* [PATCH kernel] powerpc/init: Do not advertise radix during client-architecture-support
@ 2018-01-09 5:45 Alexey Kardashevskiy
2018-02-15 5:44 ` Alexey Kardashevskiy
2018-03-28 14:13 ` [kernel] " Michael Ellerman
0 siblings, 2 replies; 3+ messages in thread
From: Alexey Kardashevskiy @ 2018-01-09 5:45 UTC (permalink / raw)
To: linuxppc-dev; +Cc: Alexey Kardashevskiy
Currently the pseries kernel advertises radix MMU support even if
the actual support is disabled via the CONFIG_PPC_RADIX_MMU option.
This adds a check for CONFIG_PPC_RADIX_MMU to avoid advertising radix
to the hypervisor.
Suggested-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
arch/powerpc/kernel/prom_init.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 02190e9..65879df 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -1109,7 +1109,8 @@ static void __init prom_check_platform_support(void)
}
}
- if (supported.radix_mmu && supported.radix_gtse) {
+ if (supported.radix_mmu && supported.radix_gtse &&
+ IS_ENABLED(CONFIG_PPC_RADIX_MMU)) {
/* Radix preferred - but we require GTSE for now */
prom_debug("Asking for radix with GTSE\n");
ibm_architecture_vec.vec5.mmu = OV5_FEAT(OV5_MMU_RADIX);
--
2.11.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH kernel] powerpc/init: Do not advertise radix during client-architecture-support
2018-01-09 5:45 [PATCH kernel] powerpc/init: Do not advertise radix during client-architecture-support Alexey Kardashevskiy
@ 2018-02-15 5:44 ` Alexey Kardashevskiy
2018-03-28 14:13 ` [kernel] " Michael Ellerman
1 sibling, 0 replies; 3+ messages in thread
From: Alexey Kardashevskiy @ 2018-02-15 5:44 UTC (permalink / raw)
To: linuxppc-dev
On 09/01/18 16:45, Alexey Kardashevskiy wrote:
> Currently the pseries kernel advertises radix MMU support even if
> the actual support is disabled via the CONFIG_PPC_RADIX_MMU option.
>
> This adds a check for CONFIG_PPC_RADIX_MMU to avoid advertising radix
> to the hypervisor.
>
> Suggested-by: Paul Mackerras <paulus@ozlabs.org>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Ping?
> ---
> arch/powerpc/kernel/prom_init.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
> index 02190e9..65879df 100644
> --- a/arch/powerpc/kernel/prom_init.c
> +++ b/arch/powerpc/kernel/prom_init.c
> @@ -1109,7 +1109,8 @@ static void __init prom_check_platform_support(void)
> }
> }
>
> - if (supported.radix_mmu && supported.radix_gtse) {
> + if (supported.radix_mmu && supported.radix_gtse &&
> + IS_ENABLED(CONFIG_PPC_RADIX_MMU)) {
> /* Radix preferred - but we require GTSE for now */
> prom_debug("Asking for radix with GTSE\n");
> ibm_architecture_vec.vec5.mmu = OV5_FEAT(OV5_MMU_RADIX);
>
--
Alexey
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [kernel] powerpc/init: Do not advertise radix during client-architecture-support
2018-01-09 5:45 [PATCH kernel] powerpc/init: Do not advertise radix during client-architecture-support Alexey Kardashevskiy
2018-02-15 5:44 ` Alexey Kardashevskiy
@ 2018-03-28 14:13 ` Michael Ellerman
1 sibling, 0 replies; 3+ messages in thread
From: Michael Ellerman @ 2018-03-28 14:13 UTC (permalink / raw)
To: Alexey Kardashevskiy, linuxppc-dev; +Cc: Alexey Kardashevskiy
On Tue, 2018-01-09 at 05:45:20 UTC, Alexey Kardashevskiy wrote:
> Currently the pseries kernel advertises radix MMU support even if
> the actual support is disabled via the CONFIG_PPC_RADIX_MMU option.
>
> This adds a check for CONFIG_PPC_RADIX_MMU to avoid advertising radix
> to the hypervisor.
>
> Suggested-by: Paul Mackerras <paulus@ozlabs.org>
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/79b4686857029cdea97d0102d179ae
cheers
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2018-03-28 14:13 UTC | newest]
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2018-01-09 5:45 [PATCH kernel] powerpc/init: Do not advertise radix during client-architecture-support Alexey Kardashevskiy
2018-02-15 5:44 ` Alexey Kardashevskiy
2018-03-28 14:13 ` [kernel] " Michael Ellerman
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