kernel.git/arch/powerpc/kernel/kvm_emul.S, branch linux-5.3.y

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266

2019-06-05T15:30:28Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 67 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141333.953658117@linutronix.de Signed-off-by: Greg Kroah-Hartman

powerpc: move ASM_CONST and stringify_in_c() into asm-const.h

2018-07-30T12:48:16Z

This patch moves ASM_CONST() and stringify_in_c() into dedicated asm-const.h, then cleans all related inclusions. Signed-off-by: Christophe Leroy [mpe: asm-compat.h should include asm-const.h] Signed-off-by: Michael Ellerman

KVM: PPC: Not optimizing MSR_CE and MSR_ME with paravirt.

2012-05-30T09:43:11Z

If there is pending critical or machine check interrupt then guest would like to capture it when guest enable MSR.CE and MSR_ME respectively. Also as mostly MSR_CE and MSR_ME are updated with rfi/rfci/rfmii which anyway traps so removing the the paravirt optimization for MSR.CE and MSR.ME. Signed-off-by: Bharat Bhushan Signed-off-by: Alexander Graf

KVM: PPC: Factor out guest epapr initialization

2012-05-30T09:43:10Z

epapr paravirtualization support is now a Kconfig selectable option Signed-off-by: Liu Yu [stuart.yoder@freescale.com: misc minor fixes, description update] Signed-off-by: Stuart Yoder Signed-off-by: Alexander Graf

KVM: PPC: Avoid patching paravirt template code

2012-03-05T12:52:34Z

Currently we patch the whole code include paravirt template code. This isn't safe for scratch area and has impact to performance. Signed-off-by: Liu Yu Signed-off-by: Alexander Graf Signed-off-by: Avi Kivity

KVM: PPC: booke: Paravirtualize wrtee

2012-03-05T12:52:26Z

Also fix wrteei 1 paravirt to check for a pending interrupt. Signed-off-by: Scott Wood Signed-off-by: Alexander Graf Signed-off-by: Avi Kivity

PPC: Fix race in mtmsr paravirt implementation

2012-03-05T12:52:24Z

The current implementation of mtmsr and mtmsrd are racy in that it does: * check (int_pending == 0) ---> host sets int_pending = 1 <--- * write shared page * done while instead we should check for int_pending after the shared page is written. Signed-off-by: Bharat Bhushan Signed-off-by: Alexander Graf Signed-off-by: Avi Kivity

KVM: PPC: Make PV mtmsrd L=1 work with r30 and r31

2010-10-24T08:52:14Z

We had an arbitrary limitation in mtmsrd L=1 that kept us from using r30 and r31 as input registers. Let's get rid of that and get more potential speedups! Signed-off-by: Alexander Graf

KVM: PPC: Make PV mtmsr work with r30 and r31

2010-10-24T08:52:13Z

So far we've been restricting ourselves to r0-r29 as registers an mtmsr instruction could use. This was bad, as there are some code paths in Linux actually using r30. So let's instead handle all registers gracefully and get rid of that stupid limitation Signed-off-by: Alexander Graf

KVM: PPC: Add mtsrin PV code

2010-10-24T08:52:12Z

This is the guest side of the mtsr acceleration. Using this a guest can now call mtsrin with almost no overhead as long as it ensures that it only uses it with (MSR_IR|MSR_DR) == 0. Linux does that, so we're good. Signed-off-by: Alexander Graf