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DM Cx: add function to get cx cnt and cx data

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DM will use these functions to get cx entry cnt and cx data then inject
_CST objects to UOS DSDT table.

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>
This commit is contained in:
Victor Sun 2018-04-18 16:14:02 +08:00 committed by Jack Ren
parent bdd90e6597
commit a042538565
2 changed files with 61 additions and 2 deletions
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40
devicemodel/hw/acpi/acpi_pm.c
View File

@ -59,6 +59,17 @@ static inline uint8_t get_vcpu_px_cnt(struct vmctx *ctx, int vcpu_id)
return (uint8_t)px_cnt;
}
uint8_t get_vcpu_cx_cnt(struct vmctx *ctx, int vcpu_id)
{
uint64_t cx_cnt;
if (get_vcpu_pm_info(ctx, vcpu_id, PMCMD_GET_CX_CNT, &cx_cnt)) {
return 0;
}
return (uint8_t)cx_cnt;
}
static int get_vcpu_px_data(struct vmctx *ctx, int vcpu_id,
int px_num, struct cpu_px_data *vcpu_px_data)
{
@ -88,6 +99,35 @@ static int get_vcpu_px_data(struct vmctx *ctx, int vcpu_id,
return 0;
}
int get_vcpu_cx_data(struct vmctx *ctx, int vcpu_id,
int cx_num, struct cpu_cx_data *vcpu_cx_data)
{
uint64_t *pm_ioctl_buf;
enum pm_cmd_type cmd_type = PMCMD_GET_CX_DATA;
pm_ioctl_buf = malloc(sizeof(struct cpu_cx_data));
if (!pm_ioctl_buf) {
return -1;
}
*pm_ioctl_buf = ((ctx->vmid << PMCMD_VMID_SHIFT) & PMCMD_VMID_MASK)
| ((vcpu_id << PMCMD_VCPUID_SHIFT) & PMCMD_VCPUID_MASK)
| ((cx_num << PMCMD_STATE_NUM_SHIFT) & PMCMD_STATE_NUM_MASK)
| cmd_type;
/* get and validate cx data */
if (vm_get_cpu_state(ctx, pm_ioctl_buf)) {
free(pm_ioctl_buf);
return -1;
}
memcpy(vcpu_cx_data, pm_ioctl_buf,
sizeof(struct cpu_cx_data));
free(pm_ioctl_buf);
return 0;
}
/* _PPC: Performance Present Capabilities
* hard code _PPC to 0, all states are available.
*/

23
devicemodel/include/public/acrn_common.h
View File

@ -311,6 +311,21 @@ struct acrn_vm_pci_msix_remap {
* @brief Info The power state data of a VCPU.
*
*/
struct acrn_register {
uint8_t space_id;
uint8_t bit_width;
uint8_t bit_offset;
uint8_t access_size;
uint64_t address;
} __attribute__((aligned(8)));
struct cpu_cx_data {
struct acrn_register cx_reg;
uint8_t type;
uint32_t latency;
uint64_t power;
} __attribute__((aligned(8)));
struct cpu_px_data {
uint64_t core_frequency; /* megahertz */
uint64_t power; /* milliWatts */
@ -323,8 +338,10 @@ struct cpu_px_data {
/**
* @brief Info PM command from DM/VHM.
*
* The command would specify request type(i.e. get px count or data) for
* specific VM and specific VCPU with specific state number.like P(n).
* The command would specify request type(e.g. get px count or data) for
* specific VM and specific VCPU with specific state number.
* For Px, PMCMD_STATE_NUM means Px number from 0 to (MAX_PSTATE - 1),
* For Cx, PMCMD_STATE_NUM means Cx entry index from 1 to MAX_CX_ENTRY.
*/
#define PMCMD_VMID_MASK 0xff000000
#define PMCMD_VCPUID_MASK 0x00ff0000
@ -338,6 +355,8 @@ struct cpu_px_data {
enum pm_cmd_type {
PMCMD_GET_PX_CNT,
PMCMD_GET_PX_DATA,
PMCMD_GET_CX_CNT,
PMCMD_GET_CX_DATA,
};
/**