From bd967e05da8cbb2c863b0c75632530966cafcc11 Mon Sep 17 00:00:00 2001 From: pbrook Date: Sun, 11 Mar 2007 18:54:57 +0000 Subject: SMP half-idle fix. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2477 c046a42c-6fe2-441c-8c8c-71466251a162 --- vl.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/vl.c b/vl.c index e871c8cea9..742f9000fe 100644 --- a/vl.c +++ b/vl.c @@ -6298,13 +6298,16 @@ int main_loop(void) #ifdef CONFIG_PROFILER qemu_time += profile_getclock() - ti; #endif + if (ret == EXCP_HLT) { + /* Give the next CPU a chance to run. */ + cur_cpu = env; + continue; + } if (ret != EXCP_HALTED) break; /* all CPUs are halted ? */ - if (env == cur_cpu) { - ret = EXCP_HLT; + if (env == cur_cpu) break; - } } cur_cpu = env; @@ -6325,9 +6328,9 @@ int main_loop(void) if (ret == EXCP_DEBUG) { vm_stop(EXCP_DEBUG); } - /* if hlt instruction, we wait until the next IRQ */ + /* If all cpus are halted then wait until the next IRQ */ /* XXX: use timeout computed from timers */ - if (ret == EXCP_HLT) + if (ret == EXCP_HALTED) timeout = 10; else timeout = 0; -- cgit v1.2.3