From: Gavin Shan <gshan@xxxxxxxxxx>
kvm/arm32 isn't supported since commit 541ad0150ca4 ("arm: Remove
32bit KVM host support"). So HSR isn't meaningful since then. This
renames HSR to ESR accordingly. This shouldn't cause any functional
changes:
* Rename kvm_vcpu_get_hsr() to kvm_vcpu_get_esr() to make the
function names self-explanatory.
* Rename variables from @hsr to @esr to make them self-explanatory.
Note that the renaming on uapi and tracepoint will cause ABI changes,
which we should avoid. Specificly, there are 4 related source files
in this regard:
* arch/arm64/include/uapi/asm/kvm.h (struct kvm_debug_exit_arch::hsr)
* arch/arm64/kvm/handle_exit.c (struct kvm_debug_exit_arch::hsr)
* arch/arm64/kvm/trace_arm.h (tracepoints)
* arch/arm64/kvm/trace_handle_exit.h (tracepoints)
Signed-off-by: Gavin Shan <gshan@xxxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Acked-by: Andrew Scull <ascull@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20200630015705.103366-1-gshan@xxxxxxxxxx
---
arch/arm64/include/asm/kvm_emulate.h | 34 ++++++++++++++--------------
arch/arm64/kvm/handle_exit.c | 32 +++++++++++++-------------
arch/arm64/kvm/hyp/aarch32.c | 2 +-
arch/arm64/kvm/hyp/switch.c | 14 ++++++------
arch/arm64/kvm/hyp/vgic-v3-sr.c | 4 ++--
arch/arm64/kvm/mmu.c | 6 ++---
arch/arm64/kvm/sys_regs.c | 28 +++++++++++------------
7 files changed, 60 insertions(+), 60 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index 4d0f8ea600ba..c9ba0df47f7d 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -259,14 +259,14 @@ static inline bool vcpu_mode_priv(const struct kvm_vcpu *vcpu)
return mode != PSR_MODE_EL0t;
}
-static __always_inline u32 kvm_vcpu_get_hsr(const struct kvm_vcpu *vcpu)
+static __always_inline u32 kvm_vcpu_get_esr(const struct kvm_vcpu *vcpu)
{
return vcpu->arch.fault.esr_el2;
}
static __always_inline int kvm_vcpu_get_condition(const struct kvm_vcpu *vcpu)
{
- u32 esr = kvm_vcpu_get_hsr(vcpu);
+ u32 esr = kvm_vcpu_get_esr(vcpu);
if (esr & ESR_ELx_CV)
return (esr & ESR_ELx_COND_MASK) >> ESR_ELx_COND_SHIFT;
@@ -291,64 +291,64 @@ static inline u64 kvm_vcpu_get_disr(const struct kvm_vcpu *vcpu)
static inline u32 kvm_vcpu_hvc_get_imm(const struct kvm_vcpu *vcpu)
{
- return kvm_vcpu_get_hsr(vcpu) & ESR_ELx_xVC_IMM_MASK;
+ return kvm_vcpu_get_esr(vcpu) & ESR_ELx_xVC_IMM_MASK;
}
static __always_inline bool kvm_vcpu_dabt_isvalid(const struct kvm_vcpu *vcpu)
{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_ISV);
+ return !!(kvm_vcpu_get_esr(vcpu) & ESR_ELx_ISV);
}
static inline unsigned long kvm_vcpu_dabt_iss_nisv_sanitized(const struct kvm_vcpu *vcpu)
{
- return kvm_vcpu_get_hsr(vcpu) & (ESR_ELx_CM | ESR_ELx_WNR | ESR_ELx_FSC);
+ return kvm_vcpu_get_esr(vcpu) & (ESR_ELx_CM | ESR_ELx_WNR | ESR_ELx_FSC);
}
static inline bool kvm_vcpu_dabt_issext(const struct kvm_vcpu *vcpu)
{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SSE);
+ return !!(kvm_vcpu_get_esr(vcpu) & ESR_ELx_SSE);
}
