From: Robert Foley <robert.foley@linaro.org>
To: qemu-devel@nongnu.org
Cc: robert.foley@linaro.org, Eduardo Habkost <ehabkost@redhat.com>,
cota@braap.org, Paolo Bonzini <pbonzini@redhat.com>,
peter.puhov@linaro.org, alex.bennee@linaro.org,
Richard Henderson <rth@twiddle.net>
Subject: [PATCH v10 31/73] cpu: convert to cpu_halted
Date: Wed, 17 Jun 2020 17:01:49 -0400 [thread overview]
Message-ID: <20200617210231.4393-32-robert.foley@linaro.org> (raw)
In-Reply-To: <20200617210231.4393-1-robert.foley@linaro.org>
From: "Emilio G. Cota" <cota@braap.org>
This finishes the conversion to cpu_halted.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Robert Foley <robert.foley@linaro.org>
---
accel/tcg/cpu-exec.c | 2 +-
cpus.c | 4 ++--
hw/core/cpu.c | 2 +-
hw/core/machine-qmp-cmds.c | 2 +-
4 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index e296894ea1..099dd83ee0 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -435,7 +435,7 @@ static inline bool cpu_handle_halt_locked(CPUState *cpu)
&& replay_interrupt()) {
X86CPU *x86_cpu = X86_CPU(cpu);
- /* prevent deadlock; cpu_mutex must be acquired _after_ the BQL */
+ /* locking order: cpu_mutex must be acquired _after_ the BQL */
cpu_mutex_unlock(cpu);
qemu_mutex_lock_iothread();
cpu_mutex_lock(cpu);
diff --git a/cpus.c b/cpus.c
index 8edc9858d6..e070bffbff 100644
--- a/cpus.c
+++ b/cpus.c
@@ -223,7 +223,7 @@ static bool cpu_thread_is_idle(CPUState *cpu)
if (cpu_is_stopped(cpu)) {
return true;
}
- if (!cpu->halted || cpu_has_work(cpu) ||
+ if (!cpu_halted(cpu) || cpu_has_work(cpu) ||
kvm_halt_in_kernel()) {
return false;
}
@@ -1865,7 +1865,7 @@ static void *qemu_tcg_cpu_thread_fn(void *arg)
*
* cpu->halted should ensure we sleep in wait_io_event
*/
- g_assert(cpu->halted);
+ g_assert(cpu_halted(cpu));
break;
case EXCP_ATOMIC:
qemu_mutex_unlock_iothread();
diff --git a/hw/core/cpu.c b/hw/core/cpu.c
index 1d2cafe76c..64a1bf3e92 100644
--- a/hw/core/cpu.c
+++ b/hw/core/cpu.c
@@ -259,7 +259,7 @@ static void cpu_common_reset(DeviceState *dev)
}
cpu->interrupt_request = 0;
- cpu->halted = 0;
+ cpu_halted_set(cpu, 0);
cpu->mem_io_pc = 0;
cpu->icount_extra = 0;
atomic_set(&cpu->icount_decr_ptr->u32, 0);
diff --git a/hw/core/machine-qmp-cmds.c b/hw/core/machine-qmp-cmds.c
index 2c5da8413d..a35559b5d8 100644
--- a/hw/core/machine-qmp-cmds.c
+++ b/hw/core/machine-qmp-cmds.c
@@ -62,7 +62,7 @@ CpuInfoList *qmp_query_cpus(Error **errp)
info->value = g_malloc0(sizeof(*info->value));
info->value->CPU = cpu->cpu_index;
info->value->current = (cpu == first_cpu);
- info->value->halted = cpu->halted;
+ info->value->halted = cpu_halted(cpu);
info->value->qom_path = object_get_canonical_path(OBJECT(cpu));
info->value->thread_id = cpu->thread_id;
#if defined(TARGET_I386)
--
2.17.1
next prev parent reply other threads:[~2020-06-17 21:23 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-17 21:01 [PATCH v10 00/73] per-CPU locks Robert Foley
2020-06-17 21:01 ` [PATCH v10 01/73] cpu: rename cpu->work_mutex to cpu->lock Robert Foley
2020-06-17 21:01 ` [PATCH v10 02/73] cpu: introduce cpu_mutex_lock/unlock Robert Foley
2020-06-17 21:01 ` [PATCH v10 03/73] cpu: make qemu_work_cond per-cpu Robert Foley
2020-06-17 21:01 ` [PATCH v10 04/73] cpu: move run_on_cpu to cpus-common Robert Foley
2020-06-17 21:01 ` [PATCH v10 05/73] cpu: introduce process_queued_cpu_work_locked Robert Foley
2020-06-17 21:01 ` [PATCH v10 06/73] cpu: make per-CPU locks an alias of the BQL in TCG rr mode Robert Foley
2020-06-17 21:01 ` [PATCH v10 07/73] tcg-runtime: define helper_cpu_halted_set Robert Foley
2020-06-17 21:01 ` [PATCH v10 08/73] ppc: convert to helper_cpu_halted_set Robert Foley
2020-06-17 21:01 ` [PATCH v10 09/73] cris: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 10/73] hppa: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 11/73] m68k: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 12/73] alpha: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 13/73] microblaze: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 14/73] cpu: define cpu_halted helpers Robert Foley
2020-06-17 21:01 ` [PATCH v10 15/73] tcg-runtime: convert to cpu_halted_set Robert Foley
2020-06-17 21:01 ` [PATCH v10 16/73] hw/semihosting: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 17/73] arm: convert to cpu_halted Robert Foley
