[PATCH v6 46/60] i386/cgs: Rename *mask_cpuid_features() to *adjust_cpuid_features()

Xiaoyao Li
2024-11-05T06:39:39Z

Because for TDX case, there are also fixed-1 bits that enfored by TDX
module.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
target/i386/confidential-guest.h | 20 ++++++++++----------
target/i386/kvm/kvm.c | 2 +-
target/i386/sev.c | 4 ++--
3 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/target/i386/confidential-guest.h b/target/i386/confidential-guest.h
index 4b7ea91023dc..2dde29889c23 100644
--- a/target/i386/confidential-guest.h
+++ b/target/i386/confidential-guest.h
@@ -41,8 +41,8 @@ struct X86ConfidentialGuestClass {
int (*kvm_type)(X86ConfidentialGuest *cg);
void (*cpu_instance_init)(X86ConfidentialGuest *cg, CPUState *cpu);
void (*cpu_realizefn)(X86ConfidentialGuest *cg, CPUState *cpu, Error **errp);
- uint32_t (*mask_cpuid_features)(X86ConfidentialGuest *cg, uint32_t feature, uint32_t index,
- int reg, uint32_t value);
+ uint32_t (*adjust_cpuid_features)(X86ConfidentialGuest *cg, uint32_t feature,
+ uint32_t index, int reg, uint32_t value);
};

/**
@@ -83,21 +83,21 @@ static inline void x86_confidenetial_guest_cpu_realizefn(X86ConfidentialGuest *c
}

/**
- * x86_confidential_guest_mask_cpuid_features:
+ * x86_confidential_guest_adjust_cpuid_features:
*
- * Removes unsupported features from a confidential guest's CPUID values, returns
- * the value with the bits removed. The bits removed should be those that KVM
- * provides independent of host-supported CPUID features, but are not supported by
- * the confidential computing firmware.
+ * Adjust the supported features from a confidential guest's CPUID values,
+ * returns the adjusted value. There are bits being removed that are not
+ * supported by the confidential computing firmware or bits being added that
+ * are forcibly exposed to guest by the confidential computing firmware.
*/
-static inline int x86_confidential_guest_mask_cpuid_features(X86ConfidentialGuest *cg,
+static inline int x86_confidential_guest_adjust_cpuid_features(X86ConfidentialGuest *cg,
uint32_t feature, uint32_t index,
int reg, uint32_t value)
{
X86ConfidentialGuestClass *klass = X86_CONFIDENTIAL_GUEST_GET_CLASS(cg);

- if (klass->mask_cpuid_features) {
- return klass->mask_cpuid_features(cg, feature, index, reg, value);
+ if (klass->adjust_cpuid_features) {
+ return klass->adjust_cpuid_features(cg, feature, index, reg, value);
} else {
return value;
}
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index e47aa32233e6..f067961fba43 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -576,7 +576,7 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
}

if (current_machine->cgs) {
- ret = x86_confidential_guest_mask_cpuid_features(
+ ret = x86_confidential_guest_adjust_cpuid_features(
X86_CONFIDENTIAL_GUEST(current_machine->cgs),
function, index, reg, ret);
}
diff --git a/target/i386/sev.c b/target/i386/sev.c
index 1a4eb1ada624..4e6582c6a666 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -946,7 +946,7 @@ out:
}

static uint32_t
-sev_snp_mask_cpuid_features(X86ConfidentialGuest *cg, uint32_t feature, uint32_t index,
+sev_snp_adjust_cpuid_features(X86ConfidentialGuest *cg, uint32_t feature, uint32_t index,
int reg, uint32_t value)
{
switch (feature) {
@@ -2404,7 +2404,7 @@ sev_snp_guest_class_init(ObjectClass *oc, void *data)
klass->launch_finish = sev_snp_launch_finish;
klass->launch_update_data = sev_snp_launch_update_data;
klass->kvm_init = sev_snp_kvm_init;
- x86_klass->mask_cpuid_features = sev_snp_mask_cpuid_features;
+ x86_klass->adjust_cpuid_features = sev_snp_adjust_cpuid_features;
x86_klass->kvm_type = sev_snp_kvm_type;

object_class_property_add(oc, "policy", "uint64",
--
2.34.1