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| author | Ingo Molnar <mingo@kernel.org> | 2017-11-07 12:53:06 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-11-07 12:53:06 +0300 |
| commit | b3d9a136815ca9284ade2a897a3b7d2b0084c33c (patch) | |
| tree | af222e53d833ff7218577cf98e1b856d9d6bda93 /arch/arm64/kvm/inject_fault.c | |
| parent | c7da092a1f243bfd1bfb4124f538e69e941882da (diff) | |
| parent | e4880bc5dfb1f02b152e62a894b5c6f3e995b3cf (diff) | |
| download | linux-b3d9a136815ca9284ade2a897a3b7d2b0084c33c.tar.xz | |
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/inject_fault.c')
| -rw-r--r-- | arch/arm64/kvm/inject_fault.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c index da6a8cfa54a0..3556715a774e 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; |