From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org,
linux-coco@lists.linux.dev, kvm@vger.kernel.org
Cc: Juergen Gross <jgross@suse.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>,
Kiryl Shutsemau <kas@kernel.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>
Subject: [PATCH v5 02/17] coco/tdx: Rename MSR access helpers
Date: Fri, 11 Sep 2026 10:41:56 +0200 [thread overview]
Message-ID: <20260911084211.3149957-3-jgross@suse.com> (raw)
In-Reply-To: <20260911084211.3149957-1-jgross@suse.com>
In order to avoid a name clash with some general MSR access helpers
after a future MSR infrastructure rework, rename the TDX specific
helpers.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Kiryl Shutsemau <kas@kernel.org>
Reviewed-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
---
arch/x86/coco/tdx/tdx.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/coco/tdx/tdx.c b/arch/x86/coco/tdx/tdx.c
index f904a636d449..29aa57fb4244 100644
--- a/arch/x86/coco/tdx/tdx.c
+++ b/arch/x86/coco/tdx/tdx.c
@@ -469,7 +469,7 @@ static void __cpuidle tdx_safe_halt(void)
raw_local_irq_enable();
}
-static int read_msr(struct pt_regs *regs, struct ve_info *ve)
+static int tdx_read_msr(struct pt_regs *regs, struct ve_info *ve)
{
struct tdx_module_args args = {
.r10 = TDX_HYPERCALL_STANDARD,
@@ -490,7 +490,7 @@ static int read_msr(struct pt_regs *regs, struct ve_info *ve)
return ve_instr_len(ve);
}
-static int write_msr(struct pt_regs *regs, struct ve_info *ve)
+static int tdx_write_msr(struct pt_regs *regs, struct ve_info *ve)
{
struct tdx_module_args args = {
.r10 = TDX_HYPERCALL_STANDARD,
@@ -841,9 +841,9 @@ static int virt_exception_kernel(struct pt_regs *regs, struct ve_info *ve)
case EXIT_REASON_HLT:
return handle_halt(ve);
case EXIT_REASON_MSR_READ:
- return read_msr(regs, ve);
+ return tdx_read_msr(regs, ve);
case EXIT_REASON_MSR_WRITE:
- return write_msr(regs, ve);
+ return tdx_write_msr(regs, ve);
case EXIT_REASON_CPUID:
return handle_cpuid(regs, ve);
case EXIT_REASON_EPT_VIOLATION:
--
2.55.0
next prev parent reply other threads:[~2026-09-11 8:42 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-11 8:41 [PATCH v5 00/17] x86/msr: Inline rdmsr/wrmsr instructions Juergen Gross
2026-09-11 8:41 ` [PATCH v5 01/17] x86/alternative: Support alt_replace_call() with instructions after call Juergen Gross
2026-09-11 8:41 ` Juergen Gross [this message]
2026-09-11 8:41 ` [PATCH v5 03/17] x86/msr: Minimize usage of native_*() msr access functions Juergen Gross
2026-09-11 8:41 ` [PATCH v5 04/17] x86/msr: Move MSR trace calls one function level up Juergen Gross
2026-09-23 20:26 ` Shreshth Srivastava
2026-09-25 13:15 ` Jürgen Groß
2026-09-11 8:41 ` [PATCH v5 05/17] x86/hyperv: Switch from __rdmsr() to native_rdmsrq() Juergen Gross
2026-09-11 8:42 ` [PATCH v5 06/17] x86/opcode: Add immediate form MSR instructions Juergen Gross
2026-09-11 8:42 ` [PATCH v5 07/17] x86/extable: Add support for " Juergen Gross
2026-09-11 8:42 ` [PATCH v5 08/17] x86/msr: Make wrmsrns() a first class citizen Juergen Gross
2026-09-11 8:42 ` [PATCH v5 09/17] x86/msr: Introduce sync_cpu_after_wrmsrns() Juergen Gross
2026-09-11 8:42 ` [PATCH v5 10/17] x86/msr: Use the alternatives mechanism for RDMSR Juergen Gross
2026-09-11 8:42 ` [PATCH v5 11/17] x86/alternatives: Add ALTERNATIVE_4() Juergen Gross
2026-09-11 8:42 ` [PATCH v5 12/17] x86/paravirt: Split off MSR related hooks into new header Juergen Gross
2026-09-11 8:42 ` [PATCH v5 13/17] x86/paravirt: Prepare support of MSR instruction interfaces Juergen Gross
2026-09-11 8:42 ` [PATCH v5 14/17] x86/paravirt: Switch MSR access pv_ops functions to " Juergen Gross
2026-09-11 8:42 ` [PATCH v5 15/17] x86/msr: Reduce number of low level MSR access helpers Juergen Gross
2026-09-11 8:42 ` [PATCH v5 16/17] x86/paravirt: Use alternatives for MSR access with paravirt Juergen Gross
2026-09-11 8:42 ` [PATCH v5 17/17] x86/msr: Make all MSR access functions __always_inline Juergen Gross
2026-09-23 19:36 ` [PATCH v5 00/17] x86/msr: Inline rdmsr/wrmsr instructions Shreshth Srivastava
2026-09-23 20:15 ` Nick Desaulniers
2026-09-25 10:25 ` Jürgen Groß
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