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xen: move physmap saving into a separate function 

Non-functional change.

Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
This commit is contained in:
Igor Druzhinin 2017-07-10 23:40:00 +01:00 committed by Stefano Stabellini
parent 04d6da4ff6
commit 697b66d006
1 changed files with 31 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
hw/i386/xen/xen-hvm.c
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@ -304,6 +304,36 @@ static hwaddr xen_phys_offset_to_gaddr(hwaddr start_addr,
return start_addr;
}
static int xen_save_physmap(XenIOState *state, XenPhysmap *physmap)
{
char path[80], value[17];
snprintf(path, sizeof(path),
"/local/domain/0/device-model/%d/physmap/%"PRIx64"/start_addr",
xen_domid, (uint64_t)physmap->phys_offset);
snprintf(value, sizeof(value), "%"PRIx64, (uint64_t)physmap->start_addr);
if (!xs_write(state->xenstore, 0, path, value, strlen(value))) {
return -1;
}
snprintf(path, sizeof(path),
"/local/domain/0/device-model/%d/physmap/%"PRIx64"/size",
xen_domid, (uint64_t)physmap->phys_offset);
snprintf(value, sizeof(value), "%"PRIx64, (uint64_t)physmap->size);
if (!xs_write(state->xenstore, 0, path, value, strlen(value))) {
return -1;
}
if (physmap->name) {
snprintf(path, sizeof(path),
"/local/domain/0/device-model/%d/physmap/%"PRIx64"/name",
xen_domid, (uint64_t)physmap->phys_offset);
if (!xs_write(state->xenstore, 0, path,
physmap->name, strlen(physmap->name))) {
return -1;
}
}
return 0;
}
static int xen_add_to_physmap(XenIOState *state,
hwaddr start_addr,
ram_addr_t size,
@ -315,7 +345,6 @@ static int xen_add_to_physmap(XenIOState *state,
XenPhysmap *physmap = NULL;
hwaddr pfn, start_gpfn;
hwaddr phys_offset = memory_region_get_ram_addr(mr);
char path[80], value[17];
const char *mr_name;
if (get_physmapping(state, start_addr, size)) {
@ -367,31 +396,7 @@ go_physmap:
start_addr >> TARGET_PAGE_BITS,
(start_addr + size - 1) >> TARGET_PAGE_BITS,
XEN_DOMCTL_MEM_CACHEATTR_WB);
snprintf(path, sizeof(path),
"/local/domain/0/device-model/%d/physmap/%"PRIx64"/start_addr",
xen_domid, (uint64_t)phys_offset);
snprintf(value, sizeof(value), "%"PRIx64, (uint64_t)start_addr);
if (!xs_write(state->xenstore, 0, path, value, strlen(value))) {
return -1;
}
snprintf(path, sizeof(path),
"/local/domain/0/device-model/%d/physmap/%"PRIx64"/size",
xen_domid, (uint64_t)phys_offset);
snprintf(value, sizeof(value), "%"PRIx64, (uint64_t)size);
if (!xs_write(state->xenstore, 0, path, value, strlen(value))) {
return -1;
}
if (mr_name) {
snprintf(path, sizeof(path),
"/local/domain/0/device-model/%d/physmap/%"PRIx64"/name",
xen_domid, (uint64_t)phys_offset);
if (!xs_write(state->xenstore, 0, path, mr_name, strlen(mr_name))) {
return -1;
}
}
return 0;
return xen_save_physmap(state, physmap);
}
static int xen_remove_from_physmap(XenIOState *state,