# HG changeset patch
# User Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
# Date 1233281577 -32400
# Node ID c8962b24fb5091c95e32bdd9a25b1a67f33cedca
# Parent 971d2d5cb5cb32b958530f5e43cca221883af0b2
[IA64] remove static-partitioned xenheap
This patch is ia64 counter part of 19054:845aa241e163
Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
xen/arch/ia64/linux-xen/mm_contig.c | 2 -
xen/arch/ia64/vmx/vmx_init.c | 2 -
xen/arch/ia64/xen/machine_kexec.c | 7 +++---
xen/arch/ia64/xen/mm.c | 7 +++---
xen/arch/ia64/xen/xensetup.c | 37 ++++++++++--------------------------
xen/common/page_alloc.c | 2 -
xen/include/asm-ia64/config.h | 4 ---
xen/include/asm-ia64/mm.h | 10 +++++----
8 files changed, 28 insertions(+), 43 deletions(-)
diff -r 971d2d5cb5cb -r c8962b24fb50 xen/arch/ia64/linux-xen/mm_contig.c
--- a/xen/arch/ia64/linux-xen/mm_contig.c Fri Jan 30 11:12:44 2009 +0900
+++ b/xen/arch/ia64/linux-xen/mm_contig.c Fri Jan 30 11:12:57 2009 +0900
@@ -190,7 +190,7 @@ per_cpu_allocate(void *xen_heap_start, u
unsigned long end = start + size;
if (__pa(end) < end_in_pa) {
- init_xenheap_pages(__pa(xen_heap_start), __pa(start));
+ init_boot_pages(__pa(xen_heap_start), __pa(start));
xen_heap_start = (void*)end;
percpu_area = (void*)virt_to_xenva(start);
printk("allocate percpu area 0x%lx@0x%lx 0x%p\n",
diff -r 971d2d5cb5cb -r c8962b24fb50 xen/arch/ia64/vmx/vmx_init.c
--- a/xen/arch/ia64/vmx/vmx_init.c Fri Jan 30 11:12:44 2009 +0900
+++ b/xen/arch/ia64/vmx/vmx_init.c Fri Jan 30 11:12:57 2009 +0900
@@ -146,7 +146,7 @@ vmx_init_env(void *start, unsigned long
VM_BUFFER_ALIGN_UP((unsigned long)start);
unsigned long e_vm_buffer = s_vm_buffer + buffer_size;
if (__pa(e_vm_buffer) < end_in_pa) {
- init_xenheap_pages(__pa(start), __pa(s_vm_buffer));
+ init_boot_pages(__pa(start), __pa(s_vm_buffer));
start = (void*)e_vm_buffer;
vm_buffer = virt_to_xenva(s_vm_buffer);
printk("vm_buffer: 0x%lx\n", vm_buffer);
diff -r 971d2d5cb5cb -r c8962b24fb50 xen/arch/ia64/xen/machine_kexec.c
--- a/xen/arch/ia64/xen/machine_kexec.c Fri Jan 30 11:12:44 2009 +0900
+++ b/xen/arch/ia64/xen/machine_kexec.c Fri Jan 30 11:12:57 2009 +0900
@@ -159,8 +159,10 @@ static int machine_kexec_get_xenheap(xen
static int machine_kexec_get_xenheap(xen_kexec_range_t *range)
{
range->start = (ia64_tpa(_end) + (ELF_PAGE_SIZE - 1)) & ELF_PAGE_MASK;
- range->size = (unsigned long)xenheap_phys_end -
- (unsigned long)range->start;
+ range->size =
+ (((unsigned long)range->start + KERNEL_TR_PAGE_SIZE) &
+ ~(KERNEL_TR_PAGE_SIZE - 1))
+ - (unsigned long)range->start;
return 0;
}
@@ -195,7 +197,6 @@ int machine_kexec_get(xen_kexec_range_t
void arch_crash_save_vmcoreinfo(void)
{
- VMCOREINFO_SYMBOL(xenheap_phys_end);
VMCOREINFO_SYMBOL(dom_xen);
VMCOREINFO_SYMBOL(dom_io);
VMCOREINFO_SYMBOL(xen_pstart);
diff -r 971d2d5cb5cb -r c8962b24fb50 xen/arch/ia64/xen/mm.c
--- a/xen/arch/ia64/xen/mm.c Fri Jan 30 11:12:44 2009 +0900
+++ b/xen/arch/ia64/xen/mm.c Fri Jan 30 11:12:57 2009 +0900
@@ -466,7 +466,7 @@ share_xen_page_with_guest(struct page_in
page_set_owner(page, d);
wmb(); /* install valid domain ptr before updating refcnt. */
- ASSERT(page->count_info == 0);
+ ASSERT((page->count_info & ~PGC_xen_heap)== 0);
/* Only add to the allocation list if the domain isn't dying. */
if ( !d->is_dying )
@@ -987,7 +987,7 @@ assign_domain_page(struct domain *d,
struct page_info* page = mfn_to_page(physaddr >> PAGE_SHIFT);
BUG_ON((physaddr & _PAGE_PPN_MASK) != physaddr);
- BUG_ON(page->count_info != (PGC_allocated | 1));
+ BUG_ON((page->count_info & ~PGC_xen_heap) != (PGC_allocated | 1));
set_gpfn_from_mfn(physaddr >> PAGE_SHIFT, mpaddr >> PAGE_SHIFT);
// because __assign_domain_page() uses set_pte_rel() which has
// release semantics, smp_mb() isn't needed.
