Xen devel - Apr 2006 - [PATCH][SVM][3/5] add SVM PAE support

SVM patch to add PAE support.

Applies cleanly to 9622.
Please apply.

Signed-off-by: Tom Woller <thomas.woller@amd.com>


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Hi,

Can someone let me know what exactly the array "hypercall_page "
contains?
Are they function pointers?

How do I know which functions are going to be called when a HYPERVISOR_xxx 
is called?

For instance, when the following asm code is to be executed:

define _hypercall3(type, sched_op, a1, a2, a3)                     \
({                                                              \
        long __res, __ign1, __ign2, __ign3;                     \
        asm volatile (                                          \
                "call hypercall_page +
("STR(__HYPERVISOR_##name)" * 32)"\
                : "=a" (__res), "=b" (__ign1),
"=c" (__ign2),   \
                "=d" (__ign3)                                   \
                : "1" ((long)(a1)), "2" ((long)(a2)),       
\
                "3" ((long)(a3))                                \
                : "memory" );                                   \
        (type)__res;                                            \
})

The #define for __HYPERVISOR_sched_op is 6

how do I find out which subroutine is the "call" going to call?

The above asm code is present in /arch/xen/kernel/hypercall.h

thanks !

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