On 11/12/2018 14:57, Liam Merwick wrote:
On 11/12/2018 14:01, Stefan Hajnoczi wrote:
On Wed, Dec 05, 2018 at 10:37:24PM +0000, Liam Merwick wrote:
From: Liam Merwick <liam.merw...@oracle.com>
The x86/HVM direct boot ABI permits Qemu to be able to boot directly
into the uncompressed Linux kernel binary without the need to run
firmware.
https://xenbits.xen.org/docs/unstable/misc/pvh.html
This commit adds the header file that defines the start_info struct
that needs to be populated in order to use this ABI.
Signed-off-by: Maran Wilson <maran.wil...@oracle.com>
Signed-off-by: Liam Merwick <liam.merw...@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com>
---
include/hw/xen/start_info.h | 146
++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 146 insertions(+)
create mode 100644 include/hw/xen/start_info.h
Does it make sense to bring in Linux
include/xen/interface/hvm/start_info.h via QEMU's
include/standard-headers/?
QEMU has a script in scripts/update-linux-header.sh for syncing Linux
headers into include/standard-headers/. This makes it easy to keep
Linux header files up-to-date. We basically treat files in
include/standard-headers/ as auto-generated.
If you define start_info.h yourself without using
include/standard-headers/, then it won't be synced with Linux.
That does seem better. I will make that change.
When attempting to implement this, I found the canonical copy of this
header file is actually in Xen and the Linux copy is kept in sync with
that. Also, 'make headers_install' doesn't install those Xen headers.
Instead I updated the commit comment to mention the canonical copy
location. This file isn't expected to change much so I think keeping it
in sync in future shouldn't be onerous.
Regards,
Liam
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