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Re: [Xen-devel] [PATCH v6 00/27] x86: PIE support and option to extend KASLR randomization
- To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
- From: Thomas Garnier <thgarnie@xxxxxxxxxxxx>
- Date: Thu, 31 Jan 2019 14:42:21 -0800
- Cc: Kernel Hardening <kernel-hardening@xxxxxxxxxxxxxxxxxx>, Jan Kiszka <jan.kiszka@xxxxxxxxxxx>, Pavel Machek <pavel@xxxxxx>, Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>, Christoph Lameter <cl@xxxxxxxxx>, Rafael Ávila de Espíndola <rafael@xxxxxxxxxx>, linux-arch <linux-arch@xxxxxxxxxxxxxxx>, Andi Kleen <ak@xxxxxxxxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Sparse Mailing-list <linux-sparse@xxxxxxxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Alexander Popov <alex.popov@xxxxxxxxx>, Len Brown <len.brown@xxxxxxxxx>, Linux PM list <linux-pm@xxxxxxxxxxxxxxx>, Nicholas Piggin <npiggin@xxxxxxxxx>, Cao jin <caoj.fnst@xxxxxxxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Dennis Zhou <dennis@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, nixiaoming <nixiaoming@xxxxxxxxxx>, Michal Marek <michal.lkml@xxxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Nick Desaulniers <ndesaulniers@xxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Jia Zhang <qianyue.zj@xxxxxxxxxxxxxxx>, Luis Chamberlain <mcgrof@xxxxxxxxxx>, Masami Hiramatsu <mhiramat@xxxxxxxxxx>, Tejun Heo <tj@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Linux Doc Mailing List <linux-doc@xxxxxxxxxxxxxxx>, "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Mimi Zohar <zohar@xxxxxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>, Nadav Amit <namit@xxxxxxxxxx>, kristen@xxxxxxxxxxxxxxx, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Yonghong Song <yhs@xxxxxx>, Linux Crypto Mailing List <linux-crypto@xxxxxxxxxxxxxxx>, "H.J. Lu" <hjl.tools@xxxxxxxxx>, Michael Forney <forney@xxxxxxxxxx>, linux-kbuild@xxxxxxxxxxxxxxx, Jason Baron <jbaron@xxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>, Song Liu <songliubraving@xxxxxx>, Brijesh Singh <brijesh.singh@xxxxxxx>, Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Baoquan He <bhe@xxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Nayna Jain <nayna@xxxxxxxxxxxxx>, James Hogan <jhogan@xxxxxxxxxx>, Alexey Dobriyan <adobriyan@xxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>, Alok Kataria <akataria@xxxxxxxxxx>, Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>, Michal Hocko <mhocko@xxxxxxxx>, kvm list <kvm@xxxxxxxxxxxxxxx>, Radim Krčmář <rkrcmar@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Jordan Borgner <mail@xxxxxxxxxxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>, Joe Lawrence <joe.lawrence@xxxxxxxxxx>, Paolo Bonzini <pbonzini@xxxxxxxxxx>, Nathan Chancellor <natechancellor@xxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Francis Deslauriers <francis.deslauriers@xxxxxxxxxxxx>, Adrian Hunter <adrian.hunter@xxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
- Delivery-date: Thu, 31 Jan 2019 23:14:27 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Thu, Jan 31, 2019 at 1:41 PM Konrad Rzeszutek Wilk
<konrad.wilk@xxxxxxxxxx> wrote:
>
> On Thu, Jan 31, 2019 at 11:24:07AM -0800, Thomas Garnier wrote:
> > There has been no major concern in the latest iterations. I am interested on
> > what would be the best way to slowly integrate this patchset upstream.
>
> One question that I was somehow expected in this cover letter - what
> about all those lovely speculative bugs? As in say some one hasn't
> updated their machine with the Spectre v3a microcode - wouldn't they
> be able to get the kernel virtual address space?
Yes they would be.
>
> In effect rendering all this hard-work not needed?
Only if we think Spectre bugs will never be fixed.
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