From: Yinghai Lu <yinghai@kernel.org>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org,
yinghai@kernel.org, caushik1@gmail.com, matt.fleming@intel.com,
jmillenbach@gmail.com, tglx@linutronix.de, josh@joshtriplett.org,
hpa@linux.intel.com, rob@landley.net
Subject: Re: [tip:x86/mm2] x86, boot: enable support load bzImage and ramdisk above 4G
Date: Tue, 29 Jan 2013 17:54:41 -0800 [thread overview]
Message-ID: <CAE9FiQWP-KRAppXUcYm7KYEJG_k5fMVCPgeZKoAEAUfdXuQXNA@mail.gmail.com> (raw)
In-Reply-To: <tip-8cf52eb755e5c5046d2a5d5d3b64d839677ed8ae@git.kernel.org>
On Tue, Jan 29, 2013 at 5:45 PM, tip-bot for Yinghai Lu
<yinghai@kernel.org> wrote:
> Commit-ID: 8cf52eb755e5c5046d2a5d5d3b64d839677ed8ae
> Gitweb: http://git.kernel.org/tip/8cf52eb755e5c5046d2a5d5d3b64d839677ed8ae
> Author: Yinghai Lu <yinghai@kernel.org>
> AuthorDate: Mon, 28 Jan 2013 20:16:44 -0800
> Committer: H. Peter Anvin <hpa@linux.intel.com>
> CommitDate: Tue, 29 Jan 2013 15:30:22 -0800
>
> x86, boot: enable support load bzImage and ramdisk above 4G
>
> xloadflags bit 1 indicates that we can load the kernel and all data
> structure above 4G; it is set if kernel is relocatable and 64bit.
>
> bootloader will check if xloadflags bit1 is set to decicde if
> it could load ramdisk and kernel high above 4G.
>
> bootloader will fill value to ext_ramdisk_image/size for high 32bits
> when it load ramdisk above 4G.
> kernel use get_ramdisk_image/size to use ext_ramdisk_image/size to get
> right positon for ramdisk.
>
> Signed-off-by: Yinghai Lu <yinghai@kernel.org>
> Cc: Rob Landley <rob@landley.net>
> Cc: Matt Fleming <matt.fleming@intel.com>
> Cc: Gokul Caushik <caushik1@gmail.com>
> Cc: Josh Triplett <josh@joshtriplett.org>
> Cc: Joe Millenbach <jmillenbach@gmail.com>
> Link: http://lkml.kernel.org/r/1359058816-7615-26-git-send-email-yinghai@kernel.org
> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
> ---
> arch/x86/boot/compressed/cmdline.c | 2 ++
> arch/x86/boot/compressed/misc.c | 19 +++++++++++++++++++
> arch/x86/boot/header.S | 10 +++++++++-
> arch/x86/kernel/head64.c | 2 ++
> arch/x86/kernel/setup.c | 4 ++++
> 5 files changed, 36 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/boot/compressed/cmdline.c b/arch/x86/boot/compressed/cmdline.c
> index b4c913c..bffd73b 100644
> --- a/arch/x86/boot/compressed/cmdline.c
> +++ b/arch/x86/boot/compressed/cmdline.c
> @@ -17,6 +17,8 @@ static unsigned long get_cmd_line_ptr(void)
> {
> unsigned long cmd_line_ptr = real_mode->hdr.cmd_line_ptr;
>
> + cmd_line_ptr |= (u64)real_mode->ext_cmd_line_ptr << 32;
> +
> return cmd_line_ptr;
> }
> int cmdline_find_option(const char *option, char *buffer, int bufsize)
> diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
> index 7cb56c6..5d8dc86 100644
> --- a/arch/x86/boot/compressed/misc.c
> +++ b/arch/x86/boot/compressed/misc.c
> @@ -318,6 +318,23 @@ static void parse_elf(void *output)
> free(phdrs);
> }
>
> +static void sanitize_real_mode(struct boot_params *real_mode)
> +{
> + if (real_mode->sentinel) {
> + /*fields in boot_params are not valid, clear them */
> + memset(&real_mode->olpc_ofw_header, 0,
> + (char *)&real_mode->alt_mem_k -
> + (char *)&real_mode->olpc_ofw_header);
> + memset(&real_mode->_pad7[0], 0,
> + (char *)&real_mode->edd_mbr_sig_buffer[0] -
> + (char *)&real_mode->_pad7[0]);
> + memset(&real_mode->_pad8[0], 0,
> + (char *)&real_mode->eddbuf[0] -
> + (char *)&real_mode->_pad8[0]);
> + memset(&real_mode->_pad9[0], 0, sizeof(real_mode->_pad9));
> + }
> +}
> +
> asmlinkage void decompress_kernel(void *rmode, memptr heap,
> unsigned char *input_data,
> unsigned long input_len,
> @@ -327,6 +344,8 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
>
> sanitize_boot_params(real_mode);
>
> + sanitize_real_mode(real_mode);
> +
Hi, Peter,
sanitize_real_mode() need to be dropped from this patch.
