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| author | Keir Fraser <keir.fraser@citrix.com> | 2009-01-05 11:52:34 +0000 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2009-01-05 11:52:34 +0000 |
| commit | 0f326f46eb5411d9f731cd3971b49c57411c8c50 (patch) | |
| tree | f058e5d92b85652755cddf7f0044f13e3a2457d9 | |
| parent | cbd07b72a3674387f19e4c7fc44c73c08dc8a58d (diff) | |
| download | xen-0f326f46eb5411d9f731cd3971b49c57411c8c50.tar.gz xen-0f326f46eb5411d9f731cd3971b49c57411c8c50.tar.bz2 xen-0f326f46eb5411d9f731cd3971b49c57411c8c50.zip | |
vmx: Print advanced features during boot
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
| -rw-r--r-- | xen/arch/x86/hvm/vmx/vmcs.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/xen/arch/x86/hvm/vmx/vmcs.c b/xen/arch/x86/hvm/vmx/vmcs.c index 83598c1818..4fd560dece 100644 --- a/xen/arch/x86/hvm/vmx/vmcs.c +++ b/xen/arch/x86/hvm/vmx/vmcs.c @@ -55,6 +55,25 @@ static DEFINE_PER_CPU(struct list_head, active_vmcs_list); static u32 vmcs_revision_id __read_mostly; +static void __init vmx_display_features(void) +{ + int printed = 0; + + printk("VMX: Supported advanced features:\n"); + +#define P(p,s) if ( p ) { printk(" - %s\n", s); printed = 1; } + P(cpu_has_vmx_virtualize_apic_accesses, "APIC MMIO access virtualisation"); + P(cpu_has_vmx_tpr_shadow, "APIC TPR shadow"); + P(cpu_has_vmx_ept, "Extended Page Tables (EPT)"); + P(cpu_has_vmx_vpid, "Virtual-Processor Identifiers (VPID)"); + P(cpu_has_vmx_vnmi, "Virtual NMI"); + P(cpu_has_vmx_msr_bitmap, "MSR direct-access bitmap"); +#undef P + + if ( !printed ) + printk(" - none\n"); +} + static u32 adjust_vmx_controls(u32 ctl_min, u32 ctl_opt, u32 msr) { u32 vmx_msr_low, vmx_msr_high, ctl = ctl_min | ctl_opt; @@ -169,6 +188,7 @@ static void vmx_init_vmcs_config(void) vmx_vmexit_control = _vmx_vmexit_control; vmx_vmentry_control = _vmx_vmentry_control; cpu_has_vmx_ins_outs_instr_info = !!(vmx_basic_msr_high & (1U<<22)); + vmx_display_features(); } else { |