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Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-bel
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option |
Date: |
Thu, 14 Jan 2016 16:45:53 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.0 |
On 01/08/2016 05:58 AM, Gerd Hoffmann wrote:
> This patch extends the functionality of the max-ram-below-4g option
> to also allow increasing lowmem. Use case: Give as much memory as
> possible to legacy non-PAE guests.
>
> While being at it also rework the lowmem calculation logic and add a
> longish comment describing how it works and what the compatibility
> constrains are.
s/constrains/constraints/
>
> Signed-off-by: Gerd Hoffmann <address@hidden>
> ---
> + if (lowmem & ((1ULL << 30) - 1)) {
> + error_report("Warning: Large machine and max_ram_below_4g "
> + "(%" PRIu64 ") not a multiple of 1G; "
> + "possible bad performance.",
No trailing '.' in error_report(), please.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Gerd Hoffmann, 2016/01/08
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Marcel Apfelbaum, 2016/01/11
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option,
Eric Blake <=
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Eduardo Habkost, 2016/01/19
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Gerd Hoffmann, 2016/01/20
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Eduardo Habkost, 2016/01/20
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Eduardo Habkost, 2016/01/20
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Michael S. Tsirkin, 2016/01/20
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Gerd Hoffmann, 2016/01/21
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Michael S. Tsirkin, 2016/01/21
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Gerd Hoffmann, 2016/01/22
- Re: [Qemu-devel] [PATCH v2] pc: allow raising low memory via max-ram-below-4g option, Michael S. Tsirkin, 2016/01/24