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From: Arvind Sankar <nivedita@alum.mit.edu>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Ard Biesheuvel <ardb@kernel.org>,
	linux-efi@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org,
	Arvind Sankar <nivedita@alum.mit.edu>,
	Atish Patra <atish.patra@wdc.com>,
	Palmer Dabbelt <palmerdabbelt@google.com>,
	Zou Wei <zou_wei@huawei.com>
Subject: Re: [PATCH 03/33] efi/libstub: Unify EFI call wrappers for non-x86
Date: Sun, 3 May 2020 12:09:43 -0400	[thread overview]
Message-ID: <20200503160943.GA718804@rani.riverdale.lan> (raw)
In-Reply-To: <20200503150906.GA57805@roeck-us.net>

On Sun, May 03, 2020 at 08:09:06AM -0700, Guenter Roeck wrote:
> Hi,
> 
> On Fri, Apr 24, 2020 at 03:05:01PM +0200, Ard Biesheuvel wrote:
> > We have wrappers around EFI calls so that x86 can define special
> > versions for mixed mode, while all other architectures can use the
> > same simple definition that just issues the call directly.
> > In preparation for the arrival of yet another architecture that doesn't
> > need anything special here (RISC-V), let's move the default definition
> > into a shared header.
> > 
> > Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
> 
> This patch causes an immediate reboot in linux-next when booting
> in qemu with an efi32 bios. Bisect log attached.
> 
> Qemu command line:
> 
> qemu-system-x86_64 -kernel arch/x86/boot/bzImage -m 1G \
> 	-no-reboot -snapshot \
> 	-bios OVMF-pure-efi-32.fd \
> 	-drive file=rootfs.ext2,format=raw \
> 	--append 'earlycon=uart8250,io,0x3f8,9600n8 panic=-1 root=/dev/sda console=ttyS0' \
> 	-nographic
> 
> The same command succeeds with OVMF-pure-efi-64.fd.
> 
> Bisect log attached.
> 
> File locations:
> 	https://github.com/groeck/linux-build-test/blob/master/rootfs/firmware/OVMF-pure-efi-32.fd
> 	https://github.com/groeck/linux-build-test/blob/master/rootfs/x86_64/rootfs.ext2.gz
> 
> Guenter
> 

The issue is that efi_is_native is an inline function on x86, not a
macro, so the #ifndef efi_is_native is broken.

We can either turn it into a macro, or add
	#define efi_is_native efi_is_native
in arch/x86/include/asm/efi.h.

  reply	other threads:[~2020-05-03 16:09 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-24 13:04 [GIT PULL 00/33] EFI updates for v5.8 Ard Biesheuvel
2020-04-24 13:04 ` [PATCH 01/33] efi/libstub: Move arm-stub to a common file Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 02/33] efi/libstub: Make initrd file loader configurable Ard Biesheuvel
2020-04-24 13:15   ` Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 03/33] efi/libstub: Unify EFI call wrappers for non-x86 Ard Biesheuvel
2020-05-03 15:09   ` Guenter Roeck
2020-05-03 16:09     ` Arvind Sankar [this message]
2020-05-03 16:11       ` Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 04/33] efi/libstub/arm: Make install_memreserve_table static Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 05/33] efi/gop: Remove redundant current_fb_base Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 06/33] efi/gop: Move check for framebuffer before con_out Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 07/33] efi/gop: Get mode information outside the loop Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 08/33] efi/gop: Factor out locating the gop into a function Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 09/33] efi/gop: Slightly re-arrange logic of find_gop Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 10/33] efi/gop: Move variable declarations into loop block Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 11/33] efi/gop: Use helper macros for populating lfb_base Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 12/33] efi/gop: Use helper macros for find_bits Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 13/33] efi/gop: Remove unreachable code from setup_pixel_info Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 14/33] efi/gop: Add prototypes for query_mode and set_mode Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 15/33] efi/gop: Allow specifying mode number on command line Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 16/33] efi/gop: Allow specifying mode by <xres>x<yres> Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 17/33] efi/gop: Allow specifying depth as well as resolution Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 18/33] efi/gop: Allow automatically choosing the best mode Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 19/33] efi/libstub/random: Align allocate size to EFI_ALLOC_ALIGN Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 20/33] efi/libstub/random: Increase random alloc granularity Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 21/33] efi/libstub/arm64: Replace 'preferred' offset with alignment check Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 22/33] efi/libstub/arm64: Simplify randomized loading of kernel image Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 23/33] efi/libstub: Add API function to allocate aligned memory Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 24/33] efi/libstub/arm64: Switch to ordinary page allocator for kernel image Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 25/33] efi/libstub: Move efi_relocate_kernel() into separate source file Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 26/33] efi/arm: Remove __efistub_global annotation Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 27/33] efi/x86: Remove __efistub_global and add relocation check Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 28/33] efi: Kill __efistub_global Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 29/33] efi/libstub: Drop __pure getter for efi_system_table Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 30/33] efi/libstub: Drop __pure getters for EFI stub options Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 31/33] efi/libstub/x86: Avoid getter function for efi_is64 Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 32/33] efi: Clean up config table description arrays Ard Biesheuvel
2020-04-24 13:05 ` [PATCH 33/33] efi: Move arch_tables check to caller Ard Biesheuvel
2020-04-25  8:27 ` [GIT PULL 00/33] EFI updates for v5.8 Ingo Molnar
2020-04-25  9:57   ` Ard Biesheuvel

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