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From: "Alex Bennée" <alex.bennee@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Mahmoud Mandour" <ma.mandourr@gmail.com>,
	"Pierrick Bouvier" <pierrick.bouvier@linaro.org>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Mark Burton" <mburton@qti.qualcomm.com>,
	"Alwalid Salama" <asalama@qti.qualcomm.com>,
	"Laurent Vivier" <laurent@vivier.eu>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Alexandre Iooss" <erdnaxe@crans.org>
Subject: [PATCH 1/2] accel/tcg: add get_virtual_clock for TCG
Date: Thu,  3 Apr 2025 12:38:50 +0100	[thread overview]
Message-ID: <20250403113851.4182190-2-alex.bennee@linaro.org> (raw)
In-Reply-To: <20250403113851.4182190-1-alex.bennee@linaro.org>

Rather than allowing cpus_get_virtual_clock() to fall through to
cpu_get_clock() introduce a TCG handler so it can make a decision
about what time it is.

Initially this just calls cpu_get_clock() as before but this will
change in later commits.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 accel/tcg/tcg-accel-ops.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/accel/tcg/tcg-accel-ops.c b/accel/tcg/tcg-accel-ops.c
index d9b662efe3..1432d1c5b1 100644
--- a/accel/tcg/tcg-accel-ops.c
+++ b/accel/tcg/tcg-accel-ops.c
@@ -197,6 +197,11 @@ static inline void tcg_remove_all_breakpoints(CPUState *cpu)
     cpu_watchpoint_remove_all(cpu, BP_GDB);
 }
 
+static int64_t tcg_get_virtual_clock(void)
+{
+    return cpu_get_clock();
+}
+
 static void tcg_accel_ops_init(AccelOpsClass *ops)
 {
     if (qemu_tcg_mttcg_enabled()) {
@@ -212,6 +217,7 @@ static void tcg_accel_ops_init(AccelOpsClass *ops)
             ops->get_virtual_clock = icount_get;
             ops->get_elapsed_ticks = icount_get;
         } else {
+            ops->get_virtual_clock = tcg_get_virtual_clock;
             ops->handle_interrupt = tcg_handle_interrupt;
         }
     }
-- 
2.39.5



  reply	other threads:[~2025-04-03 11:40 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-03 11:38 [PATCH 0/2] add explicit virtual time callback for plugins Alex Bennée
2025-04-03 11:38 ` Alex Bennée [this message]
2025-04-03 18:10   ` [PATCH 1/2] accel/tcg: add get_virtual_clock for TCG Pierrick Bouvier
2025-04-08  8:20   ` Mark Burton
2025-04-08  8:49     ` Alex Bennée
2025-04-08  9:34       ` Mark Burton
2025-04-03 11:38 ` [PATCH 2/2] plugins: add qemu_plugin_register_time_cb support Alex Bennée
2025-04-03 18:14   ` Pierrick Bouvier

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