From: Peter Zijlstra <peterz@infradead.org>
To: Hou Wenlong <houwenlong.hwl@antgroup.com>
Cc: linux-kernel@vger.kernel.org,
Thomas Garnier <thgarnie@chromium.org>,
Lai Jiangshan <jiangshan.ljs@antgroup.com>,
Kees Cook <keescook@chromium.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Tom Rix <trix@redhat.com>,
bpf@vger.kernel.org, llvm@lists.linux.dev
Subject: Re: [PATCH RFC 00/43] x86/pie: Make kernel image's virtual address flexible
Date: Fri, 28 Apr 2023 17:22:06 +0200 [thread overview]
Message-ID: <20230428152206.GA1464060@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <cover.1682673542.git.houwenlong.hwl@antgroup.com>
For some raison I didn't get 0/n but did get all of the others. Please
keep your Cc list consistent.
On Fri, Apr 28, 2023 at 05:50:40PM +0800, Hou Wenlong wrote:
> - It is not allowed to reference global variables in an alternative
> section since RIP-relative addressing is not fixed in
> apply_alternatives(). Fortunately, all disallowed relocations in the
> alternative section can be captured by objtool. I believe that this
> issue can also be fixed by using objtool.
https://lkml.kernel.org/r/Y9py2a5Xw0xbB8ou@hirez.programming.kicks-ass.net
next prev parent reply other threads:[~2023-04-28 15:22 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-28 9:50 Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 01/43] x86/crypto: Adapt assembly for PIE support Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 02/43] x86: Add macro to get symbol address " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 03/43] x86: relocate_kernel - Adapt assembly " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 04/43] x86/entry/64: " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 05/43] x86: pm-trace: " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 06/43] x86/CPU: " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 07/43] x86/acpi: " Hou Wenlong
2023-04-28 11:32 ` Rafael J. Wysocki
2023-04-28 9:50 ` [PATCH RFC 08/43] x86/boot/64: " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 09/43] x86/power/64: " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 10/43] x86/alternatives: " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 11/43] x86/irq: " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 12/43] x86,rethook: " Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 13/43] x86/paravirt: Use relative reference for original instruction Hou Wenlong
2023-06-01 9:29 ` Juergen Gross
2023-06-05 6:40 ` Nadav Amit
2023-06-06 11:35 ` Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 14/43] x86/Kconfig: Introduce new Kconfig for PIE kernel building Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 15/43] x86/PVH: Use fixed_percpu_data to set up GS base Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 16/43] x86-64: Use per-cpu stack canary if supported by compiler Hou Wenlong
2023-05-01 17:27 ` Nick Desaulniers
2023-05-05 6:14 ` Hou Wenlong
2023-05-05 18:02 ` Nick Desaulniers
2023-05-05 19:06 ` Fangrui Song
2023-05-08 8:06 ` Hou Wenlong
2023-05-04 10:31 ` Juergen Gross
2023-05-05 3:09 ` Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 17/43] x86/pie: Enable stack protector only if per-cpu stack canary is supported Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 18/43] x86/percpu: Use PC-relative addressing for percpu variable references Hou Wenlong
2023-04-28 9:50 ` [PATCH RFC 19/43] x86/tools: Explicitly include autoconf.h for hostprogs Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 20/43] x86/percpu: Adapt percpu references relocation for PIE support Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 21/43] x86/ftrace: Adapt assembly " Hou Wenlong
2023-04-28 13:37 ` Steven Rostedt
2023-04-29 3:43 ` Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 22/43] x86/ftrace: Adapt ftrace nop patching " Hou Wenlong
2023-04-28 13:44 ` Steven Rostedt
2023-04-29 3:38 ` Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 23/43] x86/pie: Force hidden visibility for all symbol references Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 24/43] x86/boot/compressed: Adapt sed command to generate voffset.h when PIE is enabled Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 25/43] x86/mm: Make the x86 GOT read-only Hou Wenlong
2023-04-30 14:23 ` Ard Biesheuvel
2023-05-08 11:40 ` Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 26/43] x86/pie: Add .data.rel.* sections into link script Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 27/43] x86/relocs: Handle PIE relocations Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 28/43] KVM: x86: Adapt assembly for PIE support Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 29/43] x86/PVH: Adapt PVH booting " Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 30/43] x86/bpf: Adapt BPF_CALL JIT codegen " Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 31/43] x86/modules: Adapt module loading " Hou Wenlong
2023-04-28 19:29 ` Ard Biesheuvel
2023-05-08 8:32 ` Hou Wenlong
2023-05-08 9:16 ` Ard Biesheuvel
2023-05-08 11:40 ` Hou Wenlong
2023-05-08 17:47 ` Ard Biesheuvel
2023-05-09 9:42 ` Hou Wenlong
2023-05-09 9:52 ` Ard Biesheuvel
2023-05-09 12:35 ` Hou Wenlong
2023-05-10 7:09 ` Hou Wenlong
2023-05-10 8:15 ` Ard Biesheuvel
2023-04-28 9:51 ` [PATCH RFC 32/43] x86/boot/64: Use data relocation to get absloute address when PIE is enabled Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 33/43] objtool: Add validation for x86 PIE support Hou Wenlong
2023-04-28 10:28 ` Christophe Leroy
2023-04-28 11:43 ` Peter Zijlstra
2023-04-29 4:04 ` Hou Wenlong
2023-04-29 3:52 ` Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 34/43] objtool: Adapt indirect call of __fentry__() for " Hou Wenlong
2023-04-28 15:18 ` Peter Zijlstra
2023-04-28 9:51 ` [PATCH RFC 35/43] x86/pie: Build the kernel as PIE Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 36/43] x86/vsyscall: Don't use set_fixmap() to map vsyscall page Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 37/43] x86/xen: Pin up to VSYSCALL_ADDR when vsyscall page is out of fixmap area Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 38/43] x86/fixmap: Move vsyscall page " Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 39/43] x86/fixmap: Unify FIXADDR_TOP Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 40/43] x86/boot: Fill kernel image puds dynamically Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 41/43] x86/mm: Sort address_markers array when X86 PIE is enabled Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 42/43] x86/pie: Allow kernel image to be relocated in top 512G Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 43/43] x86/boot: Extend relocate range for PIE kernel image Hou Wenlong
2023-04-28 15:22 ` Peter Zijlstra [this message]
2023-05-06 7:19 ` [PATCH RFC 00/43] x86/pie: Make kernel image's virtual address flexible Hou Wenlong
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