Drivers: hv: Explicitly request decrypted in vmap_pfn() calls

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Update vmap_pfn() calls to explicitly request that the mapping
be for decrypted access to the memory.  There's no change in
functionality since the PFNs passed to vmap_pfn() are above the
shared_gpa_boundary, implicitly producing a decrypted mapping.
But explicitly requesting "decrypted" allows the code to work
before and after changes that cause vmap_pfn() to mask the
PFNs to being below the shared_gpa_boundary.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Link: https://lore.kernel.org/r/1679838727-87310-4-git-send-email-mikelley@microsoft.com

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Michael Kelley 2023-03-26 06:51:58 -07:00 • committed by Borislav Petkov (AMD)

parent 71290be18f

commit d33ddc92db

2 changed files with 2 additions and 2 deletions

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arch/x86/hyperv/ivm.c

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2

drivers/hv/ring_buffer.c

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