# HG changeset patch
# User Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
# Node ID 1a3c1168db6a09f939e320291c8814ec074a6cc8
# Parent 5c3b6b623c573fc7189d9c711b8251a87cddaa9c
[TOOLS][POWERPC] Use a smaller page array and place common code in utils.c
Since all the bits must be loaded into the RMA there is no need to get
the entire page array, just those pages in the RMA.
We also place common functions in utils.c
Signed-off-by: Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx>
---
tools/libxc/powerpc64/Makefile | 4
tools/libxc/powerpc64/utils.c | 162 +++++++++++++++++++++++++
tools/libxc/powerpc64/utils.h | 38 +++++
tools/libxc/powerpc64/xc_linux_build.c | 211 ++-------------------------------
tools/libxc/powerpc64/xc_prose_build.c | 197 +++---------------------------
5 files changed, 242 insertions(+), 370 deletions(-)
diff -r 5c3b6b623c57 -r 1a3c1168db6a tools/libxc/powerpc64/Makefile
--- a/tools/libxc/powerpc64/Makefile Wed Oct 18 06:50:35 2006 -0400
+++ b/tools/libxc/powerpc64/Makefile Wed Oct 18 09:01:37 2006 -0400
@@ -1,4 +1,6 @@ GUEST_SRCS-y += powerpc64/xc_linux_build
+GUEST_SRCS-y += powerpc64/flatdevtree.c
GUEST_SRCS-y += powerpc64/xc_linux_build.c
-GUEST_SRCS-y += powerpc64/flatdevtree.c
GUEST_SRCS-y += powerpc64/xc_prose_build.c
+GUEST_SRCS-y += powerpc64/utils.c
+
CTRL_SRCS-y += powerpc64/xc_memory.c
diff -r 5c3b6b623c57 -r 1a3c1168db6a tools/libxc/powerpc64/xc_linux_build.c
--- a/tools/libxc/powerpc64/xc_linux_build.c Wed Oct 18 06:50:35 2006 -0400
+++ b/tools/libxc/powerpc64/xc_linux_build.c Wed Oct 18 09:01:37 2006 -0400
@@ -35,60 +35,10 @@
#include "flatdevtree_env.h"
#include "flatdevtree.h"
+#include "utils.h"
#define INITRD_ADDR (24UL << 20)
#define DEVTREE_ADDR (16UL << 20)
-
-#define ALIGN_UP(addr,size) (((addr)+((size)-1))&(~((size)-1)))
-
-#define max(x,y) ({ \
- const typeof(x) _x = (x); \
- const typeof(y) _y = (y); \
- (void) (&_x == &_y); \
- _x > _y ? _x : _y; })
-
-static void *load_file(const char *path, unsigned long *filesize)
-{
- void *img;
- ssize_t size;
- int fd;
-
- DPRINTF("load_file(%s)\n", path);
-
- fd = open(path, O_RDONLY);
- if (fd < 0) {
- perror(path);
- return NULL;
- }
-
- size = lseek(fd, 0, SEEK_END);
- if (size < 0) {
- perror(path);
- close(fd);
- return NULL;
- }
- lseek(fd, 0, SEEK_SET);
-
- img = malloc(size);
- if (img == NULL) {
- perror(path);
- close(fd);
- return NULL;
- }
-
- size = read(fd, img, size);
- if (size <= 0) {
- perror(path);
- close(fd);
- free(img);
- return NULL;
- }
-
- if (filesize)
- *filesize = size;
- close(fd);
- return img;
-}
static int init_boot_vcpu(
int xc_handle,
@@ -128,37 +78,6 @@ static int init_boot_vcpu(
return rc;
}
-static int install_image(
- int xc_handle,
- int domid,
- xen_pfn_t *page_array,
- void *image,
- unsigned long paddr,
- unsigned long size)
-{
- uint8_t *img = image;
- int i;
- int rc = 0;
-
- if (paddr & ~PAGE_MASK) {
- printf("*** unaligned address\n");
- return -1;
