aboutsummaryrefslogtreecommitdiffstats
path: root/tools/libxc/xc_linux_save.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/libxc/xc_linux_save.c')
-rw-r--r--tools/libxc/xc_linux_save.c120
1 files changed, 63 insertions, 57 deletions
diff --git a/tools/libxc/xc_linux_save.c b/tools/libxc/xc_linux_save.c
index b5008a6cee..a38f80c7fe 100644
--- a/tools/libxc/xc_linux_save.c
+++ b/tools/libxc/xc_linux_save.c
@@ -363,19 +363,19 @@ static int suspend_and_state(int (*suspend)(int), int xc_handle, int io_fd,
int i = 0;
if (!(*suspend)(dom)) {
- ERR("Suspend request failed");
+ ERROR("Suspend request failed");
return -1;
}
retry:
if (xc_domain_getinfo(xc_handle, dom, 1, info) != 1) {
- ERR("Could not get domain info");
+ ERROR("Could not get domain info");
return -1;
}
if ( xc_vcpu_getcontext(xc_handle, dom, 0 /* XXX */, ctxt))
- ERR("Could not get vcpu context");
+ ERROR("Could not get vcpu context");
if (info->shutdown && info->shutdown_reason == SHUTDOWN_suspend)
@@ -385,7 +385,7 @@ static int suspend_and_state(int (*suspend)(int), int xc_handle, int io_fd,
// try unpausing domain, wait, and retest
xc_domain_unpause( xc_handle, dom );
- ERR("Domain was paused. Wait and re-test.");
+ ERROR("Domain was paused. Wait and re-test.");
usleep(10000); // 10ms
goto retry;
@@ -393,12 +393,12 @@ static int suspend_and_state(int (*suspend)(int), int xc_handle, int io_fd,
if( ++i < 100 ) {
- ERR("Retry suspend domain.");
+ ERROR("Retry suspend domain.");
usleep(10000); // 10ms
goto retry;
}
- ERR("Unable to suspend domain.");
+ ERROR("Unable to suspend domain.");
return -1;
}
@@ -413,7 +413,7 @@ static int suspend_and_state(int (*suspend)(int), int xc_handle, int io_fd,
** which entries do not require canonicalization (in particular, those
** entries which map the virtual address reserved for the hypervisor).
*/
-int canonicalize_pagetable(unsigned long type, unsigned long pfn,
+static int canonicalize_pagetable(unsigned long type, unsigned long pfn,
const void *spage, void *dpage)
{
@@ -516,25 +516,25 @@ static xen_pfn_t *xc_map_m2p(int xc_handle,
xmml.max_extents = m2p_chunks;
if (!(extent_start = malloc(m2p_chunks * sizeof(xen_pfn_t)))) {
- ERR("failed to allocate space for m2p mfns");
+ ERROR("failed to allocate space for m2p mfns");
return NULL;
}
set_xen_guest_handle(xmml.extent_start, extent_start);
if (xc_memory_op(xc_handle, XENMEM_machphys_mfn_list, &xmml) ||
(xmml.nr_extents != m2p_chunks)) {
- ERR("xc_get_m2p_mfns");
+ ERROR("xc_get_m2p_mfns");
return NULL;
}
if ((m2p = mmap(NULL, m2p_size, prot,
MAP_SHARED, xc_handle, 0)) == MAP_FAILED) {
- ERR("failed to mmap m2p");
+ ERROR("failed to mmap m2p");
return NULL;
}
if (!(entries = malloc(m2p_chunks * sizeof(privcmd_mmap_entry_t)))) {
- ERR("failed to allocate space for mmap entries");
+ ERROR("failed to allocate space for mmap entries");
return NULL;
}
@@ -546,7 +546,7 @@ static xen_pfn_t *xc_map_m2p(int xc_handle,
if ((rc = xc_map_foreign_ranges(xc_handle, DOMID_XEN,
entries, m2p_chunks)) < 0) {
- ERR("xc_mmap_foreign_ranges failed (rc = %d)", rc);
+ ERROR("xc_mmap_foreign_ranges failed (rc = %d)", rc);
return NULL;
}
@@ -619,23 +619,23 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
if(!get_platform_info(xc_handle, dom,
&max_mfn, &hvirt_start, &pt_levels)) {
- ERR("Unable to get platform info.");
