From: Dave Hansen <dave.hansen@intel.com>
To: "David Woodhouse" <dwmw2@infradead.org>,
kexec@lists.infradead.org, "Schönherr,
Jan H." <jschoenh@amazon.de>, "Rik van Riel" <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Kai Huang <kai.huang@intel.com>,
Nikolay Borisov <nik.borisov@suse.com>,
linux-kernel@vger.kernel.org, Simon Horman <horms@kernel.org>,
Dave Young <dyoung@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
jpoimboe@kernel.org, bsz@amazon.de
Subject: Re: [RFC PATCH] x86/mm: Disable PTI for kernel_ident_mapping_init()
Date: Tue, 26 Nov 2024 07:49:26 -0800 [thread overview]
Message-ID: <efd1199c-b037-4e23-9982-7f466ec41720@intel.com> (raw)
In-Reply-To: <0c8fe87b34252966ecf558271b09c4b855700691.camel@infradead.org>
On 11/26/24 03:42, David Woodhouse wrote:
> I threw this version together and it didn't immediately explode...
It's better than playing #define games. The damage is also pretty
limited and it helps us avoid plumbing a bit through the page table
handling function arguments.
next prev parent reply other threads:[~2024-11-26 15:49 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-25 9:54 [RFC PATCH v3 00/20] x86/kexec: Add exception handling for relocate_kernel and further yak-shaving David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 01/20] x86/kexec: Ensure control_code_page is mapped in kexec page tables David Woodhouse
2024-11-25 10:29 ` [EXTERNAL] " David Woodhouse
2024-11-25 13:19 ` David Woodhouse
2024-11-25 17:05 ` [RFC PATCH] x86/mm: Disable PTI for kernel_ident_mapping_init() David Woodhouse
2024-11-25 18:31 ` Dave Hansen
2024-11-25 18:53 ` David Woodhouse
2024-11-25 19:13 ` Dave Hansen
2024-11-25 19:36 ` David Woodhouse
2024-11-26 11:42 ` David Woodhouse
2024-11-26 15:49 ` Dave Hansen [this message]
2024-11-26 16:09 ` David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 02/20] x86/kexec: Restore GDT on return from preserve_context kexec David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 03/20] x86/kexec: Clean up and document register use in relocate_kernel_64.S David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 04/20] x86/kexec: Use named labels in swap_pages " David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 05/20] x86/kexec: Only swap pages for preserve_context mode David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 06/20] x86/kexec: Allocate PGD for x86_64 transition page tables separately David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 07/20] x86/kexec: Copy control page into place in machine_kexec_prepare() David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 08/20] x86/kexec: Invoke copy of relocate_kernel() instead of the original David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 09/20] x86/kexec: Move relocate_kernel to kernel .data section David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 10/20] x86/kexec: Add data section to relocate_kernel David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 11/20] x86/kexec: Drop page_list argument from relocate_kernel() David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 12/20] x86/kexec: Eliminate writes through kernel mapping of relocate_kernel page David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 13/20] x86/kexec: Clean up register usage in relocate_kernel() David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 14/20] x86/kexec: Mark relocate_kernel page as ROX instead of RWX David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 15/20] x86/kexec: Add CONFIG_KEXEC_DEBUG option David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 16/20] x86/kexec: Debugging support: load a GDT David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 17/20] x86/kexec: Debugging support: Load an IDT and basic exception entry points David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 18/20] x86/kexec: Debugging support: Dump registers on exception David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 19/20] x86/kexec: Add 8250 serial port output David Woodhouse
2024-11-25 9:54 ` [RFC PATCH v3 20/20] [DO NOT MERGE] x86/kexec: Add int3 in kexec path for testing David Woodhouse
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