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xen-hvm: Clean up xen_ram_alloc() error handling 

xen_ram_alloc() dies with hw_error() on error, even though its caller
ram_block_add() handles errors just fine.  Add an Error **errp
parameter and use it.

Leave case RUN_STATE_INMIGRATE alone, because that looks like some
kind of warning.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This commit is contained in:
Markus Armbruster 2016-01-14 16:09:39 +01:00 committed by Stefano Stabellini
parent dced4d2fcb
commit 37aa7a0e2f
4 changed files with 14 additions and 6 deletions
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8
exec.c
View File

@ -1474,6 +1474,7 @@ static ram_addr_t ram_block_add(RAMBlock *new_block, Error **errp)
RAMBlock *block;
RAMBlock *last_block = NULL;
ram_addr_t old_ram_size, new_ram_size;
Error *err = NULL;
old_ram_size = last_ram_offset() >> TARGET_PAGE_BITS;
@ -1483,7 +1484,12 @@ static ram_addr_t ram_block_add(RAMBlock *new_block, Error **errp)
if (!new_block->host) {
if (xen_enabled()) {
xen_ram_alloc(new_block->offset, new_block->max_length,
new_block->mr);
new_block->mr, &err);
if (err) {
error_propagate(errp, err);
qemu_mutex_unlock_ramlist();
return -1;
}
} else {
new_block->host = phys_mem_alloc(new_block->max_length,
&new_block->mr->align);

2
include/hw/xen/xen.h
View File

@ -41,7 +41,7 @@ void xenstore_store_pv_console_info(int i, struct CharDriverState *chr);
#if defined(NEED_CPU_H) && !defined(CONFIG_USER_ONLY)
void xen_hvm_init(PCMachineState *pcms, MemoryRegion **ram_memory);
void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size,
struct MemoryRegion *mr);
struct MemoryRegion *mr, Error **errp);
void xen_modified_memory(ram_addr_t start, ram_addr_t length);
#endif

3
xen-hvm-stub.c
View File

@ -30,7 +30,8 @@ void xen_hvm_inject_msi(uint64_t addr, uint32_t data)
{
}
void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr,
Error **errp)
{
}

7
xen-hvm.c
View File

@ -239,9 +239,9 @@ static void xen_ram_init(PCMachineState *pcms,
}
}
void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr,
Error **errp)
{
/* FIXME caller ram_block_add() wants error_setg() on failure */
unsigned long nr_pfn;
xen_pfn_t *pfn_list;
int i;
@ -268,7 +268,8 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
}
if (xc_domain_populate_physmap_exact(xen_xc, xen_domid, nr_pfn, 0, 0, pfn_list)) {
hw_error("xen: failed to populate ram at " RAM_ADDR_FMT, ram_addr);
error_setg(errp, "xen: failed to populate ram at " RAM_ADDR_FMT,
ram_addr);
}
g_free(pfn_list);