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xen/acpi: ACPI memory hotplug

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This patch implements real Xen acpi memory hotplug driver as module.
When loaded, it replaces Xen stub driver.

When an acpi memory device hotadd event occurs, it notifies OS and
invokes notification callback, adding related memory device and parsing
memory information, finally hypercall to xen hypervisor to add memory.

Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Liu Jinsong
2013-01-24 20:19:47 +08:00
committed by Konrad Rzeszutek Wilk
parent dcb93b96ce
commit ef92e7caf9
4 changed files with 522 additions and 4 deletions
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13
include/xen/interface/platform.h
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@@ -324,10 +324,14 @@ struct xenpf_cpu_ol {
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_cpu_ol);
/*
* CMD 58 and 59 are reserved for cpu hotadd and memory hotadd,
* which are already occupied at Xen hypervisor side.
*/
#define XENPF_mem_hotadd 59
struct xenpf_mem_hotadd {
uint64_t spfn;
uint64_t epfn;
uint32_t pxm;
uint32_t flags;
};
#define XENPF_core_parking 60
struct xenpf_core_parking {
/* IN variables */
@@ -357,6 +361,7 @@ struct xen_platform_op {
struct xenpf_set_processor_pminfo set_pminfo;
struct xenpf_pcpuinfo pcpu_info;
struct xenpf_cpu_ol cpu_ol;
struct xenpf_mem_hotadd mem_add;
struct xenpf_core_parking core_parking;
uint8_t pad[128];
} u;