You already have complete patch sanitize_boot_params() applied before.
Thanks
Yinghai
next prev parent reply other threads:[~2013-01-30 1:54 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-24 20:19 [PATCH 00/35] x86, boot, 64bit: Add support for loading ramdisk and bzImage above 4G Yinghai Lu
2013-01-24 20:19 ` [PATCH 01/35] x86, mm: Fix page table early allocation offset checking Yinghai Lu
2013-01-30 1:20 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 02/35] x86: Handle multiple exactmaps and out of order exactmap Yinghai Lu
2013-01-24 20:19 ` [PATCH 03/35] x86, mm: Introduce memmap=reserveram Yinghai Lu
2013-01-24 20:19 ` [PATCH 04/35] x86: Clean up e820 add kernel range Yinghai Lu
2013-01-24 23:21 ` Jacob Shin
2013-01-30 1:21 ` [tip:x86/mm2] x86: Factor out e820_add_kernel_range() tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 05/35] x86, 64bit, mm: Make pgd next calculation consistent with pud/pmd Yinghai Lu
2013-01-30 1:22 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 06/35] x86, realmode: Set real_mode permissions early Yinghai Lu
2013-01-30 1:23 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 07/35] x86, 64bit, mm: Add generic kernel/ident mapping helper Yinghai Lu
2013-01-30 1:24 ` [tip:x86/mm2] x86, 64bit, mm: Add generic kernel/ ident " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 08/35] x86, 64bit: Copy zero-page early Yinghai Lu
2013-01-30 1:25 ` [tip:x86/mm2] x86, 64bit: Copy struct boot_params early tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 09/35] x86, 64bit, realmode: Use init_level4_pgt to set trapmoline_pgd directly Yinghai Lu
2013-01-30 1:27 ` [tip:x86/mm2] x86, 64bit, realmode: Use init_level4_pgt to set trampoline_pgd directly tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 10/35] x86, realmode: Separate real_mode reserve and setup Yinghai Lu
2013-01-30 1:28 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 11/35] x86, 64bit: early #PF handler set page table Yinghai Lu
2013-01-30 1:29 ` [tip:x86/mm2] x86, 64bit: Use a #PF handler to materialize early mappings on demand tip-bot for H. Peter Anvin
2013-01-24 20:19 ` [PATCH 12/35] x86, 64bit: #PF handler set page to cover only 2M per #PF Yinghai Lu
2013-01-30 1:30 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 13/35] x86, 64bit: Don't set max_pfn_mapped wrong value early on native path Yinghai Lu
2013-01-30 1:31 ` [tip:x86/mm2] x86, 64bit: Don' t " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 14/35] x86: Merge early_reserve_initrd for 32bit and 64bit Yinghai Lu
2013-01-30 1:32 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 15/35] x86: Add get_ramdisk_image/size() Yinghai Lu
2013-01-30 1:34 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 16/35] x86, boot: Add get_cmd_line_ptr() Yinghai Lu
2013-01-30 1:35 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 17/35] x86, boot: Move checking of cmd_line_ptr out of common path Yinghai Lu
2013-01-30 1:36 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:19 ` [PATCH 18/35] x86, boot: Pass cmd_line_ptr with unsigned long instead Yinghai Lu
2013-01-30 1:37 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 19/35] x86, boot: Move verify_cpu.S and no_longmode down Yinghai Lu
2013-01-30 1:38 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 20/35] x86, boot: Move lldt/ltr out of 64bit code section Yinghai Lu
