diff options
Diffstat (limited to 'src/fw/paravirt.c')
| -rw-r--r-- | src/fw/paravirt.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/fw/paravirt.c b/src/fw/paravirt.c index 3fae13a..e8e419e 100644 --- a/src/fw/paravirt.c +++ b/src/fw/paravirt.c @@ -130,6 +130,15 @@ qemu_preinit(void) dprintf(1, "RamSize: 0x%08x [cmos]\n", RamSize); } +#define MSR_IA32_FEATURE_CONTROL 0x0000003a + +static void msr_feature_control_setup(void) +{ + u64 feature_control_bits = romfile_loadint("etc/msr_feature_control", 0); + if (feature_control_bits) + wrmsr_smp(MSR_IA32_FEATURE_CONTROL, feature_control_bits); +} + void qemu_platform_setup(void) { @@ -148,8 +157,9 @@ qemu_platform_setup(void) smm_device_setup(); smm_setup(); - // Initialize mtrr and smp + // Initialize mtrr, msr_feature_control and smp mtrr_setup(); + msr_feature_control_setup(); smp_setup(); // Create bios tables |