On Tue, 16 Mar 2021 20:52:05 +1000, Nicholas Piggin wrote:
> Hash faults use the trap vector to decide whether this is an
> instruction or data fault. This should use the TRAP accessor
> rather than open access regs->trap.
>
> This won't cause a problem at the moment because 64s only uses
> trap f
On Thu, 11 Mar 2021 14:45:38 +0530, Ravi Bangoria wrote:
> As per ISA 3.1, prefixed instruction should not cross 64-byte
> boundary. So don't allow Uprobe on such prefixed instruction.
>
> There are two ways probed instruction is changed in mapped pages.
> First, when Uprobe is activated, it searc
On Wed, 24 Feb 2021 13:25:47 +0530, Bhaskar Chowdhury wrote:
> s/droping/dropping/
Applied to powerpc/next.
[1/1] arch: powerpc: kernel: Change droping to dropping in the file traps.c
https://git.kernel.org/powerpc/c/5c4a4802b9ac8c1acdf2250fad3f8f2d6254f9c7
cheers
On Mon, 15 Mar 2021 03:34:36 +0530, Bhaskar Chowdhury wrote:
> Trivial spelling fixes throughout the file.
Applied to powerpc/next.
[1/1] powerpc: kernel: Trivial spelling fixes throughout the file
head_fsl_booke.S
https://git.kernel.org/powerpc/c/f239873fcd953557ba9a9781d10ca95c0594e2b3
On Wed, 17 Mar 2021 14:34:13 +0530, Bhaskar Chowdhury wrote:
> s/procesing/processing/
Applied to powerpc/next.
[1/1] powerpc: kernel: Trivial typo fix in the file kgdb.c
https://git.kernel.org/powerpc/c/89f7d2927ae16ea470d29234447763826e40c6cf
cheers
On Fri, 12 Mar 2021 16:55:37 +0530, Bhaskar Chowdhury wrote:
> s/detalis/details/
Applied to powerpc/next.
[1/1] powerpc: mm: book3s64: Fix a typo in the file mmu_context.c
https://git.kernel.org/powerpc/c/7a7d744ffe87ae10ab98004d1a6ca1f691af58e1
cheers
On Mon, 15 Mar 2021 15:24:56 +0800, Yang Li wrote:
> fixed the following coccicheck:
> ./arch/powerpc/sysdev/xive/spapr.c:552:8-9: WARNING: return of 0/1 in
> function 'xive_spapr_match' with return type bool
Applied to powerpc/next.
[1/1] powerpc/xive: use true and false for bool variable
On Mon, 22 Mar 2021 08:03:07 +0530, Bhaskar Chowdhury wrote:
> s/filesytem/filesystem/
> s/symantics/semantics/
Applied to powerpc/next.
[1/1] cxl: Fix couple of spellings
https://git.kernel.org/powerpc/c/e23ecdf9fd87c547a3ac55bcebaf7df28df2fab0
cheers
On Tue, Mar 23, 2021 at 11:02:20AM +1000, Nicholas Piggin wrote:
> This will get a bit more complicated in future patches. Move it
> into the helper function.
This does change L1-visible behaviour, because now the L1 hypervisor
can see the LPCR bits that L0 is using, whereas previously it couldn't
On Tue, Mar 23, 2021 at 11:02:21AM +1000, Nicholas Piggin wrote:
> Guest LPCR depends on hardware type, and future changes will add
> restrictions based on errata and guest MMU mode. Move this logic
> to a common function and use it for the cases where the guest
> wants to update its LPCR (or the L
On Tue, Mar 23, 2021 at 11:02:22AM +1000, Nicholas Piggin wrote:
> These are already disallowed by H_SET_MODE from the guest, also disallow
> these by updating LPCR directly.
>
> AIL modes can affect the host interrupt behaviour while the guest LPCR
> value is set, so filter it here too.
>
> Sugg
On Tue, Mar 23, 2021 at 11:02:23AM +1000, Nicholas Piggin wrote:
> This bit only applies to hash partitions.
>
> Signed-off-by: Nicholas Piggin
> ---
> arch/powerpc/kvm/book3s_hv.c| 6 ++
> arch/powerpc/kvm/book3s_hv_nested.c | 3 +--
> 2 files changed, 7 insertions(+), 2 deletions(-
Paul Menzel writes:
> Am 16.03.21 um 02:09 schrieb Michael Ellerman:
>> The vio bus is a fake bus, which we use on pseries LPARs (guests) to
>> discover devices provided by the hypervisor. There's no need or sense
>> in creating the vio bus on bare metal systems.
>>
>> Which is why commit 4336b93
On Tue, Mar 23, 2021 at 11:02:25AM +1000, Nicholas Piggin wrote:
> The va argument is not used in the function or set by its asm caller,
> so remove it to be safe.
>
> Reviewed-by: Daniel Axtens
> Signed-off-by: Nicholas Piggin
Acked-by: Paul Mackerras
On Tue, Mar 23, 2021 at 11:02:24AM +1000, Nicholas Piggin wrote:
> This SPR is set to 0 twice when exiting the guest.
>
> Suggested-by: Fabiano Rosas
> Reviewed-by: Daniel Axtens
> Signed-off-by: Nicholas Piggin
Acked-by: Paul Mackerras
On Tue, Mar 23, 2021 at 11:02:26AM +1000, Nicholas Piggin wrote:
> This config option causes the warning in init_default_hcalls to fire
> because the TCE handlers are in the default hcall list but not
> implemented.
>
> Reviewed-by: Daniel Axtens
> Signed-off-by: Nicholas Piggin
Acked-by: Paul
On Tue, Mar 23, 2021 at 11:02:27AM +1000, Nicholas Piggin wrote:
> Cell does not support KVM.
>
> Reviewed-by: Fabiano Rosas
> Signed-off-by: Nicholas Piggin
Acked-by: Paul Mackerras
On Tue, Mar 23, 2021 at 11:02:28AM +1000, Nicholas Piggin wrote:
> The code being executed in KVM_GUEST_MODE_SKIP is hypervisor code with
> MSR[IR]=0, so the faults of concern are the d-side ones caused by access
> to guest context by the hypervisor.
>
> Instruction breakpoint interrupts are not a
On Tue, Mar 23, 2021 at 11:02:29AM +1000, Nicholas Piggin wrote:
> Rather than add the ME bit to the MSR at guest entry, make it clear
> that the hypervisor does not allow the guest to clear the bit.
>
> The ME set is kept in guest entry for now, but a future patch will
> warn if it's not present.
On Tue, Mar 23, 2021 at 11:02:30AM +1000, Nicholas Piggin wrote:
> Rather than clear the HV bit from the MSR at guest entry, make it clear
> that the hypervisor does not allow the guest to set the bit.
>
> The HV clear is kept in guest entry for now, but a future patch will
> warn if it's not pres
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