Jon Doron af510d6fd6 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 09:30:57 +02:00
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asm-generic	mm: introduce MADV_PAGEOUT	2019-09-25 17:51:41 -07:00
drm	drm/amdgpu: return tcc_disabled_mask to userspace	2019-10-02 12:58:33 -05:00
linux	x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit	2020-06-22 09:30:57 +02:00
misc	habanalabs: stop using the acronym KMD	2019-09-05 14:55:27 +03:00
mtd	mtd: abi: do not use C++ style comments in uapi header	2019-07-07 20:31:29 +02:00
rdma	rdma: Remove nes ABI header	2020-01-17 19:48:39 +01:00
scsi	scsi: use __u{8,16,32,64} instead of uint{8,16,32,64}_t in uapi headers	2019-08-12 22:19:27 -04:00
sound	Merge branch 'asoc-5.4' into asoc-next	2019-09-09 14:55:20 +01:00
video	…
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Kbuild	kbuild: re-implement Makefile.headersinst without recursion	2019-06-15 19:57:02 +09:00