linux-kernel - [PATCH 20/33] KVM: TDX: Add helper functions to print TDX SEAMCALL error

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250226181453.2311849-21-pbonzini@redhat.com>
Date: Wed, 26 Feb 2025 13:14:39 -0500
From: Paolo Bonzini <pbonzini@...hat.com>
To: linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org
Cc: seanjc@...gle.com,
	Yan Zhao <yan.y.zhao@...el.com>,
	Rick Edgecombe <rick.p.edgecombe@...el.com>,
	Isaku Yamahata <isaku.yamahata@...el.com>,
	Tony Lindgren <tony.lindgren@...ux.intel.com>,
	Binbin Wu <binbin.wu@...ux.intel.com>,
	Yuan Yao <yuan.yao@...el.com>
Subject: [PATCH 20/33] KVM: TDX: Add helper functions to print TDX SEAMCALL error

From: Isaku Yamahata <isaku.yamahata@...el.com>

Add helper functions to print out errors from the TDX module in a uniform
manner.

Signed-off-by: Isaku Yamahata <isaku.yamahata@...el.com>
Co-developed-by: Tony Lindgren <tony.lindgren@...ux.intel.com>
Signed-off-by: Tony Lindgren <tony.lindgren@...ux.intel.com>
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@...el.com>
Reviewed-by: Binbin Wu <binbin.wu@...ux.intel.com>
Reviewed-by: Yuan Yao <yuan.yao@...el.com>
Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
---
 arch/x86/kvm/vmx/tdx.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c
index c319eb44d9f9..8928b27547c1 100644
--- a/arch/x86/kvm/vmx/tdx.c
+++ b/arch/x86/kvm/vmx/tdx.c
@@ -10,6 +10,21 @@
 #undef pr_fmt
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#define pr_tdx_error(__fn, __err)	\
+	pr_err_ratelimited("SEAMCALL %s failed: 0x%llx\n", #__fn, __err)
+
+#define __pr_tdx_error_N(__fn_str, __err, __fmt, ...)		\
+	pr_err_ratelimited("SEAMCALL " __fn_str " failed: 0x%llx, " __fmt,  __err,  __VA_ARGS__)
+
+#define pr_tdx_error_1(__fn, __err, __rcx)		\
+	__pr_tdx_error_N(#__fn, __err, "rcx 0x%llx\n", __rcx)
+
+#define pr_tdx_error_2(__fn, __err, __rcx, __rdx)	\
+	__pr_tdx_error_N(#__fn, __err, "rcx 0x%llx, rdx 0x%llx\n", __rcx, __rdx)
+
+#define pr_tdx_error_3(__fn, __err, __rcx, __rdx, __r8)	\
+	__pr_tdx_error_N(#__fn, __err, "rcx 0x%llx, rdx 0x%llx, r8 0x%llx\n", __rcx, __rdx, __r8)
+
 bool enable_tdx __ro_after_init;
 module_param_named(tdx, enable_tdx, bool, 0444);
 
-- 
2.43.5