From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Michael Ellerman <mpe@ellerman.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
j.neuschaefer@gmx.net
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v3 00/16] powerpc/32: Use BATs/LTLBs for STRICT_KERNEL_RWX
Date: Thu, 21 Feb 2019 07:31:36 +0100 [thread overview]
Message-ID: <82af8805-3e2a-cfb3-9df6-d883b50ff460@c-s.fr> (raw)
In-Reply-To: <87mumpx68h.fsf@concordia.ellerman.id.au>
Le 21/02/2019 à 02:47, Michael Ellerman a écrit :
> Christophe Leroy <christophe.leroy@c-s.fr> writes:
>
>> The purpose of this serie is to:
>> - use BATs with STRICT_KERNEL_RWX on book3s (See patch 13 for details.)
>> - use LTLBs with STRICT_KERNEL_RWX on 8xx (See patch 15 for a few details.)
>
> This doesn't boot qemu-mac99 for me:
>
> spawn ~/src/qemu/ppc-softmmu/qemu-system-ppc -nographic -vga none -M mac99 -m 1G -kernel build/vmlinux -initrd ppc32-initrd.gz -append console=ttyPZ0 init=/bin/sh
> >> =============================================================
> >> OpenBIOS 1.1 [Feb 15 2019 10:05]
> >> Configuration device id QEMU version 1 machine id 1
> >> CPUs: 1
> >> Memory: 1024M
> >> UUID: 00000000-0000-0000-0000-000000000000
> >> CPU type PowerPC,G4
> milliseconds isn't unique.
> Welcome to OpenBIOS v1.1 built on Feb 15 2019 10:05
> >> [ppc] Kernel already loaded (0x01000000 + 0x00c2c338) (initrd 0x01d2d000 + 0x007e72f0)
> >> [ppc] Kernel command line: console=ttyPZ0 init=/bin/sh
> >> switching to new context:
> OF stdout device is: /pci@f2000000/mac-io@c/escc@13000/ch-a@13020
> Preparing to boot Linux version 5.0.0-rc2-gcc-8.2.0-00125-g4fcb83ca7936 (michael@ka4) (gcc version 8.2.0 (Buildroot 2018.11-rc2-00003-ga0787e9)) #724 Thu Feb 21 12:03:14 AEDT 2019
> Detected machine type: 00000400
> command line:
> memory layout at init:
> memory_limit : 00000000 (16 MB aligned)
> alloc_bottom : 02515000
> alloc_top : 30000000
> alloc_top_hi : 40000000
> rmo_top : 30000000
> ram_top : 40000000
> copying OF device tree...
> Building dt strings...
> Building dt structure...
> Device tree strings 0x02516000 -> 0x025150a4
> Device tree struct 0x02517000 -> 0x3fde7eb0
> Quiescing Open Firmware ...
> Booting Linux via __start() @ 0x01000000 ...
> FAIL! Booting BE pmac32
>
>
> That's pmac32 defconfig ish.
> I haven't had time to debug it further sorry.
>
Ok. I boots fine without the '-m 1G'.
I'll find out why.
Christophe
next prev parent reply other threads:[~2019-02-21 6:31 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-20 17:29 Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 01/16] powerpc/wii: properly disable use of BATs when requested Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 02/16] powerpc/mm/32: add base address to mmu_mapin_ram() Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 03/16] powerpc/mm/32s: rework mmu_mapin_ram() Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 04/16] powerpc/mm/32s: use generic mmu_mapin_ram() for all blocks Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 05/16] powerpc/32: always populate page tables for Abatron BDI Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 06/16] powerpc/wii: remove wii_mmu_mapin_mem2() Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 07/16] powerpc/mm/32s: use _PAGE_EXEC in setbat() Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 08/16] powerpc/32: add helper to write into segment registers Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 09/16] powerpc/mmu: add is_strict_kernel_rwx() helper Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 10/16] powerpc/kconfig: define PAGE_SHIFT inside Kconfig Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 11/16] powerpc/kconfig: define CONFIG_DATA_SHIFT and CONFIG_ETEXT_SHIFT Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 12/16] powerpc/mm/32s: add setibat() clearibat() and update_bats() Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 13/16] powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 14/16] powerpc/kconfig: make _etext and data areas alignment configurable on Book3s 32 Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 15/16] powerpc/8xx: don't disable large TLBs with CONFIG_STRICT_KERNEL_RWX Christophe Leroy
2019-02-20 17:29 ` [PATCH v3 16/16] powerpc/kconfig: make _etext and data areas alignment configurable on 8xx Christophe Leroy
2019-02-21 1:47 ` [PATCH v3 00/16] powerpc/32: Use BATs/LTLBs for STRICT_KERNEL_RWX Michael Ellerman
2019-02-21 6:31 ` Christophe Leroy [this message]
2019-02-21 7:42 ` Christophe Leroy
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