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Re: [Qemu-devel] [PATCH v7 1/4] isapc: Fix non-KVM qemu boot (read/write
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From: |
Kevin O'Connor |
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Subject: |
Re: [Qemu-devel] [PATCH v7 1/4] isapc: Fix non-KVM qemu boot (read/write memory for isapc BIOS) |
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Date: |
Thu, 30 May 2013 22:06:12 -0400 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Wed, May 29, 2013 at 01:27:24AM -0700, Jordan Justen wrote:
> The isapc machine with seabios currently requires the BIOS region
> to be read/write memory rather than read-only memory.
>
> KVM currently cannot support the BIOS as a ROM region, but qemu
> in non-KVM mode can. Based on this, isapc machine currently only
> works with KVM.
>
> To work-around this isapc issue, this change avoids marking the
> BIOS as readonly for isapc.
How about changing the code to always make the ROM read/write (instead
of doing it only on isapc). Currently, if the rom is marked as
read-only, then SeaBIOS makes it read/write as the first thing it
does. So, making it read-only doesn't really serve any purpose.
-Kevin
[Qemu-devel] [PATCH v7 4/4] pc_sysfw: allow flash (-pflash) memory to be used with KVM, Jordan Justen, 2013/05/29
[Qemu-devel] [PATCH v7 3/4] kvm: support using KVM_MEM_READONLY flag for regions, Jordan Justen, 2013/05/29
[Qemu-devel] [PATCH v7 2/4] kvm: add kvm_readonly_mem_enabled, Jordan Justen, 2013/05/29
Re: [Qemu-devel] [PATCH v7 0/4] KVM flash memory support, Anthony Liguori, 2013/05/31