diff options
| author | Jes Sorensen <jes@sgi.com> | 2007-10-22 11:03:29 +1000 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2007-10-23 15:49:51 +1000 |
| commit | 4614a3a3b638dfd7a67d0237944f6a76331af61d (patch) | |
| tree | 8ec25721127eb899b97e46551b1644644ca698ac /drivers/lguest/x86/switcher_32.S | |
| parent | 625efab1cd3d4da4634dfe26df6b4005385397e2 (diff) | |
| download | lwn-4614a3a3b638dfd7a67d0237944f6a76331af61d.tar.gz lwn-4614a3a3b638dfd7a67d0237944f6a76331af61d.zip | |
Reorder guest saved regs to match hyperall order
Move eax next to ebx/ecx/edx in struct lguest_regs on i386, so they
will be located together and allow it to map directly to a struct
hcall_ring entry (which will be renamed struct hcall_args as in a
subsequent patch).
This is in preparation for making the code hcall code architecture
independent.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/lguest/x86/switcher_32.S')
| -rw-r--r-- | drivers/lguest/x86/switcher_32.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/lguest/x86/switcher_32.S b/drivers/lguest/x86/switcher_32.S index e66cec5ac240..1010b90b11fc 100644 --- a/drivers/lguest/x86/switcher_32.S +++ b/drivers/lguest/x86/switcher_32.S @@ -133,6 +133,7 @@ ENTRY(switch_to_guest) // The Guest's register page has been mapped // Writable onto our %esp (stack) -- // We can simply pop off all Guest regs. + popl %eax popl %ebx popl %ecx popl %edx @@ -140,7 +141,6 @@ ENTRY(switch_to_guest) popl %edi popl %ebp popl %gs - popl %eax popl %fs popl %ds popl %es @@ -168,7 +168,6 @@ ENTRY(switch_to_guest) pushl %es; \ pushl %ds; \ pushl %fs; \ - pushl %eax; \ pushl %gs; \ pushl %ebp; \ pushl %edi; \ @@ -176,6 +175,7 @@ ENTRY(switch_to_guest) pushl %edx; \ pushl %ecx; \ pushl %ebx; \ + pushl %eax; \ /* Our stack and our code are using segments \ * Set in the TSS and IDT \ * Yet if we were to touch data we'd use \ |