diff options
Diffstat (limited to 'pk/frontend.c')
-rw-r--r-- | pk/frontend.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/pk/frontend.c b/pk/frontend.c new file mode 100644 index 0000000..c4e799b --- /dev/null +++ b/pk/frontend.c @@ -0,0 +1,26 @@ +#include "pk.h" +#include "atomic.h" +#include "frontend.h" +#include "pcr.h" + +sysret_t frontend_syscall(long n, long a0, long a1, long a2, long a3) +{ + static volatile long magic_mem[8]; + + static spinlock_t lock = SPINLOCK_INIT; + spinlock_lock(&lock); + + magic_mem[0] = n; + magic_mem[1] = a0; + magic_mem[2] = a1; + magic_mem[3] = a2; + magic_mem[4] = a3; + + mtpcr(magic_mem,16); + while(mfpcr(17) == 0); + + sysret_t ret = {magic_mem[0],magic_mem[1]}; + + spinlock_unlock(&lock); + return ret; +} |