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SubjectRe: [PATCH v7u1 06/31] x86, 64bit, realmode: use init_level4_pgt to set trapmoline_pgt directly
On Thu, Jan 03, 2013 at 04:48:26PM -0800, Yinghai Lu wrote:
> with #PF handler way to set early page table, level3_ident will go away with
> 64bit native path.
>
> So just use entries in init_level4_pgt to set them in tramopline_pgt

s/tramopline_pgt/trampoline_pgd/.

>
> Signed-off-by: Yinghai Lu <yinghai@kernel.org>
> Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
> ---
> arch/x86/realmode/init.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
> index b96fe6f..384b3f4 100644
> --- a/arch/x86/realmode/init.c
> +++ b/arch/x86/realmode/init.c
> @@ -78,8 +78,8 @@ void __init setup_real_mode(void)
> *trampoline_cr4_features = read_cr4();
>
> trampoline_pgd = (u64 *) __va(real_mode_header->trampoline_pgd);
> - trampoline_pgd[0] = __pa_symbol(level3_ident_pgt) + _KERNPG_TABLE;
> - trampoline_pgd[511] = __pa_symbol(level3_kernel_pgt) + _KERNPG_TABLE;
> + trampoline_pgd[0] = init_level4_pgt[pgd_index(__PAGE_OFFSET)].pgd;
> + trampoline_pgd[511] = init_level4_pgt[511].pgd;
> #endif
> }
>
> --
> 1.7.10.4
>
>

--
Regards/Gruss,
Boris.


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