From a91d74a3c4de8115295ee87350c13a329164aaaf Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 30 Jul 2009 16:03:45 -0600 Subject: lguest: update commentry Every so often, after code shuffles, I need to go through and unbitrot the Lguest Journey (see drivers/lguest/README). Since we now use RCU in a simple form in one place I took the opportunity to expand that explanation. Signed-off-by: Rusty Russell Cc: Ingo Molnar Cc: Paul McKenney --- arch/x86/lguest/i386_head.S | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/x86/lguest/i386_head.S') diff --git a/arch/x86/lguest/i386_head.S b/arch/x86/lguest/i386_head.S index db6aa95eb054..27eac0faee48 100644 --- a/arch/x86/lguest/i386_head.S +++ b/arch/x86/lguest/i386_head.S @@ -102,6 +102,7 @@ send_interrupts: * create one manually here. */ .byte 0x0f,0x01,0xc1 /* KVM_HYPERCALL */ + /* Put eax back the way we found it. */ popl %eax ret @@ -125,6 +126,7 @@ ENTRY(lg_restore_fl) jnz send_interrupts /* Again, the normal path has used no extra registers. Clever, huh? */ ret +/*:*/ /* These demark the EIP range where host should never deliver interrupts. */ .global lguest_noirq_start -- cgit v1.2.1