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charset="utf-8" Move WHvCapabilityCodeProcessorPerfmonFeatures queries as that's how we distinguish if on a legacy OS. Now that Windows guests are booting, disable kernel-irqchip=3Don by default for Windows 10 when the PIC is enabled. Signed-off-by: Mohamed Mediouni --- target/i386/whpx/whpx-all.c | 70 +++++++++++++++++++++---------------- 1 file changed, 40 insertions(+), 30 deletions(-) diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c index db2e85514c..b8ef636c09 100644 --- a/target/i386/whpx/whpx-all.c +++ b/target/i386/whpx/whpx-all.c @@ -22,6 +22,7 @@ #include "qemu/main-loop.h" #include "hw/core/boards.h" #include "hw/intc/ioapic.h" +#include "hw/i386/x86.h" #include "hw/i386/apic_internal.h" #include "qemu/error-report.h" #include "qapi/error.h" @@ -2354,6 +2355,13 @@ int whpx_accel_init(AccelState *as, MachineState *ms) 0x8000000A, 0x80000021, 0x80000022, 0xC0000000, 0xC0000001}; UINT32 cpuidExitList_legacy_os[] =3D {1, 0x40000000, 0x40000001, 0x400= 00010}; =20 + X86MachineState *x86ms =3D X86_MACHINE(ms); + bool pic_enabled =3D false; + + if (x86ms->pic =3D=3D ON_OFF_AUTO_ON || x86ms->pic =3D=3D ON_OFF_AUTO_= AUTO) { + pic_enabled =3D true; + } + whpx =3D &whpx_global; =20 if (!init_whp_dispatch()) { @@ -2425,6 +2433,35 @@ int whpx_accel_init(AccelState *as, MachineState *ms) goto error; } =20 + /* Enable supported performance monitoring capabilities */ + hr =3D whp_dispatch.WHvGetCapability( + WHvCapabilityCodeProcessorPerfmonFeatures, &perfmon_features, + sizeof(WHV_PROCESSOR_PERFMON_FEATURES), &whpx_cap_size); + /* + * Relying on this is a crutch to maintain Windows 10 support. + * + * WHvCapabilityCodeProcessorPerfmonFeatures and + * WHvPartitionPropertyCodeSyntheticProcessorFeaturesBanks + * are implemented starting from Windows Server 2022 (build 20348). + */ + if (FAILED(hr)) { + warn_report("WHPX: Failed to get performance " + "monitoring features, hr=3D%08lx", hr); + is_modern_os =3D false; + } else { + hr =3D whp_dispatch.WHvSetPartitionProperty( + whpx->partition, + WHvPartitionPropertyCodeProcessorPerfmonFeatures, + &perfmon_features, + sizeof(WHV_PROCESSOR_PERFMON_FEATURES)); + if (FAILED(hr)) { + error_report("WHPX: Failed to set performance " + "monitoring features, hr=3D%08lx", hr); + ret =3D -EINVAL; + goto error; + } + } + /* * Error out if WHP doesn't support apic emulation and user is requiri= ng * it. @@ -2437,8 +2474,9 @@ int whpx_accel_init(AccelState *as, MachineState *ms) goto error; } =20 - if (whpx->kernel_irqchip_allowed && features.LocalApicEmulation && - whp_dispatch.WHvSetVirtualProcessorInterruptControllerState2) { + if (whpx->kernel_irqchip_allowed && !(whpx_is_legacy_os() && pic_enabl= ed + && !whpx->kernel_irqchip_required) && features.LocalApicEmulation + && whp_dispatch.WHvSetVirtualProcessorInterruptControllerState2) { WHV_X64_LOCAL_APIC_EMULATION_MODE mode =3D WHvX64LocalApicEmulationModeX2Apic; hr =3D whp_dispatch.WHvSetPartitionProperty( @@ -2497,34 +2535,6 @@ int whpx_accel_init(AccelState *as, MachineState *ms) goto error; } =20 - /* Enable supported performance monitoring capabilities */ - hr =3D whp_dispatch.WHvGetCapability( - WHvCapabilityCodeProcessorPerfmonFeatures, &perfmon_features, - sizeof(WHV_PROCESSOR_PERFMON_FEATURES), &whpx_cap_size); - /* - * Relying on this is a crutch to maintain Windows 10 support. - * - * WHvCapabilityCodeProcessorPerfmonFeatures and - * WHvPartitionPropertyCodeSyntheticProcessorFeaturesBanks - * are implemented starting from Windows Server 2022 (build 20348). - */ - if (FAILED(hr)) { - warn_report("WHPX: Failed to get performance " - "monitoring features, hr=3D%08lx", hr); - is_modern_os =3D false; - } else { - hr =3D whp_dispatch.WHvSetPartitionProperty( - whpx->partition, - WHvPartitionPropertyCodeProcessorPerfmonFeatures, - &perfmon_features, - sizeof(WHV_PROCESSOR_PERFMON_FEATURES)); - if (FAILED(hr)) { - error_report("WHPX: Failed to set performance " - "monitoring features, hr=3D%08lx", hr); - ret =3D -EINVAL; - goto error; - } - } =20 /* Enable synthetic processor features */ WHV_SYNTHETIC_PROCESSOR_FEATURES_BANKS synthetic_features; --=20 2.50.1 (Apple Git-155)