+ ERROR("Unable to get platform info.");
return 1;
}
if (xc_domain_getinfo(xc_handle, dom, 1, &info) != 1) {
- ERR("Could not get domain info");
+ ERROR("Could not get domain info");
return 1;
}
- if (mlock(&ctxt, sizeof(ctxt))) {
- ERR("Unable to mlock ctxt");
+ if (lock_pages(&ctxt, sizeof(ctxt))) {
+ ERROR("Unable to lock ctxt");
return 1;
}
/* Only have to worry about vcpu 0 even for SMP */
if (xc_vcpu_getcontext(xc_handle, dom, 0, &ctxt)) {
- ERR("Could not get vcpu context");
+ ERROR("Could not get vcpu context");
goto out;
}
shared_info_frame = info.shared_info_frame;
@@ -643,13 +643,13 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
/* A cheesy test to see whether the domain contains valid state. */
if (ctxt.ctrlreg[3] == 0)
{
- ERR("Domain is not in a valid Linux guest OS state");
+ ERROR("Domain is not in a valid Linux guest OS state");
goto out;
}
/* cheesy sanity check */
if ((info.max_memkb >> (PAGE_SHIFT - 10)) > max_mfn) {
- ERR("Invalid state record -- pfn count out of range: %lu",
+ ERROR("Invalid state record -- pfn count out of range: %lu",
(info.max_memkb >> (PAGE_SHIFT - 10)));
goto out;
}
@@ -657,7 +657,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
/* Map the shared info frame */
if(!(live_shinfo = xc_map_foreign_range(xc_handle, dom, PAGE_SIZE,
PROT_READ, shared_info_frame))) {
- ERR("Couldn't map live_shinfo");
+ ERROR("Couldn't map live_shinfo");
goto out;
}
@@ -668,7 +668,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
live_shinfo->arch.pfn_to_mfn_frame_list_list);
if (!live_p2m_frame_list_list) {
- ERR("Couldn't map p2m_frame_list_list (errno %d)", errno);
+ ERROR("Couldn't map p2m_frame_list_list (errno %d)", errno);
goto out;
}
@@ -678,7 +678,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
P2M_FLL_ENTRIES);
if (!live_p2m_frame_list) {
- ERR("Couldn't map p2m_frame_list");
+ ERROR("Couldn't map p2m_frame_list");
goto out;
}
@@ -692,20 +692,20 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
P2M_FL_ENTRIES);
if (!live_p2m) {
- ERR("Couldn't map p2m table");
+ ERROR("Couldn't map p2m table");
goto out;
}
/* Setup the mfn_to_pfn table mapping */
if(!(live_m2p = xc_map_m2p(xc_handle, max_mfn, PROT_READ))) {
- ERR("Failed to map live M2P table");
+ ERROR("Failed to map live M2P table");
goto out;
}
/* Get a local copy of the live_P2M_frame_list */
if(!(p2m_frame_list = malloc(P2M_FL_SIZE))) {
- ERR("Couldn't allocate p2m_frame_list array");
+ ERROR("Couldn't allocate p2m_frame_list array");
goto out;
}
memcpy(p2m_frame_list, live_p2m_frame_list, P2M_FL_SIZE);
@@ -713,8 +713,8 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
/* Canonicalise the pfn-to-mfn table frame-number list. */
for (i = 0; i < max_pfn; i += fpp) {
if (!translate_mfn_to_pfn(&p2m_frame_list[i/fpp])) {
- ERR("Frame# in pfn-to-mfn frame list is not in pseudophys");
- ERR("entry %d: p2m_frame_list[%ld] is 0x%"PRIx64, i, i/fpp,
+ ERROR("Frame# in pfn-to-mfn frame list is not in pseudophys");
+ ERROR("entry %d: p2m_frame_list[%ld] is 0x%"PRIx64, i, i/fpp,
(uint64_t)p2m_frame_list[i/fpp]);
goto out;
}
@@ -726,7 +726,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
if (xc_shadow_control(xc_handle, dom,
XEN_DOMCTL_SHADOW_OP_ENABLE_LOGDIRTY,
NULL, 0, NULL, 0, NULL) < 0) {
- ERR("Couldn't enable shadow mode");
+ ERROR("Couldn't enable shadow mode");
goto out;
