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Re: [Qemu-devel] [PATCH v8] hw/arm/virt: Add high MMIO PCI region, 512G


From: Alexander Graf
Subject: Re: [Qemu-devel] [PATCH v8] hw/arm/virt: Add high MMIO PCI region, 512G in size
Date: Mon, 24 Aug 2015 00:46:25 -0700
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.1.0


On 24.08.15 00:31, Pavel Fedin wrote:
> This large region is necessary for some devices like ivshmem and video cards
> 32-bit kernels can be built without LPAE support. In this case such a kernel
> will not be able to use PCI controller which has windows in high addresses.
> In order to work around the problem, "highmem" option is introduced. It
> defaults to on on, but can be manually set to off in order to be able to run
> those old 32-bit guests.
> 
> Signed-off-by: Pavel Fedin <address@hidden>

Except for the ACPI parts:

Reviewed-by: Alexander Graf <address@hidden>


Alex



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