[Xen-ia64-devel] [PATCH 11/12] allocate vcpu from domheap

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

# HG changeset patch
# User yamahata@xxxxxxxxxxxxx
# Date 1197960252 -32400
# Node ID 144d7d5b73551d5451f278f8f02647c85ffb51c3
# Parent  e532cad65b1cf039ef3ce7859c0fd6c4ef6fd7f4
allocate struct vcpu from domheap.
Now there's no constraint to allocate struct vcpu from xenheap.
So allocate it from domain heap.
PATCHNAME: allocate_vcpu_from_domain_heap

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>

diff -r e532cad65b1c -r 144d7d5b7355 xen/arch/ia64/xen/domain.c
--- a/xen/arch/ia64/xen/domain.c        Thu Dec 20 14:53:49 2007 +0900
+++ b/xen/arch/ia64/xen/domain.c        Tue Dec 18 15:44:12 2007 +0900
@@ -407,6 +407,7 @@ void relinquish_vcpu_resources(struct vc
 
 struct vcpu *alloc_vcpu_struct(void)
 {
+       struct page_info *page;
        struct vcpu *v;
        struct thread_info *ti;
        static int first_allocation = 1;
@@ -419,8 +420,10 @@ struct vcpu *alloc_vcpu_struct(void)
                return idle_vcpu[0];
        }
 
-       if ((v = alloc_xenheap_pages(KERNEL_STACK_SIZE_ORDER)) == NULL)
+       page = alloc_domheap_pages(NULL, KERNEL_STACK_SIZE_ORDER, 0);
+       if (page == NULL)
                return NULL;
+       v = page_to_virt(page);
        memset(v, 0, sizeof(*v)); 
 
        ti = alloc_thread_info(v);
@@ -435,7 +438,7 @@ struct vcpu *alloc_vcpu_struct(void)
 
 void free_vcpu_struct(struct vcpu *v)
 {
-       free_xenheap_pages(v, KERNEL_STACK_SIZE_ORDER);
+       free_domheap_pages(virt_to_page(v), KERNEL_STACK_SIZE_ORDER);
 }
 
 int vcpu_initialise(struct vcpu *v)

Attachment: 16643_144d7d5b7355_allocate_vcpu_from_domain_heap.patch
Description: Text Data

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