}
@@ -740,7 +740,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
last_iter = 1;
if (suspend_and_state(suspend, xc_handle, io_fd, dom, &info, &ctxt)) {
- ERR("Domain appears not to have suspended");
+ ERROR("Domain appears not to have suspended");
goto out;
}
@@ -761,20 +761,20 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
to_skip = malloc(BITMAP_SIZE);
if (!to_send || !to_fix || !to_skip) {
- ERR("Couldn't allocate to_send array");
+ ERROR("Couldn't allocate to_send array");
goto out;
}
memset(to_send, 0xff, BITMAP_SIZE);
- if (mlock(to_send, BITMAP_SIZE)) {
- ERR("Unable to mlock to_send");
+ if (lock_pages(to_send, BITMAP_SIZE)) {
+ ERROR("Unable to lock to_send");
return 1;
}
/* (to fix is local only) */
- if (mlock(to_skip, BITMAP_SIZE)) {
- ERR("Unable to mlock to_skip");
+ if (lock_pages(to_skip, BITMAP_SIZE)) {
+ ERROR("Unable to lock to_skip");
return 1;
}
@@ -785,13 +785,13 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
pfn_batch = calloc(MAX_BATCH_SIZE, sizeof(*pfn_batch));
if ((pfn_type == NULL) || (pfn_batch == NULL)) {
- ERR("failed to alloc memory for pfn_type and/or pfn_batch arrays");
+ ERROR("failed to alloc memory for pfn_type and/or pfn_batch arrays");
errno = ENOMEM;
goto out;
}
- if (mlock(pfn_type, MAX_BATCH_SIZE * sizeof(*pfn_type))) {
- ERR("Unable to mlock");
+ if (lock_pages(pfn_type, MAX_BATCH_SIZE * sizeof(*pfn_type))) {
+ ERROR("Unable to lock");
goto out;
}
@@ -817,7 +817,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
/* Start writing out the saved-domain record. */
if (!write_exact(io_fd, &max_pfn, sizeof(unsigned long))) {
- ERR("write: max_pfn");
+ ERROR("write: max_pfn");
goto out;
}
@@ -837,13 +837,13 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
!write_exact(io_fd, &chunk_sig, 4) ||
!write_exact(io_fd, &chunk_sz, sizeof(chunk_sz)) ||
!write_exact(io_fd, &ctxt, sizeof(ctxt))) {
- ERR("write: extended info");
+ ERROR("write: extended info");
goto out;
}
}
if (!write_exact(io_fd, p2m_frame_list, P2M_FL_SIZE)) {
- ERR("write: p2m_frame_list");
+ ERROR("write: p2m_frame_list");
goto out;
}
@@ -877,7 +877,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
if (!last_iter && xc_shadow_control(
xc_handle, dom, XEN_DOMCTL_SHADOW_OP_PEEK,
to_skip, max_pfn, NULL, 0, NULL) != max_pfn) {
- ERR("Error peeking shadow bitmap");
+ ERROR("Error peeking shadow bitmap");
goto out;
}
@@ -942,12 +942,12 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
if ((region_base = xc_map_foreign_batch(
xc_handle, dom, PROT_READ, pfn_type, batch)) == 0) {
- ERR("map batch failed");
+ ERROR("map batch failed");
goto out;
}
if (xc_get_pfn_type_batch(xc_handle, dom, batch, pfn_type)) {
- ERR("get_pfn_type_batch failed");
+ ERROR("get_pfn_type_batch failed");
goto out;
}
@@ -978,12 +978,14 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
}
if(!write_exact(io_fd, &batch, sizeof(unsigned int))) {
- ERR("Error when writing to state file (2)");
+ ERROR("Error when writing to state file (2) (errno %d)",
+ errno);
goto out;
}
if(!write_exact(io_fd, pfn_type, sizeof(unsigned long)*j)) {
- ERR("Error when writing to state file (3)");
+ ERROR("Error when writing to state file (3) (errno %d)",
+ errno);
goto out;
}
@@ -1013,7 +1015,8 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
goto out;
if (ratewrite(io_fd, page, PAGE_SIZE) != PAGE_SIZE) {
