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setmem: introduce VIR_DOMAIN_MEM_CURRENT flag

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This patch introduces VIR_DOMAIN_MEM_CURRENT flag and
modifies virDomainSetMemoryFlags function to support it.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
This commit is contained in:
Taku Izumi 2011-03-23 14:47:21 +09:00 committed by Eric Blake
parent f7e9b44812
commit 0f2e50be5f
2 changed files with 14 additions and 9 deletions
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5
include/libvirt/libvirt.h.in
View File

@ -854,8 +854,9 @@ int virDomainGetMemoryParameters(virDomainPtr domain,
/* Memory size modification flags. */
typedef enum {
VIR_DOMAIN_MEM_LIVE = (1 << 0), /* affect active domain */
VIR_DOMAIN_MEM_CONFIG = (1 << 1), /* affect next boot */
VIR_DOMAIN_MEM_CURRENT = 0, /* affect current domain state */
VIR_DOMAIN_MEM_LIVE = (1 << 0), /* affect active domain */
VIR_DOMAIN_MEM_CONFIG = (1 << 1), /* affect next boot */
} virDomainMemoryModFlags;

18
src/libvirt.c
View File

@ -2822,12 +2822,17 @@ error:
* Dynamically change the target amount of physical memory allocated to a
* domain. If domain is NULL, then this change the amount of memory reserved
* to Domain0 i.e. the domain where the application runs.
* This funcation may requires privileged access to the hypervisor.
* This function may requires privileged access to the hypervisor.
*
* @flags must include VIR_DOMAIN_MEM_LIVE to affect a running
* domain (which may fail if domain is not active), or
* VIR_DOMAIN_MEM_CONFIG to affect the next boot via the XML
* description of the domain. Both flags may be set.
* @flags may include VIR_DOMAIN_MEM_LIVE or VIR_DOMAIN_MEM_CONFIG.
* Both flags may be set. If VIR_DOMAIN_MEM_LIVE is set, the change affects
* a running domain and will fail if domain is not active.
* If VIR_DOMAIN_MEM_CONFIG is set, the change affects persistent state,
* and will fail for transient domains. If neither flag is specified
* (that is, @flags is VIR_DOMAIN_MEM_CURRENT), then an inactive domain
* modifies persistent setup, while an active domain is hypervisor-dependent
* on whether just live or both live and persistent state is changed.
* Not all hypervisors can support all flag combinations.
*
* Returns 0 in case of success, -1 in case of failure.
*/
@ -2853,8 +2858,7 @@ virDomainSetMemoryFlags(virDomainPtr domain, unsigned long memory,
goto error;
}
if (memory < 4096 ||
(flags & (VIR_DOMAIN_MEM_LIVE | VIR_DOMAIN_MEM_CONFIG)) == 0) {
if (memory < 4096) {
virLibDomainError(VIR_ERR_INVALID_ARG, __FUNCTION__);
goto error;
}