[PATCH] Drivers: hv: vmbus: Fix virt_to_hvpfn() for X86_PAE

Michael Kelley mikelley at microsoft.com
Tue May 7 12:51:51 UTC 2019

From: Dexuan Cui <decui at microsoft.com> Sent: Tuesday, May 7, 2019 12:47 AM
> In the case of X86_PAE, unsigned long is u32, but the physical address type
> should be u64. Due to the bug here, the netvsc driver can not load
> successfully, and sometimes the VM can panic due to memory corruption (the
> hypervisor writes data to the wrong location).
> Fixes: 6ba34171bcbd ("Drivers: hv: vmbus: Remove use of slow_virt_to_phys()")
> Cc: stable at vger.kernel.org
> Cc: Michael Kelley <mikelley at microsoft.com>
> Reported-and-tested-by: Juliana Rodrigueiro <juliana.rodrigueiro at intra2net.com>
> Signed-off-by: Dexuan Cui <decui at microsoft.com>

Reviewed-by:  Michael Kelley <mikelley at microsoft.com>

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