2013-01-30 1:39 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 21/35] x86, kexec: Remove 1024G limitation for kexec buffer on 64bit Yinghai Lu
2013-01-30 1:40 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 22/35] x86, kexec: Set ident mapping for kernel that is above max_pfn Yinghai Lu
2013-01-30 1:42 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 23/35] x86, kexec: Replace ident_mapping_init and init_level4_page Yinghai Lu
2013-01-30 1:43 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 24/35] x86, kexec, 64bit: Only set ident mapping for ram Yinghai Lu
2013-01-30 1:44 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 25/35] x86, boot: Add fields to support load bzImage and ramdisk above 4G Yinghai Lu
2013-01-28 0:07 ` [tip:x86/boot] x86, boot: Define the 2.12 bzImage boot protocol tip-bot for H. Peter Anvin
2013-01-29 9:48 ` [tip:x86/boot] x86, boot: Sanitize boot_params if not zeroed on creation tip-bot for H. Peter Anvin
2013-01-30 1:45 ` [tip:x86/mm2] x86, boot: enable support load bzImage and ramdisk above 4G tip-bot for Yinghai Lu
2013-01-30 1:54 ` Yinghai Lu [this message]
2013-01-30 2:18 ` H. Peter Anvin
2013-01-30 3:47 ` [tip:x86/mm2] x86, boot: Support loading bzImage, boot_params " tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 26/35] x86, boot: Update comments about entries for 64bit image Yinghai Lu
2013-01-30 1:46 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-30 3:48 ` tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 27/35] x86, boot: Not need to check setup_header version for setup_data Yinghai Lu
2013-01-30 1:47 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-30 3:49 ` tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 28/35] memblock: Add memblock_mem_size() Yinghai Lu
2013-01-30 1:49 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-30 3:50 ` tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 29/35] x86, kdump: Remove crashkernel range find limit for 64bit Yinghai Lu
2013-01-30 1:50 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-30 3:51 ` tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 30/35] x86: Add Crash kernel low reservation Yinghai Lu
2013-01-30 1:51 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-02-07 5:14 ` Rob Landley
2013-02-07 6:39 ` Yinghai Lu
2013-01-30 3:52 ` tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 31/35] x86: Merge early kernel reserve for 32bit and 64bit Yinghai Lu
2013-01-30 1:52 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-30 3:53 ` tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 32/35] x86, 64bit, mm: Mark data/bss/brk to nx Yinghai Lu
2013-01-30 1:53 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-30 3:55 ` tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 33/35] x86, 64bit, mm: hibernate use generic mapping_init Yinghai Lu
2013-01-24 22:50 ` Rafael J. Wysocki
2013-01-30 1:54 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-30 3:56 ` tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 34/35] mm: Add alloc_bootmem_low_pages_nopanic() Yinghai Lu
2013-01-30 1:56 ` [tip:x86/mm2] " tip-bot for Yinghai Lu
2013-01-30 3:57 ` tip-bot for Yinghai Lu
2013-01-24 20:20 ` [PATCH 35/35] x86: Don't panic if can not alloc buffer for swiotlb Yinghai Lu
2013-01-25 16:47 ` Konrad Rzeszutek Wilk
2013-01-30 1:57 ` [tip:x86/mm2] x86: Don' t " tip-bot for Yinghai Lu
2013-01-30 3:58 ` tip-bot for Yinghai Lu
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