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From: "Verma, Vishal L" <vishal.l.verma@intel.com>
To: "kas@kernel.org" <kas@kernel.org>
Cc: "dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Edgecombe, Rick P" <rick.p.edgecombe@intel.com>,
	"ak@linux.intel.com" <ak@linux.intel.com>,
	"x86@kernel.org" <x86@kernel.org>
Subject: Re: [PATCH] x86/tdx: Remove the early #VE handler
Date: Tue, 22 Sep 2026 17:45:03 +0000	[thread overview]
Message-ID: <d940f1bb8bf51915c7efb19f79760859ad8a45df.camel@intel.com> (raw)
In-Reply-To: <arJVpaAi9TqEfV7E@thinkstation>

On Tue, 2026-09-22 at 11:19 +0100, Kiryl Shutsemau wrote:
> 
> Could you just check what happens you panic early (like in
> tdx_early_init()) with and without the patch?

Tested this:

---

 arch/x86/coco/tdx/tdx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/coco/tdx/tdx.c b/arch/x86/coco/tdx/tdx.c
index f904a636d449..fcb2ecf055d1 100644
--- a/arch/x86/coco/tdx/tdx.c
+++ b/arch/x86/coco/tdx/tdx.c
@@ -1192,4 +1192,7 @@ void __init tdx_early_init(void)
 	x86_cpuinit.parallel_bringup = false;

 	tdx_announce();
+
+	panic("early #VE window panic test");
 }

---

In both cases, with and without the removal patch, the guest just hangs
without any actual text in the serial output. I didn't add any panic=
cmdline, and CONFIG_PANIC_TIMEOUT was the default 0.

  reply	other threads:[~2026-09-22 17:45 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-10 18:28 [PATCH] x86/tdx: Remove the early #VE handler Vishal Verma
2026-09-10 20:39 ` Edgecombe, Rick P
2026-09-11  0:15   ` Verma, Vishal L
2026-09-11 10:37   ` Kiryl Shutsemau
2026-09-11 15:24     ` Edgecombe, Rick P
2026-09-11 16:07       ` Kiryl Shutsemau
2026-09-11 17:51         ` Edgecombe, Rick P
2026-09-21 21:20     ` Verma, Vishal L
2026-09-22 10:19       ` Kiryl Shutsemau
2026-09-22 17:45         ` Verma, Vishal L [this message]
2026-09-24 10:48           ` Kiryl Shutsemau
2026-09-29 11:15 ` Nikolay Borisov

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