- ERR("Error when writing to state file (4)");
+ ERROR("Error when writing to state file (4)"
+ " (errno %d)", errno);
goto out;
}
@@ -1021,7 +1024,8 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
/* We have a normal page: just write it directly. */
if (ratewrite(io_fd, spage, PAGE_SIZE) != PAGE_SIZE) {
- ERR("Error when writing to state file (5)");
+ ERROR("Error when writing to state file (5)"
+ " (errno %d)", errno);
goto out;
}
}
@@ -1056,7 +1060,8 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
/* send "-1" to put receiver into debug mode */
if(!write_exact(io_fd, &minusone, sizeof(int))) {
- ERR("Error when writing to state file (6)");
+ ERROR("Error when writing to state file (6) (errno %d)",
+ errno);
goto out;
}
@@ -1079,7 +1084,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
if (suspend_and_state(suspend, xc_handle, io_fd, dom, &info,
&ctxt)) {
- ERR("Domain appears not to have suspended");
+ ERROR("Domain appears not to have suspended");
goto out;
}
@@ -1092,7 +1097,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
if (xc_shadow_control(xc_handle, dom,
XEN_DOMCTL_SHADOW_OP_CLEAN, to_send,
max_pfn, NULL, 0, &stats) != max_pfn) {
- ERR("Error flushing shadow PT");
+ ERROR("Error flushing shadow PT");
goto out;
}
@@ -1110,7 +1115,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
/* Zero terminate */
i = 0;
if (!write_exact(io_fd, &i, sizeof(int))) {
- ERR("Error when writing to state file (6)");
+ ERROR("Error when writing to state file (6') (errno %d)", errno);
goto out;
}
@@ -1125,7 +1130,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
}
if(!write_exact(io_fd, &j, sizeof(unsigned int))) {
- ERR("Error when writing to state file (6a)");
+ ERROR("Error when writing to state file (6a) (errno %d)", errno);
goto out;
}
@@ -1137,7 +1142,8 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
i++;
if (j == 1024 || i == max_pfn) {
if(!write_exact(io_fd, &pfntab, sizeof(unsigned long)*j)) {
- ERR("Error when writing to state file (6b)");
+ ERROR("Error when writing to state file (6b) (errno %d)",
+ errno);
goto out;
}
j = 0;
@@ -1148,21 +1154,21 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
/* Canonicalise the suspend-record frame number. */
if ( !translate_mfn_to_pfn(&ctxt.user_regs.edx) ){
- ERR("Suspend record is not in range of pseudophys map");
+ ERROR("Suspend record is not in range of pseudophys map");
goto out;
}
/* Canonicalise each GDT frame number. */
for ( i = 0; i < ctxt.gdt_ents; i += 512 ) {
if ( !translate_mfn_to_pfn(&ctxt.gdt_frames[i]) ) {
- ERR("GDT frame is not in range of pseudophys map");
+ ERROR("GDT frame is not in range of pseudophys map");
goto out;
}
}
/* Canonicalise the page table base pointer. */
if ( !MFN_IS_IN_PSEUDOPHYS_MAP(xen_cr3_to_pfn(ctxt.ctrlreg[3])) ) {
- ERR("PT base is not in range of pseudophys map");
+ ERROR("PT base is not in range of pseudophys map");
goto out;
}
ctxt.ctrlreg[3] =
@@ -1170,7 +1176,7 @@ int xc_linux_save(int xc_handle, int io_fd, uint32_t dom, uint32_t max_iters,
if (!write_exact(io_fd, &ctxt, sizeof(ctxt)) ||
!write_exact(io_fd, live_shinfo, PAGE_SIZE)) {
- ERR("Error when writing to state file (1)");
+ ERROR("Error when writing to state file (1) (errno %d)", errno);
goto out;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-21 20:23:26 +0000