https://bugzilla.kernel.org/show_bug.cgi?id=65561 --- Comment #31 from Jidong Xiao <jidong.xiao@xxxxxxxxx> --- Hi, Paolo, I added a sti instruction in kvm-unit-tests:x86/debug.c, like this: asm volatile( "pushf\n\t" "pop %%rax\n\t" "sti\n\t" "or $(1<<8),%%rax\n\t" "push %%rax\n\t" "lea (%%rip),%0\n\t" "popf\n\t" "and $~(1<<8),%%rax\n\t" "push %%rax\n\t" "popf\n\t" : "=g" (start) : : "rax"); report("single step", n == 3 && bp_addr[0] == start+1+6 && dr6[0] == 0xffff4ff0 && bp_addr[1] == start+1+6+1 && dr6[1] == 0xffff4ff0 && bp_addr[2] == start+1+6+1+1 && dr6[2] == 0xffff4ff0); And then make, and run the test, it looks like everything is okay. linux:~/code/kvm-unit-tests # /usr/local2/bin/qemu-system-x86_64 -enable-kvm -device pc-testdev -serial stdio -device isa-debug-exit,iobase=0xf4,iosize=0x4 -kernel ./x86/debug.flat enabling apic PASS: #BP PASS: hw breakpoint PASS: single step PASS: hw watchpoint I also tried to add a cli before sti, and the test also passed. -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
