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[PATCH v8 16/26] emul/ns16x50: add Kconfig options
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: dmukhin@xxxxxxxx
- Date: Wed, 11 Nov 2026 11:47:50 -0800
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- Cc: andrew.cooper3@xxxxxxxxxx, anthony.perard@xxxxxxxxxx, jbeulich@xxxxxxxx, julien@xxxxxxx, michal.orzel@xxxxxxx, roger@xxxxxxxxxxxxxx, sstabellini@xxxxxxxxxx, xakep.amatop@xxxxxxxxx, dmukhin@xxxxxxx, Denis Mukhin <dmukhin@xxxxxxxx>
- Delivery-date: Wed, 11 Nov 2026 19:49:04 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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From: Denis Mukhin <dmukhin@xxxxxxxx>
Add initial Kconfig options configure NS16550-capable emulator.
Signed-off-by: Denis Mukhin <dmukhin@xxxxxxxx>
---
xen/common/emul/vuart/Kconfig | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/xen/common/emul/vuart/Kconfig b/xen/common/emul/vuart/Kconfig
index ce1b976b7da7..353a6325180e 100644
--- a/xen/common/emul/vuart/Kconfig
+++ b/xen/common/emul/vuart/Kconfig
@@ -3,4 +3,24 @@ config VUART_FRAMEWORK
menu "UART Emulation"
+config VUART_NS16X50
+ bool "NS16550-compatible UART Emulator" if EXPERT
+ depends on X86 && HVM
+ select VUART_FRAMEWORK
+ help
+ In-hypervisor NS16550-compatible UART emulation.
+
+ On x86, only one legacy PC COM port is emulated for domain with a
+ certain ID (set via 'vuart=<domid>:<compatible>[,com[1-4]]' command
line
+ setting).
+
+ This is strictly for testing purposes (such as early HVM guest
console),
+ and not appropriate for use in production.
+
+config VUART_NS16X50_DEBUG
+ bool "Development: NS16550-compatible UART Emulator Debugging"
+ depends on VUART_NS16X50 && DEBUG
+ help
+ Enable development debugging.
+
endmenu
--
2.56.0
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