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| author | Ingo Molnar <mingo@kernel.org> | 2017-11-07 10:53:06 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-11-07 10:53:06 +0100 |
| commit | b3d9a136815ca9284ade2a897a3b7d2b0084c33c (patch) | |
| tree | af222e53d833ff7218577cf98e1b856d9d6bda93 /arch/arm64/kvm | |
| parent | c7da092a1f243bfd1bfb4124f538e69e941882da (diff) | |
| parent | e4880bc5dfb1f02b152e62a894b5c6f3e995b3cf (diff) | |
| download | op-kernel-dev-b3d9a136815ca9284ade2a897a3b7d2b0084c33c.zip op-kernel-dev-b3d9a136815ca9284ade2a897a3b7d2b0084c33c.tar.gz | |
Merge branch 'linus' into x86/asm, to pick up fixes and resolve conflicts
Conflicts:
arch/x86/kernel/cpu/Makefile
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm64/kvm/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm64/kvm/inject_fault.c | 16 | ||||
| -rw-r--r-- | arch/arm64/kvm/trace.h | 1 |
5 files changed, 20 insertions, 2 deletions
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index 52cb7ad..13f81f9 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # KVM configuration # diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile index 5d98100..861acbb 100644 --- a/arch/arm64/kvm/Makefile +++ b/arch/arm64/kvm/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for Kernel-based Virtual Machine module # diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile index 14c4e3b..f04400d 100644 --- a/arch/arm64/kvm/hyp/Makefile +++ b/arch/arm64/kvm/hyp/Makefile @@ -1,8 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for Kernel-based Virtual Machine module, HYP part # -ccflags-y += -fno-stack-protector +ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING KVM=../../../../virt/kvm diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c index da6a8cf..3556715a 100644 --- a/arch/arm64/kvm/inject_fault.c +++ b/arch/arm64/kvm/inject_fault.c @@ -33,12 +33,26 @@ #define LOWER_EL_AArch64_VECTOR 0x400 #define LOWER_EL_AArch32_VECTOR 0x600 +/* + * Table taken from ARMv8 ARM DDI0487B-B, table G1-10. + */ +static const u8 return_offsets[8][2] = { + [0] = { 0, 0 }, /* Reset, unused */ + [1] = { 4, 2 }, /* Undefined */ + [2] = { 0, 0 }, /* SVC, unused */ + [3] = { 4, 4 }, /* Prefetch abort */ + [4] = { 8, 8 }, /* Data abort */ + [5] = { 0, 0 }, /* HVC, unused */ + [6] = { 4, 4 }, /* IRQ, unused */ + [7] = { 4, 4 }, /* FIQ, unused */ +}; + static void prepare_fault32(struct kvm_vcpu *vcpu, u32 mode, u32 vect_offset) { unsigned long cpsr; unsigned long new_spsr_value = *vcpu_cpsr(vcpu); bool is_thumb = (new_spsr_value & COMPAT_PSR_T_BIT); - u32 return_offset = (is_thumb) ? 4 : 0; + u32 return_offset = return_offsets[vect_offset >> 2][is_thumb]; u32 sctlr = vcpu_cp15(vcpu, c1_SCTLR); cpsr = mode | COMPAT_PSR_I_BIT; diff --git a/arch/arm64/kvm/trace.h b/arch/arm64/kvm/trace.h index 5188c70..3b82fb1 100644 --- a/arch/arm64/kvm/trace.h +++ b/arch/arm64/kvm/trace.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #if !defined(_TRACE_ARM64_KVM_H) || defined(TRACE_HEADER_MULTI_READ) #define _TRACE_ARM64_KVM_H |
