[PATCH RFCv2 3/9] kvm/arm64: Rename kvm_vcpu_get_hsr() to kvm_vcpu_get_esr()

From: Gavin Shan
Date: Thu May 07 2020 - 23:30:58 EST

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Since kvm/arm32 was removed, this renames kvm_vcpu_get_hsr() to
kvm_vcpu_get_esr() to it a bit more self-explaining because the
functions returns ESR instead of HSR on aarch64. This shouldn't
cause any functional changes.

Signed-off-by: Gavin Shan <gshan@xxxxxxxxxx>
---
arch/arm64/include/asm/kvm_emulate.h | 36 +++++++++++++++-------------
arch/arm64/kvm/handle_exit.c | 12 +++++-----
arch/arm64/kvm/hyp/switch.c | 2 +-
arch/arm64/kvm/sys_regs.c | 6 ++---
virt/kvm/arm/hyp/aarch32.c | 2 +-
virt/kvm/arm/hyp/vgic-v3-sr.c | 4 ++--
virt/kvm/arm/mmu.c | 6 ++---
7 files changed, 35 insertions(+), 33 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index a30b4eec7cb4..bd1a69e7c104 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -265,14 +265,14 @@ 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;
@@ -297,64 +297,66 @@ 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)
@@ -364,12 +366,12 @@ 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)
@@ -393,7 +395,7 @@ 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 aacfc55de44c..c5b75a4d5eda 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));
@@ -119,7 +119,7 @@ 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 hsr = kvm_vcpu_get_esr(vcpu);
int ret = 0;

run->exit_reason = KVM_EXIT_DEBUG;
@@ -146,7 +146,7 @@ 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 hsr = kvm_vcpu_get_esr(vcpu);

kvm_pr_unimpl("Unknown exception class: hsr: %#08x -- %s\n",
hsr, esr_get_class_string(hsr));
@@ -226,7 +226,7 @@ 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);
+ u32 hsr = kvm_vcpu_get_esr(vcpu);
u8 hsr_ec = ESR_ELx_EC(hsr);

return arm_exit_handlers[hsr_ec];
@@ -267,7 +267,7 @@ 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 hsr_ec = ESR_ELx_EC(kvm_vcpu_get_esr(vcpu));

/*
* HVC/SMC already have an adjusted PC, which we need
@@ -333,5 +333,5 @@ 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/switch.c b/arch/arm64/kvm/hyp/switch.c
index 8a1e81a400e0..2c3242bcfed2 100644
--- a/arch/arm64/kvm/hyp/switch.c
+++ b/arch/arm64/kvm/hyp/switch.c
@@ -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);

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 51db934702b6..5b61465927b7 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2214,7 +2214,7 @@ 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 hsr = kvm_vcpu_get_esr(vcpu);
int Rt = kvm_vcpu_sys_get_rt(vcpu);
int Rt2 = (hsr >> 10) & 0x1f;

@@ -2271,7 +2271,7 @@ 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 hsr = kvm_vcpu_get_esr(vcpu);
int Rt = kvm_vcpu_sys_get_rt(vcpu);

params.is_aarch32 = true;
@@ -2387,7 +2387,7 @@ 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;

diff --git a/virt/kvm/arm/hyp/aarch32.c b/virt/kvm/arm/hyp/aarch32.c
index d31f267961e7..864b477e660a 100644
--- a/virt/kvm/arm/hyp/aarch32.c
+++ b/virt/kvm/arm/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/virt/kvm/arm/hyp/vgic-v3-sr.c b/virt/kvm/arm/hyp/vgic-v3-sr.c
index ccf1fde9836c..8a7a14ec9120 100644
--- a/virt/kvm/arm/hyp/vgic-v3-sr.c
+++ b/virt/kvm/arm/hyp/vgic-v3-sr.c
@@ -441,7 +441,7 @@ 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;
@@ -1007,7 +1007,7 @@ 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/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index e3b9ee268823..5da0d0e7519b 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -1922,7 +1922,7 @@ 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)) {
@@ -1931,7 +1931,7 @@ 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 */
@@ -1940,7 +1940,7 @@ 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;
}

--
2.23.0

Next message: Gavin Shan: "[PATCH RFCv2 4/9] kvm/arm64: Detach ESR operator from vCPU struct"
Previous message: Gavin Shan: "[PATCH RFCv2 1/9] arm64: Probe for the presence of KVM hypervisor services during boot"
In reply to: Gavin Shan: "[PATCH RFCv2 1/9] arm64: Probe for the presence of KVM hypervisor services during boot"
Next in thread: Gavin Shan: "[PATCH RFCv2 4/9] kvm/arm64: Detach ESR operator from vCPU struct"
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