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From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Igor Mammedov" <imammedo@redhat.com>
Subject: [PULL 13/61] cpus: remove TCG-ism from cpu_exit()
Date: Sat, 13 Sep 2025 10:08:54 +0200	[thread overview]
Message-ID: <20250913080943.11710-14-pbonzini@redhat.com> (raw)
In-Reply-To: <20250913080943.11710-1-pbonzini@redhat.com>

Now that TCG has its own kick function, make cpu_exit() do the right kick
for all accelerators.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/core/cpu-common.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c
index 42463e6258d..41a339903ca 100644
--- a/hw/core/cpu-common.c
+++ b/hw/core/cpu-common.c
@@ -76,9 +76,7 @@ void cpu_exit(CPUState *cpu)
 {
     /* Ensure cpu_exec will see the reason why the exit request was set.  */
     qatomic_store_release(&cpu->exit_request, true);
-    /* Ensure cpu_exec will see the exit request after TCG has exited.  */
-    smp_wmb();
-    qatomic_set(&cpu->neg.icount_decr.u16.high, -1);
+    qemu_cpu_kick(cpu);
 }
 
 static int cpu_common_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg)
-- 
2.51.0



  parent reply	other threads:[~2025-09-13  8:14 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-13  8:08 [PULL 00/61] CPU, Rust, x86 changes for 2025-09-13 Paolo Bonzini
2025-09-13  8:08 ` [PULL 01/61] target/ppc: limit cpu_interrupt_exittb to system emulation Paolo Bonzini
2025-09-13  8:08 ` [PULL 02/61] target/sparc: limit cpu_check_irqs " Paolo Bonzini
2025-09-13  8:08 ` [PULL 03/61] target/i386: limit a20 " Paolo Bonzini
2025-09-13  8:08 ` [PULL 04/61] target-arm: remove uses of cpu_interrupt() for user-mode emulation Paolo Bonzini
2025-09-13  8:08 ` [PULL 05/61] user-exec: remove cpu_interrupt() stub Paolo Bonzini
2025-09-13  8:08 ` [PULL 06/61] treewide: clear bits of cs->interrupt_request with cpu_reset_interrupt() Paolo Bonzini
2025-09-13  8:08 ` [PULL 07/61] cpu-common: use atomic access for interrupt_request Paolo Bonzini
2025-09-13  8:08 ` [PULL 08/61] cpus: document that qemu_cpu_kick() can be used for BQL-less operation Paolo Bonzini
2025-09-13  8:08 ` [PULL 09/61] accel: use store_release/load_acquire for cross-thread exit_request Paolo Bonzini
2025-09-13  8:08 ` [PULL 10/61] accel: use atomic accesses for exit_request Paolo Bonzini
2025-09-13  8:08 ` [PULL 11/61] accel/tcg: create a thread-kick function for TCG Paolo Bonzini
2025-09-13  8:08 ` [PULL 12/61] accel/tcg: inline cpu_exit() Paolo Bonzini
2025-09-13  8:08 ` Paolo Bonzini [this message]
2025-09-13  8:08 ` [PULL 14/61] cpus: properly kick CPUs out of inner execution loop Paolo Bonzini
2025-09-13  8:08 ` [PULL 15/61] treewide: rename qemu_wait_io_event/qemu_wait_io_event_common Paolo Bonzini
2025-09-13  8:08 ` [PULL 16/61] bsd-user, linux-user: introduce qemu_process_cpu_events Paolo Bonzini
2025-09-13  8:08 ` [PULL 17/61] cpus: clear exit_request in qemu_process_cpu_events Paolo Bonzini
2025-09-13  8:08 ` [PULL 18/61] accel: make all calls to qemu_process_cpu_events look the same Paolo Bonzini
2025-09-13  8:09 ` [PULL 19/61] tcg/user: do not set exit_request gratuitously Paolo Bonzini
2025-09-13  8:09 ` [PULL 20/61] ci: temporarily remove rust from Ubuntu Paolo Bonzini
2025-09-13  8:09 ` [PULL 21/61] configure: bump Meson to 1.9.0 for use with Rust Paolo Bonzini
2025-09-22 14:07   ` Peter Maydell
2025-09-22 15:14     ` Paolo Bonzini
2025-09-13  8:09 ` [PULL 22/61] meson, cargo: require Rust 1.83.0 Paolo Bonzini
2025-09-13  8:09 ` [PULL 23/61] rust: add missing const markers for MSRV==1.83.0 Paolo Bonzini
2025-09-13  8:09 ` [PULL 24/61] rust: use inline const expressions Paolo Bonzini