- }
-
- for (i = 0; i < size; i += PAGE_SIZE) {
- void *page = img + i;
- xen_pfn_t pfn = (paddr + i) >> PAGE_SHIFT;
- xen_pfn_t mfn = page_array[pfn];
-
- rc = xc_copy_to_domain_page(xc_handle, domid, mfn, page);
- if (rc < 0) {
- perror("xc_copy_to_domain_page");
- break;
- }
- }
- return rc;
-}
-
static int load_devtree(
int xc_handle,
int domid,
@@ -223,87 +142,6 @@ static int load_devtree(
devtree_size);
}
-unsigned long spin_list[] = {
-#if 0
- 0x100,
- 0x200,
- 0x300,
- 0x380,
- 0x400,
- 0x480,
- 0x500,
- 0x700,
- 0x900,
- 0xc00,
-#endif
- 0
-};
-
-/* XXX yes, this is a hack */
-static void hack_kernel_img(char *img)
-{
- const off_t file_offset = 0x10000;
- unsigned long *addr = spin_list;
-
- while (*addr) {
- uint32_t *instruction = (uint32_t *)(img + *addr + file_offset);
- printf("installing spin loop at %lx (%x)\n", *addr, *instruction);
- *instruction = 0x48000000;
- addr++;
- }
-}
-
-static int load_kernel(
- int xc_handle,
- int domid,
- const char *kernel_path,
- struct domain_setup_info *dsi,
- xen_pfn_t *page_array)
-{
- struct load_funcs load_funcs;
- char *kernel_img;
- unsigned long kernel_size;
- int rc;
-
- /* load the kernel ELF file */
- kernel_img = load_file(kernel_path, &kernel_size);
- if (kernel_img == NULL) {
- rc = -1;
- goto out;
- }
-
- hack_kernel_img(kernel_img);
-
- DPRINTF("probe_elf\n");
- rc = probe_elf(kernel_img, kernel_size, &load_funcs);
- if (rc < 0) {
- rc = -1;
- printf("%s is not an ELF file\n", kernel_path);
- goto out;
- }
-
- DPRINTF("parseimage\n");
- rc = (load_funcs.parseimage)(kernel_img, kernel_size, dsi);
- if (rc < 0) {
- rc = -1;
- goto out;
- }
-
- DPRINTF("loadimage\n");
- (load_funcs.loadimage)(kernel_img, kernel_size, xc_handle, domid,
- page_array, dsi);
-
- DPRINTF(" v_start %016"PRIx64"\n", dsi->v_start);
- DPRINTF(" v_end %016"PRIx64"\n", dsi->v_end);
- DPRINTF(" v_kernstart %016"PRIx64"\n", dsi->v_kernstart);
- DPRINTF(" v_kernend %016"PRIx64"\n", dsi->v_kernend);
- DPRINTF(" v_kernentry %016"PRIx64"\n", dsi->v_kernentry);
-
-out:
- free(kernel_img);
- return rc;
-}
-
static int load_initrd(
int xc_handle,
int domid,
@@ -333,9 +171,10 @@ out:
return rc;
}
-static unsigned long create_start_info(start_info_t *start_info,
+static unsigned long create_start_info(
+ start_info_t *start_info,
unsigned int console_evtchn, unsigned int store_evtchn,
- unsigned long nr_pages)
+ unsigned long nr_pages, unsigned long rma_pages)
{
unsigned long start_info_addr;
@@ -351,31 +190,6 @@ static unsigned long create_start_info(s
start_info_addr = (start_info->nr_pages - 4) << PAGE_SHIFT;
return start_info_addr;
-}
-
-static int get_page_array(int xc_handle, int domid, xen_pfn_t **page_array,
- unsigned long *nr_pages)
-{
- int rc;
-
- DPRINTF("xc_get_tot_pages\n");
- *nr_pages = xc_get_tot_pages(xc_handle, domid);
- DPRINTF(" 0x%lx\n", *nr_pages);
-
- *page_array = malloc(*nr_pages * sizeof(xen_pfn_t));
- if (*page_array == NULL) {
