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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Mads Ynddal" <mads@ynddal.dk>,
	"Alexander Graf" <agraf@csgraf.de>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Phil Dennis-Jordan" <phil@philjordan.eu>,
	qemu-arm@nongnu.org, "Peter Maydell" <peter.maydell@linaro.org>,
	"Roman Bolshakov" <rbolshakov@ddn.com>,
	"Peter Collingbourne" <pcc@google.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Mohamed Mediouni" <mohamed@unpredictable.fr>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Cameron Esfahani" <dirty@apple.com>
Subject: [PATCH v2 26/58] target/arm: Better describe PMU depends on TCG or HVF
Date: Thu, 23 Oct 2025 16:30:47 +0200	[thread overview]
Message-ID: <20251023143051.11195-7-philmd@linaro.org> (raw)
In-Reply-To: <20251023114638.5667-1-philmd@linaro.org>

Simplify PMU logic by rewriting '!KVM' as 'TCG || HVF'
(ignoring QTest, because vCPUs are not available there).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/arm/cpu.c     |  2 +-
 target/arm/machine.c | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index bfc031c70c1..5eaf950b969 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1975,7 +1975,7 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
     if (arm_feature(env, ARM_FEATURE_PMU)) {
         pmu_init(cpu);
 
-        if (!kvm_enabled()) {
+        if (tcg_enabled() || hvf_enabled()) {
             arm_register_pre_el_change_hook(cpu, &pmu_pre_el_change, 0);
             arm_register_el_change_hook(cpu, &pmu_post_el_change, 0);
         }
diff --git a/target/arm/machine.c b/target/arm/machine.c
index 44a0cf844b0..80aa2e34b4b 100644
--- a/target/arm/machine.c
+++ b/target/arm/machine.c
@@ -1,7 +1,7 @@
 #include "qemu/osdep.h"
 #include "cpu.h"
 #include "qemu/error-report.h"
-#include "system/kvm.h"
+#include "system/hvf.h"
 #include "system/tcg.h"
 #include "kvm_arm.h"
 #include "internals.h"
@@ -943,7 +943,7 @@ static int cpu_pre_save(void *opaque)
 {
     ARMCPU *cpu = opaque;
 
-    if (!kvm_enabled()) {
+    if (tcg_enabled() || hvf_enabled()) {
         pmu_op_start(&cpu->env);
     }
 
@@ -978,7 +978,7 @@ static int cpu_post_save(void *opaque)
 {
     ARMCPU *cpu = opaque;
 
-    if (!kvm_enabled()) {
+    if (tcg_enabled() || hvf_enabled()) {
         pmu_op_finish(&cpu->env);
     }
 
@@ -1011,7 +1011,7 @@ static int cpu_pre_load(void *opaque)
      */
     env->irq_line_state = UINT32_MAX;
 
-    if (!kvm_enabled()) {
+    if (tcg_enabled() || hvf_enabled()) {
         pmu_op_start(env);
     }
 
@@ -1103,7 +1103,7 @@ static int cpu_post_load(void *opaque, int version_id)
         }
     }
 
-    if (!kvm_enabled()) {
+    if (tcg_enabled() || hvf_enabled()) {
         pmu_op_finish(env);
     }
 
