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KVM: VMX: Fix IBRS handling after vmexit
authorJosh Poimboeuf <jpoimboe@kernel.org>
Tue, 14 Jun 2022 21:16:14 +0000 (23:16 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 23 Jul 2022 10:54:08 +0000 (12:54 +0200)
commit4207d7b645b82b9a2c0faffeb9f36999ac040a2a
tree0ef5c0df481d0e06f012d234ea7b781de2b46bb4tree | snapshot
parent0cbd5905c8f3b5da498c21c4deee347622b3420bcommit | diff
KVM: VMX: Fix IBRS handling after vmexit

commit bea7e31a5caccb6fe8ed989c065072354f0ecb52 upstream.

For legacy IBRS to work, the IBRS bit needs to be always re-written
after vmexit, even if it's already on.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/kvm/vmx/vmx.c diff | blob | history
Domain: System / Kernel;