diff options
| author | David Brazdil <dbrazdil@google.com> | 2020-06-25 14:14:15 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-07-05 18:38:25 +0100 |
| commit | d400c5b2025c9aeca76213d6bd4138ec39da5cef (patch) | |
| tree | 5ef17c682735ecd0c478340ba8f601543e0963a9 /arch/arm64/kvm/hyp/vhe | |
| parent | 09cf57eba304246141367b95c89801fd2047ac96 (diff) | |
KVM: arm64: Split hyp/debug-sr.c to VHE/nVHE
debug-sr.c contains KVM's code for context-switching debug registers, with some
code shared between VHE/nVHE. These common routines are moved to a header file,
VHE-specific code is moved to vhe/debug-sr.c and nVHE-specific code to
nvhe/debug-sr.c.
Functions are slightly refactored to move code hidden behind `has_vhe()` checks
to the corresponding .c files.
Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200625131420.71444-11-dbrazdil@google.com
Diffstat (limited to 'arch/arm64/kvm/hyp/vhe')
| -rw-r--r-- | arch/arm64/kvm/hyp/vhe/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/vhe/debug-sr.c | 26 |
2 files changed, 27 insertions, 1 deletions
diff --git a/arch/arm64/kvm/hyp/vhe/Makefile b/arch/arm64/kvm/hyp/vhe/Makefile index 9f71cd3ba50d..62bdaf272b03 100644 --- a/arch/arm64/kvm/hyp/vhe/Makefile +++ b/arch/arm64/kvm/hyp/vhe/Makefile @@ -6,7 +6,7 @@ asflags-y := -D__KVM_VHE_HYPERVISOR__ ccflags-y := -D__KVM_VHE_HYPERVISOR__ -obj-y := switch.o tlb.o ../hyp-entry.o +obj-y := debug-sr.o switch.o tlb.o ../hyp-entry.o # KVM code is run at a different exception code with a different map, so # compiler instrumentation that inserts callbacks or checks into the code may diff --git a/arch/arm64/kvm/hyp/vhe/debug-sr.c b/arch/arm64/kvm/hyp/vhe/debug-sr.c new file mode 100644 index 000000000000..f1e2e5a00933 --- /dev/null +++ b/arch/arm64/kvm/hyp/vhe/debug-sr.c @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2015 - ARM Ltd + * Author: Marc Zyngier <marc.zyngier@arm.com> + */ + +#include <hyp/debug-sr.h> + +#include <linux/kvm_host.h> + +#include <asm/kvm_hyp.h> + +void __debug_switch_to_guest(struct kvm_vcpu *vcpu) +{ + __debug_switch_to_guest_common(vcpu); +} + +void __debug_switch_to_host(struct kvm_vcpu *vcpu) +{ + __debug_switch_to_host_common(vcpu); +} + +u32 __kvm_get_mdcr_el2(void) +{ + return read_sysreg(mdcr_el2); +} |