Re: Using Restricted DMA for virtio-pci

2025-03-30 Thread Michael S. Tsirkin
On Sun, Mar 30, 2025 at 10:27:58PM +0100, David Woodhouse wrote: > On 30 March 2025 18:06:47 BST, "Michael S. Tsirkin" wrote: > >> It's basically just allowing us to expose through PCI, what I believe > >> we can already do for virtio in DT. > > > >I am not saying I am against this extension. > >T

Re: Using Restricted DMA for virtio-pci

2025-03-30 Thread David Woodhouse
On 30 March 2025 18:06:47 BST, "Michael S. Tsirkin" wrote: >> It's basically just allowing us to expose through PCI, what I believe >> we can already do for virtio in DT. > >I am not saying I am against this extension. >The idea to restrict DMA has a lot of merit outside pkvm. >For example, with a

Re: Using Restricted DMA for virtio-pci

2025-03-30 Thread David Woodhouse
On 30 March 2025 17:59:13 BST, "Michael S. Tsirkin" wrote: >On Sun, Mar 30, 2025 at 04:07:56PM +0100, David Woodhouse wrote: >> On Sun, 2025-03-30 at 09:42 -0400, Michael S. Tsirkin wrote: >> > On Fri, Mar 28, 2025 at 05:40:41PM +, David Woodhouse wrote: >> > > On Fri, 2025-03-21 at 18:42 +000

Re: Using Restricted DMA for virtio-pci

2025-03-30 Thread Michael S. Tsirkin
On Fri, Mar 28, 2025 at 05:40:41PM +, David Woodhouse wrote: > On Fri, 2025-03-21 at 18:42 +, David Woodhouse wrote: > > On Fri, 2025-03-21 at 14:32 -0400, Michael S. Tsirkin wrote: > > > On Fri, Mar 21, 2025 at 03:38:10PM +, David Woodhouse wrote: > > > > On Tue, 2021-02-09 at 14:21 +0

[PATCH] powerpc/defconfigs: Set HZ=1000 on ppc64 and powernv defconfigs

2025-03-30 Thread Madadi Vineeth Reddy
Commit 030bdc3fd080 ("powerpc/defconfigs: Set HZ=100 on pseries and ppc64 defconfigs") lowered CONFIG_HZ from 250 to 100, citing reduced need for a higher tick rate due to high-resolution timers and concerns about timer interrupt overhead and cascading effects in the timer wheel. However, improvem

Re: [PATCH 1/4] i2c: pasemi: Add registers bits and switch to BIT()

2025-03-30 Thread Sven Peter
On Sat, Mar 22, 2025, at 14:23, Andy Shevchenko wrote: > Thu, Mar 20, 2025 at 01:23:25AM +0100, Andi Shyti kirjoitti: >> Hi Sven, >> >> On Sat, Feb 22, 2025 at 01:38:33PM +, Sven Peter via B4 Relay wrote: >> > From: Sven Peter >> > >> > Add the missing register bits to the defines and also s