[Xen-devel] [PATCH v2 03/11] xen/hvmlite: Initialize HVMlite kernel

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

HVMlite guests need to make a few additional initialization calls
compared to regular HVM guests.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
---
 arch/x86/xen/enlighten.c |   18 ++++++++++++------
 1 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 5f05fa2..1409de6 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1863,15 +1863,21 @@ static void __init init_hvm_pv_info(void)
        minor = eax & 0xffff;
        printk(KERN_INFO "Xen version %d.%d.\n", major, minor);
 
-       cpuid(base + 2, &pages, &msr, &ecx, &edx);
-
-       pfn = __pa(hypercall_page);
-       wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
+       /* HVMlite set up hypercall page earlier in xen_prepare_hvmlite() */
+       if (xen_hvmlite) {
+               pv_info.name = "Xen HVMlite";
+               pv_info.paravirt_enabled = 1;
+               xen_init_apic();
+               machine_ops = xen_machine_ops;
+       } else {
+               pv_info.name = "Xen HVM";
+               cpuid(base + 2, &pages, &msr, &ecx, &edx);
+               pfn = __pa(hypercall_page);
+               wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
+       }
 
        xen_setup_features();
 
-       pv_info.name = "Xen HVM";
-
        xen_domain_type = XEN_HVM_DOMAIN;
 }
 
-- 
1.7.1


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