linux-kernel - [PATCH v0 1/6] x86/hyperv: Rename guest shutdown functions

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Message-Id: <20250904021017.1628993-2-mrathor@linux.microsoft.com>
Date: Wed,  3 Sep 2025 19:10:12 -0700
From: Mukesh Rathor <mrathor@...ux.microsoft.com>
To: linux-hyperv@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org
Cc: kys@...rosoft.com,
	haiyangz@...rosoft.com,
	wei.liu@...nel.org,
	decui@...rosoft.com,
	tglx@...utronix.de,
	mingo@...hat.com,
	bp@...en8.de,
	dave.hansen@...ux.intel.com,
	x86@...nel.org,
	hpa@...or.com,
	arnd@...db.de
Subject: [PATCH v0 1/6] x86/hyperv: Rename guest shutdown functions

This commit renames hv_machine_crash_shutdown to more appropriate
hv_guest_crash_shutdown and makes it applicable to guests only. This
in preparation for the subsequent hypervisor root/dom0 crash support
patches.

Signed-off-by: Mukesh Rathor <mrathor@...ux.microsoft.com>
---
 arch/x86/kernel/cpu/mshyperv.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index b8caf78c4336..f5d76d854d39 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -237,7 +237,7 @@ static void hv_machine_shutdown(void)
 #endif /* CONFIG_KEXEC_CORE */
 
 #ifdef CONFIG_CRASH_DUMP
-static void hv_machine_crash_shutdown(struct pt_regs *regs)
+static void hv_guest_crash_shutdown(struct pt_regs *regs)
 {
 	if (hv_crash_handler)
 		hv_crash_handler(regs);
@@ -824,7 +824,8 @@ static void __init ms_hyperv_init_platform(void)
 	machine_ops.shutdown = hv_machine_shutdown;
 #endif
 #if defined(CONFIG_CRASH_DUMP)
-	machine_ops.crash_shutdown = hv_machine_crash_shutdown;
+	if (!hv_root_partition)
+		machine_ops.crash_shutdown = hv_guest_crash_shutdown;
 #endif
 #endif
 	/*
-- 
2.36.1.vfs.0.0