-- 
2.51.0



  parent reply	other threads:[~2025-10-23 14:32 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-23 11:45 [PATCH v2 00/58] target/arm/hvf: Consolidate Philippe Mathieu-Daudé
2025-10-23 11:45 ` [PATCH v2 01/58] target/arm/hvf: Release memory allocated by hv_vcpu_config_create() Philippe Mathieu-Daudé
2025-10-23 11:45 ` [PATCH v2 02/58] target/arm/hvf: Trace vCPU KICK events Philippe Mathieu-Daudé
2025-10-25 17:01   ` Richard Henderson
2025-10-23 11:45 ` [PATCH v2 03/58] target/arm/hvf: Check hv_vcpus_exit() returned value Philippe Mathieu-Daudé
2025-10-25 17:02   ` Richard Henderson
2025-10-23 11:45 ` [PATCH v2 04/58] target/arm/hvf: Check hv_vcpu_set_vtimer_mask() " Philippe Mathieu-Daudé
2025-10-23 11:45 ` [PATCH v2 05/58] accel/hvf: Rename hvf_vcpu_exec() -> hvf_arch_vcpu_exec() Philippe Mathieu-Daudé
2025-10-23 11:45 ` [PATCH v2 06/58] accel/hvf: Rename hvf_put|get_registers -> hvf_arch_put|get_registers Philippe Mathieu-Daudé
2025-10-23 11:45 ` [PATCH v2 07/58] target/arm/hvf: Mention flush_cpu_state() must run on vCPU thread Philippe Mathieu-Daudé
2025-10-23 11:45 ` [PATCH v2 08/58] accel/hvf: Mention hvf_arch_init_vcpu() " Philippe Mathieu-Daudé
2025-10-23 11:45 ` [PATCH v2 09/58] target/arm/hvf: Mention hvf_sync_vtimer() " Philippe Mathieu-Daudé
2025-10-23 11:52 ` [PATCH v2 30/58] target/arm: Re-use arm_is_psci_call() in HVF Philippe Mathieu-Daudé
2025-10-25 17:28   ` Richard Henderson
2025-10-23 11:52 ` [PATCH v2 31/58] target/arm: Share ARM_PSCI_CALL trace event between TCG and HVF Philippe Mathieu-Daudé
2025-10-25 17:29   ` Richard Henderson
2025-10-23 11:52 ` [PATCH v2 32/58] target/arm/hvf/hvf: Document $pc adjustment in HVF & SMC Philippe Mathieu-Daudé
2025-10-25 17:30   ` Richard Henderson
2025-10-23 11:52 ` [PATCH v2 33/58] accel/hvf: Trace prefetch abort Philippe Mathieu-Daudé
2025-10-25 17:31   ` Richard Henderson
2025-10-23 11:52 ` [PATCH v2 34/58] accel/hvf: Create hvf_protect_clean_range, hvf_unprotect_dirty_range Philippe Mathieu-Daudé
2025-10-23 14:18   ` Philippe Mathieu-Daudé
2025-10-23 11:52 ` [PATCH v2 35/58] target/i386/hvf: Use hvf_unprotect_page Philippe Mathieu-Daudé
2025-10-23 14:19   ` Philippe Mathieu-Daudé
2025-10-23 11:52 ` [PATCH v2 36/58] target/i386/hvf: Use address_space_translate in ept_emulation_fault Philippe Mathieu-Daudé
2025-10-23 14:39   ` Philippe Mathieu-Daudé
2025-10-23 11:52 ` [PATCH v2 37/58] accel/hvf: Simplify hvf_log_* Philippe Mathieu-Daudé
2025-10-23 14:40   ` Philippe Mathieu-Daudé
2025-10-23 11:52 ` [PATCH v2 38/58] accel/hvf: Move hvf_log_sync to hvf_log_clear Philippe Mathieu-Daudé
2025-10-23 14:19   ` Philippe Mathieu-Daudé
2025-10-23 11:52 ` [PATCH v2 39/58] accel/hvf: Simplify hvf_set_phys_mem Philippe Mathieu-Daudé
2025-10-23 11:52 ` [PATCH v2 40/58] accel/hvf: Drop hvf_slot and hvf_find_overlap_slot Philippe Mathieu-Daudé
2025-10-23 14:20   ` Philippe Mathieu-Daudé
2025-10-23 11:52 ` [PATCH v2 41/58] accel/hvf: Remove mac_slots Philippe Mathieu-Daudé
2025-10-23 14:20   ` Philippe Mathieu-Daudé
2025-10-23 12:31 ` [PATCH v2 50/58] accel/hvf: Sync CNTV_CTL_EL0 & CNTV_CVAL_EL0 Philippe Mathieu-Daudé
2025-10-23 12:31 ` [PATCH v2 51/58] accel/hvf: Model PhysTimer register Philippe Mathieu-Daudé
2025-10-23 12:31 ` [PATCH v2 52/58] accel: Introduce AccelOpsClass::cpu_target_realize() hook Philippe Mathieu-Daudé
2025-10-23 12:31 ` [PATCH v2 53/58] accel/hvf: Add hvf_arch_cpu_realize() stubs Philippe Mathieu-Daudé
2025-10-23 12:31 ` [PATCH v2 54/58] target/arm: Create GTimers *after* features finalized / accel realized Philippe Mathieu-Daudé
2025-10-23 12:31 ` [PATCH v2 55/58] target/arm/hvf: Really set Generic Timer counter frequency Philippe Mathieu-Daudé
