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Re: [PATCH v4 6/8] tools/xl: enable NS16550-compatible UART emulator for HVM (x86)
- To: dmkhn@xxxxxxxxx
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 4 Aug 2025 12:54:27 +0200
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- Cc: andrew.cooper3@xxxxxxxxxx, anthony.perard@xxxxxxxxxx, julien@xxxxxxx, michal.orzel@xxxxxxx, roger.pau@xxxxxxxxxx, sstabellini@xxxxxxxxxx, dmukhin@xxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 04 Aug 2025 10:54:28 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 31.07.2025 21:22, dmkhn@xxxxxxxxx wrote:
> --- a/xen/arch/x86/domain.c
> +++ b/xen/arch/x86/domain.c
> @@ -780,9 +780,10 @@ static bool emulation_flags_ok(const struct domain *d,
> uint32_t emflags)
> /* HVM domU */
> {
> .caps = CAP_HVM | CAP_DOMU,
> - .min = X86_EMU_ALL & ~(X86_EMU_VPCI | X86_EMU_USE_PIRQ),
> + .min = X86_EMU_ALL & ~(X86_EMU_VPCI | X86_EMU_USE_PIRQ |
> + X86_EMU_NS16550),
> /* HVM PIRQ feature is user-selectable. */
> - .opt = X86_EMU_USE_PIRQ,
> + .opt = X86_EMU_USE_PIRQ | X86_EMU_NS16550,
Rendering the comment partly stale.
Jan
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