linux/arch/x86/include
Vitaly Kuznetsov ec08449172 x86/hyper-v: Mark TLFS structures packed
The TLFS structures are used for hypervisor-guest communication and must
exactly meet the specification.

Compilers can add alignment padding to structures or reorder struct members
for randomization and optimization, which would break the hypervisor ABI.

Mark the structures as packed to prevent this. 'struct hv_vp_assist_page'
and 'struct hv_enlightened_vmcs' need to be properly padded to support the
change.

Suggested-by: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Nadav Amit <nadav.amit@gmail.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14 17:59:52 +01:00
..
asm x86/hyper-v: Mark TLFS structures packed 2018-12-14 17:59:52 +01:00
uapi/asm x86/acpi, x86/boot: Take RSDP address from boot params if available 2018-11-20 09:43:11 +01:00