static inline bool kvm_vcpu_dabt_issf(const struct kvm_vcpu *vcpu)
{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SF);
+ return !!(kvm_vcpu_get_esr(vcpu) & ESR_ELx_SF);
}
static __always_inline int kvm_vcpu_dabt_get_rd(const struct kvm_vcpu *vcpu)
{
- return (kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SRT_MASK) >> ESR_ELx_SRT_SHIFT;
+ return (kvm_vcpu_get_esr(vcpu) & ESR_ELx_SRT_MASK) >> ESR_ELx_SRT_SHIFT;
}
static __always_inline bool kvm_vcpu_dabt_iss1tw(const struct kvm_vcpu *vcpu)
{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_S1PTW);
+ return !!(kvm_vcpu_get_esr(vcpu) & ESR_ELx_S1PTW);
}
static __always_inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu)
{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WNR) ||
+ return !!(kvm_vcpu_get_esr(vcpu) & ESR_ELx_WNR) ||
kvm_vcpu_dabt_iss1tw(vcpu); /* AF/DBM update */
}
static inline bool kvm_vcpu_dabt_is_cm(const struct kvm_vcpu *vcpu)
{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_CM);
+ return !!(kvm_vcpu_get_esr(vcpu) & ESR_ELx_CM);
}
static __always_inline unsigned int kvm_vcpu_dabt_get_as(const struct kvm_vcpu *vcpu)
{
- return 1 << ((kvm_vcpu_get_hsr(vcpu) & ESR_ELx_SAS) >> ESR_ELx_SAS_SHIFT);
+ return 1 << ((kvm_vcpu_get_esr(vcpu) & ESR_ELx_SAS) >> ESR_ELx_SAS_SHIFT);
}
/* This one is not specific to Data Abort */
static __always_inline bool kvm_vcpu_trap_il_is32bit(const struct kvm_vcpu *vcpu)
{
- return !!(kvm_vcpu_get_hsr(vcpu) & ESR_ELx_IL);
+ return !!(kvm_vcpu_get_esr(vcpu) & ESR_ELx_IL);
}
static __always_inline u8 kvm_vcpu_trap_get_class(const struct kvm_vcpu *vcpu)
{
- return ESR_ELx_EC(kvm_vcpu_get_hsr(vcpu));
+ return ESR_ELx_EC(kvm_vcpu_get_esr(vcpu));
}
static inline bool kvm_vcpu_trap_is_iabt(const struct kvm_vcpu *vcpu)
@@ -358,12 +358,12 @@ static inline bool kvm_vcpu_trap_is_iabt(const struct kvm_vcpu *vcpu)
static __always_inline u8 kvm_vcpu_trap_get_fault(const struct kvm_vcpu *vcpu)
{
- return kvm_vcpu_get_hsr(vcpu) & ESR_ELx_FSC;
+ return kvm_vcpu_get_esr(vcpu) & ESR_ELx_FSC;
}
static __always_inline u8 kvm_vcpu_trap_get_fault_type(const struct kvm_vcpu *vcpu)
{
- return kvm_vcpu_get_hsr(vcpu) & ESR_ELx_FSC_TYPE;
+ return kvm_vcpu_get_esr(vcpu) & ESR_ELx_FSC_TYPE;
}
static __always_inline bool kvm_vcpu_dabt_isextabt(const struct kvm_vcpu *vcpu)
@@ -387,7 +387,7 @@ static __always_inline bool kvm_vcpu_dabt_isextabt(const struct kvm_vcpu *vcpu)
static __always_inline int kvm_vcpu_sys_get_rt(struct kvm_vcpu *vcpu)
{
- u32 esr = kvm_vcpu_get_hsr(vcpu);
+ u32 esr = kvm_vcpu_get_esr(vcpu);
return ESR_ELx_SYS64_ISS_RT(esr);
}
diff --git a/arch/arm64/kvm/handle_exit.c b/arch/arm64/kvm/handle_exit.c
index 5a02d4c90559..98ab33139982 100644
--- a/arch/arm64/kvm/handle_exit.c
+++ b/arch/arm64/kvm/handle_exit.c
@@ -89,7 +89,7 @@ static int handle_no_fpsimd(struct kvm_vcpu *vcpu, struct kvm_run *run)
*/
static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
- if (kvm_vcpu_get_hsr(vcpu) & ESR_ELx_WFx_ISS_WFE) {
+ if (kvm_vcpu_get_esr(vcpu) & ESR_ELx_WFx_ISS_WFE) {
trace_kvm_wfx_arm64(*vcpu_pc(vcpu), true);
vcpu->stat.wfe_exit_stat++;
kvm_vcpu_on_spin(vcpu, vcpu_mode_priv(vcpu));
@@ -119,13 +119,13 @@ static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
*/
static int kvm_handle_guest_debug(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
- u32 hsr = kvm_vcpu_get_hsr(vcpu);
+ u32 esr = kvm_vcpu_get_esr(vcpu);
int ret = 0;
run->exit_reason = KVM_EXIT_DEBUG;
- run->debug.arch.hsr = hsr;
+ run->debug.arch.hsr = esr;
- switch (ESR_ELx_EC(hsr)) {
+ switch (ESR_ELx_EC(esr)) {
case ESR_ELx_EC_WATCHPT_LOW:
run->debug.arch.far = vcpu->arch.fault.far_el2;
/* fall through */
@@ -135,8 +135,8 @@ static int kvm_handle_guest_debug(struct kvm_vcpu *vcpu, struct kvm_run *run)
case ESR_ELx_EC_BRK64:
break;
default:
- kvm_err("%s: un-handled case hsr: %#08x\n",
- __func__, (unsigned int) hsr);
+ kvm_err("%s: un-handled case esr: %#08x\n",
+ __func__, (unsigned int) esr);
ret = -1;
break;
}
@@ -146,10 +146,10 @@ static int kvm_handle_guest_debug(struct kvm_vcpu *vcpu, struct kvm_run *run)
static int kvm_handle_unknown_ec(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
- u32 hsr = kvm_vcpu_get_hsr(vcpu);
+ u32 esr = kvm_vcpu_get_esr(vcpu);
- kvm_pr_unimpl("Unknown exception class: hsr: %#08x -- %s\n",
- hsr, esr_get_class_string(hsr));
+ kvm_pr_unimpl("Unknown exception class: esr: %#08x -- %s\n",
+ esr, esr_get_class_string(esr));
kvm_inject_undefined(vcpu);
return 1;
@@ -200,10 +200,10 @@ static exit_handle_fn arm_exit_handlers[] = {
static exit_handle_fn kvm_get_exit_handler(struct kvm_vcpu *vcpu)
{
- u32 hsr = kvm_vcpu_get_hsr(vcpu);
- u8 hsr_ec = ESR_ELx_EC(hsr);
+ u32 esr = kvm_vcpu_get_esr(vcpu);
+ u8 esr_ec = ESR_ELx_EC(esr);
- return arm_exit_handlers[hsr_ec];
+ return arm_exit_handlers[esr_ec];
}
/*
@@ -241,15 +241,15 @@ int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run,
int exception_index)
{
if (ARM_SERROR_PENDING(exception_index)) {
- u8 hsr_ec = ESR_ELx_EC(kvm_vcpu_get_hsr(vcpu));
+ u8 esr_ec = ESR_ELx_EC(kvm_vcpu_get_esr(vcpu));
/*
* HVC/SMC already have an adjusted PC, which we need
* to correct in order to return to after having
* injected the SError.
*/
- if (hsr_ec == ESR_ELx_EC_HVC32 || hsr_ec == ESR_ELx_EC_HVC64 ||
- hsr_ec == ESR_ELx_EC_SMC32 || hsr_ec == ESR_ELx_EC_SMC64) {
+ if (esr_ec == ESR_ELx_EC_HVC32 || esr_ec == ESR_ELx_EC_HVC64 ||
+ esr_ec == ESR_ELx_EC_SMC32 || esr_ec == ESR_ELx_EC_SMC64) {
u32 adj = kvm_vcpu_trap_il_is32bit(vcpu) ? 4 : 2;
*vcpu_pc(vcpu) -= adj;
}
@@ -307,5 +307,5 @@ void handle_exit_early(struct kvm_vcpu *vcpu, struct kvm_run *run,
exception_index = ARM_EXCEPTION_CODE(exception_index);
if (exception_index == ARM_EXCEPTION_EL1_SERROR)
- kvm_handle_guest_serror(vcpu, kvm_vcpu_get_hsr(vcpu));
+ kvm_handle_guest_serror(vcpu, kvm_vcpu_get_esr(vcpu));
}
diff --git a/arch/arm64/kvm/hyp/aarch32.c b/arch/arm64/kvm/hyp/aarch32.c
index 25c0e47d57cb..1e948704d60f 100644
--- a/arch/arm64/kvm/hyp/aarch32.c
+++ b/arch/arm64/kvm/hyp/aarch32.c
@@ -51,7 +51,7 @@ bool __hyp_text kvm_condition_valid32(const struct kvm_vcpu *vcpu)
int cond;
/* Top two bits non-zero? Unconditional. */
- if (kvm_vcpu_get_hsr(vcpu) >> 30)
+ if (kvm_vcpu_get_esr(vcpu) >> 30)
return true;
/* Is condition field valid? */
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c
index db1c4487d95d..5164074c1ae1 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -356,7 +356,7 @@ static bool __hyp_text __populate_fault_info(struct kvm_vcpu *vcpu)
static bool __hyp_text __hyp_handle_fpsimd(struct kvm_vcpu *vcpu)
{
bool vhe, sve_guest, sve_host;
- u8 hsr_ec;
+ u8 esr_ec;
if (!system_supports_fpsimd())
return false;
@@ -371,14 +371,14 @@ static bool __hyp_text __hyp_handle_fpsimd(struct kvm_vcpu *vcpu)
vhe = has_vhe();
}
- hsr_ec = kvm_vcpu_trap_get_class(vcpu);
- if (hsr_ec != ESR_ELx_EC_FP_ASIMD &&
- hsr_ec != ESR_ELx_EC_SVE)
+ esr_ec = kvm_vcpu_trap_get_class(vcpu);
+ if (esr_ec != ESR_ELx_EC_FP_ASIMD &&
+ esr_ec != ESR_ELx_EC_SVE)
return false;
/* Don't handle SVE traps for non-SVE vcpus here: */
if (!sve_guest)
- if (hsr_ec != ESR_ELx_EC_FP_ASIMD)
+ if (esr_ec != ESR_ELx_EC_FP_ASIMD)
return false;
/* Valid trap. Switch the context: */
@@ -437,7 +437,7 @@ static bool __hyp_text __hyp_handle_fpsimd(struct kvm_vcpu *vcpu)
static bool __hyp_text handle_tx2_tvm(struct kvm_vcpu *vcpu)
{
- u32 sysreg = esr_sys64_to_sysreg(kvm_vcpu_get_hsr(vcpu));
+ u32 sysreg = esr_sys64_to_sysreg(kvm_vcpu_get_esr(vcpu));
int rt = kvm_vcpu_sys_get_rt(vcpu);
u64 val = vcpu_get_reg(vcpu, rt);
@@ -529,7 +529,7 @@ static bool __hyp_text __hyp_handle_ptrauth(struct kvm_vcpu *vcpu)
u64 val;
if (!vcpu_has_ptrauth(vcpu) ||
- !esr_is_ptrauth_trap(kvm_vcpu_get_hsr(vcpu)))
+ !esr_is_ptrauth_trap(kvm_vcpu_get_esr(vcpu)))
return false;
ctxt = &__hyp_this_cpu_ptr(kvm_host_data)->host_ctxt;
diff --git a/arch/arm64/kvm/hyp/vgic-v3-sr.c b/arch/arm64/kvm/hyp/vgic-v3-sr.c
index 10ed539835c1..bee0a74671ca 100644
--- a/arch/arm64/kvm/hyp/vgic-v3-sr.c
+++ b/arch/arm64/kvm/hyp/vgic-v3-sr.c
@@ -426,7 +426,7 @@ static int __hyp_text __vgic_v3_bpr_min(void)
static int __hyp_text __vgic_v3_get_group(struct kvm_vcpu *vcpu)
{
- u32 esr = kvm_vcpu_get_hsr(vcpu);
+ u32 esr = kvm_vcpu_get_esr(vcpu);
u8 crm = (esr & ESR_ELx_SYS64_ISS_CRM_MASK) >> ESR_ELx_SYS64_ISS_CRM_SHIFT;
return crm != 8;
@@ -992,7 +992,7 @@ int __hyp_text __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu)
bool is_read;
u32 sysreg;
- esr = kvm_vcpu_get_hsr(vcpu);
+ esr = kvm_vcpu_get_esr(vcpu);
if (vcpu_mode_is_32bit(vcpu)) {
if (!kvm_condition_valid(vcpu)) {
__kvm_skip_instr(vcpu);
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 8c0035cab6b6..36506112480e 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -2079,7 +2079,7 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run)
* For RAS the host kernel may handle this abort.
* There is no need to pass the error into the guest.
*/
- if (!kvm_handle_guest_sea(fault_ipa, kvm_vcpu_get_hsr(vcpu)))
+ if (!kvm_handle_guest_sea(fault_ipa, kvm_vcpu_get_esr(vcpu)))
return 1;
if (unlikely(!is_iabt)) {
@@ -2088,7 +2088,7 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run)
}
}
- trace_kvm_guest_fault(*vcpu_pc(vcpu), kvm_vcpu_get_hsr(vcpu),
+ trace_kvm_guest_fault(*vcpu_pc(vcpu), kvm_vcpu_get_esr(vcpu),
kvm_vcpu_get_hfar(vcpu), fault_ipa);
/* Check the stage-2 fault is trans. fault or write fault */
@@ -2097,7 +2097,7 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run)
kvm_err("Unsupported FSC: EC=%#x xFSC=%#lx ESR_EL2=%#lx\n",
kvm_vcpu_trap_get_class(vcpu),
(unsigned long)kvm_vcpu_trap_get_fault(vcpu),
- (unsigned long)kvm_vcpu_get_hsr(vcpu));
+ (unsigned long)kvm_vcpu_get_esr(vcpu));
return -EFAULT;
}
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index baf5ce9225ce..a96dd62a90ce 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2220,10 +2220,10 @@ static int emulate_cp(struct kvm_vcpu *vcpu,
static void unhandled_cp_access(struct kvm_vcpu *vcpu,
struct sys_reg_params *params)
{
- u8 hsr_ec = kvm_vcpu_trap_get_class(vcpu);
+ u8 esr_ec = kvm_vcpu_trap_get_class(vcpu);
int cp = -1;
- switch(hsr_ec) {
+ switch (esr_ec) {
case ESR_ELx_EC_CP15_32:
case ESR_ELx_EC_CP15_64:
cp = 15;
@@ -2254,17 +2254,17 @@ static int kvm_handle_cp_64(struct kvm_vcpu *vcpu,
size_t nr_specific)
{
struct sys_reg_params params;
- u32 hsr = kvm_vcpu_get_hsr(vcpu);
+ u32 esr = kvm_vcpu_get_esr(vcpu);
int Rt = kvm_vcpu_sys_get_rt(vcpu);
- int Rt2 = (hsr >> 10) & 0x1f;
+ int Rt2 = (esr >> 10) & 0x1f;
params.is_aarch32 = true;
params.is_32bit = false;
- params.CRm = (hsr >> 1) & 0xf;
- params.is_write = ((hsr & 1) == 0);
+ params.CRm = (esr >> 1) & 0xf;
+ params.is_write = ((esr & 1) == 0);
params.Op0 = 0;
- params.Op1 = (hsr >> 16) & 0xf;
+ params.Op1 = (esr >> 16) & 0xf;
params.Op2 = 0;
params.CRn = 0;
@@ -2311,18 +2311,18 @@ static int kvm_handle_cp_32(struct kvm_vcpu *vcpu,
size_t nr_specific)
{
struct sys_reg_params params;
- u32 hsr = kvm_vcpu_get_hsr(vcpu);
+ u32 esr = kvm_vcpu_get_esr(vcpu);
int Rt = kvm_vcpu_sys_get_rt(vcpu);
params.is_aarch32 = true;
params.is_32bit = true;
- params.CRm = (hsr >> 1) & 0xf;
+ params.CRm = (esr >> 1) & 0xf;
params.regval = vcpu_get_reg(vcpu, Rt);
- params.is_write = ((hsr & 1) == 0);
- params.CRn = (hsr >> 10) & 0xf;
+ params.is_write = ((esr & 1) == 0);
+ params.CRn = (esr >> 10) & 0xf;
params.Op0 = 0;
- params.Op1 = (hsr >> 14) & 0x7;
- params.Op2 = (hsr >> 17) & 0x7;
+ params.Op1 = (esr >> 14) & 0x7;
+ params.Op2 = (esr >> 17) & 0x7;
if (!emulate_cp(vcpu, ¶ms, target_specific, nr_specific) ||
!emulate_cp(vcpu, ¶ms, global, nr_global)) {
@@ -2421,7 +2421,7 @@ static void reset_sys_reg_descs(struct kvm_vcpu *vcpu,
int kvm_handle_sys_reg(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
struct sys_reg_params params;
- unsigned long esr = kvm_vcpu_get_hsr(vcpu);
+ unsigned long esr = kvm_vcpu_get_esr(vcpu);
int Rt = kvm_vcpu_sys_get_rt(vcpu);
int ret;
--
2.27.0
