| Message ID | 20220329072911.1692766-3-apatel@ventanamicro.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Unexpected guest trap handling for KVM RISC-V selftests | expand |
On Tue, Mar 29, 2022 at 12:59 PM Anup Patel <apatel@ventanamicro.com> wrote: > > The guest_hang() function is used as the default exception handler > for various KVM selftests applications by setting it's address in > the vstvec CSR. The vstvec CSR requires exception handler base address > to be at least 4-byte aligned so this patch fixes alignment of the > guest_hang() function. > > Fixes: 3e06cdf10520 ("KVM: selftests: Add initial support for RISC-V > 64-bit") > Signed-off-by: Anup Patel <apatel@ventanamicro.com> I have queued this patch for RC fixes. Thanks, Anup > --- > tools/testing/selftests/kvm/lib/riscv/processor.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c > index d377f2603d98..3961487a4870 100644 > --- a/tools/testing/selftests/kvm/lib/riscv/processor.c > +++ b/tools/testing/selftests/kvm/lib/riscv/processor.c > @@ -268,7 +268,7 @@ void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent) > core.regs.t3, core.regs.t4, core.regs.t5, core.regs.t6); > } > > -static void guest_hang(void) > +static void __aligned(16) guest_hang(void) > { > while (1) > ; > -- > 2.25.1 >
diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c index d377f2603d98..3961487a4870 100644 --- a/tools/testing/selftests/kvm/lib/riscv/processor.c +++ b/tools/testing/selftests/kvm/lib/riscv/processor.c @@ -268,7 +268,7 @@ void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent) core.regs.t3, core.regs.t4, core.regs.t5, core.regs.t6); } -static void guest_hang(void) +static void __aligned(16) guest_hang(void) { while (1) ;
The guest_hang() function is used as the default exception handler for various KVM selftests applications by setting it's address in the vstvec CSR. The vstvec CSR requires exception handler base address to be at least 4-byte aligned so this patch fixes alignment of the guest_hang() function. Fixes: 3e06cdf10520 ("KVM: selftests: Add initial support for RISC-V 64-bit") Signed-off-by: Anup Patel <apatel@ventanamicro.com> --- tools/testing/selftests/kvm/lib/riscv/processor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)