From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [kvm-unit-tests PATCH v4 10/17] powerpc/ppc64: add a boot rom
Date: Wed, 17 Feb 2016 12:50:13 +1100
Message-ID: <20160217015013.GC5239@voom.redhat.com>
References: <1455544166-19766-1-git-send-email-drjones@redhat.com>
 <1455544166-19766-11-git-send-email-drjones@redhat.com>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="B4IIlcmfBL/1gGOG"
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
To: Andrew Jones <drjones@redhat.com>
Return-path: <kvm-owner@vger.kernel.org>
Received: from ozlabs.org ([103.22.144.67]:56016 "EHLO ozlabs.org"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1756598AbcBQGuW (ORCPT <rfc822;kvm@vger.kernel.org>);
	Wed, 17 Feb 2016 01:50:22 -0500
Content-Disposition: inline
In-Reply-To: <1455544166-19766-11-git-send-email-drjones@redhat.com>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>


--B4IIlcmfBL/1gGOG
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

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.
>=20
> 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
>=20
> 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 =3D \
>  	$(TEST_DIR)/selftest.elf
> =20
> -all: test_cases
> +all: $(TEST_DIR)/boot_rom.bin test_cases
> =20
>  ##################################################################
>  phys_base =3D $(LOADADDR)
> @@ -40,8 +40,15 @@ FLATLIBS =3D $(libcflat) $(LIBFDT_archive) $(libgcc)
>  		-Wl,-T,powerpc/flat.lds,--build-id=3Dnone,-Ttext=3D$(start_addr) \
>  		$(filter %.o, $^) $(FLATLIBS)
> =20
> +$(TEST_DIR)/boot_rom.bin: $(TEST_DIR)/boot_rom.elf
> +	dd if=3D/dev/zero of=3D$@ bs=3D256 count=3D1
> +	$(OBJCOPY) -O binary $^ >(cat - >>$@)
> +
> +$(TEST_DIR)/boot_rom.elf: $(TEST_DIR)/boot_rom.o
> +	$(LD) -nostdlib -Ttext=3D0x100 --entry=3Dstart --build-id=3Dnone -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
> =20
>  ##################################################################
> 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

--=20
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

--B4IIlcmfBL/1gGOG
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=Vbpu
-----END PGP SIGNATURE-----

--B4IIlcmfBL/1gGOG--