search for: vcpu_vlapic

From: Yang Zhang <yang.z.zhang@Intel.com> The follwoing patches are adding the Posted Interrupt supporting to Xen: Posted Interrupt allows vAPIC interrupts to inject into guest directly without any vmexit. - When delivering a interrupt to guest, if target vcpu is running, update Posted-interrupt requests bitmap and send a notification event to the vcpu. Then the vcpu will handle this

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> -- ---to satisfy European Law for business letters: Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach b. Muenchen Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen Registergericht Muenchen, HRB Nr. 43632 _______________________________________________ Xen-devel mailing list

...global_vcpu_target(v); } +int vlapic_virtual_intr_delivery_enabled(void) +{ + if ( hvm_funcs.virtual_intr_delivery_enabled ) + return hvm_funcs.virtual_intr_delivery_enabled(); + else + return 0; +} + int vlapic_has_pending_irq(struct vcpu *v) { struct vlapic *vlapic = vcpu_vlapic(v); @@ -1012,6 +1031,9 @@ int vlapic_has_pending_irq(struct vcpu * if ( irr == -1 ) return -1; + if ( vlapic_virtual_intr_delivery_enabled() ) + return irr; + isr = vlapic_find_highest_isr(vlapic); isr = (isr != -1) ? isr : 0; if ( (isr & 0xf0) >= (ir...

...); - if ( input == 0x00000001 ) + switch ( input ) { - struct vcpu *v = current; - - clear_bit(X86_FEATURE_MWAIT & 31, ecx); + case 0x00000001: + __clear_bit(X86_FEATURE_MWAIT & 31, ecx); if ( vlapic_hw_disabled(vcpu_vlapic(v)) ) - clear_bit(X86_FEATURE_APIC & 31, edx); + __clear_bit(X86_FEATURE_APIC & 31, edx); #if CONFIG_PAGING_LEVELS >= 3 if ( !v->domain->arch.hvm_domain.params[HVM_PARAM_PAE_ENABLED] ) #endif - clear_bit(X86_FEATURE_PAE...

Hi guys, I am having problem with installing Windows 7 RC on Xen. My config file is: WIndows is starting, which i can see in VNC terminal, and it hangs on "Starting windows" screen... I get error in logs which says: ... Done register platform. I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0 And I/O request error repeats as many times as many cores virtual cpus I

From: Yang Zhang <yang.z.zhang@Intel.com> The following patches fix the issue that fail to boot L2 guest on APIC-v available machine. The main problem is that with APIC-v, virtual interrupt inject L1 is totally through APIC-v. But if virtual interrupt is arrived when L2 is running, L1 will detect interrupt through vmexit with reason external interrupt. If this happens, we should update

...vm/vmx/vmx.c index 43ed36c..53e048e 100644 --- a/xen/arch/x86/hvm/vmx/vmx.c +++ b/xen/arch/x86/hvm/vmx/vmx.c @@ -1886,18 +1886,58 @@ static void vmx_install_vlapic_mapping(struct vcpu *v) void vmx_vlapic_msr_changed(struct vcpu *v) { + int virtualize_x2apic_mode; struct vlapic *vlapic = vcpu_vlapic(v); - if ( !cpu_has_vmx_virtualize_apic_accesses ) + virtualize_x2apic_mode = ( (cpu_has_vmx_apic_reg_virt || + cpu_has_vmx_virtual_intr_delivery) && + cpu_has_vmx_virtualize_x2apic_mode ); + + if ( !cpu_has_vmx_virtual...

Dear all: I have found a big bug on xen concerning time virtualization. Please let me show you the whole process: 1 Phenomenon when I run a JVM based program in IE browser in my Virtual Machine, I have found clearly that time at the right bottom corner in my VM gets more slower and slower. I studied the bug deeply, and found something below. 2 Xen vmx_vmexit_handler --> ......... -->

This patch series is a reworking of a series developed by Mukesh Rathor at Oracle. The entirety of the design and development was done by him; I have only reworked, reorganized, and simplified things in a way that I think makes more sense. The vast majority of the credit for this effort therefore goes to him. This version is labelled v13 because it is based on his most recent series, v11.