLg6LIlfXx1iHtBVFDLpJ1MHXe8wynnF/9Cxp31yVXP4Htmot Smfy2hT1ic+sNwk+2wp41l//HY37+T84fZuov135yecu7tRIfsCFwCELGA3tz0fBxGjgBd0TutT 7uZM4Unr5IozBJAXGQCv4d6L3p3CLtiIjBtkyD2H5rK/MpwEq2btx3MxP35fvsNW9FN9s7u9Thv wdHg1uBvNqjIsgSF++N7VfPuP6N7gPhhbvazqafFZ3nFV75yp6hOBlpGYnDYuE= X-Proofpoint-GUID: N_YulKQGm_yuOxyLLofGd58QM7H_uqQw X-Proofpoint-ORIG-GUID: N_YulKQGm_yuOxyLLofGd58QM7H_uqQw X-Authority-Info-Out: v=2.4 cv=VuUuwu2n c=1 sm=1 tr=0 ts=69e940eb cx=c_apl:c_pps:t_out a=YrL12D//S6tul8v/L+6tKg==:117 a=YrL12D//S6tul8v/L+6tKg==:17 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=uh2sygq7LFHjsVUyvz4A:9 Received-SPF: pass client-ip=57.103.76.54; 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, 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 eecc7f48ed..521a94355d 100644 --- a/target/i386/whpx/whpx-all.c +++ b/target/i386/whpx/whpx-all.c @@ -2078,6 +2078,9 @@ 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)