@@ -2894,7 +2894,8 @@ guest_physmap_add_page(struct domain *d,
for (i = 0; i < (1UL << page_order); i++) {
BUG_ON(!mfn_valid(mfn));
- BUG_ON(mfn_to_page(mfn)->count_info != (PGC_allocated | 1));
+ BUG_ON((mfn_to_page(mfn)->count_info & ~PGC_xen_heap) !=
+ (PGC_allocated | 1));
__guest_physmap_add_page(d, gpfn, mfn);
mfn++;
gpfn++;
diff -r 971d2d5cb5cb -r c8962b24fb50 xen/arch/ia64/xen/xensetup.c
--- a/xen/arch/ia64/xen/xensetup.c Fri Jan 30 11:12:44 2009 +0900
+++ b/xen/arch/ia64/xen/xensetup.c Fri Jan 30 11:12:57 2009 +0900
@@ -33,7 +33,7 @@
#include <asm/sn/simulator.h>
#include <asm/sal.h>
-unsigned long xenheap_phys_end, total_pages;
+unsigned long total_pages;
char saved_command_line[COMMAND_LINE_SIZE];
char __initdata dom0_command_line[COMMAND_LINE_SIZE];
@@ -72,24 +72,10 @@ static int __initdata opt_xencons_poll;
static int __initdata opt_xencons_poll;
boolean_param("xencons_poll", opt_xencons_poll);
+#define XENHEAP_DEFAULT_SIZE KERNEL_TR_PAGE_SIZE
+#define XENHEAP_SIZE_MIN (16 * 1024 * 1024) /* 16MBytes */
unsigned long xenheap_size = XENHEAP_DEFAULT_SIZE;
unsigned long xen_pstart;
-
-static void __init parse_xenheap_megabytes(char *s)
-{
- unsigned long megabytes = simple_strtoll(s, NULL, 0);
-
-#define XENHEAP_MEGABYTES_MIN 16UL
- if (megabytes < XENHEAP_MEGABYTES_MIN)
- megabytes = XENHEAP_MEGABYTES_MIN;
-
-#define XENHEAP_MEGABYTES_MAX 4096UL /* need more? */
- if (megabytes > XENHEAP_MEGABYTES_MAX)
- megabytes = XENHEAP_MEGABYTES_MAX;
-
- xenheap_size = megabytes * 1024 * 1024;
-}
-custom_param("xenheap_megabytes", parse_xenheap_megabytes);
static int __init
xen_count_pages(u64 start, u64 end, void *arg)
@@ -315,7 +301,7 @@ init_xenheap_mds(unsigned long start, un
unsigned long s = max(start, max(__pa(desc->xen_heap_start),
md->phys_addr));
unsigned long e = min(end, min(md_end, desc->xenheap_phys_end));
- init_xenheap_pages(s, e);
+ init_boot_pages(s, e);
}
}
@@ -362,6 +348,7 @@ void __init start_kernel(void)
struct domain *idle_domain;
struct vcpu *dom0_vcpu0;
efi_memory_desc_t *kern_md, *last_md, *md;
+ unsigned long xenheap_phys_end;
void *xen_heap_start;
struct xen_heap_desc heap_desc;
#ifdef CONFIG_SMP
@@ -422,10 +409,8 @@ void __init start_kernel(void)
* for the actual xenheap.
