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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Alex Bennée" <alex.bennee@linaro.org>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Pierrick Bouvier" <pierrick.bouvier@linaro.org>,
	kvm@vger.kernel.org,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	qemu-arm@nongnu.org
Subject: [PATCH v5 47/69] target/arm: Use generic hwaccel_enabled() to check 'host' cpu type
Date: Thu,  3 Jul 2025 12:55:13 +0200	[thread overview]
Message-ID: <20250703105540.67664-48-philmd@linaro.org> (raw)
In-Reply-To: <20250703105540.67664-1-philmd@linaro.org>

We should be able to use the 'host' CPU with any hardware accelerator.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/arm-qmp-cmds.c | 5 +++--
 target/arm/cpu.c          | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/target/arm/arm-qmp-cmds.c b/target/arm/arm-qmp-cmds.c
index cefd2352638..ee5eb1bac9f 100644
--- a/target/arm/arm-qmp-cmds.c
+++ b/target/arm/arm-qmp-cmds.c
@@ -30,6 +30,7 @@
 #include "qapi/qapi-commands-misc-arm.h"
 #include "qobject/qdict.h"
 #include "qom/qom-qobject.h"
+#include "system/hw_accel.h"
 #include "cpu.h"
 
 static GICCapability *gic_cap_new(int version)
@@ -116,8 +117,8 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
         return NULL;
     }
 
-    if (!kvm_enabled() && !strcmp(model->name, "host")) {
-        error_setg(errp, "The CPU type '%s' requires KVM", model->name);
+    if (!hwaccel_enabled() && !strcmp(model->name, "host")) {
+        error_setg(errp, "The CPU type 'host' requires hardware accelerator");
         return NULL;
     }
 
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index ebac86f70d3..e37376dbd2d 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -1978,8 +1978,9 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
      * this is the first point where we can report it.
      */
     if (cpu->host_cpu_probe_failed) {
-        if (!kvm_enabled() && !hvf_enabled()) {
-            error_setg(errp, "The 'host' CPU type can only be used with KVM or HVF");
+        if (!hwaccel_enabled()) {
+            error_setg(errp, "The 'host' CPU type can only be used with "
+                             "hardware accelator such KVM/HVF");
         } else {
             error_setg(errp, "Failed to retrieve host CPU features");
         }
-- 
2.49.0



  parent reply	other threads:[~2025-07-03 11:03 UTC|newest]

