From: Brian Gerst <brgerst@gmail.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org
Cc: David Woodhouse <dwmw2@infradead.org>,
Usama Arif <usama.arif@bytedance.com>,
Thomas Gleixner <tglx@linutronix.de>,
Borislav Petkov <bp@alien8.de>, "H . Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
Andy Lutomirski <luto@kernel.org>, Ingo Molnar <mingo@kernel.org>,
Brian Gerst <brgerst@gmail.com>
Subject: [PATCH 0/6] x86-64: Remove global variables from boot
Date: Wed, 22 Feb 2023 17:12:55 -0500 [thread overview]
Message-ID: <20230222221301.245890-1-brgerst@gmail.com> (raw)
This is on top of the parallel boot v10 series.
Remove the global variables initial_gs, initial_stack, and
early_gdt_descr from the 64-bit boot code. The stack, GDT, and GSBASE
can be determined from the CPU number.
Brian Gerst (6):
x86/smpboot: Use CPU number instead of APIC ID for single CPU startup
x86/smpboot: Use current_task to get idle thread
x86/smpboot: Remove initial_stack on 64-bit
x86/smpbppt: Remove early_gdt_descr on 64-bit
x86/smpboot: Remove initial_gs
x86/smpboot: Simplify boot CPU setup
arch/x86/include/asm/processor.h | 6 +-
arch/x86/include/asm/realmode.h | 1 -
arch/x86/include/asm/smp.h | 1 -
arch/x86/kernel/acpi/sleep.c | 5 +-
arch/x86/kernel/asm-offsets.c | 1 +
arch/x86/kernel/head_64.S | 108 ++++++++++++-------------------
arch/x86/kernel/smpboot.c | 6 +-
arch/x86/xen/xen-head.S | 2 +-
kernel/smpboot.c | 2 +-
9 files changed, 53 insertions(+), 79 deletions(-)
--
2.39.2
next reply other threads:[~2023-02-22 22:13 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-22 22:12 Brian Gerst [this message]
2023-02-22 22:12 ` [PATCH 1/6] x86/smpboot: Use CPU number instead of APIC ID for single CPU startup Brian Gerst
2023-02-22 22:12 ` [PATCH 2/6] x86/smpboot: Use current_task to get idle thread Brian Gerst
2023-02-22 22:12 ` [PATCH 3/6] x86/smpboot: Remove initial_stack on 64-bit Brian Gerst
2023-02-23 8:05 ` David Woodhouse
2023-02-23 8:27 ` David Woodhouse
2023-02-22 22:12 ` [PATCH 4/6] x86/smpbppt: Remove early_gdt_descr " Brian Gerst
2023-02-23 6:49 ` H. Peter Anvin
2023-02-23 12:10 ` Brian Gerst
2023-02-22 22:13 ` [PATCH 5/6] x86/smpboot: Remove initial_gs Brian Gerst
2023-02-22 22:13 ` [PATCH 6/6] x86/smpboot: Simplify boot CPU setup Brian Gerst
2023-02-23 12:36 ` David Woodhouse
2023-02-23 13:44 ` [PATCH 0/6] x86-64: Remove global variables from boot David Woodhouse
2023-02-23 14:24 ` Brian Gerst
2023-02-23 19:14 ` [External] " Usama Arif
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