Hi, all
I'm learning Xen with the help of the book The Definitive Guide to Xen
Hypervisor.
In Chapter 2 there's an example which outputs 'Hello World' to the emergency
console, the code snippet looks like
HYPERVISOR_console_io (CONSOLEIO_write , 12 ,"Hello World\n" ) ;
static inline int HYPERVISOR_console_io(int cmd, int count, char *str)
{
return _hypercall3(int, console_io, cmd, count, str);
}
while _hypercall3 is a macro calling corresponding function in the hypercall
page, in this example it will just call
do_console_io(CONSOLEIO_write, 12, "Hello World\n")';
but when i run xm create domain_config, i find message "Hello World"
nowhere.
Where can i see this message?
Many thanks for your reply.
I'm learning Xen with the help of the book The Definitive Guide to Xen
Hypervisor.
In Chapter 2 there's an example which outputs 'Hello World' to the emergency
console, the code snippet looks like
HYPERVISOR_console_io (CONSOLEIO_write , 12 ,"Hello World\n" ) ;
static inline int HYPERVISOR_console_io(int cmd, int count, char *str)
{
return _hypercall3(int, console_io, cmd, count, str);
}
while _hypercall3 is a macro calling corresponding function in the hypercall
page, in this example it will just call
do_console_io(CONSOLEIO_write, 12, "Hello World\n")';
but when i run xm create domain_config, i find message "Hello World"
nowhere.
Where can i see this message?
Many thanks for your reply.