- perror("malloc");
- return -1;
- }
-
- DPRINTF("xc_get_pfn_list\n");
- rc = xc_get_pfn_list(xc_handle, domid, *page_array, *nr_pages);
- if (rc != *nr_pages) {
- perror("Could not get the page frame list");
- return -1;
- }
-
- return 0;
}
static void free_page_array(xen_pfn_t *page_array)
@@ -407,17 +221,28 @@ int xc_linux_build(int xc_handle,
unsigned long initrd_base = 0;
unsigned long initrd_len = 0;
unsigned long start_info_addr;
+ unsigned long rma_pages;
int rc = 0;
DPRINTF("%s\n", __func__);
- if (get_page_array(xc_handle, domid, &page_array, &nr_pages)) {
+ DPRINTF("xc_get_tot_pages\n");
+ nr_pages = xc_get_tot_pages(xc_handle, domid);
+ DPRINTF("nr_pages 0x%lx\n", nr_pages);
+
+ rma_pages = get_rma_pages(devtree);
+ if (rma_pages == 0) {
+ rc = -1;
+ goto out;
+ }
+
+ if (get_rma_page_array(xc_handle, domid, &page_array, rma_pages)) {
rc = -1;
goto out;
}
DPRINTF("loading image '%s'\n", image_name);
- if (load_kernel(xc_handle, domid, image_name, &dsi, page_array)) {
+ if (load_elf_kernel(xc_handle, domid, image_name, &dsi, page_array)) {
rc = -1;
goto out;
}
@@ -434,7 +259,7 @@ int xc_linux_build(int xc_handle,
/* start_info stuff: about to be removed */
start_info_addr = create_start_info(&start_info, console_evtchn,
- store_evtchn, nr_pages);
+ store_evtchn, nr_pages, rma_pages);
*console_mfn = page_array[start_info.console.domU.mfn];
*store_mfn = page_array[start_info.store_mfn];
if (install_image(xc_handle, domid, page_array, &start_info,
diff -r 5c3b6b623c57 -r 1a3c1168db6a tools/libxc/powerpc64/xc_prose_build.c
--- a/tools/libxc/powerpc64/xc_prose_build.c Wed Oct 18 06:50:35 2006 -0400
+++ b/tools/libxc/powerpc64/xc_prose_build.c Wed Oct 18 09:01:37 2006 -0400
@@ -35,60 +35,10 @@
#include "flatdevtree_env.h"
#include "flatdevtree.h"
+#include "utils.h"
#define INITRD_ADDR (24UL << 20)
#define DEVTREE_ADDR (16UL << 20)
-
-#define ALIGN_UP(addr,size) (((addr)+((size)-1))&(~((size)-1)))
-
-#define max(x,y) ({ \
- const typeof(x) _x = (x); \
- const typeof(y) _y = (y); \
- (void) (&_x == &_y); \
- _x > _y ? _x : _y; })
-
-static void *load_file(const char *path, unsigned long *filesize)
-{
- void *img;
- ssize_t size;
- int fd;
-
- DPRINTF("load_file(%s)\n", path);
-
- fd = open(path, O_RDONLY);
- if (fd < 0) {
- perror(path);
- return NULL;
- }
-
- size = lseek(fd, 0, SEEK_END);
- if (size < 0) {
- perror(path);
- close(fd);
- return NULL;
- }
- lseek(fd, 0, SEEK_SET);
-
- img = malloc(size);
- if (img == NULL) {
- perror(path);
- close(fd);
- return NULL;
- }
-
- size = read(fd, img, size);
- if (size <= 0) {
- perror(path);
- close(fd);
- free(img);
- return NULL;
- }
-
- if (filesize)
- *filesize = size;
- close(fd);
- return img;
-}
static int init_boot_vcpu(
int xc_handle,
@@ -128,37 +78,6 @@ static int init_boot_vcpu(
return rc;
}
-static int install_image(
- int xc_handle,
- int domid,
- xen_pfn_t *page_array,
- void *image,
- unsigned long paddr,
- unsigned long size)
