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| author | Paolo Bonzini <[email protected]> | 2017-08-23 21:16:29 +0000 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2017-08-25 07:28:37 +0000 |
| commit | 38cfd5e3df9c4f88e76b547eee2087ee5c042ae2 (patch) | |
| tree | a6f60166609560bc722887d8449872599a2498bf /net/switchdev/switchdev.c | |
| parent | KVM: x86: simplify handling of PKRU (diff) | |
| download | kernel-38cfd5e3df9c4f88e76b547eee2087ee5c042ae2.tar.gz kernel-38cfd5e3df9c4f88e76b547eee2087ee5c042ae2.zip | |
KVM, pkeys: do not use PKRU value in vcpu->arch.guest_fpu.state
The host pkru is restored right after vcpu exit (commit 1be0e61), so
KVM_GET_XSAVE will return the host PKRU value instead. Fix this by
using the guest PKRU explicitly in fill_xsave and load_xsave. This
part is based on a patch by Junkang Fu.
The host PKRU data may also not match the value in vcpu->arch.guest_fpu.state,
because it could have been changed by userspace since the last time
it was saved, so skip loading it in kvm_load_guest_fpu.
Reported-by: Junkang Fu <[email protected]>
Cc: Yang Zhang <[email protected]>
Fixes: 1be0e61c1f255faaeab04a390e00c8b9b9042870
Cc: [email protected]
Signed-off-by: Paolo Bonzini <[email protected]>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions