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Diffstat (limited to 'arch/arm64/kvm/sys_regs.c')
-rw-r--r--arch/arm64/kvm/sys_regs.c65
1 files changed, 40 insertions, 25 deletions
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 0c073f3ca122..2799e7e9915a 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -426,14 +426,14 @@ static bool trap_bvr(struct kvm_vcpu *vcpu,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
- u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg];
+ u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->CRm];
if (p->is_write)
reg_to_dbg(vcpu, p, dbg_reg);
else
dbg_to_reg(vcpu, p, dbg_reg);
- trace_trap_reg(__func__, rd->reg, p->is_write, *dbg_reg);
+ trace_trap_reg(__func__, rd->CRm, p->is_write, *dbg_reg);
return true;
}
@@ -441,7 +441,7 @@ static bool trap_bvr(struct kvm_vcpu *vcpu,
static int set_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
const struct kvm_one_reg *reg, void __user *uaddr)
{
- __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg];
+ __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->CRm];
if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0)
return -EFAULT;
@@ -451,7 +451,7 @@ static int set_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
static int get_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
const struct kvm_one_reg *reg, void __user *uaddr)
{
- __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg];
+ __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->CRm];
if (copy_to_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0)
return -EFAULT;
@@ -461,21 +461,21 @@ static int get_bvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
static void reset_bvr(struct kvm_vcpu *vcpu,
const struct sys_reg_desc *rd)
{
- vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg] = rd->val;
+ vcpu->arch.vcpu_debug_state.dbg_bvr[rd->CRm] = rd->val;
}
static bool trap_bcr(struct kvm_vcpu *vcpu,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
- u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg];
+ u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->CRm];
if (p->is_write)
reg_to_dbg(vcpu, p, dbg_reg);
else
dbg_to_reg(vcpu, p, dbg_reg);
- trace_trap_reg(__func__, rd->reg, p->is_write, *dbg_reg);
+ trace_trap_reg(__func__, rd->CRm, p->is_write, *dbg_reg);
return true;
}
@@ -483,7 +483,7 @@ static bool trap_bcr(struct kvm_vcpu *vcpu,
static int set_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
const struct kvm_one_reg *reg, void __user *uaddr)
{
- __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg];
+ __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->CRm];
if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0)
return -EFAULT;
@@ -494,7 +494,7 @@ static int set_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
static int get_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
const struct kvm_one_reg *reg, void __user *uaddr)
{
- __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg];
+ __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->CRm];
if (copy_to_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0)
return -EFAULT;
@@ -504,22 +504,22 @@ static int get_bcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
static void reset_bcr(struct kvm_vcpu *vcpu,
const struct sys_reg_desc *rd)
{
- vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg] = rd->val;
+ vcpu->arch.vcpu_debug_state.dbg_bcr[rd->CRm] = rd->val;
}
static bool trap_wvr(struct kvm_vcpu *vcpu,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
- u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg];
+ u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm];
if (p->is_write)
reg_to_dbg(vcpu, p, dbg_reg);
else
dbg_to_reg(vcpu, p, dbg_reg);
- trace_trap_reg(__func__, rd->reg, p->is_write,
- vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg]);
+ trace_trap_reg(__func__, rd->CRm, p->is_write,
+ vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm]);
return true;
}
@@ -527,7 +527,7 @@ static bool trap_wvr(struct kvm_vcpu *vcpu,
static int set_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
const struct kvm_one_reg *reg, void __user *uaddr)
{
- __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg];
+ __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm];
if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0)
return -EFAULT;
@@ -537,7 +537,7 @@ static int set_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
static int get_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
const struct kvm_one_reg *reg, void __user *uaddr)
{
- __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg];
+ __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm];
