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KVM: VMX: Change vmcs12_{read,write}_any() to receive vmcs12 as parameter 

No functionality change.
This is done as a preparation for VMCS shadowing emulation.

Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Liran Alon 2018-06-23 02:35:02 +03:00 committed by Paolo Bonzini
parent 392b2f25aa
commit e253674227
1 changed files with 11 additions and 10 deletions
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21
arch/x86/kvm/vmx.c
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@ -8159,7 +8159,7 @@ static int handle_vmresume(struct kvm_vcpu *vcpu)
* some of the bits we return here (e.g., on 32-bit guests, only 32 bits of
* 64-bit fields are to be returned).
*/
static inline int vmcs12_read_any(struct kvm_vcpu *vcpu,
static inline int vmcs12_read_any(struct vmcs12 *vmcs12,
unsigned long field, u64 *ret)
{
short offset = vmcs_field_to_offset(field);
@ -8168,7 +8168,7 @@ static inline int vmcs12_read_any(struct kvm_vcpu *vcpu,
if (offset < 0)
return offset;
p = ((char *)(get_vmcs12(vcpu))) + offset;
p = (char *)vmcs12 + offset;
switch (vmcs_field_width(field)) {
case VMCS_FIELD_WIDTH_NATURAL_WIDTH:
@ -8190,10 +8190,10 @@ static inline int vmcs12_read_any(struct kvm_vcpu *vcpu,
}
static inline int vmcs12_write_any(struct kvm_vcpu *vcpu,
static inline int vmcs12_write_any(struct vmcs12 *vmcs12,
unsigned long field, u64 field_value){
short offset = vmcs_field_to_offset(field);
char *p = ((char *) get_vmcs12(vcpu)) + offset;
char *p = (char *)vmcs12 + offset;
if (offset < 0)
return offset;
@ -8246,7 +8246,7 @@ static void copy_shadow_to_vmcs12(struct vcpu_vmx *vmx)
for (i = 0; i < max_fields[q]; i++) {
field = fields[q][i];
field_value = __vmcs_readl(field);
vmcs12_write_any(&vmx->vcpu, field, field_value);
vmcs12_write_any(get_vmcs12(&vmx->vcpu), field, field_value);
}
/*
* Skip the VM-exit information fields if they are read-only.
@ -8281,7 +8281,7 @@ static void copy_vmcs12_to_shadow(struct vcpu_vmx *vmx)
for (q = 0; q < ARRAY_SIZE(fields); q++) {
for (i = 0; i < max_fields[q]; i++) {
field = fields[q][i];
vmcs12_read_any(&vmx->vcpu, field, &field_value);
vmcs12_read_any(get_vmcs12(&vmx->vcpu), field, &field_value);
__vmcs_writel(field, field_value);
}
}
@ -8321,7 +8321,7 @@ static int handle_vmread(struct kvm_vcpu *vcpu)
/* Decode instruction info and find the field to read */
field = kvm_register_readl(vcpu, (((vmx_instruction_info) >> 28) & 0xf));
/* Read the field, zero-extended to a u64 field_value */
if (vmcs12_read_any(vcpu, field, &field_value) < 0) {
if (vmcs12_read_any(get_vmcs12(vcpu), field, &field_value) < 0) {
nested_vmx_failValid(vcpu, VMXERR_UNSUPPORTED_VMCS_COMPONENT);
return kvm_skip_emulated_instruction(vcpu);
}
@ -8397,7 +8397,7 @@ static int handle_vmwrite(struct kvm_vcpu *vcpu)
return kvm_skip_emulated_instruction(vcpu);
}
if (vmcs12_write_any(vcpu, field, field_value) < 0) {
if (vmcs12_write_any(get_vmcs12(vcpu), field, field_value) < 0) {
nested_vmx_failValid(vcpu, VMXERR_UNSUPPORTED_VMCS_COMPONENT);
return kvm_skip_emulated_instruction(vcpu);
}
@ -10971,11 +10971,12 @@ static int nested_vmx_check_msr_switch(struct kvm_vcpu *vcpu,
unsigned long count_field,
unsigned long addr_field)
{
struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
int maxphyaddr;
u64 count, addr;
if (vmcs12_read_any(vcpu, count_field, &count) ||
vmcs12_read_any(vcpu, addr_field, &addr)) {
if (vmcs12_read_any(vmcs12, count_field, &count) ||
vmcs12_read_any(vmcs12, addr_field, &addr)) {
WARN_ON(1);
return -EINVAL;
}