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([2600:1011:b01e:e4d1:54df:ba07:cac1:aeab]) by smtp.gmail.com with ESMTPSA id i12-v6sm34268204pgd.87.2018.07.12.13.44.50 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 12 Jul 2018 13:44:50 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (1.0) Subject: Re: [PATCH 01/39] x86/asm-offsets: Move TSS_sp0 and TSS_sp1 to asm-offsets.c From: Andy Lutomirski X-Mailer: iPhone Mail (15F79) In-Reply-To: <1531308586-29340-2-git-send-email-joro@8bytes.org> Date: Thu, 12 Jul 2018 13:44:49 -0700 Cc: Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" , x86@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Linus Torvalds , Andy Lutomirski , Dave Hansen , Josh Poimboeuf , Juergen Gross , Peter Zijlstra , Borislav Petkov , Jiri Kosina , Boris Ostrovsky , Brian Gerst , David Laight , Denys Vlasenko , Eduardo Valentin , Greg KH , Will Deacon , aliguori@amazon.com, daniel.gruss@iaik.tugraz.at, hughd@google.com, keescook@google.com, Andrea Arcangeli , Waiman Long , Pavel Machek , "David H . Gutteridge" , jroedel@suse.de Content-Transfer-Encoding: quoted-printable Message-Id: <29DEB3A0-223F-4C28-920B-0C1C918F2B56@amacapital.net> References: <1531308586-29340-1-git-send-email-joro@8bytes.org> <1531308586-29340-2-git-send-email-joro@8bytes.org> To: Joerg Roedel Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Jul 11, 2018, at 4:29 AM, Joerg Roedel wrote: >=20 > From: Joerg Roedel >=20 > These offsets will be used in 32 bit assembly code as well, > so make them available for all of x86 code. Reviewed-by: Andy Lutomirski >=20 > Signed-off-by: Joerg Roedel > --- > arch/x86/kernel/asm-offsets.c | 4 ++++ > arch/x86/kernel/asm-offsets_64.c | 2 -- > 2 files changed, 4 insertions(+), 2 deletions(-) >=20 > diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c= > index dcb008c..a1e1628 100644 > --- a/arch/x86/kernel/asm-offsets.c > +++ b/arch/x86/kernel/asm-offsets.c > @@ -103,4 +103,8 @@ void common(void) { > OFFSET(CPU_ENTRY_AREA_entry_trampoline, cpu_entry_area, entry_trampolin= e); > OFFSET(CPU_ENTRY_AREA_entry_stack, cpu_entry_area, entry_stack_page); > DEFINE(SIZEOF_entry_stack, sizeof(struct entry_stack)); > + > + /* Offset for sp0 and sp1 into the tss_struct */ > + OFFSET(TSS_sp0, tss_struct, x86_tss.sp0); > + OFFSET(TSS_sp1, tss_struct, x86_tss.sp1); > } > diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offset= s_64.c > index b2dcd16..3b9405e 100644 > --- a/arch/x86/kernel/asm-offsets_64.c > +++ b/arch/x86/kernel/asm-offsets_64.c > @@ -65,8 +65,6 @@ int main(void) > #undef ENTRY >=20 > OFFSET(TSS_ist, tss_struct, x86_tss.ist); > - OFFSET(TSS_sp0, tss_struct, x86_tss.sp0); > - OFFSET(TSS_sp1, tss_struct, x86_tss.sp1); > BLANK(); >=20 > #ifdef CONFIG_STACKPROTECTOR > --=20 > 2.7.4 >=20