Hi Konrad,
On 23/09/16 02:35, Konrad Rzeszutek Wilk wrote:
diff --git a/xen/test/livepatch/xen_nop.c b/xen/test/livepatch/xen_nop.c
new file mode 100644
index 000..69dcbca
--- /dev/null
+++ b/xen/test/livepatch/xen_nop.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2016 Oracle and/or its
.snip..
> > While on ARM32 there are 24 bytes:
> >
> > e52db004push{fp}
> > e28db000add fp, sp, #0 <- NOP
> > e3a8mov r0, #8 <- NOP
> > e24bd000sub sp, fp, #0 <- NOP
> > e49db004pop {fp}
> > e12fff1ebx lr
Hi Konrad,
On 21/09/16 18:32, Konrad Rzeszutek Wilk wrote:
The test-case is quite simple - we NOP the 'xen_minor_version'.
The amount of NOPs depends on the architecture.
On x86 the function is 11 bytes long:
55 push %rbp <- NOP
48 89 e5mov
The test-case is quite simple - we NOP the 'xen_minor_version'.
The amount of NOPs depends on the architecture.
On x86 the function is 11 bytes long:
55 push %rbp <- NOP
48 89 e5mov%rsp,%rbp <- NOP
b8 04 00 00 00 mov$0x4,%eax
