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Diffstat (limited to 'tools/libxc/xc_linux_build.c')
-rw-r--r--tools/libxc/xc_linux_build.c157
1 files changed, 17 insertions, 140 deletions
diff --git a/tools/libxc/xc_linux_build.c b/tools/libxc/xc_linux_build.c
index cc4c0f4561..dd903751a9 100644
--- a/tools/libxc/xc_linux_build.c
+++ b/tools/libxc/xc_linux_build.c
@@ -41,52 +41,6 @@ loadelfsymtab(
char *elfbase, int xch, u32 dom, unsigned long *parray,
struct domain_setup_info *dsi);
-static long get_tot_pages(int xc_handle, u32 domid)
-{
- dom0_op_t op;
- op.cmd = DOM0_GETDOMAININFO;
- op.u.getdomaininfo.domain = (domid_t)domid;
- op.u.getdomaininfo.ctxt = NULL;
- return (do_dom0_op(xc_handle, &op) < 0) ?
- -1 : op.u.getdomaininfo.tot_pages;
-}
-
-static int get_pfn_list(int xc_handle,
- u32 domid,
- unsigned long *pfn_buf,
- unsigned long max_pfns)
-{
- dom0_op_t op;
- int ret;
- op.cmd = DOM0_GETMEMLIST;
- op.u.getmemlist.domain = (domid_t)domid;
- op.u.getmemlist.max_pfns = max_pfns;
- op.u.getmemlist.buffer = pfn_buf;
-
- if ( mlock(pfn_buf, max_pfns * sizeof(unsigned long)) != 0 )
- return -1;
-
- ret = do_dom0_op(xc_handle, &op);
-
- (void)munlock(pfn_buf, max_pfns * sizeof(unsigned long));
-
- return (ret < 0) ? -1 : op.u.getmemlist.num_pfns;
-}
-
-static int copy_to_domain_page(int xc_handle,
- u32 domid,
- unsigned long dst_pfn,
- void *src_page)
-{
- void *vaddr = xc_map_foreign_range(
- xc_handle, domid, PAGE_SIZE, PROT_WRITE, dst_pfn);
- if ( vaddr == NULL )
- return -1;
- memcpy(vaddr, src_page, PAGE_SIZE);
- munmap(vaddr, PAGE_SIZE);
- return 0;
-}
-
static int setup_guestos(int xc_handle,
u32 dom,
char *image, unsigned long image_size,
@@ -97,7 +51,8 @@ static int setup_guestos(int xc_handle,
const char *cmdline,
unsigned long shared_info_frame,
unsigned int control_evtchn,
- unsigned long flags)
+ unsigned long flags,
+ unsigned int vcpus)
{
l1_pgentry_t *vl1tab=NULL, *vl1e=NULL;
l2_pgentry_t *vl2tab=NULL, *vl2e=NULL;
@@ -204,7 +159,7 @@ static int setup_guestos(int xc_handle,
goto error_out;
}
- if ( get_pfn_list(xc_handle, dom, page_array, nr_pages) != nr_pages )
+ if ( xc_get_pfn_list(xc_handle, dom, page_array, nr_pages) != nr_pages )
{
PERROR("Could not get the page frame list");
goto error_out;
@@ -227,7 +182,7 @@ static int setup_guestos(int xc_handle,
PERROR("Error reading initrd image, could not");
goto error_out;
}
- copy_to_domain_page(xc_handle, dom,
+ xc_copy_to_domain_page(xc_handle, dom,
page_array[i>>PAGE_SHIFT], page);
}
}
@@ -335,6 +290,10 @@ static int setup_guestos(int xc_handle,
/* Mask all upcalls... */
for ( i = 0; i < MAX_VIRT_CPUS; i++ )
shared_info->vcpu_data[i].evtchn_upcall_mask = 1;
+
+ shared_info->n_vcpu = vcpus;
+ printf(" VCPUS: %d\n", shared_info->n_vcpu);
+
munmap(shared_info, PAGE_SIZE);
/* Send the page update requests down to the hypervisor. */
@@ -357,76 +316,14 @@ static int setup_guestos(int xc_handle,
return -1;
}
-static unsigned long get_filesz(int fd)
-{
- u16 sig;
- u32 _sz = 0;
- unsigned long sz;
-
- lseek(fd, 0, SEEK_SET);
- read(fd, &sig, sizeof(sig));
- sz = lseek(fd, 0, SEEK_END);
- if ( sig == 0x8b1f ) /* GZIP signature? */
- {
- lseek(fd, -4, SEEK_END);
- read(fd, &_sz, 4);
- sz = _sz;
- }
- lseek(fd, 0, SEEK_SET);
-
- return sz;
-}
-
-static char *read_kernel_image(const char *filename, unsigned long *size)
-{
- int kernel_fd = -1;
- gzFile kernel_gfd = NULL;
- char *image = NULL;
- unsigned int bytes;
-
- if ( (kernel_fd = open(filename, O_RDONLY)) < 0 )
- {
- PERROR("Could not open kernel image");
- goto out;
- }
-
