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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Fix VMX guest can not be created on PAE xen with more than 4G RAM.
# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 1ecb7f1ddc7900f34a7d7d962e5be3df3d850d61
# Parent 56a775219c88491d46395e8c34d72241c9a27253
Fix VMX guest can not be created on PAE xen with more than 4G RAM.
Also change v_end type from unsigned long to unsigned long long, for we
will have PAE VMX guest with more than 4G memory on PAE xen.
Signed-off-by: Xin Li <xin.b.li@xxxxxxxxx>
diff -r 56a775219c88 -r 1ecb7f1ddc79 tools/libxc/xc_hvm_build.c
--- a/tools/libxc/xc_hvm_build.c Sun Mar 19 17:52:20 2006
+++ b/tools/libxc/xc_hvm_build.c Sun Mar 19 17:55:46 2006
@@ -51,7 +51,7 @@
char *elfbase, int xch, uint32_t dom, unsigned long *parray,
struct domain_setup_info *dsi);
-static unsigned char build_e820map(void *e820_page, unsigned long mem_size)
+static unsigned char build_e820map(void *e820_page, unsigned long long
mem_size)
{
struct e820entry *e820entry =
(struct e820entry *)(((unsigned char *)e820_page) + E820_MAP_OFFSET);
@@ -81,11 +81,17 @@
#define STATIC_PAGES 2 /* for ioreq_t and store_mfn */
/* Most of the ram goes here */
e820entry[nr_map].addr = 0x100000;
- e820entry[nr_map].size = mem_size - 0x100000 - STATIC_PAGES*PAGE_SIZE;
+ e820entry[nr_map].size = mem_size - 0x100000 - STATIC_PAGES * PAGE_SIZE;
e820entry[nr_map].type = E820_RAM;
nr_map++;
/* Statically allocated special pages */
+
+ /* For xenstore */
+ e820entry[nr_map].addr = mem_size - 2 * PAGE_SIZE;
+ e820entry[nr_map].size = PAGE_SIZE;
+ e820entry[nr_map].type = E820_XENSTORE;
+ nr_map++;
/* Shared ioreq_t page */
e820entry[nr_map].addr = mem_size - PAGE_SIZE;
@@ -93,12 +99,6 @@
e820entry[nr_map].type = E820_SHARED_PAGE;
nr_map++;
- /* For xenstore */
- e820entry[nr_map].addr = mem_size - 2*PAGE_SIZE;
- e820entry[nr_map].size = PAGE_SIZE;
- e820entry[nr_map].type = E820_XENSTORE;
- nr_map++;
-
e820entry[nr_map].addr = mem_size;
e820entry[nr_map].size = 0x3 * PAGE_SIZE;
e820entry[nr_map].type = E820_NVS;
@@ -117,8 +117,7 @@
return (*(((unsigned char *)e820_page) + E820_MAP_NR_OFFSET) = nr_map);
}
-static void
-set_hvm_info_checksum(struct hvm_info_table *t)
+static void set_hvm_info_checksum(struct hvm_info_table *t)
{
uint8_t *ptr = (uint8_t *)t, sum = 0;
unsigned int i;
@@ -142,19 +141,16 @@
char *va_map;
struct hvm_info_table *va_hvm;
-
- va_map = xc_map_foreign_range(
- xc_handle,
- dom,
- PAGE_SIZE,
- PROT_READ|PROT_WRITE,
- pfn_list[HVM_INFO_PFN]);
+ va_map = xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
+ PROT_READ | PROT_WRITE,
+ pfn_list[HVM_INFO_PFN]);
if ( va_map == NULL )
return -1;
va_hvm = (struct hvm_info_table *)(va_map + HVM_INFO_OFFSET);
memset(va_hvm, 0, sizeof(*va_hvm));
+
strncpy(va_hvm->signature, "HVM INFO", 8);
va_hvm->length = sizeof(struct hvm_info_table);
va_hvm->acpi_enabled = acpi;
@@ -183,58 +179,59 @@
unsigned long *store_mfn)
{
unsigned long *page_array = NULL;
-
unsigned long count, i;
+ unsigned long long ptr;
+ xc_mmu_t *mmu = NULL;
+
shared_info_t *shared_info;
void *e820_page;
unsigned char e820_map_nr;
- xc_mmu_t *mmu = NULL;
- int rc;
struct domain_setup_info dsi;
- unsigned long v_end;
+ unsigned long long v_end;
unsigned long shared_page_frame = 0;
shared_iopage_t *sp;
memset(&dsi, 0, sizeof(struct domain_setup_info));
- if ( (rc = parseelfimage(image, image_size, &dsi)) != 0 )
- goto error_out;
-
- if ( (dsi.v_start & (PAGE_SIZE-1)) != 0 )
+ if ( (parseelfimage(image, image_size, &dsi)) != 0 )
