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Re: [PATCH v4 01/13] x86/boot: add cmdline to struct boot_domain
- To: Alejandro Vallejo <agarciav@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 17 Apr 2025 16:54:24 +0200
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- Cc: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Jason Andryuk <jason.andryuk@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 17 Apr 2025 14:54:41 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 17.04.2025 14:48, Alejandro Vallejo wrote:
> From: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>
>
> Add a container for the "cooked" command line for a domain. This
> provides for the backing memory to be directly associated with the
> domain being constructed. This is done in anticipation that the domain
> construction path may need to be invoked multiple times, thus ensuring
> each instance had a distinct memory allocation.
>
> Signed-off-by: Daniel P. Smith <dpsmith@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Jason Andryuk <jason.andryuk@xxxxxxx>
> Signed-off-by: Alejandro Vallejo <agarciav@xxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
preferably with ...
> --- a/xen/arch/x86/hvm/dom0_build.c
> +++ b/xen/arch/x86/hvm/dom0_build.c
> @@ -653,7 +653,7 @@ static int __init pvh_load_kernel(
> void *image_start = image_base + image->headroom;
> unsigned long image_len = image->size;
> unsigned long initrd_len = initrd ? initrd->size : 0;
> - const char *cmdline = image->cmdline_pa ? __va(image->cmdline_pa) : NULL;
> + unsigned long cmdline_len = bd->cmdline ? strlen(bd->cmdline) + 1 : 0;
... this becoming either size_t (as you have it elsewhere) or unsigned int.
Happy to make the adjustment while committing, so long as you agree with
either of the suggested variants.
Jan
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