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From: Paul Mackerras <paulus@ozlabs.org>
To: Segher Boessenkool <segher@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH v2 2/9] powerpc: Add Microwatt device tree
Date: Sun, 20 Jun 2021 22:08:58 +1000	[thread overview]
Message-ID: <YM8v2ricaCzGi2vv@thinks.paulus.ozlabs.org> (raw)
In-Reply-To: <20210619142616.GW5077@gate.crashing.org>

On Sat, Jun 19, 2021 at 09:26:16AM -0500, Segher Boessenkool wrote:
> On Fri, Jun 18, 2021 at 01:44:16PM +1000, Paul Mackerras wrote:
> > Microwatt currently runs with MSR[HV] = 0,
> 
> That isn't compliant though?  If your implementation does not have LPAR
> it must set MSR[HV]=1 always.

True - but if I actually do that, Linux starts trying to use hrfid
(for example in masked_Hinterrupt), which Microwatt doesn't have.
Something for Nick to fix. :)

Paul.

  reply	other threads:[~2021-06-20 21:55 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-18  3:42 [PATCH v2 0/9] powerpc: Add support for Microwatt soft-core Paul Mackerras
2021-06-18  3:43 ` [PATCH v2 1/9] powerpc: Add Microwatt platform Paul Mackerras
2021-06-19  3:03   ` Nicholas Piggin
2021-06-18  3:44 ` [PATCH v2 2/9] powerpc: Add Microwatt device tree Paul Mackerras
2021-06-19 14:26   ` Segher Boessenkool
2021-06-20 12:08     ` Paul Mackerras [this message]
2021-06-21 13:54       ` Segher Boessenkool
2021-06-18  3:45 ` [PATCH v2 3/9] powerpc/microwatt: Populate platform bus from device-tree Paul Mackerras
2021-06-18  3:45 ` [PATCH v2 4/9] powerpc/xics: Add a native ICS backend for microwatt Paul Mackerras
2021-06-18  3:46 ` [PATCH v2 5/9] powerpc/microwatt: Use standard 16550 UART for console Paul Mackerras
2021-06-18  7:40   ` Nicholas Piggin
2021-06-18 12:12     ` Paul Mackerras
2021-06-19  2:58       ` Nicholas Piggin
2021-08-12 13:14   ` Christophe Leroy
2021-08-12 16:09     ` Segher Boessenkool
2021-06-18  3:47 ` [PATCH v2 6/9] powerpc/microwatt: Add support for hardware random number generator Paul Mackerras
2021-06-19  3:08   ` Nicholas Piggin
2021-06-19 14:36     ` Segher Boessenkool
2021-06-20  8:19       ` Nicholas Piggin
2021-06-18  3:48 ` [PATCH v2 7/9] powerpc/microwatt: Add microwatt_defconfig Paul Mackerras
2021-06-18  3:49 ` [PATCH v2 8/9] powerpc/boot: Fixup device-tree on little endian Paul Mackerras
2021-06-19  3:14   ` Nicholas Piggin
2021-06-18  3:49 ` [PATCH v2 9/9] powerpc/boot: Add a boot wrapper for Microwatt Paul Mackerras
2021-06-19  3:16   ` Nicholas Piggin
2021-06-19 14:45 ` [PATCH v2 0/9] powerpc: Add support for Microwatt soft-core Segher Boessenkool
2021-06-24 14:03 ` Michael Ellerman

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