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: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-28 9:50 [PATCH RFC 00/43] x86/pie: Make kernel image's virtual address flexible Hou Wenlong
2023-04-28 9:51 ` [PATCH RFC 30/43] x86/bpf: Adapt BPF_CALL JIT codegen for PIE support 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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