From ed6fe2f64b37d0c6161b23b20980f91e0be7a1ea Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Wed, 14 Dec 2016 16:12:43 -0600 Subject: cpu/intel/common: Add/Use common function to set virtualization Migrate duplicated enable_vmx() method from multiple CPUs to common folder. Add common virtualization option for CPUs which support it. Note that this changes the default to enable virtualization on CPUs that support it. Change-Id: Ib110bed6c9f5508e3f867dcdc6f341fc50e501d1 Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/17874 Reviewed-by: Nico Huber Tested-by: build bot (Jenkins) --- src/cpu/intel/model_1067x/model_1067x_init.c | 38 +++------------------------- 1 file changed, 3 insertions(+), 35 deletions(-) (limited to 'src/cpu/intel/model_1067x/model_1067x_init.c') diff --git a/src/cpu/intel/model_1067x/model_1067x_init.c b/src/cpu/intel/model_1067x/model_1067x_init.c index e28a331225..e0f74b25c1 100644 --- a/src/cpu/intel/model_1067x/model_1067x_init.c +++ b/src/cpu/intel/model_1067x/model_1067x_init.c @@ -27,7 +27,7 @@ #include #include #include - +#include #include "chip.h" static void init_timer(void) @@ -42,38 +42,6 @@ static void init_timer(void) lapic_write(LAPIC_TMICT, 0xffffffff); } -#define IA32_FEATURE_CONTROL 0x003a - -#define CPUID_VMX (1 << 5) -#define CPUID_SMX (1 << 6) -static void enable_vmx(void) -{ - struct cpuid_result regs; - msr_t msr; - - msr = rdmsr(IA32_FEATURE_CONTROL); - - if (msr.lo & (1 << 0)) { - /* VMX locked. If we set it again we get an illegal - * instruction - */ - return; - } - - regs = cpuid(1); - if (regs.ecx & CPUID_VMX) { - msr.lo |= (1 << 2); - if (regs.ecx & CPUID_SMX) - msr.lo |= (1 << 1); - } - - wrmsr(IA32_FEATURE_CONTROL, msr); - - msr.lo |= (1 << 0); /* Set lock bit */ - - wrmsr(IA32_FEATURE_CONTROL, msr); -} - #define MSR_BBL_CR_CTL3 0x11e static void configure_c_states(const int quad) @@ -328,8 +296,8 @@ static void model_1067x_init(struct device *cpu) /* Initialize the APIC timer */ init_timer(); - /* Enable virtualization */ - enable_vmx(); + /* Set virtualization based on Kconfig option */ + set_vmx(); /* Configure C States */ configure_c_states(quad); -- cgit v1.2.3