TononixOS/ubports_kernel_google_msm
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

lguest: move the initial guest page table creation code to the host

Browse Source 
This patch moves the initial guest page table creation code to the host,
so the launcher keeps working with PAE enabled configs.

Signed-off-by: Matias Zabaljauregui <zabaljauregui@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Matias Zabaljauregui
2008-09-29 01:40:07 -03:00
committed by Rusty Russell
parent be3c5832d5
commit 58a2456644
6 changed files with 83 additions and 81 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/x86/lguest/i386_head.S
View File

@@ -30,21 +30,6 @@ ENTRY(lguest_entry)
movl $lguest_data - __PAGE_OFFSET, %edx
int $LGUEST_TRAP_ENTRY
/* The Host put the toplevel pagetable in lguest_data.pgdir. The movsl
* instruction uses %esi implicitly as the source for the copy we're
* about to do. */
movl lguest_data - __PAGE_OFFSET + LGUEST_DATA_pgdir, %esi
/* Copy first 32 entries of page directory to __PAGE_OFFSET entries.
* This means the first 128M of kernel memory will be mapped at
* PAGE_OFFSET where the kernel expects to run. This will get it far
* enough through boot to switch to its own pagetables. */
movl $32, %ecx
movl %esi, %edi
addl $((__PAGE_OFFSET >> 22) * 4), %edi
rep
movsl
/* Set up the initial stack so we can run C code. */
movl $(init_thread_union+THREAD_SIZE),%esp