On Thu, Dec 13, 2012 at 3:27 PM, H. Peter Anvin wrote:
> if we depend on other
> things we should make that explicit, not just here but in boot.txt.
please check lines for boot.txt
---
64-bit BOOT PROTOCOL
For machine with 64bit cpus and 64bit kernel, we could use 64bit bootloader
We
On 12/13/2012 05:00 PM, Yinghai Lu wrote:
> On Thu, Dec 13, 2012 at 4:54 PM, H. Peter Anvin wrote:
>> On 12/13/2012 04:51 PM, Yinghai Lu wrote:
>
>>> also need to make sure zero page and command line get ident mapping.
>>> because arch/x86/boot/compressed/head_64.S is using them.
>>>
>>
>> ...
On Thu, Dec 13, 2012 at 4:54 PM, H. Peter Anvin wrote:
> On 12/13/2012 04:51 PM, Yinghai Lu wrote:
>> also need to make sure zero page and command line get ident mapping.
>> because arch/x86/boot/compressed/head_64.S is using them.
>>
>
> ... or we need to do the same kind of thing there.
>
your
On 12/13/2012 04:51 PM, Yinghai Lu wrote:
On Thu, Dec 13, 2012 at 4:44 PM, Yinghai Lu wrote:
On Thu, Dec 13, 2012 at 4:38 PM, H. Peter Anvin wrote:
On 12/13/2012 04:13 PM, Yinghai Lu wrote:
It is definitely the minmum we can rely on, and so is the minimum we should
rely on. In fact, we
On Thu, Dec 13, 2012 at 4:44 PM, Yinghai Lu wrote:
> On Thu, Dec 13, 2012 at 4:38 PM, H. Peter Anvin wrote:
>> On 12/13/2012 04:13 PM, Yinghai Lu wrote:
>>
>> It is definitely the minmum we can rely on, and so is the minimum we should
>> rely on. In fact, we don't even need .bss/.brk to be
On 12/13/2012 04:44 PM, Yinghai Lu wrote:
On Thu, Dec 13, 2012 at 4:38 PM, H. Peter Anvin wrote:
On 12/13/2012 04:13 PM, Yinghai Lu wrote:
It is definitely the minmum we can rely on, and so is the minimum we should
rely on. In fact, we don't even need .bss/.brk to be mapped, but we
probably
On Thu, Dec 13, 2012 at 4:38 PM, H. Peter Anvin wrote:
> On 12/13/2012 04:13 PM, Yinghai Lu wrote:
>
> It is definitely the minmum we can rely on, and so is the minimum we should
> rely on. In fact, we don't even need .bss/.brk to be mapped, but we
> probably should require that as a matter of
On 12/13/2012 04:13 PM, Yinghai Lu wrote:
On Thu, Dec 13, 2012 at 3:27 PM, H. Peter Anvin wrote:
On 12/13/2012 02:02 PM, Yinghai Lu wrote:
+ * If we come here from a bootloader, kernel(text+data+bss+brk),
+ * ramdisk, zero_page, command line could be above 4G.
+ * We depend on
On Thu, Dec 13, 2012 at 3:27 PM, H. Peter Anvin wrote:
> On 12/13/2012 02:02 PM, Yinghai Lu wrote:
>> + * If we come here from a bootloader, kernel(text+data+bss+brk),
>> + * ramdisk, zero_page, command line could be above 4G.
>> + * We depend on an identity mapped page table being
On 12/13/2012 02:02 PM, Yinghai Lu wrote:
> + * If we come here from a bootloader, kernel(text+data+bss+brk),
> + * ramdisk, zero_page, command line could be above 4G.
> + * We depend on an identity mapped page table being provided
> + * that maps our entire
Now 64bit entry is fixed on 0x200, can not be changed anymore.
Update the comments to reflect that.
Signed-off-by: Yinghai Lu
---
arch/x86/boot/compressed/head_64.S | 22 +-
1 file changed, 13 insertions(+), 9 deletions(-)
diff --git a/arch/x86/boot/compressed/head_64.S
Now 64bit entry is fixed on 0x200, can not be changed anymore.
