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HV Cx: load cx data while create VM

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Each VM would have its own Cx data, for now we copy it from boot_cpu_info.

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 00:07:38 +08:00 committed by lijinxia
parent 2f678be24d
commit 4b302372a0
2 changed files with 32 additions and 1 deletions
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29
arch/x86/guest/pm.c
View File

@ -31,6 +31,7 @@
#include <acrn_common.h>
#include <hv_lib.h>
#include <hv_arch.h>
#include <hv_debug.h>
int validate_pstate(struct vm *vm, uint64_t perf_ctl)
{
@ -82,7 +83,35 @@ static void vm_setup_cpu_px(struct vm *vm)
}
static void vm_setup_cpu_cx(struct vm *vm)
{
uint32_t cx_data_size;
vm->pm.cx_cnt = 0;
memset(vm->pm.cx_data, 0, MAX_CSTATE * sizeof(struct cpu_cx_data));
if ((!boot_cpu_data.state_info.cx_cnt)
|| (!boot_cpu_data.state_info.cx_data)) {
return;
}
ASSERT ((boot_cpu_data.state_info.cx_cnt <= MAX_CX_ENTRY),
"failed to setup cpu cx");
vm->pm.cx_cnt = boot_cpu_data.state_info.cx_cnt;
cx_data_size = vm->pm.cx_cnt * sizeof(struct cpu_cx_data);
/* please note pm.cx_data[0] is a empty space holder,
* pm.cx_data[1...MAX_CX_ENTRY] would be used to store cx entry datas.
*/
memcpy_s(vm->pm.cx_data + 1, cx_data_size,
boot_cpu_data.state_info.cx_data, cx_data_size);
}
void vm_setup_cpu_state(struct vm *vm)
{
vm_setup_cpu_px(vm);
vm_setup_cpu_cx(vm);
}

4
include/arch/x86/guest/vm.h
View File

@ -81,8 +81,10 @@ struct vm_sw_info {
};
struct vm_pm_info {
uint8_t px_cnt;
uint8_t px_cnt; /* count of all Px states */
struct cpu_px_data px_data[MAX_PSTATE];
uint8_t cx_cnt; /* count of all Cx entries */
struct cpu_cx_data cx_data[MAX_CSTATE];
};
/* VM guest types */