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[Qemu-devel] [PULL 04/11] xen-hvm: Clean up xen_ram_alloc() error handli
From: |
Stefano Stabellini |
Subject: |
[Qemu-devel] [PULL 04/11] xen-hvm: Clean up xen_ram_alloc() error handling |
Date: |
Thu, 21 Jan 2016 17:01:23 +0000 |
From: Markus Armbruster <address@hidden>
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 <address@hidden>
Reviewed-by: Stefano Stabellini <address@hidden>
Signed-off-by: Stefano Stabellini <address@hidden>
---
exec.c | 8 +++++++-
include/hw/xen/xen.h | 2 +-
xen-hvm-stub.c | 3 ++-
xen-hvm.c | 7 ++++---
4 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/exec.c b/exec.c
index 7f0ce42..c268c36 100644
--- a/exec.c
+++ b/exec.c
@@ -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);
diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h
index d07bc99..1b81b4b 100644
--- a/include/hw/xen/xen.h
+++ b/include/hw/xen/xen.h
@@ -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
diff --git a/xen-hvm-stub.c b/xen-hvm-stub.c
index 7ff0602..b958367 100644
--- a/xen-hvm-stub.c
+++ b/xen-hvm-stub.c
@@ -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)
{
}
diff --git a/xen-hvm.c b/xen-hvm.c
index cb7128c..a9085a8 100644
--- a/xen-hvm.c
+++ b/xen-hvm.c
@@ -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);
--
1.7.10.4
- [Qemu-devel] [PULL 0/11] xen-20160121, Stefano Stabellini, 2016/01/21
- [Qemu-devel] [PULL 03/11] xen-hvm: Clean up xen_hvm_init() error handling, Stefano Stabellini, 2016/01/21
- [Qemu-devel] [PULL 05/11] xen-pvdevice: convert to realize(), Stefano Stabellini, 2016/01/21
- [Qemu-devel] [PULL 01/11] MAINTAINERS: update Xen files, Stefano Stabellini, 2016/01/21
- [Qemu-devel] [PULL 06/11] Change xen_host_pci_sysfs_path() to return void, Stefano Stabellini, 2016/01/21
- [Qemu-devel] [PULL 08/11] Add Error **errp for xen_host_pci_device_get(), Stefano Stabellini, 2016/01/21
- [Qemu-devel] [PULL 09/11] Add Error **errp for xen_pt_setup_vga(), Stefano Stabellini, 2016/01/21