Re: [PULL v2 1/1] loongarch: Change the UEFI loading mode to loongarch

[Philippe Mathieu-Daudé]

On 29/2/24 12:38, Song Gao wrote:
> From: Xianglai Li <lixianglai@loongson.cn>
>
> The UEFI loading mode in loongarch is very different
> from that in other architectures:loongarch's UEFI code
> is in rom, while other architectures' UEFI code is in flash.
>
> loongarch UEFI can be loaded as follows:
> -machine virt,pflash=pflash0-format
> -bios ./QEMU_EFI.fd
>
> Other architectures load UEFI using the following methods:
> -machine virt,pflash0=pflash0-format,pflash1=pflash1-format
>
> loongarch's UEFI loading method makes qemu and libvirt incompatible
> when using NVRAM, and the cost of loongarch's current loading method
> far outweighs the benefits, so we decided to use the same UEFI loading
> scheme as other architectures.

FYI I'm still trying to find a way to avoid that, planning to discuss
more with libvirt folks. Well, maybe it is a waste of my time and I
should just stop worrying / caring about this long standing issue.

> Cc: Andrea Bolognani <abologna@redhat.com>
> Cc: maobibo@loongson.cn
> Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
> Cc: Song Gao <gaosong@loongson.cn>
> Cc: zhaotianrui@loongson.cn
> Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
> Tested-by: Andrea Bolognani <abologna@redhat.com>
> Reviewed-by: Song Gao <gaosong@loongson.cn>
> Message-Id: 
> <0bd892aa9b88e0f4cc904cb70efd0251fc1cde29.1708336919.git.lixianglai@loongson.cn>
> Signed-off-by: Song Gao <gaosong@loongson.cn>
> ---
>   hw/loongarch/acpi-build.c   |  29 +++++++++--
>   hw/loongarch/virt.c         | 101 ++++++++++++++++++++++++++----------
>   include/hw/loongarch/virt.h |  10 ++--
>   3 files changed, 107 insertions(+), 33 deletions(-)