On 25.10.23 12:34, Borislav Petkov wrote:
On Thu, Oct 19, 2023 at 11:15:16AM +0200, Juergen Gross wrote:
+/* Low-level backend functions usable from alternative code replacements. */
+DEFINE_ASM_FUNC(x86_nop, "", .entry.text);
+EXPORT_SYMBOL_GPL(x86_nop);
This is all x86 code so you don't real
On 10/27/2023 2:31 AM, Jason Wang wrote:
> On Fri, Oct 27, 2023 at 4:07 AM Steve Sistare
> wrote:
>>
>> mlx5_vdpa does not preserve userland's view of vring base for the control
>> queue in the following sequence:
>>
>> ioctl VHOST_SET_VRING_BASE
>> ioctl VHOST_VDPA_SET_STATUS VIRTIO_CONFIG_S_DRI
As a preparation for replacing paravirt patching completely by
alternative patching, move some backend functions and #defines to
alternative code and header.
Signed-off-by: Juergen Gross
---
V4:
- rename x86_nop() to nop_func() and x86_BUG() to BUG_func() (Boris
Petkov)
---
arch/x86/include/as
This is a small series getting rid of paravirt patching by switching
completely to alternative patching for the same functionality.
The basic idea is to add the capability to switch from indirect to
direct calls via a special alternative patching option.
This removes _some_ of the paravirt macro
Introduce the macro ALT_NOT_XEN as a short form of
ALT_NOT(X86_FEATURE_XENPV).
Suggested-by: Peter Zijlstra (Intel)
Signed-off-by: Juergen Gross
---
V3:
- split off from next patch
---
arch/x86/include/asm/paravirt.h | 42 ---
arch/x86/include/asm/paravirt_types.h
Now that paravirt is using the alternatives patching infrastructure,
remove the paravirt patching code.
Signed-off-by: Juergen Gross
Acked-by: Peter Zijlstra (Intel)
---
arch/x86/include/asm/paravirt.h | 18
arch/x86/include/asm/paravirt_types.h | 40
arch/x86/in
Instead of stacking alternative and paravirt patching, use the new
ALT_FLAG_CALL flag to switch those mixed calls to pure alternative
handling.
This eliminates the need to be careful regarding the sequence of
alternative and paravirt patching.
For call depth tracking callthunks_setup() needs to b
On 29/10/2023 22:17, Michael S. Tsirkin wrote:
On Sun, Oct 29, 2023 at 05:59:48PM +0200, Yishai Hadas wrote:
Initialize the supported admin commands upon activating the admin queue.
The supported commands are saved as part of the admin queue context, it
will be used by the next patches from thi
> From: Michael S. Tsirkin
> Sent: Monday, October 30, 2023 1:53 AM
>
> On Sun, Oct 29, 2023 at 05:59:45PM +0200, Yishai Hadas wrote:
> > From: Feng Liu
> >
> > Introduce support for the admin virtqueue. By negotiating
> > VIRTIO_F_ADMIN_VQ feature, driver detects capability and creates one
>
On Mon, Oct 30, 2023 at 05:27:50PM +0200, Yishai Hadas wrote:
> On 29/10/2023 22:17, Michael S. Tsirkin wrote:
> > On Sun, Oct 29, 2023 at 05:59:48PM +0200, Yishai Hadas wrote:
> > > Initialize the supported admin commands upon activating the admin queue.
> > >
> > > The supported commands are sav
On Mon, Oct 30, 2023 at 03:51:40PM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Monday, October 30, 2023 1:53 AM
> >
> > On Sun, Oct 29, 2023 at 05:59:45PM +0200, Yishai Hadas wrote:
> > > From: Feng Liu
> > >
> > > Introduce support for the admin virtqueue. By negotia
On 30/10/2023 17:57, Michael S. Tsirkin wrote:
On Mon, Oct 30, 2023 at 05:27:50PM +0200, Yishai Hadas wrote:
On 29/10/2023 22:17, Michael S. Tsirkin wrote:
On Sun, Oct 29, 2023 at 05:59:48PM +0200, Yishai Hadas wrote:
Initialize the supported admin commands upon activating the admin queue.
Th
On 10/30/2023 11:12 AM, Eugenio Perez Martin wrote:
> On Thu, Oct 26, 2023 at 10:09 PM Steve Sistare
> wrote:
>>
>> mlx5_vdpa does not preserve userland's view of vring base for the control
>> queue in the following sequence:
>>
>> ioctl VHOST_SET_VRING_BASE
>> ioctl VHOST_VDPA_SET_STATUS VIRTIO_C
> From: Michael S. Tsirkin
> Sent: Monday, October 30, 2023 9:29 PM
> On Mon, Oct 30, 2023 at 03:51:40PM +, Parav Pandit wrote:
> >
> >
> > > From: Michael S. Tsirkin
> > > Sent: Monday, October 30, 2023 1:53 AM
> > >
> > > On Sun, Oct 29, 2023 at 05:59:45PM +0200, Yishai Hadas wrote:
> >
On Mon, Oct 30, 2023 at 06:06:45PM +0200, Yishai Hadas wrote:
> On 30/10/2023 17:57, Michael S. Tsirkin wrote:
> > On Mon, Oct 30, 2023 at 05:27:50PM +0200, Yishai Hadas wrote:
> > > On 29/10/2023 22:17, Michael S. Tsirkin wrote:
> > > > On Sun, Oct 29, 2023 at 05:59:48PM +0200, Yishai Hadas wrote:
On Mon, Oct 30, 2023 at 06:10:06PM +, Parav Pandit wrote:
>
>
> > From: Michael S. Tsirkin
> > Sent: Monday, October 30, 2023 9:29 PM
> > On Mon, Oct 30, 2023 at 03:51:40PM +, Parav Pandit wrote:
> > >
> > >
> > > > From: Michael S. Tsirkin
> > > > Sent: Monday, October 30, 2023 1:53 AM
On Mon, Oct 30, 2023 at 10:06 PM Steven Sistare
wrote:
>
> On 10/27/2023 2:31 AM, Jason Wang wrote:
> > On Fri, Oct 27, 2023 at 4:07 AM Steve Sistare
> > wrote:
> >>
> >> mlx5_vdpa does not preserve userland's view of vring base for the control
> >> queue in the following sequence:
> >>
> >> ioc
> From: Michael S. Tsirkin
> Sent: Tuesday, October 31, 2023 5:02 AM
>
> On Mon, Oct 30, 2023 at 06:10:06PM +, Parav Pandit wrote:
> >
> >
> > > From: Michael S. Tsirkin
> > > Sent: Monday, October 30, 2023 9:29 PM On Mon, Oct 30, 2023 at
> > > 03:51:40PM +, Parav Pandit wrote:
> > >
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