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From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org,
	linux-hyperv@vger.kernel.org
Cc: Juergen Gross <jgross@suse.com>,
	"K. Y. Srinivasan" <kys@microsoft.com>,
	Haiyang Zhang <haiyangz@microsoft.com>,
	Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
	Long Li <longli@microsoft.com>, Thomas Gleixner <tglx@kernel.org>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	kernel test robot <lkp@intel.com>
Subject: [PATCH v4 06/18] x86/hyperv: Switch from __rdmsr() to native_rdmsrq()
Date: Mon, 29 Jun 2026 08:55:32 +0200	[thread overview]
Message-ID: <20260629065544.3643253-7-jgross@suse.com> (raw)
In-Reply-To: <20260629065544.3643253-1-jgross@suse.com>

The __rdmsr() helper will be changed soon, so don't use it directly
outside of msr.h. Switch to native_rdmsrq() in HyperV related code.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202602182222.WEBLSQRj-lkp@intel.com/
Signed-off-by: Juergen Gross <jgross@suse.com>
---
V4:
- new patch (kernel test robot)
---
 arch/x86/hyperv/hv_crash.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/hyperv/hv_crash.c b/arch/x86/hyperv/hv_crash.c
index 5ffcc23255de..28ee76e18d9b 100644
--- a/arch/x86/hyperv/hv_crash.c
+++ b/arch/x86/hyperv/hv_crash.c
@@ -217,9 +217,9 @@ static void hv_hvcrash_ctxt_save(void)
 	native_store_gdt(&ctxt->gdtr);
 	store_idt(&ctxt->idtr);
 
-	ctxt->gsbase = __rdmsr(MSR_GS_BASE);
-	ctxt->efer = __rdmsr(MSR_EFER);
-	ctxt->pat = __rdmsr(MSR_IA32_CR_PAT);
+	ctxt->gsbase = native_rdmsrq(MSR_GS_BASE);
+	ctxt->efer = native_rdmsrq(MSR_EFER);
+	ctxt->pat = native_rdmsrq(MSR_IA32_CR_PAT);
 }
 
 /* Add trampoline page to the kernel pagetable for transition to kernel PT */
-- 
2.54.0


      parent reply	other threads:[~2026-06-29  6:56 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-29  6:55 [PATCH v4 00/18] x86/msr: Inline rdmsr/wrmsr instructions Juergen Gross
2026-06-29  6:55 ` [PATCH v4 04/18] x86/msr: Minimize usage of native_*() msr access functions Juergen Gross
2026-06-29  6:55 ` Juergen Gross [this message]

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