search for: start_vmx

...anybody help me on this? The following is the context 1. After booting up to the program, I disable A20M. 2. allocate a 4kb-aligned vmxon region and calculate its physical address. 3. setup identity page table and enter protected page mode. In this step I also set x86_cr0_ne ( cr0.bit5) 4. call start_vmx. This start_vmx function is similar to the one in xen3.1.0 a. test cpuid with eax = 1. ecx.vmxe(bit5) is 1. b. Test IA32_FEATURE_CONTROL_MSR, result is 0x05, so bit 0 and bit 2 are both 1. c. Set cr4.vmxe (bit13) to 1 d. Call vmx_init_vmcs_config(). This function is the same as in xen3.1.0. e...

...gt; --- a/xen/arch/x86/hvm/hvm.c +++ b/xen/arch/x86/hvm/hvm.c @@ -113,7 +113,7 @@ static struct notifier_block cpu_nfb = { static int __init hvm_enable(void) { - struct hvm_function_table *fns = NULL; + const struct hvm_function_table *fns = NULL; if ( cpu_has_vmx ) fns = start_vmx(); @@ -126,8 +126,8 @@ static int __init hvm_enable(void) hvm_funcs = *fns; hvm_enabled = 1; - printk("HVM: %s enabled\n", hvm_funcs.name); - if ( !hvm_funcs.hap_supported ) + printk("HVM: %s enabled\n", fns->name); + if ( !fns->hap_supported )...

...: machine: IBM x3400 (MT7976) with 2 Xeon E5310 and 4GB of RAM xen version: 4.01 Enterprise problem: Installation CD doesn''t boot, it locks on this error: --------------------------------------------------------------------------- Xen call trace shows codes about: vmx_ini_vmcs_config start_vmx identify_cpu smp_store_cpu_info smp_callin start_secondary ********************* Panic on CPU n: Xen BUG at vncs.c:124 ********************* Reboot in five seconds... --------------------------------------------------------------------------- screenshot of error at: http://valtellinux.it/xen/xe...

...,10 @@ static void vmx_ctxt_switch_to(struct vc static void stop_vmx(void) { - if (read_cr4() & X86_CR4_VMXE) + if (read_cr4() & X86_CR4_VMXE) { __vmxoff(); + clear_in_cr4(X86_CR4_VMXE); + } } void vmx_migrate_timers(struct vcpu *v) @@ -806,12 +808,14 @@ int start_vmx(void) if ( (vmcs = vmx_alloc_host_vmcs()) == NULL ) { + clear_in_cr4(X86_CR4_VMXE); printk("Failed to allocate host VMCS\n"); return 0; } if ( __vmxon(virt_to_maddr(vmcs)) ) { + clear_in_cr4(X86_CR4_VMXE); printk("...

...rcepts_trap = nvmx_intercepts_exception, .nhvm_vcpu_vmexit_trap = nvmx_vmexit_trap, - .nhvm_intr_blocked = nvmx_intr_blocked + .nhvm_intr_blocked = nvmx_intr_blocked, + .nhvm_domain_relinquish_resources = nvmx_domain_relinquish_resources }; struct hvm_function_table * __init start_vmx(void) diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c index 2e0b79d..1f610eb 100644 --- a/xen/arch/x86/hvm/vmx/vvmx.c +++ b/xen/arch/x86/hvm/vmx/vvmx.c @@ -57,6 +57,9 @@ void nvmx_vcpu_destroy(struct vcpu *v) { struct nestedvcpu *nvcpu = &vcpu_nestedhvm(v); + i...

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

...nquish_resources = nvmx_domain_relinquish_resources + .nhvm_domain_relinquish_resources = nvmx_domain_relinquish_resources, + .update_eoi_exit_bitmap = vmx_update_eoi_exit_bitmap, + .virtual_intr_delivery_enabled = vmx_virtual_intr_delivery_enabled }; struct hvm_function_table * __init start_vmx(void) @@ -2284,6 +2302,17 @@ static int vmx_handle_apic_write(void) return vlapic_apicv_write(current, offset); } +/* + * When "Virtual Interrupt Delivery" is enabled, this function is used + * to handle EOI-induced VM exit + */ +void vmx_handle_EOI_induced_exit(struct vlapic *vla...

I tried latest xen and linux-xen staging tree, but failed to run HVM domain on x86-64 environment. domU creation is OK. However the weird thing is not HVM domain itself. Instead system crashed on dom0 context. I saw once with some stack dump that xen''s page fault handler is executed on a dom0''s stack which then causes nested page fault due to unable to fetch vcpu pointer.

From: Zhang Xiantao <xiantao.zhang@intel.com> With virtual EPT support, L1 hyerpvisor can use EPT hardware for L2 guest''s memory virtualization. In this way, L2 guest''s performance can be improved sharply. According to our testing, some benchmarks can show > 5x performance gain. Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com> Zhang Xiantao (11):

The following series flushes my documentation queue and replaces previous postings of those patches. The main difference is that the xl cfg file is now formatted using POD instead of markdown and presented as a manpage. I have setup a cron job to build docs/html and publish it at http://xenbits.xen.org/docs/unstable/ (it''s a bit bare right now). The motivation for some of these patches