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HV:treewide:Add exec_vmread32 and exec_vmwrite32 functions

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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, no exec_vmread32/exec_vmwrite32
is for accessing 32-bit fields. So there are many type
casting for the return value and parameters vmread/vmwrite
operations.

Create exec_vmread32 and exec_vmwrite32 functions to
access 32-bit fields in VMCS;
Update related variables type for vmread/vmwrite operations;
Update related caller according to VMCS fields size.

V1--V2:
        This is new part of this patch serial to only
        update 32 bit vmread/vmread opertions and related
        caller.
V2-->V3:
	Update related variables type in data structure
	 for exec_vmread32/exec_vmwrite32.
	Rename temp variable 'low' into 'value' for
	exec_vmread32;
V3-->V4:
	Remove useless type conversion.

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 15:43:25 +08:00
committed by lijinxia
parent 65437960a9
commit 612cdceaca
9 changed files with 113 additions and 97 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
hypervisor/include/arch/x86/guest/vcpu.h
View File

@@ -113,10 +113,10 @@ struct cpu_regs {
};
struct segment {
uint64_t selector;
uint16_t selector;
uint64_t base;
uint64_t limit;
uint64_t attr;
uint32_t limit;
uint32_t attr;
};
struct run_context {
@@ -159,7 +159,7 @@ struct run_context {
uint64_t ia32_pat;
uint64_t vmx_ia32_pat;
uint64_t ia32_efer;
uint64_t ia32_sysenter_cs;
uint32_t ia32_sysenter_cs;
uint64_t ia32_sysenter_esp;
uint64_t ia32_sysenter_eip;
uint64_t ia32_debugctl;

2
hypervisor/include/arch/x86/vmx.h
View File

@@ -415,9 +415,11 @@ int exec_vmxon_instr(uint16_t pcpu_id);
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);
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);
int init_vmcs(struct vcpu *vcpu);