if (copy_to_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0)
return -EFAULT;
@@ -547,21 +547,21 @@ static int get_wvr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
static void reset_wvr(struct kvm_vcpu *vcpu,
const struct sys_reg_desc *rd)
{
- vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg] = rd->val;
+ vcpu->arch.vcpu_debug_state.dbg_wvr[rd->CRm] = rd->val;
}
static bool trap_wcr(struct kvm_vcpu *vcpu,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
- u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg];
+ u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->CRm];
if (p->is_write)
reg_to_dbg(vcpu, p, dbg_reg);
else
dbg_to_reg(vcpu, p, dbg_reg);
- trace_trap_reg(__func__, rd->reg, p->is_write, *dbg_reg);
+ trace_trap_reg(__func__, rd->CRm, p->is_write, *dbg_reg);
return true;
}
@@ -569,7 +569,7 @@ static bool trap_wcr(struct kvm_vcpu *vcpu,
static int set_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
const struct kvm_one_reg *reg, void __user *uaddr)
{
- __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg];
+ __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->CRm];
if (copy_from_user(r, uaddr, KVM_REG_SIZE(reg->id)) != 0)
return -EFAULT;
@@ -579,7 +579,7 @@ static int set_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
static int get_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
const struct kvm_one_reg *reg, void __user *uaddr)
{
- __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg];
+ __u64 *r = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->CRm];
if (copy_to_user(uaddr, r, KVM_REG_SIZE(reg->id)) != 0)
return -EFAULT;
@@ -589,7 +589,7 @@ static int get_wcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
static void reset_wcr(struct kvm_vcpu *vcpu,
const struct sys_reg_desc *rd)
{
- vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg] = rd->val;
+ vcpu->arch.vcpu_debug_state.dbg_wcr[rd->CRm] = rd->val;
}
static void reset_amair_el1(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r)
@@ -619,6 +619,10 @@ static void reset_pmcr(struct kvm_vcpu *vcpu, const struct sys_reg_desc *r)
{
u64 pmcr, val;
+ /* No PMU available, PMCR_EL0 may UNDEF... */
+ if (!kvm_arm_support_pmu_v3())
+ return;
+
pmcr = read_sysreg(pmcr_el0);
/*
* Writable bits of PMCR_EL0 (ARMV8_PMU_PMCR_MASK) are reset to UNKNOWN
@@ -1045,6 +1049,16 @@ static u64 read_id_reg(struct sys_reg_desc const *r, bool raz)
kvm_debug("LORegions unsupported for guests, suppressing\n");
val &= ~(0xfUL << ID_AA64MMFR1_LOR_SHIFT);
+ } else if (id == SYS_ID_AA64DFR0_EL1) {
+ /* Limit guests to PMUv3 for ARMv8.1 */
+ val = cpuid_feature_cap_perfmon_field(val,
+ ID_AA64DFR0_PMUVER_SHIFT,
+ ID_AA64DFR0_PMUVER_8_1);
+ } else if (id == SYS_ID_DFR0_EL1) {
+ /* Limit guests to PMUv3 for ARMv8.1 */
+ val = cpuid_feature_cap_perfmon_field(val,
+ ID_DFR0_PERFMON_SHIFT,
+ ID_DFR0_PERFMON_8_1);
}
return val;
@@ -1285,7 +1299,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
/* CRm=6 */
ID_SANITISED(ID_AA64ISAR0_EL1),
ID_SANITISED(ID_AA64ISAR1_EL1),
- ID_UNALLOCATED(6,2),
+ ID_SANITISED(ID_AA64ISAR2_EL1),
ID_UNALLOCATED(6,3),
ID_UNALLOCATED(6,4),
ID_UNALLOCATED(6,5),
@@ -1555,9 +1569,9 @@ static const struct sys_reg_desc cp14_regs[] = {
{ Op1( 0), CRn( 0), CRm( 1), Op2( 0), trap_raz_wi },
DBG_BCR_BVR_WCR_WVR(1),
/* DBGDCCINT */
- { Op1( 0), CRn( 0), CRm( 2), Op2( 0), trap_debug32 },
+ { Op1( 0), CRn( 0), CRm( 2), Op2( 0), trap_debug32, NULL, cp14_DBGDCCINT },
/* DBGDSCRext */
- { Op1( 0), CRn( 0), CRm( 2), Op2( 2), trap_debug32 },
+ { Op1( 0), CRn( 0), CRm( 2), Op2( 2), trap_debug32, NULL, cp14_DBGDSCRext },
DBG_BCR_BVR_WCR_WVR(2),
/* DBGDTR[RT]Xint */
{ Op1( 0), CRn( 0), CRm( 3), Op2( 0), trap_raz_wi },
@@ -1572,7 +1586,7 @@ static const struct sys_reg_desc cp14_regs[] = {
{ Op1( 0), CRn( 0), CRm( 6), Op2( 2), trap_raz_wi },
DBG_BCR_BVR_WCR_WVR(6),
/* DBGVCR */
- { Op1( 0), CRn( 0), CRm( 7), Op2( 0), trap_debug32 },
+ { Op1( 0), CRn( 0), CRm( 7), Op2( 0), trap_debug32, NULL, cp14_DBGVCR },
DBG_BCR_BVR_WCR_WVR(7),
DBG_BCR_BVR_WCR_WVR(8),
DBG_BCR_BVR_WCR_WVR(9),
@@ -1661,6 +1675,7 @@ static const struct sys_reg_desc cp15_regs[] = {
{ Op1( 0), CRn( 2), CRm( 0), Op2( 0), access_vm_reg, NULL, c2_TTBR0 },
{ Op1( 0), CRn( 2), CRm( 0), Op2( 1), access_vm_reg, NULL, c2_TTBR1 },
{ Op1( 0), CRn( 2), CRm( 0), Op2( 2), access_vm_reg, NULL, c2_TTBCR },
+ { Op1( 0), CRn( 2), CRm( 0), Op2( 3), access_vm_reg, NULL, c2_TTBCR2 },
{ Op1( 0), CRn( 3), CRm( 0), Op2( 0), access_vm_reg, NULL, c3_DACR },
{ Op1( 0), CRn( 5), CRm( 0), Op2( 0), access_vm_reg, NULL, c5_DFSR },
{ Op1( 0), CRn( 5), CRm( 0), Op2( 1), access_vm_reg, NULL, c5_IFSR },
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-23 04:47:18 +0000