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HV: Minor refactor to get_guest_paging_info

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Add a new parameter csar to get_guest_paging_info. We will save one exec_vmread
in this case.

Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Kaige Fu 2018-06-28 16:15:55 +08:00 committed by lijinxia
parent 83587b7711
commit b67836f722
1 changed files with 4 additions and 4 deletions
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8
hypervisor/arch/x86/guest/instr_emul_wrapper.c
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@ -252,13 +252,13 @@ static int32_t get_vmcs_field(int ident)
}
}
static void get_guest_paging_info(struct vcpu *vcpu, struct emul_cnx *emul_cnx)
static void get_guest_paging_info(struct vcpu *vcpu, struct emul_cnx *emul_cnx,
uint32_t csar)
{
uint32_t cpl, csar;
uint32_t cpl;
ASSERT(emul_cnx != NULL && vcpu != NULL, "Error in input arguments");
csar = exec_vmread(VMX_GUEST_CS_ATTR);
cpl = (csar >> 5) & 3U;
emul_cnx->paging.cr3 =
vcpu->arch_vcpu.contexts[vcpu->arch_vcpu.cur_context].cr3;
@ -307,8 +307,8 @@ int decode_instruction(struct vcpu *vcpu)
return retval;
}
get_guest_paging_info(vcpu, emul_cnx);
csar = exec_vmread(VMX_GUEST_CS_ATTR);
get_guest_paging_info(vcpu, emul_cnx, csar);
cpu_mode = get_vcpu_mode(vcpu);
retval = __decode_instruction(cpu_mode, SEG_DESC_DEF32(csar),