On Thu, Apr 14, 2022 at 6:59 PM Jim Mattson <jmattson@xxxxxxxxxx> wrote:
>
> The MSR-store area and the MSR-load areas must be 16-byte aligned, per
> the hardware specification.
>
> Fixes: bd1bf2d6af77a ("VMX: Test MSR load/store feature")
> Signed-off-by: Jim Mattson <jmattson@xxxxxxxxxx>
> ---
> x86/vmx_tests.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/x86/vmx_tests.c b/x86/vmx_tests.c
> index df931985ec46..4d98b7cb08dd 100644
> --- a/x86/vmx_tests.c
> +++ b/x86/vmx_tests.c
> @@ -1959,7 +1959,7 @@ struct vmx_msr_entry {
> u32 index;
> u32 reserved;
> u64 value;
> -} __attribute__((packed));
> +} __attribute__((packed, aligned(16)));
>
> #define MSR_MAGIC 0x31415926
> struct vmx_msr_entry *exit_msr_store, *entry_msr_load, *exit_msr_load;
> --
> 2.36.0.rc0.470.gd361397f0d-goog
>
Reviewed-by: Aaron Lewis <aaronlewis@xxxxxxxxxx>
