Le 15/06/2019 à 16:36, Andreas Schwab a écrit :
On Jun 15 2019, Christophe Leroy wrote:
Andreas Schwab a écrit :
If STRICT_KERNEL_RWX is disabled, never use the MMU to mark initmen
nonexecutable.
I dont understand, can you elaborate ?
It breaks suspend.
Ok, but we need to explain w
Le 15/06/2019 à 13:23, Andreas Schwab a écrit :
This breaks suspend (or resume) on the iBook G4. no_console_suspend
doesn't give any clues, the display just stays dark.
After a quick look at the suspend functions, I have the feeling that
those functions only store and restore BATs 0 to 3.
Le 15/06/2019 à 14:28, Andreas Schwab a écrit :
On Feb 21 2019, Christophe Leroy wrote:
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index a000768a5cc9..6e56a6240bfa 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -353,7 +353,10 @@
On Jun 16 2019, christophe leroy wrote:
> Le 15/06/2019 à 14:28, Andreas Schwab a écrit :
>> On Feb 21 2019, Christophe Leroy wrote:
>>
>>> diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
>>> index a000768a5cc9..6e56a6240bfa 100644
>>> --- a/arch/powerpc/mm/pgtable_32.c
On Jun 16 2019, christophe leroy wrote:
> If any of registers IBATs 4 to 7 are used
Nope.
Andreas.
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
On Jun 16 2019, christophe leroy wrote:
> If any of registers IBATs 4 to 7 are used, could you adjust
> CONFIG_ETEXT_SHIFT so that only IBATs 0 to 3 be used, and check if
> suspend/resume works when IBATs 4 to 7 are not used ?
I forgot to remove my patch. With only 0-3 used, suspend/resume work
On Tue, 2019-06-11 at 15:47:20 UTC, Christophe Leroy wrote:
> The patch referenced below moved the loading of segment registers
> out of load_up_mmu() in order to do it earlier in the boot sequence.
> However, the secondary CPU still needs it to be done when loading up
> the MMU.
>
> Reported-by:
On Thu, 2019-05-23 at 08:39:27 UTC, Christophe Leroy wrote:
> Build failure was introduced by the commit identified below,
> due to missed macro expension leading to wrong called function's name.
>
> arch/powerpc/kernel/head_fsl_booke.o: In function `SystemCall':
> arch/powerpc/kernel/head_fsl_boo
On Thu, 2019-06-13 at 13:52:30 UTC, Christophe Leroy wrote:
> Use r10 instead of r9 to calculate CPU offset as r9 contains
> the value from SRR1 which is used later.
>
> Fixes: 1a4b739bbb4f ("powerpc/32: implement fast entry for syscalls on BOOKE")
> Signed-off-by: Christophe Leroy
Applied to po
Hi Nayna,
>> I guess I also somewhat object to calling it a 'backend' if we're using
>> it as a version scheme. I think the skiboot storage backends are true
>> backends - they provide different implementations of the same
>> functionality with the same API, but this seems like you're using it to
Radu Rendec writes:
> Hi Everyone,
>
> I'm following up on the ptrace() problem that I reported a few days ago.
> I believe my version of the code handles all cases correctly. While the
> problem essentially boils down to dividing the fpidx by 2 on PPC32, it
> becomes tricky when the same code mu
On Thu, Jun 06, 2019 at 02:36:09PM -0300, Claudio Carvalho wrote:
> From: Ram Pai
>
> Add the ucall() function, which can be used to make ultravisor calls
> with varied number of in and out arguments. Ultravisor calls can be made
> from the host or guests.
>
> This copies the implementation of p
On Mon, 2019-06-17 at 11:19 +1000, Daniel Axtens wrote:
> Radu Rendec <
> radu.ren...@gmail.com
> > writes:
>
> > Hi Everyone,
> >
> > I'm following up on the ptrace() problem that I reported a few days ago.
> > I believe my version of the code handles all cases correctly. While the
> > problem e
On Tue, May 28, 2019 at 12:19:33PM +0530, Bharata B Rao wrote:
> Add support for reset of secure guest via a new ioctl KVM_PPC_SVM_OFF.
> This ioctl will be issued by QEMU during reset and in this ioctl,
> we ask UV to terminate the guest via UV_SVM_TERMINATE ucall,
> reinitialize guest's partition
From: Alastair D'Silva
If an OpenCAPI context is to be used directly by a kernel driver, there
may not be a suitable mm to use.
The patch makes the mm parameter to ocxl_context_attach optional.
Signed-off-by: Alastair D'Silva
---
drivers/misc/ocxl/context.c | 9 ++---
drivers/misc/ocxl/l
On Tue, May 28, 2019 at 12:19:28PM +0530, Bharata B Rao wrote:
> HMM driver for KVM PPC to manage page transitions of
> secure guest via H_SVM_PAGE_IN and H_SVM_PAGE_OUT hcalls.
>
> H_SVM_PAGE_IN: Move the content of a normal page to secure page
> H_SVM_PAGE_OUT: Move the content of a secure page
On Tue, May 28, 2019 at 12:19:30PM +0530, Bharata B Rao wrote:
> H_SVM_INIT_START: Initiate securing a VM
> H_SVM_INIT_DONE: Conclude securing a VM
>
> As part of H_SVM_INIT_START register all existing memslots with the UV.
> H_SVM_INIT_DONE call by UV informs HV that transition of the guest
> to
On Tue, May 28, 2019 at 12:19:31PM +0530, Bharata B Rao wrote:
> Register the new memslot with UV during plug and unregister
> the memslot during unplug.
>
> Signed-off-by: Bharata B Rao
Acked-by: Paul Mackerras
Previously, only IBAT1 and IBAT2 were used to map kernel linear mem.
Since commit 63b2bc619565 ("powerpc/mm/32s: Use BATs for
STRICT_KERNEL_RWX"), we may have all 8 BATs used for mapping
kernel text. But the suspend/restore functions only save/restore
BATs 0 to 3, and clears BATs 4 to 7.
Make susp
On Wed, May 29, 2019 at 07:22:19PM -0300, Fabiano Rosas wrote:
> When calling the KVM_SET_GUEST_DEBUG ioctl, userspace might request
> the next instruction to be single stepped via the
> KVM_GUESTDBG_SINGLESTEP control bit of the kvm_guest_debug structure.
>
> We currently don't have support for g
ping?
On Thu, May 23, 2019 at 09:49:20AM +0200, Christoph Hellwig wrote:
> Hi all,
>
> the powerpc powernv port has a fairly large chunk of code that never
> had any upstream user. We generally strive to not keep dead code
> around, and this was affirmed at least years Maintainer summit.
>
> Ch
21 matches
Mail list logo