2025-09-13  8:09 ` [PULL 25/61] rust: add qdev Device derive macro Paolo Bonzini
2025-09-13  8:09 ` [PULL 26/61] rust: vmstate: convert to use builder pattern Paolo Bonzini
2025-09-13  8:09 ` [PULL 27/61] rust: vmstate: use const_refs_to_static Paolo Bonzini
2025-09-13  8:09 ` [PULL 28/61] rust: qdev: const_refs_to_static Paolo Bonzini
2025-09-13  8:09 ` [PULL 29/61] docs/rust: update msrv Paolo Bonzini
2025-09-13  8:09 ` [PULL 30/61] rust: remove unused global qemu "allocator" Paolo Bonzini
2025-09-13  8:09 ` [PULL 31/61] rust: add workspace authors Paolo Bonzini
2025-09-13  8:09 ` [PULL 32/61] rust: move vmstate_clock!() to qdev module Paolo Bonzini
2025-09-13  8:09 ` [PULL 33/61] rust: move VMState handling to QOM module Paolo Bonzini
2025-09-13  8:09 ` [PULL 34/61] rust: move Cell vmstate impl Paolo Bonzini
2025-09-13  8:09 ` [PULL 35/61] rust: split Rust-only "common" crate Paolo Bonzini
2025-09-13  8:09 ` [PULL 36/61] rust: make build.rs generic over various ./rust/projects Paolo Bonzini
2025-09-13  8:09 ` [PULL 37/61] rust: split "util" crate Paolo Bonzini
2025-09-13  8:09 ` [PULL 38/61] rust: split "migration" crate Paolo Bonzini
2025-09-13  8:09 ` [PULL 39/61] rust: split "bql" crate Paolo Bonzini
2025-09-13  8:09 ` [PULL 40/61] rust: split "qom" crate Paolo Bonzini
2025-09-13  8:09 ` [PULL 41/61] rust: split "chardev" crate Paolo Bonzini
2025-09-13  8:09 ` [PULL 42/61] rust: split "system" crate Paolo Bonzini
2025-09-13  8:09 ` [PULL 43/61] rust: split "hwcore" crate Paolo Bonzini
2025-09-13  8:09 ` [PULL 44/61] rust: rename qemu_api_macros -> qemu_macros Paolo Bonzini
2025-09-13  8:09 ` [PULL 45/61] rust/hpet: drop now unneeded qemu_api dep Paolo Bonzini
2025-09-13  8:09 ` [PULL 46/61] rust/pl011: drop dependency on qemu_api Paolo Bonzini
2025-09-13  8:09 ` [PULL 47/61] rust: repurpose qemu_api -> tests Paolo Bonzini
2025-09-13  8:09 ` [PULL 48/61] rust: re-export qemu_macros internal helper in "bits" Paolo Bonzini
2025-09-13  8:09 ` [PULL 49/61] rust: re-export qemu macros from common/qom/hwcore Paolo Bonzini
2025-09-13  8:09 ` [PULL 50/61] docs: update rust.rst Paolo Bonzini
2025-09-13  8:09 ` [PULL 51/61] rust: meson: remove unnecessary complication in device crates Paolo Bonzini
2025-09-13  8:09 ` [PULL 52/61] rust: do not inline do_init_io Paolo Bonzini
2025-09-13  8:09 ` [PULL 53/61] hpet: guard IRQ handling with BQL Paolo Bonzini
2025-09-13  8:09 ` [PULL 54/61] i386/cpu: Enable SMM cpu address space under KVM Paolo Bonzini
2025-09-18 16:24   ` Michael Tokarev
2025-09-22 15:16     ` Paolo Bonzini
2025-09-26 17:48   ` Peter Maydell
2025-09-28  6:51     ` Xiaoyao Li
2025-09-13  8:09 ` [PULL 55/61] target/i386: Define enum X86ASIdx for x86's address spaces Paolo Bonzini
2025-09-13  8:09 ` [PULL 56/61] multiboot: Fix the split lock Paolo Bonzini
2025-09-13  8:09 ` [PULL 57/61] i386/kvm: Get X86MachineState in kvm_arch_init() without the cast check Paolo Bonzini
2025-09-13  8:09 ` [PULL 58/61] i386/kvm: Drop KVM_CAP_X86_SMM check in kvm_arch_init() Paolo Bonzini
2025-09-13  8:09 ` [PULL 59/61] accel/kvm: Switch to check KVM_CAP_GUEST_MEMFD and KVM_CAP_USER_MEMORY2 on VM Paolo Bonzini
2025-09-13  8:09 ` [PULL 60/61] accel/kvm: Zero out mem explicitly in kvm_set_user_memory_region() Paolo Bonzini
2025-09-13  8:09 ` [PULL 61/61] accel/kvm: Set guest_memfd_offset to non-zero value only when guest_memfd is valid Paolo Bonzini
2025-09-13  9:37 ` [PULL 00/61] CPU, Rust, x86 changes for 2025-09-13 Peter Maydell
2025-09-16 14:37   ` Peter Maydell
2025-09-16 14:53     ` Paolo Bonzini
2025-09-17 16:33 ` Richard Henderson
2025-09-18 12:38   ` Xiaoyao Li

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