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| author | Rusty Russell <rusty@rustcorp.com.au> | 2009-07-30 22:03:45 (GMT) |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2009-07-30 06:33:46 (GMT) |
| commit | a91d74a3c4de8115295ee87350c13a329164aaaf (patch) | |
| tree | 02c862fccc9abedf7fc354061e69c4b5fbcce06d /arch/x86/lguest/i386_head.S | |
| parent | 2e04ef76916d1e29a077ea9d0f2003c8fd86724d (diff) | |
| download | linux-a91d74a3c4de8115295ee87350c13a329164aaaf.tar.xz | |
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 <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'arch/x86/lguest/i386_head.S')
| -rw-r--r-- | arch/x86/lguest/i386_head.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/lguest/i386_head.S b/arch/x86/lguest/i386_head.S index db6aa95..27eac0f 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 |