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Re: [Qemu-devel] file_ram_alloc: unify mem-path, mem-prealloc error hand
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From: |
Marcelo Tosatti |
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Subject: |
Re: [Qemu-devel] file_ram_alloc: unify mem-path, mem-prealloc error handling |
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Date: |
Tue, 4 Feb 2014 13:43:14 -0500 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Feb 04, 2014 at 01:41:53PM -0500, Marcelo Tosatti wrote:
>
> -mem-prealloc asks to preallocate memory residing on -mem-path path.
>
> Currently QEMU exits in case:
>
> - Memory file has been created but allocation via explicit write
> fails.
>
> And it fallbacks to malloc in case:
> - Querying huge page size fails.
> - Lack of sync MMU support.
> - Open fails.
> - mmap fails.
>
> Have the same behaviour for all cases: fail in case -mem-path and
> -mem-prealloc are specified for regions where the requested size is
> suitable for hugepages.
>
> Signed-off-by: Marcelo Tosatti <address@hidden>
Forgot uq/master on the subject (but its aimed for that tree).