xen/common/domctl.c long do_domctl(XEN_GUEST_HANDLE(xen_domctl_t) u_domctl) { (snip) case XEN_DOMCTL_irq_permission: { struct domain *d; unsigned int pirq = op->u.irq_permission.pirq; とりあえず，受けるドメイン側は，ここをパスすれば，pirq…

#include <fenv.h> #include <signal.h> #include <stdio.h> void sgn() { int val; val = fegetround(); printf("%d\n", val); fesetround(FE_UPWARD); } int main(void) { int val; fesetround(FE_DOWNWARD); signal(SIGUSR1, sgn); val = fegetround(); printf("%d\n", val); raise(S</stdio.h></signal.h></fenv.h>…