*/
max_page = efi_get_max_addr() >> PAGE_SHIFT;
- while ((max_page >> 3) > xenheap_size - (XENHEAP_MEGABYTES_MIN << 20))
+ while ((max_page >> 3) > xenheap_size - XENHEAP_SIZE_MIN)
xenheap_size <<= 1;
-
- BUG_ON(xenheap_size > (XENHEAP_MEGABYTES_MAX << 20));
xenheap_phys_end = xen_pstart + xenheap_size;
printk("xen image pstart: 0x%lx, xenheap pend: 0x%lx\n",
@@ -731,8 +716,8 @@ void arch_get_xen_caps(xen_capabilities_
int xen_in_range(paddr_t start, paddr_t end)
{
- start = max_t(paddr_t, start, xen_pstart);
- end = min_t(paddr_t, end, xen_pstart + XENHEAP_DEFAULT_SIZE);
-
- return start < end;
-}
+ paddr_t xs = __pa(&_start);
+ paddr_t xe = __pa(&_end);
+
+ return (start < xe) && (end > xs);
+}
diff -r 971d2d5cb5cb -r c8962b24fb50 xen/common/page_alloc.c
--- a/xen/common/page_alloc.c Fri Jan 30 11:12:44 2009 +0900
+++ b/xen/common/page_alloc.c Fri Jan 30 11:12:57 2009 +0900
@@ -631,7 +631,7 @@ void __init scrub_heap_pages(void)
* XEN-HEAP SUB-ALLOCATOR
*/
-#ifndef __x86_64__
+#if !defined(__x86_64__) && !defined(__ia64__)
void init_xenheap_pages(paddr_t ps, paddr_t pe)
{
diff -r 971d2d5cb5cb -r c8962b24fb50 xen/include/asm-ia64/config.h
--- a/xen/include/asm-ia64/config.h Fri Jan 30 11:12:44 2009 +0900
+++ b/xen/include/asm-ia64/config.h Fri Jan 30 11:12:57 2009 +0900
@@ -86,7 +86,6 @@ typedef unsigned long paddr_t;
// FIXME?: x86-ism used in xen/mm.h
#define LOCK_PREFIX
-extern unsigned long xenheap_phys_end;
extern unsigned long total_pages;
extern unsigned long xen_pstart;
extern unsigned long xenheap_size;
@@ -119,9 +118,6 @@ extern char _end[]; /* standard ELF symb
// FIXME SMP: leave SMP for a later time
///////////////////////////////////////////////////////////////
// xen/include/asm/config.h
-// Natural boundary upon TR size to define xenheap space
-#define XENHEAP_DEFAULT_MB (1 << (KERNEL_TR_PAGE_SHIFT - 20))
-#define XENHEAP_DEFAULT_SIZE (1 << KERNEL_TR_PAGE_SHIFT)
#define ELFSIZE 64
///////////////////////////////////////////////////////////////
diff -r 971d2d5cb5cb -r c8962b24fb50 xen/include/asm-ia64/mm.h
--- a/xen/include/asm-ia64/mm.h Fri Jan 30 11:12:44 2009 +0900
+++ b/xen/include/asm-ia64/mm.h Fri Jan 30 11:12:57 2009 +0900
@@ -114,16 +114,18 @@ struct page_info
/* Cleared when the owning guest 'frees' this page. */
#define _PGC_allocated PG_shift(1)
#define PGC_allocated PG_mask(1, 1)
- /* bit PG_shift(2) reserved. See asm-x86/mm.h */
+ /* Page is Xen heap? */
+# define _PGC_xen_heap PG_shift(2)
+# define PGC_xen_heap PG_mask(1, 2)
/* bit PG_shift(3) reserved. See asm-x86/mm.h */
/* PG_mask(7, 6) reserved. See asm-x86/mm.h*/
/* Count of references to this frame. */
#define PGC_count_width PG_shift(6)
#define PGC_count_mask ((1UL<<PGC_count_width)-1)
-#define is_xen_heap_mfn(mfn) (((mfn) < paddr_to_pfn(xenheap_phys_end)) \
- && ((mfn) >= paddr_to_pfn(xen_pstart)))
-#define is_xen_heap_page(page) is_xen_heap_mfn(page_to_mfn(page))
+#define is_xen_heap_page(page) ((page)->count_info & PGC_xen_heap)
+#define is_xen_heap_mfn(mfn) (mfn_valid(mfn) && \
+ is_xen_heap_page(mfn_to_page(mfn)))
#define page_get_owner(_p) ((struct domain *)(_p)->u.inuse._domain)
#define page_set_owner(_p, _d) ((_p)->u.inuse._domain = (unsigned long)(_d))
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