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| author | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-25 15:02:50 +1000 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-25 15:02:50 +1000 |
| commit | e1e72965ec2c02db99b415cd06c17ea90767e3a4 (patch) | |
| tree | 94e43aac35bdc33220e64f285b72b3b2b787fd57 /arch/x86/lguest/i386_head.S | |
| parent | 568a17ffce2eeceae0cd9fc37e97cbad12f70278 (diff) | |
lguest: documentation update
Went through the documentation doing typo and content fixes. This
patch contains only comment and whitespace changes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'arch/x86/lguest/i386_head.S')
| -rw-r--r-- | arch/x86/lguest/i386_head.S | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/x86/lguest/i386_head.S b/arch/x86/lguest/i386_head.S index ebc6ac73389..95b6fbcded6 100644 --- a/arch/x86/lguest/i386_head.S +++ b/arch/x86/lguest/i386_head.S @@ -6,7 +6,7 @@ #include <asm/processor-flags.h> /*G:020 This is where we begin: head.S notes that the boot header's platform - * type field is "1" (lguest), so calls us here. The boot header is in %esi. + * type field is "1" (lguest), so calls us here. * * WARNING: be very careful here! We're running at addresses equal to physical * addesses (around 0), not above PAGE_OFFSET as most code expectes @@ -17,13 +17,15 @@ * boot. */ .section .init.text, "ax", @progbits ENTRY(lguest_entry) - /* Make initial hypercall now, so we can set up the pagetables. */ + /* We make the "initialization" hypercall now to tell the Host about + * us, and also find out where it put our page tables. */ movl $LHCALL_LGUEST_INIT, %eax 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. */ + * instruction uses %esi implicitly as the source for the copy we' + * about to do. */ movl lguest_data - __PAGE_OFFSET + LGUEST_DATA_pgdir, %esi /* Copy first 32 entries of page directory to __PAGE_OFFSET entries. |