X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_halt.c;h=bfe2e5ac43c201e83bd50a294d995cc28319c98f;hb=94429f4b9268cf4d5f86dee5c3d929110811ac80;hp=5015046ed5b2fa7ea6ab1e9f50f9489082f101b1;hpb=c4e343e346404fcc7674dcfa32e588a282be0f86;p=palacios.git diff --git a/palacios/src/palacios/vmm_halt.c b/palacios/src/palacios/vmm_halt.c index 5015046..bfe2e5a 100644 --- a/palacios/src/palacios/vmm_halt.c +++ b/palacios/src/palacios/vmm_halt.c @@ -20,9 +20,9 @@ #include #include +#include - -#ifndef CONFIG_DEBUG_HALT +#ifndef V3_CONFIG_DEBUG_HALT #undef PrintDebug #define PrintDebug(fmt, args...) #endif @@ -38,27 +38,30 @@ int v3_handle_halt(struct guest_info * info) { if (info->cpl != 0) { v3_raise_exception(info, GPF_EXCEPTION); } else { - uint64_t yield_start = 0; - PrintDebug("CPU Yield\n"); while (!v3_intr_pending(info)) { - rdtscll(yield_start); + /* Since we're in an exit, time is already paused here, so no need to pause again. */ + // V3_Print("palacios: halt->yield\n"); + v3_yield(info); - v3_update_time(info, yield_start - info->time_state.cached_host_tsc); - - rdtscll(info->time_state.cached_host_tsc); - + v3_disable_ints(); + v3_update_timers(info); + v3_enable_ints(); + /* At this point, we either have some combination of interrupts, including perhaps a timer interrupt, or no interrupt. */ if (!v3_intr_pending(info)) { /* if no interrupt, then we do halt */ - asm("hlt"); + /* asm("hlt"); */ } + } + + /* V3_Print("palacios: done with halt\n"); */ info->rip += 1; }