-{
- uint8_t *img = image;
- int i;
- int rc = 0;
-
- if (paddr & ~PAGE_MASK) {
- printf("*** unaligned address\n");
- return -1;
- }
-
- for (i = 0; i < size; i += PAGE_SIZE) {
- void *page = img + i;
- xen_pfn_t pfn = (paddr + i) >> PAGE_SHIFT;
- xen_pfn_t mfn = page_array[pfn];
-
- rc = xc_copy_to_domain_page(xc_handle, domid, mfn, page);
- if (rc < 0) {
- perror("xc_copy_to_domain_page");
- break;
- }
- }
- return rc;
-}
-
static int load_devtree(
int xc_handle,
int domid,
@@ -238,55 +157,6 @@ static int load_devtree(
devtree_size);
}
-static int load_kernel(
- int xc_handle,
- int domid,
- const char *kernel_path,
- struct domain_setup_info *dsi,
- xen_pfn_t *page_array)
-{
- struct load_funcs load_funcs;
- char *kernel_img;
- unsigned long kernel_size;
- int rc;
-
- /* load the kernel ELF file */
- kernel_img = load_file(kernel_path, &kernel_size);
- if (kernel_img == NULL) {
- rc = -1;
- goto out;
- }
-
- DPRINTF("probe_elf\n");
- rc = probe_elf(kernel_img, kernel_size, &load_funcs);
- if (rc < 0) {
- rc = -1;
- printf("%s is not an ELF file\n", kernel_path);
- goto out;
- }
-
- DPRINTF("parseimage\n");
- rc = (load_funcs.parseimage)(kernel_img, kernel_size, dsi);
- if (rc < 0) {
- rc = -1;
- goto out;
- }
-
- DPRINTF("loadimage\n");
- (load_funcs.loadimage)(kernel_img, kernel_size, xc_handle, domid,
- page_array, dsi);
-
- DPRINTF(" v_start %016"PRIx64"\n", dsi->v_start);
- DPRINTF(" v_end %016"PRIx64"\n", dsi->v_end);
- DPRINTF(" v_kernstart %016"PRIx64"\n", dsi->v_kernstart);
- DPRINTF(" v_kernend %016"PRIx64"\n", dsi->v_kernend);
- DPRINTF(" v_kernentry %016"PRIx64"\n", dsi->v_kernentry);
-
-out:
- free(kernel_img);
- return rc;
-}
-
static int load_initrd(
int xc_handle,
int domid,
@@ -316,13 +186,12 @@ out:
return rc;
}
-static unsigned long create_start_info(void *devtree, start_info_t *start_info,
+static unsigned long create_start_info(
+ void *devtree, start_info_t *start_info,
unsigned int console_evtchn, unsigned int store_evtchn,
- unsigned long nr_pages, const char *cmdline)
-{
- void *rma;
+ unsigned long nr_pages, unsigned long rma_pages, const char *cmdline)
+{
unsigned long start_info_addr;
- uint64_t rma_reg[2];
uint64_t rma_top;
int rc;
@@ -330,17 +199,7 @@ static unsigned long create_start_info(v
snprintf(start_info->magic, sizeof(start_info->magic),
"xen-%d.%d-powerpc64HV", 3, 0);
- rma = ft_find_node(devtree, "/memory@0");
- if (rma == NULL) {
- DPRINTF("couldn't find /memory@0\n");
- return ~0UL;
- }
- rc = ft_get_prop(devtree, rma, "reg", rma_reg, sizeof(rma_reg));
- if (rc < 0) {
- DPRINTF("couldn't get /memory@0/reg\n");
- return ~0UL;
- }
- rma_top = rma_reg[0] + rma_reg[1];
+ rma_top = rma_pages << PAGE_SHIFT;
DPRINTF("RMA top = 0x%"PRIX64"\n", rma_top);
start_info->nr_pages = nr_pages;
@@ -361,37 +220,11 @@ static unsigned long create_start_info(v
return start_info_addr;
}
-static int get_page_array(int xc_handle, int domid, xen_pfn_t **page_array,
