On 2020/4/17 下午4:29, Michael S. Tsirkin wrote:
On Fri, Apr 17, 2020 at 03:36:52PM +0800, Jason Wang wrote:
On 2020/4/17 下午2:33, Michael S. Tsirkin wrote:
On Fri, Apr 17, 2020 at 11:12:14AM +0800, Jason Wang wrote:
On 2020/4/17 上午6:55, Michael S. Tsirkin wrote:
On Wed, Apr 15, 2020 at 10:43:56AM +0800, Jason Wang wrote:
We try to keep the defconfig untouched after decoupling CONFIG_VHOST
out of CONFIG_VIRTUALIZATION in commit 20c384f1ea1a
("vhost: refine vhost and vringh kconfig") by enabling VHOST_MENU by
default. Then the defconfigs can keep enabling CONFIG_VHOST_NET
without the caring of CONFIG_VHOST.
But this will leave a "CONFIG_VHOST_MENU=y" in all defconfigs and even
for the ones that doesn't want vhost. So it actually shifts the
burdens to the maintainers of all other to add "CONFIG_VHOST_MENU is
not set". So this patch tries to enable CONFIG_VHOST explicitly in
defconfigs that enables CONFIG_VHOST_NET and CONFIG_VHOST_VSOCK.
Acked-by: Christian Borntraeger<borntraeger@xxxxxxxxxx> (s390)
Acked-by: Michael Ellerman<mpe@xxxxxxxxxxxxxx> (powerpc)
Cc: Thomas Bogendoerfer<tsbogend@xxxxxxxxxxxxxxxx>
Cc: Benjamin Herrenschmidt<benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras<paulus@xxxxxxxxx>
Cc: Michael Ellerman<mpe@xxxxxxxxxxxxxx>
Cc: Heiko Carstens<heiko.carstens@xxxxxxxxxx>
Cc: Vasily Gorbik<gor@xxxxxxxxxxxxx>
Cc: Christian Borntraeger<borntraeger@xxxxxxxxxx>
Reported-by: Geert Uytterhoeven<geert@xxxxxxxxxxxxxx>
Signed-off-by: Jason Wang<jasowang@xxxxxxxxxx>
I rebased this on top of OABI fix since that
seems more orgent to fix.
Pushed to my vhost branch pls take a look and
if possible test.
Thanks!
I test this patch by generating the defconfigs that wants vhost_net or
vhost_vsock. All looks fine.
But having CONFIG_VHOST_DPN=y may end up with the similar situation that
this patch want to address.
Maybe we can let CONFIG_VHOST depends on !ARM || AEABI then add another
menuconfig for VHOST_RING and do something similar?
Thanks
Sorry I don't understand. After this patch CONFIG_VHOST_DPN is just
an internal variable for the OABI fix. I kept it separate
so it's easy to revert for 5.8. Yes we could squash it into
VHOST directly but I don't see how that changes logic at all.
Sorry for being unclear.
I meant since it was enabled by default, "CONFIG_VHOST_DPN=y" will be left
in the defconfigs.
But who cares?
FYI, please see https://www.spinics.net/lists/kvm/msg212685.html
That does not add any code, does it?
It doesn't.
Thanks
This requires the arch maintainers to add
"CONFIG_VHOST_VDPN is not set". (Geert complains about this)
Thanks
