Jon Doron ff40b1166a x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit ... [ Upstream commit f7d31e6536 ] The problem the patch is trying to address is the fact that 'struct kvm_hyperv_exit' has different layout on when compiling in 32 and 64 bit modes. In 64-bit mode the default alignment boundary is 64 bits thus forcing extra gaps after 'type' and 'msr' but in 32-bit mode the boundary is at 32 bits thus no extra gaps. This is an issue as even when the kernel is 64 bit, the userspace using the interface can be both 32 and 64 bit but the same 32 bit userspace has to work with 32 bit kernel. The issue is fixed by forcing the 64 bit layout, this leads to ABI change for 32 bit builds and while we are obviously breaking '32 bit userspace with 32 bit kernel' case, we're fixing the '32 bit userspace with 64 bit kernel' one. As the interface has no (known) users and 32 bit KVM is rather baroque nowadays, this seems like a reasonable decision. Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Jon Doron <arilou@gmail.com> Message-Id: <20200424113746.3473563-2-arilou@gmail.com> Reviewed-by: Roman Kagan <rvkagan@yandex-team.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-06-22 09:05:12 +02:00
..
asm-generic	mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes	2018-10-05 16:32:04 -07:00
drm	drm/i915: Fix I915_EXEC_RING_MASK	2019-06-11 12:20:56 +02:00
linux	x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit	2020-06-22 09:05:12 +02:00
misc
mtd	ubi: expose the volume CRC check skip flag	2018-08-15 00:25:21 +02:00
rdma	RDMA/vmw_pvrdma: Return the correct opcode when creating WR	2019-01-22 21:40:34 +01:00
scsi
sound	ASoC: uapi: fix sound/skl-tplg-interface.h userspace compilation errors	2018-08-14 15:08:07 +01:00
video
xen	xen/gntdev: Add initial support for dma-buf UAPI	2018-07-26 23:05:14 -04:00