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HV: Set vm state as with VM_POWERING_OFF when RTVM poweroff by itself

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We set the vm state as VM_POWERING_OFF when RTVM is trying to poweroff by itself.
We will check it when trying to pause vCPUs of RTVM. Only if vm state equal to
VM_POWERING_OFF, we take action to pause the vCPUs of RTVM. Otherwise, we will
reject the pause request.

Tracked-On: #2865
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
This commit is contained in:
Kaige Fu 2019-03-24 10:00:37 +00:00 committed by ACRN System Integration
parent 83d11bbff8
commit 8ad5adced7
3 changed files with 12 additions and 3 deletions
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12
hypervisor/arch/x86/guest/pm.c
View File

@ -220,10 +220,16 @@ static bool rt_vm_pm1a_io_read(__unused struct acrn_vm *vm, __unused struct acrn
return false;
}
static bool rt_vm_pm1a_io_write(__unused struct acrn_vm *vm, __unused uint16_t addr,
__unused size_t width, __unused uint32_t v)
static bool rt_vm_pm1a_io_write(struct acrn_vm *vm, uint16_t addr, size_t width, uint32_t v)
{
/* TODO: Check if the vm is trying to powering off itself */
if ((addr != RT_VM_PM1A_CNT_ADDR) || (width != 2U)) {
pr_dbg("Invalid address (0x%x) or width (0x%x)", addr, width);
} else {
if (((v & RT_VM_PM1A_SLP_EN) && (((v & RT_VM_PM1A_SLP_TYP) >> 10U) == 5U)) != 0U) {
vm->state = VM_POWERING_OFF;
}
}
return false;
}

1
hypervisor/include/arch/x86/guest/vm.h
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@ -88,6 +88,7 @@ enum vm_state {
VM_STATE_INVALID = 0,
VM_CREATED, /* VM created / awaiting start (boot) */
VM_STARTED, /* VM started (booted) */
VM_POWERING_OFF, /* RTVM only, it is trying to poweroff by itself */
VM_PAUSED, /* VM paused */
};

2
hypervisor/include/public/acrn_common.h
View File

@ -56,6 +56,8 @@
/* TODO: We may need to get this addr from guest ACPI instead of hardcode here */
#define RT_VM_PM1A_CNT_ADDR 0x404U
#define RT_VM_PM1A_SLP_TYP 0x1c00U
#define RT_VM_PM1A_SLP_EN 0x2000U
/**
* @brief Hypercall