From: "H. Peter Anvin" <hpa@zytor.com>
To: Borislav Petkov <bp@alien8.de>
Cc: "Xin Li (Intel)" <xin@zytor.com>,
linux-kernel@vger.kernel.org, luto@kernel.org,
tglx@linutronix.de, mingo@redhat.com,
dave.hansen@linux.intel.com, x86@kernel.org
Subject: Re: [PATCH v1 1/1] x86/fred: Fix int80 emulation for FRED
Date: Tue, 16 Apr 2024 11:11:44 -0700 [thread overview]
Message-ID: <e3fbd500-f6b8-49ea-addb-bbc4803709ce@zytor.com> (raw)
In-Reply-To: <20240416180746.GFZh6-cmZqCF6KX5tt@fat_crate.local>
On 4/16/24 11:07, Borislav Petkov wrote:
> On Tue, Apr 16, 2024 at 11:05:09AM -0700, H. Peter Anvin wrote:
>> The question was if you wanted a quick fix for x86/urgent. It's pretty
>> obvious that a FRED fork of the int80 code is called for.
>
> Yeah, I'm thinking the FRED fork would be even easier to send to Linus
> now since no existing hw will break.
Looking at the resulting code (Xin's v2 path), I would agree with you.
The code is downright trivial.
> Btw, I presume that patch needs to have
>
> Fixes: 55617fb991df ("x86/entry: Do not allow external 0x80 interrupts")
>
Yes. My fault, I gave Xin incorrect information w.r.t. Fixes: tags.
-hpa
next prev parent reply other threads:[~2024-04-16 18:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-12 23:40 Xin Li (Intel)
2024-04-15 16:21 ` H. Peter Anvin
2024-04-16 10:11 ` Borislav Petkov
2024-04-16 16:58 ` Xin Li
2024-04-16 18:05 ` H. Peter Anvin
2024-04-16 18:07 ` Borislav Petkov
2024-04-16 18:11 ` H. Peter Anvin [this message]
2024-04-16 18:18 ` Borislav Petkov
2024-04-16 18:19 ` H. Peter Anvin
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