From: David Gibson <david@gibson.dropbear.id.au>
To: Andrew Jones <drjones@redhat.com>
Cc: kvm@vger.kernel.org, kvm-ppc@vger.kernel.org, thuth@redhat.com,
dgibson@redhat.com, agraf@suse.de, lvivier@redhat.com,
pbonzini@redhat.com
Subject: Re: [kvm-unit-tests PATCH v4 10/17] powerpc/ppc64: add a boot rom
Date: Wed, 17 Feb 2016 12:50:13 +1100 [thread overview]
Message-ID: <20160217015013.GC5239@voom.redhat.com> (raw)
In-Reply-To: <1455544166-19766-11-git-send-email-drjones@redhat.com>
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On Mon, Feb 15, 2016 at 02:49:19PM +0100, Andrew Jones wrote:
> Make a one line replacement for SLOF. This bootloader just
> jumps to 0x400000, because we know the kernel will be there.
>
> Signed-off-by: Andrew Jones <drjones@redhat.com>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> Tested-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
> ---
> powerpc/.gitignore | 1 +
> powerpc/Makefile.common | 11 +++++++++--
> powerpc/boot_rom.S | 5 +++++
> 3 files changed, 15 insertions(+), 2 deletions(-)
> create mode 100644 powerpc/.gitignore
> create mode 100644 powerpc/boot_rom.S
>
> diff --git a/powerpc/.gitignore b/powerpc/.gitignore
> new file mode 100644
> index 0000000000000..2f017a8e61d4b
> --- /dev/null
> +++ b/powerpc/.gitignore
> @@ -0,0 +1 @@
> +boot_rom.bin
> diff --git a/powerpc/Makefile.common b/powerpc/Makefile.common
> index 13b828ab171d6..0c3eaba0d3aab 100644
> --- a/powerpc/Makefile.common
> +++ b/powerpc/Makefile.common
> @@ -11,7 +11,7 @@ endif
> tests-common = \
> $(TEST_DIR)/selftest.elf
>
> -all: test_cases
> +all: $(TEST_DIR)/boot_rom.bin test_cases
>
> ##################################################################
> phys_base = $(LOADADDR)
> @@ -40,8 +40,15 @@ FLATLIBS = $(libcflat) $(LIBFDT_archive) $(libgcc)
> -Wl,-T,powerpc/flat.lds,--build-id=none,-Ttext=$(start_addr) \
> $(filter %.o, $^) $(FLATLIBS)
>
> +$(TEST_DIR)/boot_rom.bin: $(TEST_DIR)/boot_rom.elf
> + dd if=/dev/zero of=$@ bs=256 count=1
> + $(OBJCOPY) -O binary $^ >(cat - >>$@)
> +
> +$(TEST_DIR)/boot_rom.elf: $(TEST_DIR)/boot_rom.o
> + $(LD) -nostdlib -Ttext=0x100 --entry=start --build-id=none -o $@ $<
> +
> powerpc_clean: libfdt_clean asm_offsets_clean
> - $(RM) $(TEST_DIR)/*.{o,elf} \
> + $(RM) $(TEST_DIR)/*.{o,elf} $(TEST_DIR)/boot_rom.bin \
> $(TEST_DIR)/.*.d lib/powerpc/.*.d
>
> ##################################################################
> diff --git a/powerpc/boot_rom.S b/powerpc/boot_rom.S
> new file mode 100644
> index 0000000000000..ae2c08ddce3c1
> --- /dev/null
> +++ b/powerpc/boot_rom.S
> @@ -0,0 +1,5 @@
> +#define SPAPR_KERNEL_LOAD_ADDR 0x400000
> +.text
> +.globl start
> +start:
> + b SPAPR_KERNEL_LOAD_ADDR - 0x100
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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next prev parent reply other threads:[~2016-02-17 6:50 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-15 13:49 [kvm-unit-tests PATCH v4 00/17] ppc64: initial drop Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 01/17] arm/arm64: trivial: another assert fix Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 02/17] Makefile: cscope: also look in arch shared asm Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 03/17] lib: asm-generic: add missing casts Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 04/17] devicetree: fix dt_get_memory_params Andrew Jones
2016-02-16 6:11 ` David Gibson
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 05/17] arm/arm64: setup improvements Andrew Jones
2016-02-16 6:15 ` David Gibson
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 06/17] lib: share arm-selftest utility functions Andrew Jones
2016-02-17 0:14 ` David Gibson
2016-02-17 12:17 ` Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 07/17] config: no need to mix arch makefiles Andrew Jones
2016-02-17 1:18 ` David Gibson
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 08/17] powerpc/ppc64: start skeleton framework Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 09/17] powerpc/ppc64: ppc-ify makefiles and linker script Andrew Jones
2016-02-17 1:45 ` David Gibson
2016-02-17 12:21 ` Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 10/17] powerpc/ppc64: add a boot rom Andrew Jones
2016-02-17 1:50 ` David Gibson [this message]
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 11/17] powerpc/ppc64: add hcall support and putchar Andrew Jones
2016-02-17 2:04 ` David Gibson
2016-02-17 12:34 ` Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 12/17] powerpc/ppc64: adapt arm's setup Andrew Jones
2016-02-17 2:11 ` David Gibson
2016-02-17 12:45 ` Andrew Jones
2016-02-17 17:34 ` Andrew Jones
2016-02-18 0:05 ` David Gibson
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 13/17] powerpc/ppc64: relocate linker VMAs Andrew Jones
2016-02-17 2:14 ` David Gibson
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 14/17] powerpc/ppc64: add run script and unittests.cfg Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 15/17] mkstandalone: add support for powerpc Andrew Jones
2016-02-17 12:51 ` Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 16/17] powerpc/ppc64: add RTAS support Andrew Jones
2016-02-15 13:49 ` [kvm-unit-tests PATCH v4 17/17] powerpc/ppc64: make a fake debug-exit Andrew Jones
2016-02-16 17:32 ` [kvm-unit-tests PATCH v4 00/17] ppc64: initial drop Paolo Bonzini
2016-02-16 17:44 ` Andrew Jones
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