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HV:treewide:Update exec_vmread/exec_vmwrite and exec_vmread64/exec_vmwrite64

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In the hypervisor, VMCS fields include 16-bit fields,
32-bit fields, 64-bit fields and natural-width fields.
In the current implement,  there are exec_vmread/exec_vmwrite
used for accessing 32-bit fields, 64-bit field and
natural-width fields. This usage will confue developer.
So there are many type casting for the return value and
parameters vmread/vmwrite operations.

Since exec_vmread/exec_vmwrite and exec_vmread64/exec_vmwrite64
are the same, update current exec_vmread/exec_vmwrite
implement into exec_vmread64/exec_vmwrite64 implement
and add MACRO define for exec_vmread/exec_vmwrite in
head file;
To access 64-bit fields in VMCS, callers use
exec_vmread64/exec_vmwrite64;
Update related variables type for vmread/vmwrite operations;
Update related caller according to VMCS fields size.

Note:Natural-width fields have 64 bits on processors
that support Intel 64 architecture.To access natural-width
fields in VMCS, callers still use exec_vmread/exec_vmwrite,
keep the current implementation.

V1--V2:
        This is new part of this patch serial to only
        update 64-bit vmread/vmread opertions and related
        caller, for netural width fields, still use exec_vmread
	or exec_vmwrite.
V2-->V3:
	Fix few mistake updations for netural fields in VMCS,
	just keep exec_vmread/exec_vmwrite to access them;
	Fix few mistake updations for 64-bit fields in VMCS.
V3--V4:
	Add "016ll" for 64-bit variable in log function;
	Few updates for coding style;
	Rename lssd32_idx as tr_sel in VMX module.
V4-->V5:
	Use CPU_NATURAL_LAST in the vm_get_register and
	vm_set_register to make condition statement more
	understandable.

Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
This commit is contained in:
Xiangyang Wu
2018-07-16 16:37:28 +08:00
committed by lijinxia
parent 612cdceaca
commit f912953539
7 changed files with 94 additions and 113 deletions
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7
hypervisor/include/arch/x86/vmx.h
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@@ -412,15 +412,16 @@ int exec_vmxon_instr(uint16_t pcpu_id);
* @return the lower 32-bit outside IA-32e mode for 64-bit fields.
* @return full contents for 32-bit fields, with higher 32-bit set to 0.
*/
uint64_t exec_vmread(uint32_t field);
uint16_t exec_vmread16(uint32_t field);
uint32_t exec_vmread32(uint32_t field);
uint64_t exec_vmread64(uint32_t field_full);
void exec_vmwrite(uint32_t field, uint64_t value);
#define exec_vmread exec_vmread64
void exec_vmwrite16(uint32_t field, uint16_t value);
void exec_vmwrite32(uint32_t field, uint32_t value);
void exec_vmwrite64(uint32_t field_full, uint64_t value);
#define exec_vmwrite exec_vmwrite64
int init_vmcs(struct vcpu *vcpu);
int vmx_off(uint16_t pcpu_id);