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Re: [PATCH v4 3/6] x86/monitor: wrap monitor_op under CONFIG_VM_EVENT
- To: Penny Zheng <Penny.Zheng@xxxxxxx>
- From: Tamas K Lengyel <tamas@xxxxxxxxxxxxx>
- Date: Fri, 16 Jan 2026 18:19:00 -0500
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, jason.andryuk@xxxxxxx, ray.huang@xxxxxxx, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>, Petre Pircalabu <ppircalabu@xxxxxxxxxxxxxxx>
- Delivery-date: Fri, 16 Jan 2026 23:19:59 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Feature monitor_op is based on vm event subsystem, so monitor.o shall be
wrapped under CONFIG_VM_EVENT.
The following functions are only invoked by monitor-op, so they all shall be
wrapped with CONFIG_VM_EVENT (otherwise they will become unreachable and
violate Misra rule 2.1 when VM_EVENT=n):
- hvm_enable_msr_interception
- hvm_function_table.enable_msr_interception
- hvm_has_set_descriptor_access_existing
- hvm_function_table.set_descriptor_access_existi
- arch_monitor_get_capabilities
Function monitored_msr() still needs a stub to pass compilation when
VM_EVENT=n.
Signed-off-by: Penny Zheng <Penny.Zheng@xxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
Reviewed-by: Jason Andryuk <jason.andryuk@xxxxxxx>
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