From: Stefan Hajnoczi <stefanha@gmail.com>
To: Stefano Garzarella <sgarzare@redhat.com>
Cc: qemu-devel@nongnu.org, Eduardo Habkost <ehabkost@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
George Kennedy <george.kennedy@oracle.com>,
Gerd Hoffmann <kraxel@redhat.com>,
Marc-Andre Lureau <marcandre.lureau@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Maran Wilson <maran.wilson@oracle.com>,
Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] [PATCH 3/4] optionrom: add new PVH option rom
Date: Fri, 11 Jan 2019 16:31:55 +0000 [thread overview]
Message-ID: <20190111163155.GD14776@stefanha-x1.localdomain> (raw)
In-Reply-To: <20190111131836.107549-4-sgarzare@redhat.com>
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On Fri, Jan 11, 2019 at 02:18:35PM +0100, Stefano Garzarella wrote:
> The new pvh.bin option rom can be used with SeaBIOS to boot
> uncompressed kernel using the x86/HVM direct boot ABI.
>
> pvh.S contains the entry point of the option rom. It runs
> in real mode, loads the e820 table querying the BIOS, and
> then it switches to 32bit protect mode and jump to the
> pvh_load_kernel() written in pvh_main.c.
> pvh_load_kernel() loads the cmdline and kernel entry_point
> using fw_cfg, then it looks for RSDP, fills the
> hvm_start_info required by x86/HVM ABI, and finally jumps
> to the kernel entry_point.
>
> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
> ---
> pc-bios/optionrom/Makefile | 5 +-
> pc-bios/optionrom/pvh.S | 200 +++++++++++++++++++++++++++++++++++
> pc-bios/optionrom/pvh_main.c | 117 ++++++++++++++++++++
> 3 files changed, 321 insertions(+), 1 deletion(-)
> create mode 100644 pc-bios/optionrom/pvh.S
> create mode 100644 pc-bios/optionrom/pvh_main.c
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
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next prev parent reply other threads:[~2019-01-11 16:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-11 13:18 [Qemu-devel] [PATCH 0/4] pvh: add new PVH option rom Stefano Garzarella
2019-01-11 13:18 ` [Qemu-devel] [PATCH 1/4] linuxboot_dma: remove duplicate definitions of FW_CFG Stefano Garzarella
2019-01-11 16:32 ` Stefan Hajnoczi
2019-01-11 13:18 ` [Qemu-devel] [PATCH 2/4] linuxboot_dma: move common functions in a new header Stefano Garzarella
2019-01-11 16:26 ` Stefan Hajnoczi
2019-01-11 17:42 ` Stefano Garzarella
2019-01-11 17:48 ` Michael S. Tsirkin
2019-01-11 17:55 ` Eric Blake
2019-01-12 18:25 ` Stefano Garzarella
2019-01-13 2:31 ` Eric Blake
2019-01-12 18:18 ` Stefano Garzarella
2019-01-11 13:18 ` [Qemu-devel] [PATCH 3/4] optionrom: add new PVH option rom Stefano Garzarella
2019-01-11 16:31 ` Stefan Hajnoczi [this message]
2019-01-11 13:18 ` [Qemu-devel] [PATCH 4/4] hw/i386/pc: use " Stefano Garzarella
2019-01-11 16:34 ` Stefan Hajnoczi
2019-01-14 9:48 ` Stefano Garzarella
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