2020-06-17 21:01 ` [PATCH v10 18/73] ppc: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 19/73] sh4: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 20/73] i386: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 21/73] lm32: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 22/73] m68k: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 23/73] mips: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 24/73] riscv: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 25/73] s390x: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 26/73] sparc: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 27/73] xtensa: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 28/73] gdbstub: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 29/73] openrisc: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 30/73] cpu-exec: " Robert Foley
2020-06-17 21:01 ` Robert Foley [this message]
2020-06-17 21:01 ` [PATCH v10 32/73] cpu: define cpu_interrupt_request helpers Robert Foley
2020-06-17 21:01 ` [PATCH v10 33/73] ppc: use cpu_reset_interrupt Robert Foley
2020-06-17 21:01 ` [PATCH v10 34/73] exec: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 35/73] i386: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 36/73] s390x: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 37/73] openrisc: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 38/73] arm: convert to cpu_interrupt_request Robert Foley
2020-06-17 21:01 ` [PATCH v10 39/73] i386: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 40/73] i386/kvm: " Robert Foley
2020-06-17 21:01 ` [PATCH v10 41/73] i386/hax-all: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 42/73] i386/whpx-all: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 43/73] i386/hvf: convert to cpu_request_interrupt Robert Foley
2020-06-17 21:02 ` [PATCH v10 44/73] ppc: convert to cpu_interrupt_request Robert Foley
2020-06-17 21:02 ` [PATCH v10 45/73] sh4: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 46/73] cris: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 47/73] hppa: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 48/73] lm32: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 49/73] m68k: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 50/73] mips: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 51/73] nios: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 52/73] s390x: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 53/73] alpha: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 54/73] moxie: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 55/73] sparc: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 56/73] openrisc: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 57/73] unicore32: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 58/73] microblaze: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 59/73] accel/tcg: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 60/73] cpu: convert to interrupt_request Robert Foley
2020-06-17 21:02 ` [PATCH v10 61/73] cpu: call .cpu_has_work with the CPU lock held Robert Foley
2020-06-17 21:02 ` [PATCH v10 62/73] cpu: introduce cpu_has_work_with_iothread_lock Robert Foley
2020-06-17 21:02 ` [PATCH v10 63/73] ppc: convert to cpu_has_work_with_iothread_lock Robert Foley
2020-06-17 21:02 ` [PATCH v10 64/73] mips: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 65/73] s390x: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 66/73] riscv: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 67/73] sparc: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 68/73] xtensa: " Robert Foley
2020-06-17 21:02 ` [PATCH v10 69/73] cpu: rename all_cpu_threads_idle to qemu_tcg_rr_all_cpu_threads_idle Robert Foley
2020-06-17 21:02 ` [PATCH v10 70/73] cpu: protect CPU state with cpu->lock instead of the BQL Robert Foley
2020-06-17 21:02 ` [PATCH v10 71/73] cpus-common: release BQL earlier in run_on_cpu Robert Foley
2020-06-17 21:02 ` [PATCH v10 72/73] cpu: add async_run_on_cpu_no_bql Robert Foley
2020-06-17 21:02 ` [PATCH v10 73/73] cputlb: queue async flush jobs without the BQL Robert Foley
2020-06-17 22:20 ` [PATCH v10 00/73] per-CPU locks no-reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200617210231.4393-32-robert.foley@linaro.org \
--to=robert.foley@linaro.org \
--cc=alex.bennee@linaro.org \
--cc=cota@braap.org \
--cc=ehabkost@redhat.com \
--cc=pbonzini@redhat.com \
--cc=peter.puhov@linaro.org \
--cc=qemu-devel@nongnu.org \
--cc=rth@twiddle.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).