diff options
| author | Tom Lendacky | 2021-02-01 12:26:27 -0600 |
|---|---|---|
| committer | Borislav Petkov | 2021-02-02 16:25:05 +0100 |
| commit | 62a08a7193dc9107904aaa51a04ba3ba2959f745 (patch) | |
| tree | c99ef8b81224ce4c1069e93137b45da1a358bd7b /net | |
| parent | 1048ba83fb1c00cd24172e23e8263972f6b5d9ac (diff) | |
x86/sev-es: Do not unroll string I/O for SEV-ES guests
Under the GHCB specification, SEV-ES guests can support string I/O.
The current #VC handler contains this support, so remove the need to
unroll kernel string I/O operations. This will reduce the number of #VC
exceptions generated as well as the number VM exits for the guest.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/3de04b5b638546ac75d42ba52307fe1a922173d3.1612203987.git.thomas.lendacky@amd.com
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions