From: Thomas Gleixner <tglx@linutronix.de>
To: Lai Jiangshan <jiangshanlai@gmail.com>, linux-kernel@vger.kernel.org
Cc: Borislav Petkov <bp@alien8.de>,
Peter Zijlstra <peterz@infradead.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Andy Lutomirski <luto@kernel.org>,
x86@kernel.org, Lai Jiangshan <jiangshan.ljs@antgroup.com>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Pasha Tatashin <pasha.tatashin@soleen.com>
Subject: Re: [PATCH 2/7] x86/entry: Move PTI_USER_* to arch/x86/include/asm/processor-flags.h
Date: Wed, 11 May 2022 12:25:30 +0200 [thread overview]
Message-ID: <87h75wgycl.ffs@tglx> (raw)
In-Reply-To: <20220511072747.3960-3-jiangshanlai@gmail.com>
On Wed, May 11 2022 at 15:27, Lai Jiangshan wrote:
> From: Lai Jiangshan <jiangshan.ljs@antgroup.com>
>
> These constants will be also used in C file.
>
> Move them to arch/x86/include/asm/processor-flags.h which already has
> a kin X86_CR3_PTI_PCID_USER_BIT defined in it.
>
> Remove PTI_PGTABLE_SWITCH_BIT and replace it with PTI_USER_PGTABLE_BIT
> since they are the same in meaning and value.
Just from looking at the patch it's obvious that it breaks the 32bit
CONFIG_PAGETABLE_ISOLATION=y build. Sigh.
Thanks,
tglx
next prev parent reply other threads:[~2022-05-11 10:25 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-11 7:27 [PATCH 0/7] x86/entry: Convert error_entry() to C code Lai Jiangshan
2022-05-11 7:27 ` [PATCH 1/7] x86/entry: Introduce __entry_text for entry code written in C Lai Jiangshan
2022-05-11 18:01 ` Nick Desaulniers
2022-05-11 19:27 ` Miguel Ojeda
2022-05-11 19:34 ` Nick Desaulniers
2022-05-11 19:41 ` Miguel Ojeda
2022-05-11 20:09 ` Thomas Gleixner
2022-05-11 7:27 ` [PATCH 2/7] x86/entry: Move PTI_USER_* to arch/x86/include/asm/processor-flags.h Lai Jiangshan
2022-05-11 10:25 ` Thomas Gleixner [this message]
2022-05-11 12:40 ` Lai Jiangshan
2022-05-11 7:27 ` [PATCH 3/7] x86: Mark __native_read_cr3() & native_write_cr3() as __always_inline Lai Jiangshan
2022-05-11 7:27 ` [PATCH 4/7] x86/entry: Add arch/x86/entry/entry64.c for C entry code Lai Jiangshan
2022-05-11 7:27 ` [PATCH 5/7] x86/entry: Add the C verion of SWITCH_TO_KERNEL_CR3 as switch_to_kernel_cr3() Lai Jiangshan
2022-05-11 7:27 ` [PATCH 6/7] x86/traps: Add fence_swapgs_{user,kernel}_entry() and user_entry_swapgs_and_fence() Lai Jiangshan
2022-05-11 7:27 ` [PATCH 7/7] x86/entry: Implement the whole error_entry() as C code Lai Jiangshan
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