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From: Salil Mehta <salil.mehta@huawei.com>
To: <qemu-devel@nongnu.org>, <qemu-arm@nongnu.org>
Cc: <salil.mehta@huawei.com>, <maz@kernel.org>,
	<jean-philippe@linaro.org>, <jonathan.cameron@huawei.com>,
	<lpieralisi@kernel.org>, <peter.maydell@linaro.org>,
	<richard.henderson@linaro.org>, <imammedo@redhat.com>,
	<andrew.jones@linux.dev>, <david@redhat.com>, <philmd@linaro.org>,
	<eric.auger@redhat.com>, <oliver.upton@linux.dev>,
	<pbonzini@redhat.com>, <mst@redhat.com>, <will@kernel.org>,
	<gshan@redhat.com>, <rafael@kernel.org>, <alex.bennee@linaro.org>,
	<linux@armlinux.org.uk>, <darren@os.amperecomputing.com>,
	<ilkka@os.amperecomputing.com>, <vishnu@os.amperecomputing.com>,
	<karl.heubaum@oracle.com>, <miguel.luis@oracle.com>,
	<salil.mehta@opnsrc.net>, <zhukeqian1@huawei.com>,
	<wangxiongfeng2@huawei.com>, <wangyanan55@huawei.com>,
	<jiakernel2@gmail.com>, <maobibo@loongson.cn>,
	<lixianglai@loongson.cn>, <linuxarm@huawei.com>
Subject: [PATCH V6 9/9] gdbstub: Add helper function to unregister GDB register space
Date: Fri, 13 Oct 2023 11:51:29 +0100	[thread overview]
Message-ID: <20231013105129.25648-10-salil.mehta@huawei.com> (raw)
Message-ID: <20231013105129.0rr-bfcBJa2IXVybxFwzBKhS6_USFkdGFOSFD9nKokw@z> (raw)
In-Reply-To: <20231013105129.25648-1-salil.mehta@huawei.com>

Add common function to help unregister the GDB register space. This shall be
done in context to the CPU unrealization.

Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Tested-by: Vishnu Pajjuri <vishnu@os.amperecomputing.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Tested-by: Xianglai Li <lixianglai@loongson.cn>
---
 gdbstub/gdbstub.c      | 12 ++++++++++++
 include/exec/gdbstub.h |  5 +++++
 2 files changed, 17 insertions(+)

diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c
index b1532118d1..7bd6d45857 100644
--- a/gdbstub/gdbstub.c
+++ b/gdbstub/gdbstub.c
@@ -498,6 +498,18 @@ void gdb_register_coprocessor(CPUState *cpu,
     }
 }
 
+void gdb_unregister_coprocessor_all(CPUState *cpu)
+{
+    /*
+     * Safe to nuke everything. GDBRegisterState::xml is static const char so
+     * it won't be freed
+     */
+    g_array_free(cpu->gdb_regs, true);
+
+    cpu->gdb_regs = NULL;
+    cpu->gdb_num_g_regs = 0;
+}
+
 static void gdb_process_breakpoint_remove_all(GDBProcess *p)
 {
     CPUState *cpu = gdb_get_first_cpu_in_process(p);
diff --git a/include/exec/gdbstub.h b/include/exec/gdbstub.h
index 1a01c35f8e..3744257ed3 100644
--- a/include/exec/gdbstub.h
+++ b/include/exec/gdbstub.h
@@ -32,6 +32,11 @@ typedef int (*gdb_set_reg_cb)(CPUArchState *env, uint8_t *buf, int reg);
 void gdb_register_coprocessor(CPUState *cpu,
                               gdb_get_reg_cb get_reg, gdb_set_reg_cb set_reg,
                               int num_regs, const char *xml, int g_pos);
+/**
+ * gdb_unregister_coprocessor_all() - unregisters supplemental set of registers
+ * @cpu - the CPU associated with registers
+ */
+void gdb_unregister_coprocessor_all(CPUState *cpu);
 
 /**
  * gdbserver_start: start the gdb server
-- 
2.34.1



  parent reply	other threads:[~2023-10-13 10:54 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-13 10:51 [PATCH V6 0/9] Add architecture agnostic code to support vCPU Hotplug Salil Mehta via
2023-10-13 10:51 ` Salil Mehta
2023-10-13 10:51 ` [PATCH V6 1/9] accel/kvm: Extract common KVM vCPU {creation, parking} code Salil Mehta via
2023-10-13 10:51   ` Salil Mehta
2023-10-27 12:56   ` [PATCH V6 1/9] accel/kvm: Extract common KVM vCPU {creation,parking} code Igor Mammedov
2023-11-06 14:37     ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 2/9] hw/acpi: Move CPU ctrl-dev MMIO region len macro to common header file Salil Mehta via
2023-10-13 10:51   ` Salil Mehta
2023-10-13 10:51 ` [PATCH V6 3/9] hw/acpi: Add ACPI CPU hotplug init stub Salil Mehta via
2023-10-13 10:51   ` Salil Mehta
2023-10-27 13:05   ` Igor Mammedov
2023-11-06 14:40     ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 4/9] hw/acpi: Init GED framework with CPU hotplug events Salil Mehta via
2023-10-13 10:51   ` Salil Mehta
2023-10-19 10:16   ` Alex Bennée
2023-10-19 10:27     ` Salil Mehta via
2023-10-19 10:27       ` Salil Mehta
2023-10-27 14:08   ` Igor Mammedov
2023-11-13 17:36     ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 5/9] hw/acpi: Update CPUs AML with cpu-(ctrl)dev change Salil Mehta via
2023-10-13 10:51   ` Salil Mehta
2023-10-27 13:46   ` Igor Mammedov
2023-11-13 17:45     ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 6/9] hw/acpi: Update GED _EVT method AML with CPU scan Salil Mehta via
2023-10-13 10:51   ` Salil Mehta
2023-10-13 10:51 ` [PATCH V6 7/9] hw/acpi: Update ACPI GED framework to support vCPU Hotplug Salil Mehta via
2023-10-13 10:51   ` Salil Mehta
2023-10-27 13:18   ` Igor Mammedov
2023-11-08 10:58     ` Salil Mehta via
2023-10-13 10:51 ` [PATCH V6 8/9] physmem: Add helper function to destroy CPU AddressSpace Salil Mehta via
2023-10-13 10:51   ` Salil Mehta
2023-10-13 10:51 ` Salil Mehta via [this message]
2023-10-13 10:51   ` [PATCH V6 9/9] gdbstub: Add helper function to unregister GDB register space Salil Mehta
2023-10-13 16:33 ` [PATCH V6 0/9] Add architecture agnostic code to support vCPU Hotplug Miguel Luis
2023-10-16  9:52   ` Salil Mehta via
2023-10-16  9:52     ` Salil Mehta
2023-10-16 10:01     ` Miguel Luis
2023-10-16 10:09       ` Salil Mehta via
2023-10-16 10:09         ` Salil Mehta
2023-10-19  9:50       ` Miguel Luis
2023-10-19  9:04 ` Shaoqin Huang
2023-10-19  9:34   ` Salil Mehta via
2023-10-19  9:34     ` Salil Mehta
2023-10-20  3:30     ` Shaoqin Huang
2023-10-26 12:41 ` Igor Mammedov
2023-10-27 10:23   ` Salil Mehta via
2023-10-27 10:23     ` Salil Mehta

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