From: Yunhong Jiang <yunhong.jiang@linux.intel.com>
To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org,
decui@microsoft.com, rafael@kernel.org, lenb@kernel.org,
kirill.shutemov@linux.intel.com, yunhong.jiang@linux.intel.com
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-hyperv@vger.kernel.org, linux-acpi@vger.kernel.org
Subject: [PATCH v2 9/9] x86/hyperv: Use wakeup mailbox for VTL2 guests if available
Date: Fri, 23 Aug 2024 16:23:27 -0700 [thread overview]
Message-ID: <20240823232327.2408869-10-yunhong.jiang@linux.intel.com> (raw)
In-Reply-To: <20240823232327.2408869-1-yunhong.jiang@linux.intel.com>
For VTL2 hyperv guest with wakeup mailbox in device tree, don't
overwrite wakeup_secondary_cpu_64 so that the acpi_wakeup_cpu will be
used to bring up the APs.
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
---
arch/x86/hyperv/hv_vtl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/hyperv/hv_vtl.c b/arch/x86/hyperv/hv_vtl.c
index 5829aac74f80..09a7410200ba 100644
--- a/arch/x86/hyperv/hv_vtl.c
+++ b/arch/x86/hyperv/hv_vtl.c
@@ -264,7 +264,8 @@ int __init hv_vtl_early_init(void)
panic("XSAVE has to be disabled as it is not supported by this module.\n"
"Please add 'noxsave' to the kernel command line.\n");
- apic_update_callback(wakeup_secondary_cpu_64, hv_vtl_wakeup_secondary_cpu);
+ if (!wakeup_mailbox_addr)
+ apic_update_callback(wakeup_secondary_cpu_64, hv_vtl_wakeup_secondary_cpu);
return 0;
}
--
2.25.1
prev parent reply other threads:[~2024-08-23 23:23 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-23 23:23 [PATCH v2 0/9] x86/hyperv: Support wakeup mailbox for VTL2 TDX guest Yunhong Jiang
2024-08-23 23:23 ` [PATCH v2 1/9] x86/acpi: Move ACPI MADT wakeup to generic code Yunhong Jiang
2024-08-23 23:23 ` [PATCH v2 2/9] dt-bindings: x86: Add a binding for x86 wakeup mailbox Yunhong Jiang
2024-08-25 7:10 ` Krzysztof Kozlowski
2024-08-27 20:45 ` Yunhong Jiang
2024-09-10 6:13 ` Yunhong Jiang
2024-09-16 8:56 ` Krzysztof Kozlowski
2024-09-19 19:19 ` Yunhong Jiang
2024-09-19 22:15 ` Yunhong Jiang
2024-09-20 11:19 ` Krzysztof Kozlowski
2024-09-20 11:15 ` Krzysztof Kozlowski
2025-03-03 22:21 ` Ricardo Neri
2025-03-11 10:01 ` Krzysztof Kozlowski
2025-03-12 5:51 ` Ricardo Neri
2025-03-19 7:52 ` Krzysztof Kozlowski
2025-03-20 20:34 ` Ricardo Neri
2024-08-23 23:23 ` [PATCH v2 3/9] x86/dt: Support the ACPI multiprocessor wakeup for device tree Yunhong Jiang
2024-09-02 3:35 ` Michael Kelley
2024-09-03 18:35 ` Yunhong Jiang
2024-08-23 23:23 ` [PATCH v2 4/9] x86/hyperv: Parse the ACPI wakeup mailbox Yunhong Jiang
2024-09-02 3:35 ` Michael Kelley
2024-09-03 20:19 ` Yunhong Jiang
2024-09-04 14:56 ` Michael Kelley
2024-09-04 17:31 ` Yunhong Jiang
2024-08-23 23:23 ` [PATCH v2 5/9] x86/hyperv: Mark ACPI wakeup mailbox page as private Yunhong Jiang
2024-09-02 3:35 ` Michael Kelley
2024-09-02 18:38 ` Saurabh Singh Sengar
2024-09-02 20:24 ` Michael Kelley
2024-08-23 23:23 ` [PATCH v2 6/9] x86/realmode: Add memory range support to reserve_real_mode Yunhong Jiang
2024-08-23 23:23 ` [PATCH v2 7/9] x86/hyperv: Move setting the real_mode_header to hv_vtl_init_platform Yunhong Jiang
2024-08-23 23:23 ` [PATCH v2 8/9] x86/hyperv: Set realmode_limit to 4G for VTL2 TDX guest Yunhong Jiang
2024-09-02 3:35 ` Michael Kelley
2024-08-23 23:23 ` Yunhong Jiang [this message]
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