From: Mohamed Mediouni <mohamed@unpredictable.fr>
To: qemu-devel@nongnu.org
Cc: Mohamed Mediouni <mohamed@unpredictable.fr>,
Zhao Liu <zhao1.liu@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Pedro Barbuda <pbarbuda@microsoft.com>
Subject: [PATCH v2 10/10] whpx: i386: set WHvX64RegisterInitialApicId
Date: Wed, 15 Apr 2026 15:29:26 +0200 [thread overview]
Message-ID: <20260415132926.58878-11-mohamed@unpredictable.fr> (raw)
In-Reply-To: <20260415132926.58878-1-mohamed@unpredictable.fr>
Keep Hyper-V aware of the initial APIC ID chosen.
Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>
---
target/i386/whpx/whpx-all.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c
index 9442c240b8..62fb9b5fc1 100644
--- a/target/i386/whpx/whpx-all.c
+++ b/target/i386/whpx/whpx-all.c
@@ -2398,6 +2398,11 @@ int whpx_init_vcpu(CPUState *cpu)
goto error;
}
+ if (!whpx_irqchip_in_kernel()) {
+ WHV_REGISTER_VALUE apic_id = {.Reg64 = x86_cpu->apic_state->initial_apic_id};
+ whpx_set_reg(cpu, WHvX64RegisterInitialApicId, apic_id);
+ }
+
/*
* vcpu's TSC frequency is either specified by user, or use the value
* provided by Hyper-V if the former is not present. In the latter case, we
--
2.50.1 (Apple Git-155)
prev parent reply other threads:[~2026-04-15 13:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-15 13:29 [PATCH v2 00/10] whpx: i386: Some more changes Mohamed Mediouni
2026-04-15 13:29 ` [PATCH v2 01/10] whpx: i386: set apicbase value only on success Mohamed Mediouni
2026-04-15 13:29 ` [PATCH v2 02/10] whpx: i386: unknown MSR configurability Mohamed Mediouni
2026-04-15 13:29 ` [PATCH v2 03/10] whpx: i386: enable GuestIdleReg enlightenment Mohamed Mediouni
2026-04-15 13:29 ` [PATCH v2 04/10] whpx: i386: tighten APIC base validity check Mohamed Mediouni
2026-04-15 13:29 ` [PATCH v2 05/10] whpx: i386: ignore vpassist when kernel-irqchip=off Mohamed Mediouni
2026-04-15 13:29 ` [PATCH v2 06/10] target: i386: HLT type that ignores EFLAGS.IF Mohamed Mediouni
2026-04-15 13:29 ` [PATCH v2 07/10] whpx: i386: add HV_X64_MSR_GUEST_IDLE when !kernel-irqchip Mohamed Mediouni
2026-04-15 13:29 ` [PATCH v2 08/10] whpx: i386: one more CPUID Mohamed Mediouni
2026-04-15 13:29 ` [PATCH v2 09/10] whpx: i386: some x2APIC awareness Mohamed Mediouni
2026-04-15 13:29 ` Mohamed Mediouni [this message]
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