- unsigned long *nr_pages)
-{
- int rc;
-
- DPRINTF("xc_get_tot_pages\n");
- *nr_pages = xc_get_tot_pages(xc_handle, domid);
- DPRINTF(" 0x%lx\n", *nr_pages);
-
- *page_array = malloc(*nr_pages * sizeof(xen_pfn_t));
- if (*page_array == NULL) {
- perror("malloc");
- return -1;
- }
-
- DPRINTF("xc_get_pfn_list\n");
- rc = xc_get_pfn_list(xc_handle, domid, *page_array, *nr_pages);
- if (rc != *nr_pages) {
- perror("Could not get the page frame list");
- return -1;
- }
-
- return 0;
-}
static void free_page_array(xen_pfn_t *page_array)
{
free(page_array);
}
-
-
int xc_prose_build(int xc_handle,
uint32_t domid,
@@ -415,19 +248,30 @@ int xc_prose_build(int xc_handle,
unsigned long initrd_base = 0;
unsigned long initrd_len = 0;
unsigned long start_info_addr;
+ unsigned long rma_pages;
int rc = 0;
DPRINTF("%s\n", __func__);
DPRINTF("cmdline=%s\n", cmdline);
- if (get_page_array(xc_handle, domid, &page_array, &nr_pages)) {
+ DPRINTF("xc_get_tot_pages\n");
+ nr_pages = xc_get_tot_pages(xc_handle, domid);
+ DPRINTF("nr_pages 0x%lx\n", nr_pages);
+
+ rma_pages = get_rma_pages(devtree);
+ if (rma_pages == 0) {
+ rc = -1;
+ goto out;
+ }
+
+ if (get_rma_page_array(xc_handle, domid, &page_array, rma_pages)) {
rc = -1;
goto out;
}
DPRINTF("loading image '%s'\n", image_name);
- if (load_kernel(xc_handle, domid, image_name, &dsi, page_array)) {
+ if (load_elf_kernel(xc_handle, domid, image_name, &dsi, page_array)) {
rc = -1;
goto out;
}
@@ -444,7 +288,8 @@ int xc_prose_build(int xc_handle,
/* start_info stuff: about to be removed */
start_info_addr = create_start_info(devtree, &start_info, console_evtchn,
- store_evtchn, nr_pages, cmdline);
+ store_evtchn, nr_pages,
+ rma_pages, cmdline);
*console_mfn = page_array[start_info.console.domU.mfn];
*store_mfn = page_array[start_info.store_mfn];
if (install_image(xc_handle, domid, page_array, &start_info,
diff -r 5c3b6b623c57 -r 1a3c1168db6a tools/libxc/powerpc64/utils.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxc/powerpc64/utils.c Wed Oct 18 09:01:37 2006 -0400
@@ -0,0 +1,162 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation 2006
+ *
+ * Authors: Hollis Blanchard <hollisb@xxxxxxxxxx>
+ * Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <inttypes.h>
+
+#include <xen/xen.h>
+#include <xen/memory.h>
+#include <xc_private.h>
+#include <xg_private.h>
+#include <xenctrl.h>
+
+#include "flatdevtree_env.h"
+#include "flatdevtree.h"
+#include "utils.h"
+
+unsigned long get_rma_pages(void *devtree)
+{
+ void *rma;
+ uint64_t rma_reg[2];
+ int rc;
+
+ rma = ft_find_node(devtree, "/memory@0");
+ if (rma == NULL) {
+ DPRINTF("couldn't find /memory@0\n");
+ return 0;
+ }
+ rc = ft_get_prop(devtree, rma, "reg", rma_reg, sizeof(rma_reg));
+ if (rc < 0) {
+ DPRINTF("couldn't get /memory@0/reg\n");
+ return 0;
+ }
+ if (rma_reg[0] != 0) {
+ DPRINTF("RMA did not start at 0\n");
+ return 0;
+ }
+ return rma_reg[1] >> PAGE_SHIFT;
+}
+
