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hv: mmu: add some API for guest page mode check

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add is_long_mode to check whether the processor is operating in IA-32e mode
add is_paging_enabled to check whether paging is enabled
add is_pae to check whether physical address extension is enabled.

Tracked-On: #1379
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
This commit is contained in:
Li, Fei1
2018-09-29 14:08:51 +08:00
committed by wenlingz
parent 9fd8781242
commit 2b24b3780f
4 changed files with 20 additions and 5 deletions
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15
hypervisor/include/arch/x86/guest/vcpu.h
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@@ -287,6 +287,21 @@ uint64_t vcpu_get_pat_ext(struct vcpu *vcpu);
void vcpu_set_pat_ext(struct vcpu *vcpu, uint64_t val);
void set_vcpu_regs(struct vcpu *vcpu, struct acrn_vcpu_regs *vcpu_regs);
static inline bool is_long_mode(struct vcpu *vcpu)
{
return (vcpu_get_efer(vcpu) & MSR_IA32_EFER_LMA_BIT) != 0UL;
}
static inline bool is_paging_enabled(struct vcpu *vcpu)
{
return (vcpu_get_cr0(vcpu) & CR0_PG) != 0UL;
}
static inline bool is_pae(struct vcpu *vcpu)
{
return (vcpu_get_cr4(vcpu) & CR4_PAE) != 0UL;
}
struct vcpu* get_ever_run_vcpu(uint16_t pcpu_id);
int create_vcpu(uint16_t pcpu_id, struct vm *vm, struct vcpu **rtn_vcpu_handle);
int run_vcpu(struct vcpu *vcpu);