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Subject[PATCH v7u1 06/31] x86, 64bit, realmode: use init_level4_pgt to set trapmoline_pgt directly
Date
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

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


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