Update the comments to reflect that.
Signed-off-by: Yinghai Lu ying...@kernel.org
---
arch/x86/boot/compressed/head_64.S | 22 +-
1 file changed, 13 insertions(+), 9 deletions(-)
diff --git
On 12/13/2012 02:02 PM, Yinghai Lu wrote:
+ * If we come here from a bootloader, kernel(text+data+bss+brk),
+ * ramdisk, zero_page, command line could be above 4G.
+ * We depend on an identity mapped page table being provided
+ * that maps our entire
On Thu, Dec 13, 2012 at 3:27 PM, H. Peter Anvin h...@zytor.com wrote:
On 12/13/2012 02:02 PM, Yinghai Lu wrote:
+ * If we come here from a bootloader, kernel(text+data+bss+brk),
+ * ramdisk, zero_page, command line could be above 4G.
+ * We depend on an identity mapped page
On 12/13/2012 04:13 PM, Yinghai Lu wrote:
On Thu, Dec 13, 2012 at 3:27 PM, H. Peter Anvin h...@zytor.com wrote:
On 12/13/2012 02:02 PM, Yinghai Lu wrote:
+ * If we come here from a bootloader, kernel(text+data+bss+brk),
+ * ramdisk, zero_page, command line could be above 4G.
+ *
On Thu, Dec 13, 2012 at 4:38 PM, H. Peter Anvin h...@zytor.com wrote:
On 12/13/2012 04:13 PM, Yinghai Lu wrote:
It is definitely the minmum we can rely on, and so is the minimum we should
rely on. In fact, we don't even need .bss/.brk to be mapped, but we
probably should require that as a
On 12/13/2012 04:44 PM, Yinghai Lu wrote:
On Thu, Dec 13, 2012 at 4:38 PM, H. Peter Anvin h...@zytor.com wrote:
On 12/13/2012 04:13 PM, Yinghai Lu wrote:
It is definitely the minmum we can rely on, and so is the minimum we should
rely on. In fact, we don't even need .bss/.brk to be mapped,
On Thu, Dec 13, 2012 at 4:44 PM, Yinghai Lu ying...@kernel.org wrote:
On Thu, Dec 13, 2012 at 4:38 PM, H. Peter Anvin h...@zytor.com wrote:
On 12/13/2012 04:13 PM, Yinghai Lu wrote:
It is definitely the minmum we can rely on, and so is the minimum we should
rely on. In fact, we don't even
On 12/13/2012 04:51 PM, Yinghai Lu wrote:
On Thu, Dec 13, 2012 at 4:44 PM, Yinghai Lu ying...@kernel.org wrote:
On Thu, Dec 13, 2012 at 4:38 PM, H. Peter Anvin h...@zytor.com wrote:
On 12/13/2012 04:13 PM, Yinghai Lu wrote:
It is definitely the minmum we can rely on, and so is the minimum we
On Thu, Dec 13, 2012 at 4:54 PM, H. Peter Anvin h...@zytor.com wrote:
On 12/13/2012 04:51 PM, Yinghai Lu wrote:
also need to make sure zero page and command line get ident mapping.
because arch/x86/boot/compressed/head_64.S is using them.
... or we need to do the same kind of thing there.
On 12/13/2012 05:00 PM, Yinghai Lu wrote:
On Thu, Dec 13, 2012 at 4:54 PM, H. Peter Anvin h...@zytor.com wrote:
On 12/13/2012 04:51 PM, Yinghai Lu wrote:
also need to make sure zero page and command line get ident mapping.
because arch/x86/boot/compressed/head_64.S is using them.
... or
On Thu, Dec 13, 2012 at 3:27 PM, H. Peter Anvin h...@zytor.com wrote:
if we depend on other
things we should make that explicit, not just here but in boot.txt.
please check lines for boot.txt
---
64-bit BOOT PROTOCOL
For machine with 64bit cpus and 64bit kernel, we could use 64bit
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