+int get_rma_page_array(int xc_handle, int domid, xen_pfn_t **page_array,
+ unsigned long nr_pages)
+{
+ int rc;
+ int i;
+ xen_pfn_t *p;
+
+ *page_array = malloc(nr_pages * sizeof(xen_pfn_t));
+ if (*page_array == NULL) {
+ perror("malloc");
+ return -1;
+ }
+
+ DPRINTF("xc_get_pfn_list\n");
+ /* We know that the RMA is machine contiguous so lets just get the
+ * first MFN and fill the rest in ourselves */
+ rc = xc_get_pfn_list(xc_handle, domid, *page_array, 1);
+ if (rc != 1) {
+ perror("Could not get the page frame list");
+ return -1;
+ }
+ p = *page_array;
+ for (i = 1; i < nr_pages; i++)
+ p[i] = p[i - 1] + 1;
+ return 0;
+}
+
+int install_image(
+ int xc_handle,
+ int domid,
+ xen_pfn_t *page_array,
+ void *image,
+ unsigned long paddr,
+ unsigned long size)
+{
+ uint8_t *img = image;
+ int i;
+ int rc = 0;
+
+ if (paddr & ~PAGE_MASK) {
+ printf("*** unaligned address\n");
+ return -1;
+ }
+
+ for (i = 0; i < size; i += PAGE_SIZE) {
+ void *page = img + i;
+ xen_pfn_t pfn = (paddr + i) >> PAGE_SHIFT;
+ xen_pfn_t mfn = page_array[pfn];
+
+ rc = xc_copy_to_domain_page(xc_handle, domid, mfn, page);
+ if (rc < 0) {
+ perror("xc_copy_to_domain_page");
+ break;
+ }
+ }
+ return rc;
+}
+
+void *load_file(const char *path, unsigned long *filesize)
+{
+ void *img;
+ ssize_t size;
+ int fd;
+
+ DPRINTF("load_file(%s)\n", path);
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0) {
+ perror(path);
+ return NULL;
+ }
+
+ size = lseek(fd, 0, SEEK_END);
+ if (size < 0) {
+ perror(path);
+ close(fd);
+ return NULL;
+ }
+ lseek(fd, 0, SEEK_SET);
+
+ img = malloc(size);
+ if (img == NULL) {
+ perror(path);
+ close(fd);
+ return NULL;
+ }
+
+ size = read(fd, img, size);
+ if (size <= 0) {
+ perror(path);
+ close(fd);
+ free(img);
+ return NULL;
+ }
+
+ if (filesize)
+ *filesize = size;
+ close(fd);
+ return img;
+}
diff -r 5c3b6b623c57 -r 1a3c1168db6a tools/libxc/powerpc64/utils.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxc/powerpc64/utils.h Wed Oct 18 09:01:37 2006 -0400
@@ -0,0 +1,38 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation 2006
+ *
+ * Authors: Hollis Blanchard <hollisb@xxxxxxxxxx>
+ * Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
+ */
+
+extern unsigned long get_rma_pages(void *devtree);
+extern int get_rma_page_array(int xc_handle, int domid, xen_pfn_t **page_array,
+ unsigned long nr_pages);
+extern int install_image(int xc_handle, int domid, xen_pfn_t *page_array,
+ void *image, unsigned long paddr, unsigned long size);
+extern void *load_file(const char *path, unsigned long *filesize);
+extern int load_elf_kernel(int xc_handle, int domid, const char *kernel_path,
+ struct domain_setup_info *dsi,
+ xen_pfn_t *page_array);
+
+#define ALIGN_UP(addr,size) (((addr)+((size)-1))&(~((size)-1)))
+
+#define max(x,y) ({ \
+ const typeof(x) _x = (x); \
+ const typeof(y) _y = (y); \
+ (void) (&_x == &_y); \
+ _x > _y ? _x : _y; })
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