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Tsirkin" , Wei Liu , Phil Dennis-Jordan , Peter Maydell , Zhao Liu , Paolo Bonzini Subject: [PATCH v3 18/37] whpx: i386: enable GuestIdleReg enlightenment Date: Wed, 22 Apr 2026 23:42:06 +0200 Message-ID: <20260422214225.2242-19-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-Authority-Info-Out: v=2.4 cv=bpRBxUai c=1 sm=1 tr=0 ts=69e940ea 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=givlr1pFTcEyfNb0yRoA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDIyMDIxMiBTYWx0ZWRfX0QmNiMeW/qAE tI+c/FYi1FEAat5a7H8tWqK/qUgB8KzgCHTG25xLYymV612oHj4ROYF/VANI1Nr8RqtYcI7bbcg eNtWTKcV5eNcnP9g+XrZjX8AhLXBi8Qx8qcvjF4RupvYCt60Lo4qEiIU/wthpoqmp8IOaX/kreN XBgByt+GxSi7AWsXRGZ84nw8egb5pZOGfLp8M7COb1Lcd7SyntindFyy0ObswTaetkbk6o8POFz Yt5wPmoN7Y4A0tYAIp/AF99Z29n6TnPckbtQ2Cs085s6kH/AHHUVo3wYKTv7M4+mYF1q+Iocls6 yblJ7Fn3MFwU8ezPYG51odS+nUf31QErhR9i+5VBCahaYdUHG6VCGrgtKUtc7k= X-Proofpoint-GUID: gC0gTZkBj92reTbumBd6Qu_K5PlDPMm3 X-Proofpoint-ORIG-GUID: gC0gTZkBj92reTbumBd6Qu_K5PlDPMm3 Received-SPF: pass client-ip=57.103.76.10; envelope-from=mohamed@unpredictable.fr; helo=outbound.st.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, 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 This corresponds to HV_X64_MSR_GUEST_IDLE (0x400000f0). This enlightenment is only available by the HV when using the Hyper-V LAPIC. Signed-off-by: Mohamed Mediouni --- target/i386/whpx/whpx-all.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c index 7f0ad6a24f..eecc7f48ed 100644 --- a/target/i386/whpx/whpx-all.c +++ b/target/i386/whpx/whpx-all.c @@ -2806,6 +2806,7 @@ int whpx_accel_init(AccelState *as, MachineState *ms) synthetic_features.Bank0.AccessIntrCtrlRegs = 1; synthetic_features.Bank0.SyntheticClusterIpi = 1; synthetic_features.Bank0.DirectSyntheticTimers = 1; + synthetic_features.Bank0.AccessGuestIdleReg = 1; /* * These technically work without the Hyper-V LAPIC * but behave oddly for multi-core VMs. -- 2.50.1 (Apple Git-155)