[PATCH v1 12/26] KVM: arm64: Add PVM_ prefix to avoid name collisions

From: Steffen Eiden

Date: Fri May 29 2026 - 12:32:42 EST


Rename ID_UNALLOCATED to PVM_ID_UNALLOCATED and read_id_reg to
pvm_read_id_reg to prevent future name collisions with other subsystems.
While at it, fix whitespace issues in the macro invocations

Signed-off-by: Steffen Eiden <seiden@xxxxxxxxxxxxx>
---
arch/arm64/kvm/hyp/nvhe/sys_regs.c | 48 +++++++++++++++---------------
1 file changed, 24 insertions(+), 24 deletions(-)

diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index e8d773d38905..08b14053568b 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -282,8 +282,8 @@ static void inject_undef64(struct kvm_vcpu *vcpu)
inject_sync64(vcpu, (ESR_ELx_EC_UNKNOWN << ESR_ELx_EC_SHIFT));
}

-static u64 read_id_reg(const struct kvm_vcpu *vcpu,
- struct sys_reg_desc const *r)
+static u64 pvm_read_id_reg(const struct kvm_vcpu *vcpu,
+ struct sys_reg_desc const *r)
{
struct kvm *kvm = vcpu->kvm;
u32 reg = reg_to_encoding(r);
@@ -341,7 +341,7 @@ static bool pvm_access_id_aarch64(struct kvm_vcpu *vcpu,
return false;
}

- p->regval = read_id_reg(vcpu, r);
+ p->regval = pvm_read_id_reg(vcpu, r);
return true;
}

@@ -379,7 +379,7 @@ static bool pvm_idst_access(struct kvm_vcpu *vcpu,
* register with encoding Op0=3, Op1=0, CRn=0, CRm=crm, Op2=op2
* (1 <= crm < 8, 0 <= Op2 < 8).
*/
-#define ID_UNALLOCATED(crm, op2) { \
+#define PVM_ID_UNALLOCATED(crm, op2) { \
Op0(3), Op1(0), CRn(0), CRm(crm), Op2(op2), \
.access = pvm_access_id_aarch64, \
}
@@ -438,46 +438,46 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
AARCH32(SYS_MVFR0_EL1),
AARCH32(SYS_MVFR1_EL1),
AARCH32(SYS_MVFR2_EL1),
- ID_UNALLOCATED(3,3),
+ PVM_ID_UNALLOCATED(3, 3),
AARCH32(SYS_ID_PFR2_EL1),
AARCH32(SYS_ID_DFR1_EL1),
AARCH32(SYS_ID_MMFR5_EL1),
- ID_UNALLOCATED(3,7),
+ PVM_ID_UNALLOCATED(3, 7),

/* AArch64 ID registers */
/* CRm=4 */
AARCH64(SYS_ID_AA64PFR0_EL1),
AARCH64(SYS_ID_AA64PFR1_EL1),
AARCH64(SYS_ID_AA64PFR2_EL1),
- ID_UNALLOCATED(4,3),
+ PVM_ID_UNALLOCATED(4, 3),
AARCH64(SYS_ID_AA64ZFR0_EL1),
- ID_UNALLOCATED(4,5),
- ID_UNALLOCATED(4,6),
- ID_UNALLOCATED(4,7),
+ PVM_ID_UNALLOCATED(4, 5),
+ PVM_ID_UNALLOCATED(4, 6),
+ PVM_ID_UNALLOCATED(4, 7),
AARCH64(SYS_ID_AA64DFR0_EL1),
AARCH64(SYS_ID_AA64DFR1_EL1),
- ID_UNALLOCATED(5,2),
- ID_UNALLOCATED(5,3),
+ PVM_ID_UNALLOCATED(5, 2),
+ PVM_ID_UNALLOCATED(5, 3),
AARCH64(SYS_ID_AA64AFR0_EL1),
AARCH64(SYS_ID_AA64AFR1_EL1),
- ID_UNALLOCATED(5,6),
- ID_UNALLOCATED(5,7),
+ PVM_ID_UNALLOCATED(5, 6),
+ PVM_ID_UNALLOCATED(5, 7),
AARCH64(SYS_ID_AA64ISAR0_EL1),
AARCH64(SYS_ID_AA64ISAR1_EL1),
AARCH64(SYS_ID_AA64ISAR2_EL1),
- ID_UNALLOCATED(6,3),
- ID_UNALLOCATED(6,4),
- ID_UNALLOCATED(6,5),
- ID_UNALLOCATED(6,6),
- ID_UNALLOCATED(6,7),
+ PVM_ID_UNALLOCATED(6, 3),
+ PVM_ID_UNALLOCATED(6, 4),
+ PVM_ID_UNALLOCATED(6, 5),
+ PVM_ID_UNALLOCATED(6, 6),
+ PVM_ID_UNALLOCATED(6, 7),
AARCH64(SYS_ID_AA64MMFR0_EL1),
AARCH64(SYS_ID_AA64MMFR1_EL1),
AARCH64(SYS_ID_AA64MMFR2_EL1),
- ID_UNALLOCATED(7,3),
- ID_UNALLOCATED(7,4),
- ID_UNALLOCATED(7,5),
- ID_UNALLOCATED(7,6),
- ID_UNALLOCATED(7,7),
+ PVM_ID_UNALLOCATED(7, 3),
+ PVM_ID_UNALLOCATED(7, 4),
+ PVM_ID_UNALLOCATED(7, 5),
+ PVM_ID_UNALLOCATED(7, 6),
+ PVM_ID_UNALLOCATED(7, 7),

/* Scalable Vector Registers are restricted. */

--
2.53.0