+ goto error_out;
+
+ if ( (dsi.v_kernstart & (PAGE_SIZE - 1)) != 0 )
{
PERROR("Guest OS must load to a page boundary.\n");
goto error_out;
}
/* memsize is in megabytes */
- v_end = (unsigned long)memsize << 20;
+ v_end = (unsigned long long)memsize << 20;
printf("VIRTUAL MEMORY ARRANGEMENT:\n"
- " Loaded HVM loader: %08lx->%08lx\n"
- " TOTAL: %08lx->%08lx\n",
+ " Loaded HVM loader: %08lx->%08lx\n"
+ " TOTAL: %08lx->%016llx\n",
dsi.v_kernstart, dsi.v_kernend,
dsi.v_start, v_end);
- printf(" ENTRY ADDRESS: %08lx\n", dsi.v_kernentry);
-
- if ( (v_end - dsi.v_start) > (nr_pages * PAGE_SIZE) )
- {
- ERROR("Initial guest OS requires too much space\n"
- "(%luMB is greater than %luMB limit)\n",
- (v_end-dsi.v_start)>>20, (nr_pages<<PAGE_SHIFT)>>20);
+ printf(" ENTRY ADDRESS: %08lx\n", dsi.v_kernentry);
+
+ if ( (v_end - dsi.v_start) > ((unsigned long long)nr_pages << PAGE_SHIFT) )
+ {
+ PERROR("Initial guest OS requires too much space: "
+ "(%lluMB is greater than %lluMB limit)\n",
+ (unsigned long long)(v_end - dsi.v_start) >> 20,
+ ((unsigned long long)nr_pages << PAGE_SHIFT) >> 20);
goto error_out;
}
if ( (page_array = malloc(nr_pages * sizeof(unsigned long))) == NULL )
{
- PERROR("Could not allocate memory");
+ PERROR("Could not allocate memory.\n");
goto error_out;
}
if ( xc_get_pfn_list(xc_handle, dom, page_array, nr_pages) != nr_pages )
{
- PERROR("Could not get the page frame list");
+ PERROR("Could not get the page frame list.\n");
goto error_out;
}
@@ -246,20 +243,21 @@
/* Write the machine->phys table entries. */
for ( count = 0; count < nr_pages; count++ )
{
+ ptr = (unsigned long long)page_array[count] << PAGE_SHIFT;
if ( xc_add_mmu_update(xc_handle, mmu,
- (page_array[count] << PAGE_SHIFT) |
- MMU_MACHPHYS_UPDATE, count) )
+ ptr | MMU_MACHPHYS_UPDATE, count) )
goto error_out;
}
- if ( set_hvm_info(xc_handle, dom, page_array, vcpus, pae, acpi, apic) ) {
- fprintf(stderr, "Couldn't set hvm info for HVM guest.\n");
+ if ( set_hvm_info(xc_handle, dom, page_array, vcpus, pae, acpi, apic) )
+ {
+ ERROR("Couldn't set hvm info for HVM guest.\n");
goto error_out;
}
if ( (e820_page = xc_map_foreign_range(
- xc_handle, dom, PAGE_SIZE, PROT_READ|PROT_WRITE,
- page_array[E820_MAP_PAGE >> PAGE_SHIFT])) == 0 )
+ xc_handle, dom, PAGE_SIZE, PROT_READ | PROT_WRITE,
+ page_array[E820_MAP_PAGE >> PAGE_SHIFT])) == 0 )
goto error_out;
memset(e820_page, 0, PAGE_SIZE);
e820_map_nr = build_e820map(e820_page, v_end);
@@ -267,8 +265,8 @@
/* shared_info page starts its life empty. */
if ( (shared_info = xc_map_foreign_range(
- xc_handle, dom, PAGE_SIZE, PROT_READ|PROT_WRITE,
- shared_info_frame)) == 0 )
+ xc_handle, dom, PAGE_SIZE, PROT_READ | PROT_WRITE,
+ shared_info_frame)) == 0 )
goto error_out;
memset(shared_info, 0, sizeof(shared_info_t));
/* Mask all upcalls... */
@@ -279,8 +277,8 @@
/* Populate the event channel port in the shared page */
shared_page_frame = page_array[(v_end >> PAGE_SHIFT) - 1];
if ( (sp = (shared_iopage_t *) xc_map_foreign_range(
- xc_handle, dom, PAGE_SIZE, PROT_READ|PROT_WRITE,
- shared_page_frame)) == 0 )
+ xc_handle, dom, PAGE_SIZE, PROT_READ | PROT_WRITE,
+ shared_page_frame)) == 0 )
goto error_out;
memset(sp, 0, PAGE_SIZE);
@@ -290,7 +288,7 @@
vp_eport = xc_evtchn_alloc_unbound(xc_handle, dom, 0);
if ( vp_eport < 0 ) {
- fprintf(stderr, "Couldn't get unbound port from VMX guest.\n");
+ PERROR("Couldn't get unbound port from VMX guest.\n");
goto error_out;
}
sp->vcpu_iodata[i].vp_eport = vp_eport;
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