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Message-ID: <CAJcbSZGFfspzR3V62wAAVfCPLouMBDhr_5LjR44+Ay2sPNhAJQ@mail.gmail.com> Date: Wed, 15 Feb 2017 07:41:45 -0800 From: Thomas Garnier <thgarnie@...gle.com> To: Boris Ostrovsky <boris.ostrovsky@...cle.com> Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H . Peter Anvin" <hpa@...or.com>, Andrey Ryabinin <aryabinin@...tuozzo.com>, Alexander Potapenko <glider@...gle.com>, Dmitry Vyukov <dvyukov@...gle.com>, Kees Cook <keescook@...omium.org>, Andy Lutomirski <luto@...nel.org>, Borislav Petkov <bp@...e.de>, Paul Gortmaker <paul.gortmaker@...driver.com>, Andy Lutomirski <luto@...capital.net>, "Rafael J . Wysocki" <rjw@...ysocki.net>, Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>, Jiri Kosina <jikos@...nel.org>, Matt Fleming <matt@...eblueprint.co.uk>, Ard Biesheuvel <ard.biesheuvel@...aro.org>, Juergen Gross <jgross@...e.com>, Rusty Russell <rusty@...tcorp.com.au>, Peter Zijlstra <peterz@...radead.org>, Christian Borntraeger <borntraeger@...ibm.com>, "Luis R . Rodriguez" <mcgrof@...nel.org>, He Chen <he.chen@...ux.intel.com>, Brian Gerst <brgerst@...il.com>, Stanislaw Gruszka <sgruszka@...hat.com>, Arnd Bergmann <arnd@...db.de>, Adam Buchbinder <adam.buchbinder@...il.com>, Dave Hansen <dave.hansen@...el.com>, Vitaly Kuznetsov <vkuznets@...hat.com>, Josh Poimboeuf <jpoimboe@...hat.com>, Tim Chen <tim.c.chen@...ux.intel.com>, Rik van Riel <riel@...hat.com>, Andi Kleen <ak@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>, Michael Ellerman <mpe@...erman.id.au>, Joerg Roedel <joro@...tes.org>, Paolo Bonzini <pbonzini@...hat.com>, Radim Krčmář <rkrcmar@...hat.com>, "the arch/x86 maintainers" <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>, kasan-dev <kasan-dev@...glegroups.com>, Linux PM list <linux-pm@...r.kernel.org>, linux-efi@...r.kernel.org, xen-devel@...ts.xenproject.org, lguest@...ts.ozlabs.org, kvm list <kvm@...r.kernel.org>, Kernel Hardening <kernel-hardening@...ts.openwall.com> Subject: Re: [PATCH v3 2/4] x86: Remap GDT tables in the Fixmap section On Wed, Feb 15, 2017 at 7:37 AM, Boris Ostrovsky <boris.ostrovsky@...cle.com> wrote: > On 02/14/2017 02:42 PM, Thomas Garnier wrote: >> diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c >> index 0dee6f59ea82..6399bab936cd 100644 >> --- a/arch/x86/xen/smp.c >> +++ b/arch/x86/xen/smp.c >> @@ -391,7 +391,7 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle) >> if (ctxt == NULL) >> return -ENOMEM; >> >> - gdt = get_cpu_gdt_table(cpu); >> + gdt = get_cpu_gdt_rw(cpu); >> >> #ifdef CONFIG_X86_32 >> ctxt->user_regs.fs = __KERNEL_PERCPU; > > > Which tree are these patches against? The chunk above cannot be applied > to current Linus tree but it can be applied against Xen staging tree > that has not been pulled yet. > > I can apply this manually but the series crashes PV guests so I want to > make sure I am using right bits. > That was against linux-next (next-20170213 tag). > -boris > > -- Thomas
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