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-03 10:54 [PATCH v5 00/69] accel: Preparatory cleanups for split-accel Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 01/69] system/memory: Restrict eventfd dispatch_write() to emulators Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 02/69] system/runstate: Document qemu_add_vm_change_state_handler() Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 03/69] system/cpus: Defer memory layout changes until vCPUs are realized Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 04/69] system/cpus: Assert interrupt handling is done with BQL locked Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 05/69] accel: Keep reference to AccelOpsClass in AccelClass Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 06/69] accel: Introduce AccelOpsClass::cpu_target_realize() hook Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 07/69] accel/hvf: Add hvf_arch_cpu_realize() stubs Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 08/69] accel/kvm: Remove kvm_init_cpu_signals() stub Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 09/69] accel/kvm: Reduce kvm_create_vcpu() declaration scope Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 10/69] accel: Propagate AccelState to AccelClass::init_machine() Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 11/69] accel/kvm: Prefer local AccelState over global MachineState::accel Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 12/69] accel/hvf: Re-use QOM allocated state Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 13/69] accel/tcg: Prefer local AccelState over global current_accel() Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 14/69] accel: Directly pass AccelState argument to AccelClass::has_memory() Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 15/69] accel/kvm: Directly pass KVMState argument to do_kvm_create_vm() Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 16/69] accel: Remove unused MachineState argument of AccelClass::setup_post() Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 17/69] accel: Pass AccelState argument to gdbstub_supported_sstep_flags() Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 18/69] accel: Move supports_guest_debug() declaration to AccelClass Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 19/69] accel: Move cpus_are_resettable() " Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 20/69] accel: Move cpu_common_[un]realize() declarations to AccelOpsClass Philippe Mathieu-Daudé
2025-07-03 14:50   ` Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 21/69] accel/system: Convert pre_resume() from AccelOpsClass to AccelClass Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 22/69] hw/core/machine: Display CPU model name in 'info cpus' command Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 23/69] accel/tcg: Remove 'info opcount' and @x-query-opcount Philippe Mathieu-Daudé
2025-07-03 11:32   ` Dr. David Alan Gilbert
2025-07-03 17:12   ` Richard Henderson
2025-07-03 10:54 ` [PATCH v5 24/69] accel/tcg: Remove profiler leftover Philippe Mathieu-Daudé
2025-07-03 17:12   ` Richard Henderson
2025-07-03 10:54 ` [PATCH v5 25/69] accel/tcg: Factor tcg_dump_flush_info() out Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 26/69] accel/tcg: Factor tcg_dump_stats() out for re-use Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 27/69] accel/tcg: Extract statistic related code to tcg-stats.c Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 28/69] qapi: Move definitions related to accelerators in their own file Philippe Mathieu-Daudé
2025-07-03 16:42   ` Philippe Mathieu-Daudé
2025-07-15 17:29     ` Philippe Mathieu-Daudé
2025-07-16  8:23     ` Markus Armbruster
2025-07-16  9:24       ` Daniel P. Berrangé
2025-07-17  8:45         ` Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 29/69] accel/system: Introduce @x-accel-stats QMP command Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 30/69] accel/system: Add 'info accel' on human monitor Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 31/69] accel/tcg: Implement get_[vcpu]_stats() Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 32/69] accel/hvf: Implement get_vcpu_stats() Philippe Mathieu-Daudé
2025-07-03 10:54 ` [PATCH v5 33/69] accel/hvf: Report missing com.apple.security.hypervisor entitlement Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 34/69] accel/hvf: Restrict internal declarations Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 35/69] accel/hvf: Move per-cpu method declarations to hvf-accel-ops.c Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 36/69] accel/hvf: Move generic method declarations to hvf-all.c Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 37/69] cpus: Document CPUState::vcpu_dirty field Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 38/69] accel/hvf: Replace @dirty field by generic " Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 39/69] accel/nvmm: " Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 40/69] accel/whpx: " Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 41/69] accel/kvm: Remove kvm_cpu_synchronize_state() stub Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 42/69] accel/system: Document cpu_synchronize_state() Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 43/69] accel/system: Document cpu_synchronize_state_post_init/reset() Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 44/69] accel/nvmm: Expose nvmm_enabled() to common code Philippe Mathieu-Daudé
2025-07-03 11:01   ` Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 45/69] accel/whpx: Expose whpx_enabled() " Philippe Mathieu-Daudé
2025-07-03 11:02   ` Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 46/69] accel/system: Introduce hwaccel_enabled() helper Philippe Mathieu-Daudé
2025-07-03 10:55 ` Philippe Mathieu-Daudé [this message]
2025-07-03 13:45   ` [PATCH v5 47/69] target/arm: Use generic hwaccel_enabled() to check 'host' cpu type Philippe Mathieu-Daudé
2025-07-03 13:46     ` Peter Maydell
2025-07-03 14:46       ` Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 48/69] accel/dummy: Extract 'dummy-cpus.h' header from 'system/cpus.h' Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 49/69] accel/dummy: Factor dummy_thread_precreate() out Philippe Mathieu-Daudé
2025-07-03 17:19   ` Richard Henderson
2025-07-03 10:55 ` [PATCH v5 50/69] accel/tcg: Factor tcg_vcpu_thread_precreate() out Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 51/69] accel: Factor accel_create_vcpu_thread() out Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 52/69] accel: Introduce AccelOpsClass::cpu_thread_routine handler Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 53/69] accel/dummy: Convert to AccelOpsClass::cpu_thread_routine Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 54/69] accel/tcg: " Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 55/69] accel/hvf: " Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 56/69] accel/kvm: " Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 57/69] accel/nvmm: " Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 58/69] accel/whpx: " Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 59/69] accel: Factor accel_cpu_realize() out Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 60/69] accel: Pass old/new interrupt mask to handle_interrupt() handler Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 61/69] accel: Expose and register generic_handle_interrupt() Philippe Mathieu-Daudé
2025-07-03 17:21   ` Richard Henderson
2025-07-03 10:55 ` [PATCH v5 62/69] accel: Always register AccelOpsClass::kick_vcpu_thread() handler Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 63/69] accel: Always register AccelOpsClass::get_elapsed_ticks() handler Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 64/69] accel: Always register AccelOpsClass::get_virtual_clock() handler Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 65/69] accel/tcg: Factor tcg_vcpu_init() out for re-use Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 66/69] accel/tcg: Factor mttcg_cpu_exec() " Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 67/69] accel/tcg: Factor rr_cpu_exec() out Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 68/69] accel/tcg: Clear exit_request once in tcg_cpu_exec() Philippe Mathieu-Daudé
2025-07-03 10:55 ` [PATCH v5 69/69] accel/tcg: Unregister the RCU before exiting RR thread Philippe Mathieu-Daudé
2025-07-03 11:06 ` [PATCH v5 00/69] accel: Preparatory cleanups for split-accel Philippe Mathieu-Daudé

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