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
prev 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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