X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm.c;h=e860391c9579e93f315d7a13689f0a626db31d6f;hp=c07476fd29c8053262801a561e7b960c01b082d2;hb=de3fce7c94e36342005ae5f79fcf22937acde586;hpb=785b7105d35b97c6e7a176facc29a2efdb234951 diff --git a/palacios/src/palacios/vmm.c b/palacios/src/palacios/vmm.c index c07476f..e860391 100644 --- a/palacios/src/palacios/vmm.c +++ b/palacios/src/palacios/vmm.c @@ -24,6 +24,8 @@ #include #include #include +#include +#include /* These should be the only global variables in Palacios */ @@ -67,3 +69,35 @@ void Init_V3(struct v3_os_hooks * hooks, struct v3_ctrl_ops * vmm_ops) { PrintDebug("CPU has no virtualization Extensions\n"); } } + + + +#ifdef __V3_32BIT__ + +v3_cpu_mode_t v3_get_host_cpu_mode() { + uint32_t cr4_val; + struct cr4_32 * cr4; + + __asm__ ( + "movl %%cr4, %0; " + : "=r"(cr4_val) + ); + + + cr4 = (struct cr4_32 *)&(cr4_val); + + if (cr4->pae == 1) { + return PROTECTED_PAE; + } else { + return PROTECTED; + } +} + +#elif __V3_64BIT__ + +v3_cpu_mode_t v3_get_host_cpu_mode() { + return LONG; +} + +#endif +