[PATCH 2/2] KVM/arm64: Print emulated register table name when it is unsorted

[Alexandru Elisei]

When a sysreg table entry is out-of-order, KVM attempts to print the
address of the table:

[    0.143881] kvm [1]: sys_reg table (____ptrval____) out of order (0)

Printing the name of the table instead of a pointer is more helpful in this
case:

[    0.143881] kvm [1]: sys_reg table sys_reg_descs out of order (0)

Signed-off-by: Alexandru Elisei <alexandru.elisei at arm.com>
---
 arch/arm64/kvm/sys_regs.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 57302048afd0..7b62a2daf056 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2188,18 +2188,18 @@ static const struct sys_reg_desc cp15_64_regs[] = {
 };
 
 static bool check_sysreg_table(const struct sys_reg_desc *table, unsigned int n,
-			       bool is_32)
+			       const char *table_name, bool is_32)
 {
 	unsigned int i;
 
 	for (i = 0; i < n; i++) {
 		if (!is_32 && table[i].reg && !table[i].reset) {
-			kvm_err("sys_reg table %p entry %d lacks reset\n", table, i);
+			kvm_err("sys_reg table %s entry %d lacks reset\n", table_name, i);
 			return false;
 		}
 
 		if (i && cmp_sys_reg(&table[i-1], &table[i]) >= 0) {
-			kvm_err("sys_reg table %p out of order (%d)\n", table, i - 1);
+			kvm_err("sys_reg table %s out of order (%d)\n", table_name, i - 1);
 			return false;
 		}
 	}
@@ -2866,12 +2866,14 @@ int kvm_sys_reg_table_init(void)
 	struct sys_reg_desc clidr;
 
 	/* Make sure tables are unique and in order. */
-	valid &= check_sysreg_table(sys_reg_descs, ARRAY_SIZE(sys_reg_descs), false);
-	valid &= check_sysreg_table(cp14_regs, ARRAY_SIZE(cp14_regs), true);
-	valid &= check_sysreg_table(cp14_64_regs, ARRAY_SIZE(cp14_64_regs), true);
-	valid &= check_sysreg_table(cp15_regs, ARRAY_SIZE(cp15_regs), true);
-	valid &= check_sysreg_table(cp15_64_regs, ARRAY_SIZE(cp15_64_regs), true);
-	valid &= check_sysreg_table(invariant_sys_regs, ARRAY_SIZE(invariant_sys_regs), false);
+	valid &= check_sysreg_table(sys_reg_descs, ARRAY_SIZE(sys_reg_descs),
+				    "sys_reg_descs", false);
+	valid &= check_sysreg_table(cp14_regs, ARRAY_SIZE(cp14_regs), "cp14_regs", true);
+	valid &= check_sysreg_table(cp14_64_regs, ARRAY_SIZE(cp14_64_regs), "cp14_64_regs", true);
+	valid &= check_sysreg_table(cp15_regs, ARRAY_SIZE(cp15_regs), "cp15_regs", true);
+	valid &= check_sysreg_table(cp15_64_regs, ARRAY_SIZE(cp15_64_regs), "cp15_64_regs", true);
+	valid &= check_sysreg_table(invariant_sys_regs, ARRAY_SIZE(invariant_sys_regs),
+				    "invariant_sys_regs", false);
 
 	if (!valid)
 		return -EINVAL;
-- 
2.36.0