arm: Remove 32bit KVM host support

That's it. Remove all references to KVM itself, and document
that although it is no more, the ABI between SVC and HYP still
exists.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@arm.com>

1 files changed, 0 insertions, 72 deletions

diff --git a/arch/arm/kvm/hyp/cp15-sr.c b/arch/arm/kvm/hyp/cp15-sr.c
deleted file mode 100644
index e6923306f698..000000000000
--- a/arch/arm/kvm/hyp/cp15-sr.c
+++ /dev/null
@@ -1,72 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Original code:
- * Copyright (C) 2012 - Virtual Open Systems and Columbia University
- * Author: Christoffer Dall <c.dall@virtualopensystems.com>
- *
- * Mostly rewritten in C by Marc Zyngier <marc.zyngier@arm.com>
- */
-
-#include <asm/kvm_hyp.h>
-
-static u64 *cp15_64(struct kvm_cpu_context *ctxt, int idx)
-{
-	return (u64 *)(ctxt->cp15 + idx);
-}
-
-void __hyp_text __sysreg_save_state(struct kvm_cpu_context *ctxt)
-{
-	ctxt->cp15[c0_CSSELR]		= read_sysreg(CSSELR);
-	ctxt->cp15[c1_SCTLR]		= read_sysreg(SCTLR);
-	ctxt->cp15[c1_CPACR]		= read_sysreg(CPACR);
-	*cp15_64(ctxt, c2_TTBR0)	= read_sysreg(TTBR0);
-	*cp15_64(ctxt, c2_TTBR1)	= read_sysreg(TTBR1);
-	ctxt->cp15[c2_TTBCR]		= read_sysreg(TTBCR);
-	ctxt->cp15[c3_DACR]		= read_sysreg(DACR);
-	ctxt->cp15[c5_DFSR]		= read_sysreg(DFSR);
-	ctxt->cp15[c5_IFSR]		= read_sysreg(IFSR);
-	ctxt->cp15[c5_ADFSR]		= read_sysreg(ADFSR);
-	ctxt->cp15[c5_AIFSR]		= read_sysreg(AIFSR);
-	ctxt->cp15[c6_DFAR]		= read_sysreg(DFAR);
-	ctxt->cp15[c6_IFAR]		= read_sysreg(IFAR);
-	*cp15_64(ctxt, c7_PAR)		= read_sysreg(PAR);
-	ctxt->cp15[c10_PRRR]		= read_sysreg(PRRR);
-	ctxt->cp15[c10_NMRR]		= read_sysreg(NMRR);
-	ctxt->cp15[c10_AMAIR0]		= read_sysreg(AMAIR0);
-	ctxt->cp15[c10_AMAIR1]		= read_sysreg(AMAIR1);
-	ctxt->cp15[c12_VBAR]		= read_sysreg(VBAR);
-	ctxt->cp15[c13_CID]		= read_sysreg(CID);
-	ctxt->cp15[c13_TID_URW]		= read_sysreg(TID_URW);
-	ctxt->cp15[c13_TID_URO]		= read_sysreg(TID_URO);
-	ctxt->cp15[c13_TID_PRIV]	= read_sysreg(TID_PRIV);
-	ctxt->cp15[c14_CNTKCTL]		= read_sysreg(CNTKCTL);
-}
-
-void __hyp_text __sysreg_restore_state(struct kvm_cpu_context *ctxt)
-{
-	write_sysreg(ctxt->cp15[c0_MPIDR],	VMPIDR);
-	write_sysreg(ctxt->cp15[c0_CSSELR],	CSSELR);
-	write_sysreg(ctxt->cp15[c1_SCTLR],	SCTLR);
-	write_sysreg(ctxt->cp15[c1_CPACR],	CPACR);
-	write_sysreg(*cp15_64(ctxt, c2_TTBR0),	TTBR0);
-	write_sysreg(*cp15_64(ctxt, c2_TTBR1),	TTBR1);
-	write_sysreg(ctxt->cp15[c2_TTBCR],	TTBCR);
-	write_sysreg(ctxt->cp15[c3_DACR],	DACR);
-	write_sysreg(ctxt->cp15[c5_DFSR],	DFSR);
-	write_sysreg(ctxt->cp15[c5_IFSR],	IFSR);
-	write_sysreg(ctxt->cp15[c5_ADFSR],	ADFSR);
-	write_sysreg(ctxt->cp15[c5_AIFSR],	AIFSR);
-	write_sysreg(ctxt->cp15[c6_DFAR],	DFAR);
-	write_sysreg(ctxt->cp15[c6_IFAR],	IFAR);
-	write_sysreg(*cp15_64(ctxt, c7_PAR),	PAR);
-	write_sysreg(ctxt->cp15[c10_PRRR],	PRRR);
-	write_sysreg(ctxt->cp15[c10_NMRR],	NMRR);
-	write_sysreg(ctxt->cp15[c10_AMAIR0],	AMAIR0);
-	write_sysreg(ctxt->cp15[c10_AMAIR1],	AMAIR1);
-	write_sysreg(ctxt->cp15[c12_VBAR],	VBAR);
-	write_sysreg(ctxt->cp15[c13_CID],	CID);
-	write_sysreg(ctxt->cp15[c13_TID_URW],	TID_URW);
-	write_sysreg(ctxt->cp15[c13_TID_URO],	TID_URO);
-	write_sysreg(ctxt->cp15[c13_TID_PRIV],	TID_PRIV);
-	write_sysreg(ctxt->cp15[c14_CNTKCTL],	CNTKCTL);
-}