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authorDr. David Alan Gilbert <dgilbert@redhat.com>2015-05-19 12:29:51 +0100
committerJuan Quintela <quintela@redhat.com>2015-06-12 06:54:01 +0200
commit37fb569c0198cba58e3e1bdf6b9702c8248b89dd (patch)
tree413b7e62608c18abc60bb11418f77344babee278
parentce39bfc9186005d222a78db4a7fbdc83e2d62481 (diff)
Disable section footers on older machine types
The next patch adds section footers; but we don't want to break migration compatibility so disable them on older machine types Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
-rw-r--r--hw/i386/pc_piix.c2
-rw-r--r--hw/i386/pc_q35.c2
-rw-r--r--include/migration/migration.h2
-rw-r--r--migration/savevm.c7
4 files changed, 12 insertions, 1 deletions
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 5253e6d4fa..e142f75649 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -52,6 +52,7 @@
#ifdef CONFIG_XEN
# include <xen/hvm/hvm_info_table.h>
#endif
+#include "migration/migration.h"
#define MAX_IDE_BUS 2
@@ -305,6 +306,7 @@ static void pc_init1(MachineState *machine)
static void pc_compat_2_3(MachineState *machine)
{
+ savevm_skip_section_footers();
}
static void pc_compat_2_2(MachineState *machine)
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 110dfb78a8..b68263d231 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -45,6 +45,7 @@
#include "hw/usb.h"
#include "hw/cpu/icc_bus.h"
#include "qemu/error-report.h"
+#include "migration/migration.h"
/* ICH9 AHCI has 6 ports */
#define MAX_SATA_PORTS 6
@@ -289,6 +290,7 @@ static void pc_q35_init(MachineState *machine)
static void pc_compat_2_3(MachineState *machine)
{
+ savevm_skip_section_footers();
}
static void pc_compat_2_2(MachineState *machine)
diff --git a/include/migration/migration.h b/include/migration/migration.h
index 720a949f0b..7bdaf5593e 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -194,6 +194,6 @@ size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
ram_addr_t offset, size_t size,
uint64_t *bytes_sent);
-
void ram_mig_init(void);
+void savevm_skip_section_footers(void);
#endif
diff --git a/migration/savevm.c b/migration/savevm.c
index 2942ed6563..80c4389ac4 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -55,6 +55,8 @@
#define ARP_PTYPE_IP 0x0800
#define ARP_OP_REQUEST_REV 0x3
+static bool skip_section_footers;
+
static int announce_self_create(uint8_t *buf,
uint8_t *mac_addr)
{
@@ -611,6 +613,11 @@ static void vmstate_save(QEMUFile *f, SaveStateEntry *se, QJSON *vmdesc)
vmstate_save_state(f, se->vmsd, se->opaque, vmdesc);
}
+void savevm_skip_section_footers(void)
+{
+ skip_section_footers = true;
+}
+
/*
* Write the header for device section (QEMU_VM_SECTION START/END/PART/FULL)
*/