2025-10-23 12:31 ` [PATCH v2 56/58] accel/hvf: Do not abort in hvf_arm_get_*_ipa_bit_size() Philippe Mathieu-Daudé
2025-10-23 12:31 ` [PATCH v2 57/58] hw/arm/virt: Warn when HVF doesn't report IPA bit length Philippe Mathieu-Daudé
2025-10-23 12:31 ` [PATCH v2 58/58] target/arm: Only allow disabling NEON when using TCG Philippe Mathieu-Daudé
2025-10-25 17:58   ` Richard Henderson
2025-10-23 13:06 ` [PATCH v2 42/58] target/arm/hvf: Implement dirty page tracking Philippe Mathieu-Daudé
2025-10-23 14:43   ` Philippe Mathieu-Daudé
2025-10-25 18:25   ` Richard Henderson
2025-10-23 13:06 ` [PATCH v2 43/58] accel/hvf: Enforce host alignment when calling hv_vm_protect() Philippe Mathieu-Daudé
2025-10-23 13:06 ` [PATCH v2 44/58] accel/hvf: Have WFI returns if !cpu_has_work Philippe Mathieu-Daudé
2025-10-25 18:29   ` Richard Henderson
2025-10-23 13:06 ` [PATCH v2 45/58] accel/hvf: Implement WFI without using pselect() Philippe Mathieu-Daudé
2025-10-23 13:06 ` [PATCH v2 46/58] accel/hvf: Have PSCI CPU_SUSPEND halt the vCPU Philippe Mathieu-Daudé
2025-10-25 19:27   ` Richard Henderson
2025-10-23 13:06 ` [PATCH v2 47/58] accel/hvf: Introduce hvf_arch_cpu_synchronize_[pre/post]exec() hooks Philippe Mathieu-Daudé
2025-10-23 13:06 ` [PATCH v2 48/58] target/i386/hvf: Flush vCPU registers once before vcpu_exec() loop Philippe Mathieu-Daudé
2025-10-23 13:06 ` [PATCH v2 49/58] target/arm/hvf: " Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 10/58] target/arm/hvf: Mention hvf_arch_set_traps() must run on vCPU thread Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 11/58] accel/hvf: Mention hvf_arch_update_guest_debug() must run on vCPU Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 12/58] target/arm/hvf: Mention hvf_inject_interrupts() must run on vCPU thread Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 13/58] accel/hvf: Implement hvf_arch_vcpu_destroy() Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 14/58] target/arm/hvf: Hardcode Apple MIDR Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 15/58] target/arm/hvf: Simplify hvf_arm_get_host_cpu_features() Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 16/58] target/arm/hvf: switch hvf_arm_get_host_cpu_features to not create a vCPU Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 17/58] target/arm/hvf: Factor hvf_handle_exception() out Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 18/58] target/i386/hvf: Factor hvf_handle_vmexit() out Philippe Mathieu-Daudé
2025-10-23 14:13 ` [PATCH v2 19/58] target/arm/hvf: " Philippe Mathieu-Daudé
2025-10-23 14:30 ` [PATCH v2 20/58] target/arm/hvf: Keep calling hv_vcpu_run() in loop Philippe Mathieu-Daudé
2025-10-23 14:30 ` [PATCH v2 21/58] cpus: Trace cpu_exec_start() and cpu_exec_end() calls Philippe Mathieu-Daudé
2025-10-23 14:30 ` [PATCH v2 22/58] accel/hvf: Guard hv_vcpu_run() between cpu_exec_start/end() calls Philippe Mathieu-Daudé
2025-10-23 14:36   ` Philippe Mathieu-Daudé
2025-10-23 14:30 ` [PATCH v2 23/58] target/arm: Call aarch64_add_pauth_properties() once in host_initfn() Philippe Mathieu-Daudé
2025-10-23 14:30 ` [PATCH v2 24/58] accel/hvf: Restrict ARM specific fields of AccelCPUState Philippe Mathieu-Daudé
2025-10-23 14:30 ` [PATCH v2 25/58] target/arm: Rename init_cpreg_list() -> arm_init_cpreg_list() Philippe Mathieu-Daudé
2025-10-23 14:30 ` Philippe Mathieu-Daudé [this message]
2025-10-23 14:30 ` [PATCH v2 27/58] target/arm/hvf: Rename 'vgic' -> 'emu_reginfo' in trace events Philippe Mathieu-Daudé
2025-10-23 14:30 ` [PATCH v2 28/58] target/arm/hvf: Emulate PMU registers Philippe Mathieu-Daudé
2025-10-23 14:30 ` [PATCH v2 29/58] target/arm/hvf: Emulate Monitor Debug registers Philippe Mathieu-Daudé

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