- *size = get_filesz(kernel_fd);
-
- if ( (kernel_gfd = gzdopen(kernel_fd, "rb")) == NULL )
- {
- PERROR("Could not allocate decompression state for state file");
- goto out;
- }
-
- if ( (image = malloc(*size)) == NULL )
- {
- PERROR("Could not allocate memory for kernel image");
- goto out;
- }
-
- if ( (bytes = gzread(kernel_gfd, image, *size)) != *size )
- {
- PERROR("Error reading kernel image, could not"
- " read the whole image (%d != %ld).", bytes, *size);
- free(image);
- image = NULL;
- }
-
- out:
- if ( kernel_gfd != NULL )
- gzclose(kernel_gfd);
- else if ( kernel_fd >= 0 )
- close(kernel_fd);
- return image;
-}
-
int xc_linux_build(int xc_handle,
u32 domid,
const char *image_name,
const char *ramdisk_name,
const char *cmdline,
unsigned int control_evtchn,
- unsigned long flags)
+ unsigned long flags,
+ unsigned int vcpus)
{
dom0_op_t launch_op, op;
int initrd_fd = -1;
@@ -438,13 +335,13 @@ int xc_linux_build(int xc_handle,
unsigned long image_size, initrd_size=0;
unsigned long vstartinfo_start, vkern_entry;
- if ( (nr_pages = get_tot_pages(xc_handle, domid)) < 0 )
+ if ( (nr_pages = xc_get_tot_pages(xc_handle, domid)) < 0 )
{
PERROR("Could not find total pages for domain");
goto error_out;
}
- if ( (image = read_kernel_image(image_name, &image_size)) == NULL )
+ if ( (image = xc_read_kernel_image(image_name, &image_size)) == NULL )
goto error_out;
if ( (ramdisk_name != NULL) && (strlen(ramdisk_name) != 0) )
@@ -455,7 +352,7 @@ int xc_linux_build(int xc_handle,
goto error_out;
}
- initrd_size = get_filesz(initrd_fd);
+ initrd_size = xc_get_filesz(initrd_fd);
if ( (initrd_gfd = gzdopen(initrd_fd, "rb")) == NULL )
{
@@ -472,6 +369,7 @@ int xc_linux_build(int xc_handle,
op.cmd = DOM0_GETDOMAININFO;
op.u.getdomaininfo.domain = (domid_t)domid;
+ op.u.getdomaininfo.exec_domain = 0;
op.u.getdomaininfo.ctxt = ctxt;
if ( (do_dom0_op(xc_handle, &op) < 0) ||
((u16)op.u.getdomaininfo.domain != domid) )
@@ -491,7 +389,7 @@ int xc_linux_build(int xc_handle,
&vstartinfo_start, &vkern_entry,
ctxt, cmdline,
op.u.getdomaininfo.shared_info_frame,
- control_evtchn, flags) < 0 )
+ control_evtchn, flags, vcpus) < 0 )
{
ERROR("Error constructing guest OS");
goto error_out;
@@ -740,27 +638,6 @@ loadelfimage(
return 0;
}
-static void
-map_memcpy(
- unsigned long dst, char *src, unsigned long size,
- int xch, u32 dom, unsigned long *parray, unsigned long vstart)
-{
- char *va;
- unsigned long chunksz, done, pa;
-
- for ( done = 0; done < size; done += chunksz )
- {
- pa = dst + done - vstart;
- va = xc_map_foreign_range(
- xch, dom, PAGE_SIZE, PROT_WRITE, parray[pa>>PAGE_SHIFT]);
- chunksz = size - done;
- if ( chunksz > (PAGE_SIZE - (pa & (PAGE_SIZE-1))) )
- chunksz = PAGE_SIZE - (pa & (PAGE_SIZE-1));
- memcpy(va + (pa & (PAGE_SIZE-1)), src + done, chunksz);
- munmap(va, PAGE_SIZE);
- }
-}
-
#define ELFROUND (ELFSIZE / 8)
static int
@@ -811,7 +688,7 @@ loadelfsymtab(
(shdr[h].sh_type == SHT_SYMTAB) )
{
if ( parray != NULL )
- map_memcpy(maxva, elfbase + shdr[h].sh_offset, shdr[h].sh_size,
+ xc_map_memcpy(maxva, elfbase + shdr[h].sh_offset, shdr[h].sh_size,
xch, dom, parray, dsi->v_start);
/* Mangled to be based on ELF header location. */
@@ -843,7 +720,7 @@ loadelfsymtab(
sym_ehdr->e_shstrndx = SHN_UNDEF;
/* Copy total length, crafted ELF header and section header table */
- map_memcpy(symva, p, sizeof(int) + sizeof(Elf_Ehdr) +
+ xc_map_memcpy(symva, p, sizeof(int) + sizeof(Elf_Ehdr) +
ehdr->e_shnum * sizeof(Elf_Shdr), xch, dom, parray,
dsi->v_start);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 18:37:40 +0000