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Re: [PATCH v4 07/11] xen: add cache coloring allocator for domains
- To: Carlo Nonato <carlo.nonato@xxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 24 Jan 2023 17:58:00 +0100
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- Cc: Luca Miccio <lucmiccio@xxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Marco Solieri <marco.solieri@xxxxxxxxxxxxxxx>
- Delivery-date: Tue, 24 Jan 2023 16:58:14 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 23.01.2023 16:47, Carlo Nonato wrote:
> --- a/docs/misc/xen-command-line.pandoc
> +++ b/docs/misc/xen-command-line.pandoc
> @@ -299,6 +299,20 @@ can be maintained with the pv-shim mechanism.
> cause Xen not to use Indirect Branch Tracking even when support is
> available in hardware.
>
> +### buddy-alloc-size (arm64)
> +> `= <size>`
> +
> +> Default: `64M`
> +
> +Amount of memory reserved for the buddy allocator when colored allocator is
> +active. This options is available only when `CONFIG_LLC_COLORING` is enabled.
> +The colored allocator is meant as an alternative to the buddy allocator,
> +because its allocation policy is by definition incompatible with the
> +generic one. Since the Xen heap systems is not colored yet, we need to
> +support the coexistence of the two allocators for now. This parameter, which
> is
> +optional and for expert only, it's used to set the amount of memory reserved
> to
> +the buddy allocator.
> +
> ### clocksource (x86)
> > `= pit | hpet | acpi | tsc`
>
This hunk looks to be the result of a bad merge, as the new option should
go ahead of "cet", not after it.
Jan
|
