diff options
| author | Yang Zhang <yang.z.zhang@Intel.com> | 2013-04-18 11:32:02 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2013-04-18 11:32:02 +0200 |
| commit | b266924990af96ee47ee299e1b6bb87fac2e2548 (patch) | |
| tree | 0e8785506562645852815c055a7a9fe53ee4bccb /xen/arch/x86/hvm/vmx | |
| parent | 26c35e5cb93a7b4dcde940620eb7ac1845ed6e5a (diff) | |
| download | xen-b266924990af96ee47ee299e1b6bb87fac2e2548.tar.gz xen-b266924990af96ee47ee299e1b6bb87fac2e2548.tar.bz2 xen-b266924990af96ee47ee299e1b6bb87fac2e2548.zip | |
VMX: Detect posted interrupt capability
Check whether the Hardware supports posted interrupt capability.
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Reviewed-by: Jun Nakajima <jun.nakajima@intel.com>
Acked-by: Keir Fraser <keir@xen.org>
Acked-by: George Dunlap <george.dunlap@eu.citrix.com> (from a release perspective)
Diffstat (limited to 'xen/arch/x86/hvm/vmx')
| -rw-r--r-- | xen/arch/x86/hvm/vmx/vmcs.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/xen/arch/x86/hvm/vmx/vmcs.c b/xen/arch/x86/hvm/vmx/vmcs.c index 9926ffbb41..d634d488e6 100644 --- a/xen/arch/x86/hvm/vmx/vmcs.c +++ b/xen/arch/x86/hvm/vmx/vmcs.c @@ -92,6 +92,7 @@ static void __init vmx_display_features(void) P(cpu_has_vmx_unrestricted_guest, "Unrestricted Guest"); P(cpu_has_vmx_apic_reg_virt, "APIC Register Virtualization"); P(cpu_has_vmx_virtual_intr_delivery, "Virtual Interrupt Delivery"); + P(cpu_has_vmx_posted_intr_processing, "Posted Interrupt Processing"); P(cpu_has_vmx_vmcs_shadowing, "VMCS shadowing"); #undef P @@ -143,7 +144,8 @@ static int vmx_init_vmcs_config(void) min = (PIN_BASED_EXT_INTR_MASK | PIN_BASED_NMI_EXITING); - opt = PIN_BASED_VIRTUAL_NMIS; + opt = (PIN_BASED_VIRTUAL_NMIS | + PIN_BASED_POSTED_INTERRUPT); _vmx_pin_based_exec_control = adjust_vmx_controls( "Pin-Based Exec Control", min, opt, MSR_IA32_VMX_PINBASED_CTLS, &mismatch); @@ -269,6 +271,14 @@ static int vmx_init_vmcs_config(void) _vmx_vmexit_control = adjust_vmx_controls( "VMExit Control", min, opt, MSR_IA32_VMX_EXIT_CTLS, &mismatch); + /* + * "Process posted interrupt" can be set only when "virtual-interrupt + * delivery" and "acknowledge interrupt on exit" is set + */ + if ( !(_vmx_secondary_exec_control & SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY) + || !(_vmx_vmexit_control & VM_EXIT_ACK_INTR_ON_EXIT) ) + _vmx_pin_based_exec_control &= ~ PIN_BASED_POSTED_INTERRUPT; + min = 0; opt = VM_ENTRY_LOAD_GUEST_PAT; _vmx_vmentry_control = adjust_vmx_controls( |