Yu, Ke
2009-Jul-19 06:45 UTC
[Xen-devel] [PATCH][pvops_dom0][1/4] add acpi parser related platform hypercall
Domain0 acpi parser related platform hypercall
From: Yu Ke <ke.yu@intel.com>
This patches implements the xen_platform_op hypercall, to pass the parsed
ACPI info to hypervisor.
Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Tian Kevin <kevin.tian@intel.com>
---
include/xen/interface/platform.h | 114 ++++++++++++++++++++++++++++++++++++++
include/xen/interface/xen.h | 1
2 files changed, 115 insertions(+), 0 deletions(-)
diff --git a/include/xen/interface/platform.h b/include/xen/interface/platform.h
index 2307b0f..2f9e08e 100644
--- a/include/xen/interface/platform.h
+++ b/include/xen/interface/platform.h
@@ -199,6 +199,119 @@ struct xenpf_getidletime {
typedef struct xenpf_getidletime xenpf_getidletime_t;
DEFINE_GUEST_HANDLE_STRUCT(xenpf_getidletime_t);
+#define XENPF_set_processor_pminfo 54
+
+/* ability bits */
+#define XEN_PROCESSOR_PM_CX 1
+#define XEN_PROCESSOR_PM_PX 2
+#define XEN_PROCESSOR_PM_TX 4
+
+/* cmd type */
+#define XEN_PM_CX 0
+#define XEN_PM_PX 1
+#define XEN_PM_TX 2
+
+/* Px sub info type */
+#define XEN_PX_PCT 1
+#define XEN_PX_PSS 2
+#define XEN_PX_PPC 4
+#define XEN_PX_PSD 8
+
+struct xen_power_register {
+ uint32_t space_id;
+ uint32_t bit_width;
+ uint32_t bit_offset;
+ uint32_t access_size;
+ uint64_t address;
+};
+
+struct xen_processor_csd {
+ uint32_t domain; /* domain number of one dependent group */
+ uint32_t coord_type; /* coordination type */
+ uint32_t num; /* number of processors in same domain */
+};
+typedef struct xen_processor_csd xen_processor_csd_t;
+DEFINE_GUEST_HANDLE_STRUCT(xen_processor_csd);
+
+struct xen_processor_cx {
+ struct xen_power_register reg; /* GAS for Cx trigger register */
+ uint8_t type; /* cstate value, c0: 0, c1: 1, ... */
+ uint32_t latency; /* worst latency (ms) to enter/exit this cstate */
+ uint32_t power; /* average power consumption(mW) */
+ uint32_t dpcnt; /* number of dependency entries */
+ GUEST_HANDLE(xen_processor_csd) dp; /* NULL if no dependency */
+};
+typedef struct xen_processor_cx xen_processor_cx_t;
+DEFINE_GUEST_HANDLE_STRUCT(xen_processor_cx);
+
+struct xen_processor_flags {
+ uint32_t bm_control:1;
+ uint32_t bm_check:1;
+ uint32_t has_cst:1;
+ uint32_t power_setup_done:1;
+ uint32_t bm_rld_set:1;
+};
+
+struct xen_processor_power {
+ uint32_t count; /* number of C state entries in array below */
+ struct xen_processor_flags flags; /* global flags of this processor */
+ GUEST_HANDLE(xen_processor_cx) states; /* supported c states */
+};
+
+struct xen_pct_register {
+ uint8_t descriptor;
+ uint16_t length;
+ uint8_t space_id;
+ uint8_t bit_width;
+ uint8_t bit_offset;
+ uint8_t reserved;
+ uint64_t address;
+};
+
+struct xen_processor_px {
+ uint64_t core_frequency; /* megahertz */
+ uint64_t power; /* milliWatts */
+ uint64_t transition_latency; /* microseconds */
+ uint64_t bus_master_latency; /* microseconds */
+ uint64_t control; /* control value */
+ uint64_t status; /* success indicator */
+};
+typedef struct xen_processor_px xen_processor_px_t;
+DEFINE_GUEST_HANDLE_STRUCT(xen_processor_px);
+
+struct xen_psd_package {
+ uint64_t num_entries;
+ uint64_t revision;
+ uint64_t domain;
+ uint64_t coord_type;
+ uint64_t num_processors;
+};
+
+struct xen_processor_performance {
+ uint32_t flags; /* flag for Px sub info type */
+ uint32_t platform_limit; /* Platform limitation on freq usage */
+ struct xen_pct_register control_register;
+ struct xen_pct_register status_register;
+ uint32_t state_count; /* total available performance states */
+ GUEST_HANDLE(xen_processor_px) states;
+ struct xen_psd_package domain_info;
+ uint32_t shared_type; /* coordination type of this processor */
+};
+typedef struct xen_processor_performance xen_processor_performance_t;
+DEFINE_GUEST_HANDLE_STRUCT(xen_processor_performance);
+
+struct xenpf_set_processor_pminfo {
+ /* IN variables */
+ uint32_t id; /* ACPI CPU ID */
+ uint32_t type; /* {XEN_PM_CX, XEN_PM_PX} */
+ union {
+ struct xen_processor_power power;/* Cx: _CST/_CSD */
+ struct xen_processor_performance perf; /* Px: _PPC/_PCT/_PSS/_PSD */
+ };
+};
+typedef struct xenpf_set_processor_pminfo xenpf_set_processor_pminfo_t;
+DEFINE_GUEST_HANDLE_STRUCT(xenpf_set_processor_pminfo);
+
struct xen_platform_op {
uint32_t cmd;
uint32_t interface_version; /* XENPF_INTERFACE_VERSION */
@@ -213,6 +326,7 @@ struct xen_platform_op {
struct xenpf_enter_acpi_sleep enter_acpi_sleep;
struct xenpf_change_freq change_freq;
struct xenpf_getidletime getidletime;
+ struct xenpf_set_processor_pminfo set_pminfo;
uint8_t pad[128];
} u;
};
diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h
index 327db61..812ffd5 100644
--- a/include/xen/interface/xen.h
+++ b/include/xen/interface/xen.h
@@ -493,6 +493,7 @@ struct dom0_vga_console_info {
/* These flags are passed in the ''flags'' field of
start_info_t. */
#define SIF_PRIVILEGED (1<<0) /* Is the domain privileged? */
#define SIF_INITDOMAIN (1<<1) /* Is this the initial control domain?
*/
+#define SIF_PM_MASK (0xFF<<8) /* reserve 1 byte for xen-pm options
*/
typedef uint64_t cpumap_t;
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